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| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
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| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
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| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
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| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
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| <span id="1033">1033</span> |
| <span id="1034">1034</span> |
| <span id="1035">1035</span> |
| <span id="1036">1036</span> |
| <span id="1037">1037</span> |
| <span id="1038">1038</span> |
| <span id="1039">1039</span> |
| <span id="1040">1040</span> |
| <span id="1041">1041</span> |
| <span id="1042">1042</span> |
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| <span id="1045">1045</span> |
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| <span id="1049">1049</span> |
| <span id="1050">1050</span> |
| <span id="1051">1051</span> |
| <span id="1052">1052</span> |
| <span id="1053">1053</span> |
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| <span id="3109">3109</span> |
| <span id="3110">3110</span> |
| <span id="3111">3111</span> |
| <span id="3112">3112</span> |
| <span id="3113">3113</span> |
| <span id="3114">3114</span> |
| <span id="3115">3115</span> |
| <span id="3116">3116</span> |
| <span id="3117">3117</span> |
| <span id="3118">3118</span> |
| <span id="3119">3119</span> |
| <span id="3120">3120</span> |
| <span id="3121">3121</span> |
| <span id="3122">3122</span> |
| <span id="3123">3123</span> |
| <span id="3124">3124</span> |
| <span id="3125">3125</span> |
| <span id="3126">3126</span> |
| <span id="3127">3127</span> |
| <span id="3128">3128</span> |
| <span id="3129">3129</span> |
| <span id="3130">3130</span> |
| <span id="3131">3131</span> |
| <span id="3132">3132</span> |
| <span id="3133">3133</span> |
| <span id="3134">3134</span> |
| <span id="3135">3135</span> |
| <span id="3136">3136</span> |
| <span id="3137">3137</span> |
| <span id="3138">3138</span> |
| <span id="3139">3139</span> |
| <span id="3140">3140</span> |
| <span id="3141">3141</span> |
| <span id="3142">3142</span> |
| <span id="3143">3143</span> |
| <span id="3144">3144</span> |
| <span id="3145">3145</span> |
| <span id="3146">3146</span> |
| <span id="3147">3147</span> |
| <span id="3148">3148</span> |
| <span id="3149">3149</span> |
| <span id="3150">3150</span> |
| <span id="3151">3151</span> |
| <span id="3152">3152</span> |
| <span id="3153">3153</span> |
| <span id="3154">3154</span> |
| <span id="3155">3155</span> |
| <span id="3156">3156</span> |
| <span id="3157">3157</span> |
| <span id="3158">3158</span> |
| <span id="3159">3159</span> |
| <span id="3160">3160</span> |
| <span id="3161">3161</span> |
| <span id="3162">3162</span> |
| <span id="3163">3163</span> |
| <span id="3164">3164</span> |
| <span id="3165">3165</span> |
| <span id="3166">3166</span> |
| <span id="3167">3167</span> |
| <span id="3168">3168</span> |
| <span id="3169">3169</span> |
| <span id="3170">3170</span> |
| <span id="3171">3171</span> |
| <span id="3172">3172</span> |
| <span id="3173">3173</span> |
| <span id="3174">3174</span> |
| <span id="3175">3175</span> |
| <span id="3176">3176</span> |
| <span id="3177">3177</span> |
| <span id="3178">3178</span> |
| <span id="3179">3179</span> |
| <span id="3180">3180</span> |
| <span id="3181">3181</span> |
| <span id="3182">3182</span> |
| <span id="3183">3183</span> |
| <span id="3184">3184</span> |
| <span id="3185">3185</span> |
| <span id="3186">3186</span> |
| <span id="3187">3187</span> |
| <span id="3188">3188</span> |
| <span id="3189">3189</span> |
| <span id="3190">3190</span> |
| <span id="3191">3191</span> |
| <span id="3192">3192</span> |
| <span id="3193">3193</span> |
| <span id="3194">3194</span> |
| <span id="3195">3195</span> |
| <span id="3196">3196</span> |
| <span id="3197">3197</span> |
| <span id="3198">3198</span> |
| <span id="3199">3199</span> |
| <span id="3200">3200</span> |
| <span id="3201">3201</span> |
| <span id="3202">3202</span> |
| <span id="3203">3203</span> |
| <span id="3204">3204</span> |
| <span id="3205">3205</span> |
| <span id="3206">3206</span> |
| <span id="3207">3207</span> |
| <span id="3208">3208</span> |
| <span id="3209">3209</span> |
| <span id="3210">3210</span> |
| <span id="3211">3211</span> |
| <span id="3212">3212</span> |
| <span id="3213">3213</span> |
| <span id="3214">3214</span> |
| <span id="3215">3215</span> |
| <span id="3216">3216</span> |
| <span id="3217">3217</span> |
| <span id="3218">3218</span> |
| <span id="3219">3219</span> |
| <span id="3220">3220</span> |
| <span id="3221">3221</span> |
| <span id="3222">3222</span> |
| <span id="3223">3223</span> |
| <span id="3224">3224</span> |
| <span id="3225">3225</span> |
| <span id="3226">3226</span> |
| <span id="3227">3227</span> |
| <span id="3228">3228</span> |
| <span id="3229">3229</span> |
| <span id="3230">3230</span> |
| <span id="3231">3231</span> |
| <span id="3232">3232</span> |
| <span id="3233">3233</span> |
| <span id="3234">3234</span> |
| <span id="3235">3235</span> |
| <span id="3236">3236</span> |
| <span id="3237">3237</span> |
| <span id="3238">3238</span> |
| <span id="3239">3239</span> |
| <span id="3240">3240</span> |
| <span id="3241">3241</span> |
| <span id="3242">3242</span> |
| <span id="3243">3243</span> |
| <span id="3244">3244</span> |
| <span id="3245">3245</span> |
| <span id="3246">3246</span> |
| <span id="3247">3247</span> |
| <span id="3248">3248</span> |
| <span id="3249">3249</span> |
| <span id="3250">3250</span> |
| <span id="3251">3251</span> |
| <span id="3252">3252</span> |
| <span id="3253">3253</span> |
| <span id="3254">3254</span> |
| <span id="3255">3255</span> |
| <span id="3256">3256</span> |
| <span id="3257">3257</span> |
| <span id="3258">3258</span> |
| <span id="3259">3259</span> |
| <span id="3260">3260</span> |
| <span id="3261">3261</span> |
| <span id="3262">3262</span> |
| <span id="3263">3263</span> |
| <span id="3264">3264</span> |
| <span id="3265">3265</span> |
| <span id="3266">3266</span> |
| <span id="3267">3267</span> |
| <span id="3268">3268</span> |
| <span id="3269">3269</span> |
| <span id="3270">3270</span> |
| <span id="3271">3271</span> |
| <span id="3272">3272</span> |
| <span id="3273">3273</span> |
| <span id="3274">3274</span> |
| <span id="3275">3275</span> |
| <span id="3276">3276</span> |
| <span id="3277">3277</span> |
| <span id="3278">3278</span> |
| <span id="3279">3279</span> |
| <span id="3280">3280</span> |
| <span id="3281">3281</span> |
| <span id="3282">3282</span> |
| <span id="3283">3283</span> |
| <span id="3284">3284</span> |
| <span id="3285">3285</span> |
| <span id="3286">3286</span> |
| <span id="3287">3287</span> |
| <span id="3288">3288</span> |
| <span id="3289">3289</span> |
| <span id="3290">3290</span> |
| <span id="3291">3291</span> |
| <span id="3292">3292</span> |
| <span id="3293">3293</span> |
| <span id="3294">3294</span> |
| <span id="3295">3295</span> |
| <span id="3296">3296</span> |
| <span id="3297">3297</span> |
| <span id="3298">3298</span> |
| <span id="3299">3299</span> |
| <span id="3300">3300</span> |
| <span id="3301">3301</span> |
| <span id="3302">3302</span> |
| <span id="3303">3303</span> |
| <span id="3304">3304</span> |
| <span id="3305">3305</span> |
| <span id="3306">3306</span> |
| <span id="3307">3307</span> |
| <span id="3308">3308</span> |
| <span id="3309">3309</span> |
| <span id="3310">3310</span> |
| <span id="3311">3311</span> |
| <span id="3312">3312</span> |
| <span id="3313">3313</span> |
| <span id="3314">3314</span> |
| <span id="3315">3315</span> |
| <span id="3316">3316</span> |
| <span id="3317">3317</span> |
| <span id="3318">3318</span> |
| <span id="3319">3319</span> |
| <span id="3320">3320</span> |
| <span id="3321">3321</span> |
| <span id="3322">3322</span> |
| <span id="3323">3323</span> |
| <span id="3324">3324</span> |
| <span id="3325">3325</span> |
| <span id="3326">3326</span> |
| <span id="3327">3327</span> |
| <span id="3328">3328</span> |
| <span id="3329">3329</span> |
| <span id="3330">3330</span> |
| <span id="3331">3331</span> |
| <span id="3332">3332</span> |
| <span id="3333">3333</span> |
| <span id="3334">3334</span> |
| <span id="3335">3335</span> |
| <span id="3336">3336</span> |
| <span id="3337">3337</span> |
| <span id="3338">3338</span> |
| <span id="3339">3339</span> |
| <span id="3340">3340</span> |
| <span id="3341">3341</span> |
| <span id="3342">3342</span> |
| <span id="3343">3343</span> |
| <span id="3344">3344</span> |
| <span id="3345">3345</span> |
| <span id="3346">3346</span> |
| <span id="3347">3347</span> |
| <span id="3348">3348</span> |
| <span id="3349">3349</span> |
| <span id="3350">3350</span> |
| <span id="3351">3351</span> |
| <span id="3352">3352</span> |
| <span id="3353">3353</span> |
| <span id="3354">3354</span> |
| <span id="3355">3355</span> |
| <span id="3356">3356</span> |
| <span id="3357">3357</span> |
| <span id="3358">3358</span> |
| <span id="3359">3359</span> |
| <span id="3360">3360</span> |
| <span id="3361">3361</span> |
| <span id="3362">3362</span> |
| <span id="3363">3363</span> |
| <span id="3364">3364</span> |
| <span id="3365">3365</span> |
| <span id="3366">3366</span> |
| <span id="3367">3367</span> |
| <span id="3368">3368</span> |
| <span id="3369">3369</span> |
| <span id="3370">3370</span> |
| <span id="3371">3371</span> |
| <span id="3372">3372</span> |
| <span id="3373">3373</span> |
| <span id="3374">3374</span> |
| <span id="3375">3375</span> |
| <span id="3376">3376</span> |
| <span id="3377">3377</span> |
| <span id="3378">3378</span> |
| <span id="3379">3379</span> |
| <span id="3380">3380</span> |
| <span id="3381">3381</span> |
| <span id="3382">3382</span> |
| <span id="3383">3383</span> |
| <span id="3384">3384</span> |
| <span id="3385">3385</span> |
| <span id="3386">3386</span> |
| <span id="3387">3387</span> |
| <span id="3388">3388</span> |
| <span id="3389">3389</span> |
| <span id="3390">3390</span> |
| <span id="3391">3391</span> |
| <span id="3392">3392</span> |
| <span id="3393">3393</span> |
| <span id="3394">3394</span> |
| <span id="3395">3395</span> |
| <span id="3396">3396</span> |
| <span id="3397">3397</span> |
| <span id="3398">3398</span> |
| <span id="3399">3399</span> |
| <span id="3400">3400</span> |
| <span id="3401">3401</span> |
| <span id="3402">3402</span> |
| <span id="3403">3403</span> |
| <span id="3404">3404</span> |
| <span id="3405">3405</span> |
| <span id="3406">3406</span> |
| <span id="3407">3407</span> |
| <span id="3408">3408</span> |
| <span id="3409">3409</span> |
| <span id="3410">3410</span> |
| <span id="3411">3411</span> |
| <span id="3412">3412</span> |
| <span id="3413">3413</span> |
| <span id="3414">3414</span> |
| <span id="3415">3415</span> |
| <span id="3416">3416</span> |
| <span id="3417">3417</span> |
| <span id="3418">3418</span> |
| <span id="3419">3419</span> |
| <span id="3420">3420</span> |
| <span id="3421">3421</span> |
| <span id="3422">3422</span> |
| <span id="3423">3423</span> |
| <span id="3424">3424</span> |
| <span id="3425">3425</span> |
| <span id="3426">3426</span> |
| <span id="3427">3427</span> |
| <span id="3428">3428</span> |
| <span id="3429">3429</span> |
| <span id="3430">3430</span> |
| <span id="3431">3431</span> |
| <span id="3432">3432</span> |
| <span id="3433">3433</span> |
| <span id="3434">3434</span> |
| <span id="3435">3435</span> |
| <span id="3436">3436</span> |
| <span id="3437">3437</span> |
| <span id="3438">3438</span> |
| <span id="3439">3439</span> |
| <span id="3440">3440</span> |
| <span id="3441">3441</span> |
| <span id="3442">3442</span> |
| <span id="3443">3443</span> |
| <span id="3444">3444</span> |
| <span id="3445">3445</span> |
| <span id="3446">3446</span> |
| <span id="3447">3447</span> |
| <span id="3448">3448</span> |
| <span id="3449">3449</span> |
| <span id="3450">3450</span> |
| <span id="3451">3451</span> |
| <span id="3452">3452</span> |
| <span id="3453">3453</span> |
| <span id="3454">3454</span> |
| <span id="3455">3455</span> |
| <span id="3456">3456</span> |
| <span id="3457">3457</span> |
| <span id="3458">3458</span> |
| <span id="3459">3459</span> |
| <span id="3460">3460</span> |
| <span id="3461">3461</span> |
| <span id="3462">3462</span> |
| <span id="3463">3463</span> |
| <span id="3464">3464</span> |
| <span id="3465">3465</span> |
| <span id="3466">3466</span> |
| <span id="3467">3467</span> |
| <span id="3468">3468</span> |
| <span id="3469">3469</span> |
| <span id="3470">3470</span> |
| <span id="3471">3471</span> |
| <span id="3472">3472</span> |
| <span id="3473">3473</span> |
| <span id="3474">3474</span> |
| <span id="3475">3475</span> |
| <span id="3476">3476</span> |
| <span id="3477">3477</span> |
| <span id="3478">3478</span> |
| <span id="3479">3479</span> |
| <span id="3480">3480</span> |
| <span id="3481">3481</span> |
| <span id="3482">3482</span> |
| <span id="3483">3483</span> |
| <span id="3484">3484</span> |
| <span id="3485">3485</span> |
| <span id="3486">3486</span> |
| <span id="3487">3487</span> |
| <span id="3488">3488</span> |
| <span id="3489">3489</span> |
| <span id="3490">3490</span> |
| <span id="3491">3491</span> |
| <span id="3492">3492</span> |
| <span id="3493">3493</span> |
| <span id="3494">3494</span> |
| <span id="3495">3495</span> |
| <span id="3496">3496</span> |
| <span id="3497">3497</span> |
| <span id="3498">3498</span> |
| <span id="3499">3499</span> |
| <span id="3500">3500</span> |
| </pre><pre class="rust"><code><span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::punctuated::Punctuated</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::reserved::Reserved</span>; |
| <span class="kw">use</span> <span class="ident">proc_macro2</span>::{<span class="ident">Span</span>, <span class="ident">TokenStream</span>}; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)]</span> |
| <span class="kw">use</span> <span class="ident">quote::IdentFragment</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)]</span> |
| <span class="kw">use</span> <span class="ident">std::fmt</span>::{<span class="self">self</span>, <span class="ident">Display</span>}; |
| <span class="kw">use</span> <span class="ident">std::hash</span>::{<span class="ident">Hash</span>, <span class="ident">Hasher</span>}; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)]</span> |
| <span class="kw">use</span> <span class="ident">std::mem</span>; |
| |
| <span class="macro">ast_enum_of_structs!</span> { |
| <span class="doccomment">/// A Rust expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or `"full"`</span> |
| <span class="doccomment">/// feature, but most of the variants are not available unless "full" is enabled.*</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Syntax tree enums</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This type is a syntax tree enum. In Syn this and other syntax tree enums</span> |
| <span class="doccomment">/// are designed to be traversed using the following rebinding idiom.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # use syn::Expr;</span> |
| <span class="doccomment">/// #</span> |
| <span class="doccomment">/// # fn example(expr: Expr) {</span> |
| <span class="doccomment">/// # const IGNORE: &str = stringify! {</span> |
| <span class="doccomment">/// let expr: Expr = /* ... */;</span> |
| <span class="doccomment">/// # };</span> |
| <span class="doccomment">/// match expr {</span> |
| <span class="doccomment">/// Expr::MethodCall(expr) => {</span> |
| <span class="doccomment">/// /* ... */</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// Expr::Cast(expr) => {</span> |
| <span class="doccomment">/// /* ... */</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// Expr::If(expr) => {</span> |
| <span class="doccomment">/// /* ... */</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// /* ... */</span> |
| <span class="doccomment">/// # _ => {}</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// We begin with a variable `expr` of type `Expr` that has no fields</span> |
| <span class="doccomment">/// (because it is an enum), and by matching on it and rebinding a variable</span> |
| <span class="doccomment">/// with the same name `expr` we effectively imbue our variable with all of</span> |
| <span class="doccomment">/// the data fields provided by the variant that it turned out to be. So for</span> |
| <span class="doccomment">/// example above if we ended up in the `MethodCall` case then we get to use</span> |
| <span class="doccomment">/// `expr.receiver`, `expr.args` etc; if we ended up in the `If` case we get</span> |
| <span class="doccomment">/// to use `expr.cond`, `expr.then_branch`, `expr.else_branch`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This approach avoids repeating the variant names twice on every line.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # use syn::{Expr, ExprMethodCall};</span> |
| <span class="doccomment">/// #</span> |
| <span class="doccomment">/// # fn example(expr: Expr) {</span> |
| <span class="doccomment">/// // Repetitive; recommend not doing this.</span> |
| <span class="doccomment">/// match expr {</span> |
| <span class="doccomment">/// Expr::MethodCall(ExprMethodCall { method, args, .. }) => {</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// # _ => {}</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// In general, the name to which a syntax tree enum variant is bound should</span> |
| <span class="doccomment">/// be a suitable name for the complete syntax tree enum type.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # use syn::{Expr, ExprField};</span> |
| <span class="doccomment">/// #</span> |
| <span class="doccomment">/// # fn example(discriminant: ExprField) {</span> |
| <span class="doccomment">/// // Binding is called `base` which is the name I would use if I were</span> |
| <span class="doccomment">/// // assigning `*discriminant.base` without an `if let`.</span> |
| <span class="doccomment">/// if let Expr::Tuple(base) = *discriminant.base {</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// A sign that you may not be choosing the right variable names is if you</span> |
| <span class="doccomment">/// see names getting repeated in your code, like accessing</span> |
| <span class="doccomment">/// `receiver.receiver` or `pat.pat` or `cond.cond`.</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Expr</span> { |
| <span class="doccomment">/// A slice literal expression: `[a, b, c, d]`.</span> |
| <span class="ident">Array</span>(<span class="ident">ExprArray</span>), |
| |
| <span class="doccomment">/// An assignment expression: `a = compute()`.</span> |
| <span class="ident">Assign</span>(<span class="ident">ExprAssign</span>), |
| |
| <span class="doccomment">/// A compound assignment expression: `counter += 1`.</span> |
| <span class="ident">AssignOp</span>(<span class="ident">ExprAssignOp</span>), |
| |
| <span class="doccomment">/// An async block: `async { ... }`.</span> |
| <span class="ident">Async</span>(<span class="ident">ExprAsync</span>), |
| |
| <span class="doccomment">/// An await expression: `fut.await`.</span> |
| <span class="ident">Await</span>(<span class="ident">ExprAwait</span>), |
| |
| <span class="doccomment">/// A binary operation: `a + b`, `a * b`.</span> |
| <span class="ident">Binary</span>(<span class="ident">ExprBinary</span>), |
| |
| <span class="doccomment">/// A blocked scope: `{ ... }`.</span> |
| <span class="ident">Block</span>(<span class="ident">ExprBlock</span>), |
| |
| <span class="doccomment">/// A box expression: `box f`.</span> |
| <span class="ident">Box</span>(<span class="ident">ExprBox</span>), |
| |
| <span class="doccomment">/// A `break`, with an optional label to break and an optional</span> |
| <span class="doccomment">/// expression.</span> |
| <span class="ident">Break</span>(<span class="ident">ExprBreak</span>), |
| |
| <span class="doccomment">/// A function call expression: `invoke(a, b)`.</span> |
| <span class="ident">Call</span>(<span class="ident">ExprCall</span>), |
| |
| <span class="doccomment">/// A cast expression: `foo as f64`.</span> |
| <span class="ident">Cast</span>(<span class="ident">ExprCast</span>), |
| |
| <span class="doccomment">/// A closure expression: `|a, b| a + b`.</span> |
| <span class="ident">Closure</span>(<span class="ident">ExprClosure</span>), |
| |
| <span class="doccomment">/// A `continue`, with an optional label.</span> |
| <span class="ident">Continue</span>(<span class="ident">ExprContinue</span>), |
| |
| <span class="doccomment">/// Access of a named struct field (`obj.k`) or unnamed tuple struct</span> |
| <span class="doccomment">/// field (`obj.0`).</span> |
| <span class="ident">Field</span>(<span class="ident">ExprField</span>), |
| |
| <span class="doccomment">/// A for loop: `for pat in expr { ... }`.</span> |
| <span class="ident">ForLoop</span>(<span class="ident">ExprForLoop</span>), |
| |
| <span class="doccomment">/// An expression contained within invisible delimiters.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This variant is important for faithfully representing the precedence</span> |
| <span class="doccomment">/// of expressions and is related to `None`-delimited spans in a</span> |
| <span class="doccomment">/// `TokenStream`.</span> |
| <span class="ident">Group</span>(<span class="ident">ExprGroup</span>), |
| |
| <span class="doccomment">/// An `if` expression with an optional `else` block: `if expr { ... }</span> |
| <span class="doccomment">/// else { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The `else` branch expression may only be an `If` or `Block`</span> |
| <span class="doccomment">/// expression, not any of the other types of expression.</span> |
| <span class="ident">If</span>(<span class="ident">ExprIf</span>), |
| |
| <span class="doccomment">/// A square bracketed indexing expression: `vector[2]`.</span> |
| <span class="ident">Index</span>(<span class="ident">ExprIndex</span>), |
| |
| <span class="doccomment">/// A `let` guard: `let Some(x) = opt`.</span> |
| <span class="ident">Let</span>(<span class="ident">ExprLet</span>), |
| |
| <span class="doccomment">/// A literal in place of an expression: `1`, `"foo"`.</span> |
| <span class="ident">Lit</span>(<span class="ident">ExprLit</span>), |
| |
| <span class="doccomment">/// Conditionless loop: `loop { ... }`.</span> |
| <span class="ident">Loop</span>(<span class="ident">ExprLoop</span>), |
| |
| <span class="doccomment">/// A macro invocation expression: `format!("{}", q)`.</span> |
| <span class="ident">Macro</span>(<span class="ident">ExprMacro</span>), |
| |
| <span class="doccomment">/// A `match` expression: `match n { Some(n) => {}, None => {} }`.</span> |
| <span class="ident">Match</span>(<span class="ident">ExprMatch</span>), |
| |
| <span class="doccomment">/// A method call expression: `x.foo::<T>(a, b)`.</span> |
| <span class="ident">MethodCall</span>(<span class="ident">ExprMethodCall</span>), |
| |
| <span class="doccomment">/// A parenthesized expression: `(a + b)`.</span> |
| <span class="ident">Paren</span>(<span class="ident">ExprParen</span>), |
| |
| <span class="doccomment">/// A path like `std::mem::replace` possibly containing generic</span> |
| <span class="doccomment">/// parameters and a qualified self-type.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// A plain identifier like `x` is a path of length 1.</span> |
| <span class="ident">Path</span>(<span class="ident">ExprPath</span>), |
| |
| <span class="doccomment">/// A range expression: `1..2`, `1..`, `..2`, `1..=2`, `..=2`.</span> |
| <span class="ident">Range</span>(<span class="ident">ExprRange</span>), |
| |
| <span class="doccomment">/// A referencing operation: `&a` or `&mut a`.</span> |
| <span class="ident">Reference</span>(<span class="ident">ExprReference</span>), |
| |
| <span class="doccomment">/// An array literal constructed from one repeated element: `[0u8; N]`.</span> |
| <span class="ident">Repeat</span>(<span class="ident">ExprRepeat</span>), |
| |
| <span class="doccomment">/// A `return`, with an optional value to be returned.</span> |
| <span class="ident">Return</span>(<span class="ident">ExprReturn</span>), |
| |
| <span class="doccomment">/// A struct literal expression: `Point { x: 1, y: 1 }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The `rest` provides the value of the remaining fields as in `S { a:</span> |
| <span class="doccomment">/// 1, b: 1, ..rest }`.</span> |
| <span class="ident">Struct</span>(<span class="ident">ExprStruct</span>), |
| |
| <span class="doccomment">/// A try-expression: `expr?`.</span> |
| <span class="ident">Try</span>(<span class="ident">ExprTry</span>), |
| |
| <span class="doccomment">/// A try block: `try { ... }`.</span> |
| <span class="ident">TryBlock</span>(<span class="ident">ExprTryBlock</span>), |
| |
| <span class="doccomment">/// A tuple expression: `(a, b, c, d)`.</span> |
| <span class="ident">Tuple</span>(<span class="ident">ExprTuple</span>), |
| |
| <span class="doccomment">/// A type ascription expression: `foo: f64`.</span> |
| <span class="ident">Type</span>(<span class="ident">ExprType</span>), |
| |
| <span class="doccomment">/// A unary operation: `!x`, `*x`.</span> |
| <span class="ident">Unary</span>(<span class="ident">ExprUnary</span>), |
| |
| <span class="doccomment">/// An unsafe block: `unsafe { ... }`.</span> |
| <span class="ident">Unsafe</span>(<span class="ident">ExprUnsafe</span>), |
| |
| <span class="doccomment">/// Tokens in expression position not interpreted by Syn.</span> |
| <span class="ident">Verbatim</span>(<span class="ident">TokenStream</span>), |
| |
| <span class="doccomment">/// A while loop: `while expr { ... }`.</span> |
| <span class="ident">While</span>(<span class="ident">ExprWhile</span>), |
| |
| <span class="doccomment">/// A yield expression: `yield expr`.</span> |
| <span class="ident">Yield</span>(<span class="ident">ExprYield</span>), |
| |
| <span class="comment">// The following is the only supported idiom for exhaustive matching of</span> |
| <span class="comment">// this enum.</span> |
| <span class="comment">//</span> |
| <span class="comment">// match expr {</span> |
| <span class="comment">// Expr::Array(e) => {...}</span> |
| <span class="comment">// Expr::Assign(e) => {...}</span> |
| <span class="comment">// ...</span> |
| <span class="comment">// Expr::Yield(e) => {...}</span> |
| <span class="comment">//</span> |
| <span class="comment">// #[cfg(test)]</span> |
| <span class="comment">// Expr::__TestExhaustive(_) => unimplemented!(),</span> |
| <span class="comment">// #[cfg(not(test))]</span> |
| <span class="comment">// _ => { /* some sane fallback */ }</span> |
| <span class="comment">// }</span> |
| <span class="comment">//</span> |
| <span class="comment">// This way we fail your tests but don't break your library when adding</span> |
| <span class="comment">// a variant. You will be notified by a test failure when a variant is</span> |
| <span class="comment">// added, so that you can add code to handle it, but your library will</span> |
| <span class="comment">// continue to compile and work for downstream users in the interim.</span> |
| <span class="comment">//</span> |
| <span class="comment">// Once `deny(reachable)` is available in rustc, Expr will be</span> |
| <span class="comment">// reimplemented as a non_exhaustive enum.</span> |
| <span class="comment">// https://github.com/rust-lang/rust/issues/44109#issuecomment-521781237</span> |
| <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span> |
| <span class="ident">__TestExhaustive</span>(<span class="ident"><span class="kw">crate</span>::private</span>), |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A slice literal expression: `[a, b, c, d]`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprArray</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">bracket_token</span>: <span class="ident">token::Bracket</span>, |
| <span class="kw">pub</span> <span class="ident">elems</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An assignment expression: `a = compute()`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprAssign</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">left</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">eq_token</span>: <span class="macro">Token!</span>[<span class="op">=</span>], |
| <span class="kw">pub</span> <span class="ident">right</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A compound assignment expression: `counter += 1`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprAssignOp</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">left</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">op</span>: <span class="ident">BinOp</span>, |
| <span class="kw">pub</span> <span class="ident">right</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An async block: `async { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprAsync</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">async_token</span>: <span class="macro">Token!</span>[<span class="kw">async</span>], |
| <span class="kw">pub</span> <span class="ident">capture</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">move</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">block</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An await expression: `fut.await`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprAwait</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">base</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.], |
| <span class="kw">pub</span> <span class="ident">await_token</span>: <span class="ident">token::Await</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A binary operation: `a + b`, `a * b`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprBinary</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">left</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">op</span>: <span class="ident">BinOp</span>, |
| <span class="kw">pub</span> <span class="ident">right</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A blocked scope: `{ ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprBlock</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">block</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A box expression: `box f`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprBox</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">box_token</span>: <span class="macro">Token!</span>[<span class="kw">box</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A `break`, with an optional label to break and an optional</span> |
| <span class="doccomment">/// expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprBreak</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">break_token</span>: <span class="macro">Token!</span>[<span class="kw">break</span>], |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Lifetime</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A function call expression: `invoke(a, b)`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprCall</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">func</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>, |
| <span class="kw">pub</span> <span class="ident">args</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A cast expression: `foo as f64`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprCast</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">as_token</span>: <span class="macro">Token!</span>[<span class="kw">as</span>], |
| <span class="kw">pub</span> <span class="ident">ty</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Type</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A closure expression: `|a, b| a + b`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprClosure</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">asyncness</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">async</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">movability</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">static</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">capture</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">move</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">or1_token</span>: <span class="macro">Token!</span>[<span class="op">|</span>], |
| <span class="kw">pub</span> <span class="ident">inputs</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Pat</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">or2_token</span>: <span class="macro">Token!</span>[<span class="op">|</span>], |
| <span class="kw">pub</span> <span class="ident">output</span>: <span class="ident">ReturnType</span>, |
| <span class="kw">pub</span> <span class="ident">body</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A `continue`, with an optional label.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprContinue</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">continue_token</span>: <span class="macro">Token!</span>[<span class="kw">continue</span>], |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Lifetime</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// Access of a named struct field (`obj.k`) or unnamed tuple struct</span> |
| <span class="doccomment">/// field (`obj.0`).</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprField</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">base</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.], |
| <span class="kw">pub</span> <span class="ident">member</span>: <span class="ident">Member</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A for loop: `for pat in expr { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprForLoop</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">for_token</span>: <span class="macro">Token!</span>[<span class="kw">for</span>], |
| <span class="kw">pub</span> <span class="ident">pat</span>: <span class="ident">Pat</span>, |
| <span class="kw">pub</span> <span class="ident">in_token</span>: <span class="macro">Token!</span>[<span class="kw">in</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">body</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An expression contained within invisible delimiters.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This variant is important for faithfully representing the precedence</span> |
| <span class="doccomment">/// of expressions and is related to `None`-delimited spans in a</span> |
| <span class="doccomment">/// `TokenStream`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprGroup</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">group_token</span>: <span class="ident">token::Group</span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An `if` expression with an optional `else` block: `if expr { ... }</span> |
| <span class="doccomment">/// else { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The `else` branch expression may only be an `If` or `Block`</span> |
| <span class="doccomment">/// expression, not any of the other types of expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprIf</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">if_token</span>: <span class="macro">Token!</span>[<span class="kw">if</span>], |
| <span class="kw">pub</span> <span class="ident">cond</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">then_branch</span>: <span class="ident">Block</span>, |
| <span class="kw">pub</span> <span class="ident">else_branch</span>: <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="macro">Token!</span>[<span class="kw">else</span>], <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>)<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A square bracketed indexing expression: `vector[2]`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprIndex</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">bracket_token</span>: <span class="ident">token::Bracket</span>, |
| <span class="kw">pub</span> <span class="ident">index</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A `let` guard: `let Some(x) = opt`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprLet</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">let_token</span>: <span class="macro">Token!</span>[<span class="kw">let</span>], |
| <span class="kw">pub</span> <span class="ident">pat</span>: <span class="ident">Pat</span>, |
| <span class="kw">pub</span> <span class="ident">eq_token</span>: <span class="macro">Token!</span>[<span class="op">=</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A literal in place of an expression: `1`, `"foo"`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprLit</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">lit</span>: <span class="ident">Lit</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// Conditionless loop: `loop { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprLoop</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">loop_token</span>: <span class="macro">Token!</span>[<span class="kw">loop</span>], |
| <span class="kw">pub</span> <span class="ident">body</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A macro invocation expression: `format!("{}", q)`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprMacro</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">mac</span>: <span class="ident">Macro</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A `match` expression: `match n { Some(n) => {}, None => {} }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprMatch</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">match_token</span>: <span class="macro">Token!</span>[<span class="kw">match</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">brace_token</span>: <span class="ident">token::Brace</span>, |
| <span class="kw">pub</span> <span class="ident">arms</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Arm</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A method call expression: `x.foo::<T>(a, b)`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprMethodCall</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">receiver</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.], |
| <span class="kw">pub</span> <span class="ident">method</span>: <span class="ident">Ident</span>, |
| <span class="kw">pub</span> <span class="ident">turbofish</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">MethodTurbofish</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>, |
| <span class="kw">pub</span> <span class="ident">args</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A parenthesized expression: `(a + b)`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprParen</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A path like `std::mem::replace` possibly containing generic</span> |
| <span class="doccomment">/// parameters and a qualified self-type.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// A plain identifier like `x` is a path of length 1.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprPath</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">qself</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">QSelf</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">path</span>: <span class="ident">Path</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A range expression: `1..2`, `1..`, `..2`, `1..=2`, `..=2`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprRange</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">from</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">limits</span>: <span class="ident">RangeLimits</span>, |
| <span class="kw">pub</span> <span class="ident">to</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A referencing operation: `&a` or `&mut a`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprReference</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">and_token</span>: <span class="macro">Token!</span>[<span class="kw-2">&</span>], |
| <span class="kw">pub</span> <span class="ident">raw</span>: <span class="ident">Reserved</span>, |
| <span class="kw">pub</span> <span class="ident">mutability</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw-2">mut</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An array literal constructed from one repeated element: `[0u8; N]`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprRepeat</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">bracket_token</span>: <span class="ident">token::Bracket</span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">semi_token</span>: <span class="macro">Token!</span>[;], |
| <span class="kw">pub</span> <span class="ident">len</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A `return`, with an optional value to be returned.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprReturn</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">return_token</span>: <span class="macro">Token!</span>[<span class="kw">return</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A struct literal expression: `Point { x: 1, y: 1 }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The `rest` provides the value of the remaining fields as in `S { a:</span> |
| <span class="doccomment">/// 1, b: 1, ..rest }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprStruct</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">path</span>: <span class="ident">Path</span>, |
| <span class="kw">pub</span> <span class="ident">brace_token</span>: <span class="ident">token::Brace</span>, |
| <span class="kw">pub</span> <span class="ident">fields</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">FieldValue</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">dot2_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[..]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">rest</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A try-expression: `expr?`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprTry</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">question_token</span>: <span class="macro">Token!</span>[<span class="question-mark">?</span>], |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A try block: `try { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprTryBlock</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">try_token</span>: <span class="macro">Token!</span>[<span class="kw">try</span>], |
| <span class="kw">pub</span> <span class="ident">block</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A tuple expression: `(a, b, c, d)`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprTuple</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">paren_token</span>: <span class="ident">token::Paren</span>, |
| <span class="kw">pub</span> <span class="ident">elems</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A type ascription expression: `foo: f64`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprType</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">colon_token</span>: <span class="macro">Token!</span>[:], |
| <span class="kw">pub</span> <span class="ident">ty</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Type</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A unary operation: `!x`, `*x`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or</span> |
| <span class="doccomment">/// `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprUnary</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">op</span>: <span class="ident">UnOp</span>, |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An unsafe block: `unsafe { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprUnsafe</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">unsafe_token</span>: <span class="macro">Token!</span>[<span class="kw">unsafe</span>], |
| <span class="kw">pub</span> <span class="ident">block</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A while loop: `while expr { ... }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprWhile</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">while_token</span>: <span class="macro">Token!</span>[<span class="kw">while</span>], |
| <span class="kw">pub</span> <span class="ident">cond</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">body</span>: <span class="ident">Block</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A yield expression: `yield expr`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ExprYield</span> #<span class="ident">full</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">yield_token</span>: <span class="macro">Token!</span>[<span class="kw">yield</span>], |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span><span class="op">></span>, |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Expr</span> { |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">replace_attrs</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">new</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>) -> <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span> { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">Expr::Box</span>(<span class="ident">ExprBox</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Array</span>(<span class="ident">ExprArray</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Call</span>(<span class="ident">ExprCall</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::MethodCall</span>(<span class="ident">ExprMethodCall</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Tuple</span>(<span class="ident">ExprTuple</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Binary</span>(<span class="ident">ExprBinary</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Unary</span>(<span class="ident">ExprUnary</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Lit</span>(<span class="ident">ExprLit</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Cast</span>(<span class="ident">ExprCast</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Type</span>(<span class="ident">ExprType</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Let</span>(<span class="ident">ExprLet</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::If</span>(<span class="ident">ExprIf</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::While</span>(<span class="ident">ExprWhile</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::ForLoop</span>(<span class="ident">ExprForLoop</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Loop</span>(<span class="ident">ExprLoop</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Match</span>(<span class="ident">ExprMatch</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Closure</span>(<span class="ident">ExprClosure</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Unsafe</span>(<span class="ident">ExprUnsafe</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Block</span>(<span class="ident">ExprBlock</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Assign</span>(<span class="ident">ExprAssign</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::AssignOp</span>(<span class="ident">ExprAssignOp</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Field</span>(<span class="ident">ExprField</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Index</span>(<span class="ident">ExprIndex</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Range</span>(<span class="ident">ExprRange</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Path</span>(<span class="ident">ExprPath</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Reference</span>(<span class="ident">ExprReference</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Break</span>(<span class="ident">ExprBreak</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Continue</span>(<span class="ident">ExprContinue</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Return</span>(<span class="ident">ExprReturn</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Macro</span>(<span class="ident">ExprMacro</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Struct</span>(<span class="ident">ExprStruct</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Repeat</span>(<span class="ident">ExprRepeat</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Paren</span>(<span class="ident">ExprParen</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Group</span>(<span class="ident">ExprGroup</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Try</span>(<span class="ident">ExprTry</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Async</span>(<span class="ident">ExprAsync</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Await</span>(<span class="ident">ExprAwait</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::TryBlock</span>(<span class="ident">ExprTryBlock</span> { <span class="ident">attrs</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Yield</span>(<span class="ident">ExprYield</span> { <span class="ident">attrs</span>, .. }) => <span class="ident">mem::replace</span>(<span class="ident">attrs</span>, <span class="ident">new</span>), |
| <span class="ident">Expr::Verbatim</span>(<span class="kw">_</span>) => <span class="ident">Vec::new</span>(), |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> |
| <span class="ident">Expr::__TestExhaustive</span>(<span class="kw">_</span>) => <span class="macro">unimplemented!</span>(), |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">test</span>))]</span> |
| <span class="kw">_</span> => <span class="macro">unreachable!</span>(), |
| } |
| } |
| } |
| |
| <span class="macro">ast_enum!</span> { |
| <span class="doccomment">/// A struct or tuple struct field accessed in a struct literal or field</span> |
| <span class="doccomment">/// expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or `"full"`</span> |
| <span class="doccomment">/// feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">Member</span> { |
| <span class="doccomment">/// A named field like `self.x`.</span> |
| <span class="ident">Named</span>(<span class="ident">Ident</span>), |
| <span class="doccomment">/// An unnamed field like `self.0`.</span> |
| <span class="ident">Unnamed</span>(<span class="ident">Index</span>), |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">Ident</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">ident</span>: <span class="ident">Ident</span>) -> <span class="ident">Member</span> { |
| <span class="ident">Member::Named</span>(<span class="ident">ident</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">Index</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">index</span>: <span class="ident">Index</span>) -> <span class="ident">Member</span> { |
| <span class="ident">Member::Unnamed</span>(<span class="ident">index</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">index</span>: <span class="ident">usize</span>) -> <span class="ident">Member</span> { |
| <span class="ident">Member::Unnamed</span>(<span class="ident">Index::from</span>(<span class="ident">index</span>)) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Eq</span> <span class="kw">for</span> <span class="ident">Member</span> {} |
| |
| <span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="kw">match</span> (<span class="self">self</span>, <span class="ident">other</span>) { |
| (<span class="ident">Member::Named</span>(<span class="ident">this</span>), <span class="ident">Member::Named</span>(<span class="ident">other</span>)) => <span class="ident">this</span> <span class="op">==</span> <span class="ident">other</span>, |
| (<span class="ident">Member::Unnamed</span>(<span class="ident">this</span>), <span class="ident">Member::Unnamed</span>(<span class="ident">other</span>)) => <span class="ident">this</span> <span class="op">==</span> <span class="ident">other</span>, |
| <span class="kw">_</span> => <span class="bool-val">false</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Hash</span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">hash</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">Hasher</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">state</span>: <span class="kw-2">&mut</span> <span class="ident">H</span>) { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">Member::Named</span>(<span class="ident">m</span>) => <span class="ident">m</span>.<span class="ident">hash</span>(<span class="ident">state</span>), |
| <span class="ident">Member::Unnamed</span>(<span class="ident">m</span>) => <span class="ident">m</span>.<span class="ident">hash</span>(<span class="ident">state</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)]</span> |
| <span class="kw">impl</span> <span class="ident">IdentFragment</span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">formatter</span>: <span class="kw-2">&mut</span> <span class="ident">fmt::Formatter</span>) -> <span class="ident">fmt::Result</span> { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">Member::Named</span>(<span class="ident">m</span>) => <span class="ident">Display::fmt</span>(<span class="ident">m</span>, <span class="ident">formatter</span>), |
| <span class="ident">Member::Unnamed</span>(<span class="ident">m</span>) => <span class="ident">Display::fmt</span>(<span class="kw-2">&</span><span class="ident">m</span>.<span class="ident">index</span>, <span class="ident">formatter</span>), |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">span</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Span</span><span class="op">></span> { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">Member::Named</span>(<span class="ident">m</span>) => <span class="prelude-val">Some</span>(<span class="ident">m</span>.<span class="ident">span</span>()), |
| <span class="ident">Member::Unnamed</span>(<span class="ident">m</span>) => <span class="prelude-val">Some</span>(<span class="ident">m</span>.<span class="ident">span</span>), |
| } |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// The index of an unnamed tuple struct field.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"derive"` or `"full"`</span> |
| <span class="doccomment">/// feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"derive"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Index</span> { |
| <span class="kw">pub</span> <span class="ident">index</span>: <span class="ident">u32</span>, |
| <span class="kw">pub</span> <span class="ident">span</span>: <span class="ident">Span</span>, |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">index</span>: <span class="ident">usize</span>) -> <span class="ident">Index</span> { |
| <span class="macro">assert!</span>(<span class="ident">index</span> <span class="op"><</span> <span class="ident">u32::max_value</span>() <span class="kw">as</span> <span class="ident">usize</span>); |
| <span class="ident">Index</span> { |
| <span class="ident">index</span>: <span class="ident">index</span> <span class="kw">as</span> <span class="ident">u32</span>, |
| <span class="ident">span</span>: <span class="ident">Span::call_site</span>(), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Eq</span> <span class="kw">for</span> <span class="ident">Index</span> {} |
| |
| <span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">index</span> <span class="op">==</span> <span class="ident">other</span>.<span class="ident">index</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Hash</span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">hash</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">Hasher</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">state</span>: <span class="kw-2">&mut</span> <span class="ident">H</span>) { |
| <span class="self">self</span>.<span class="ident">index</span>.<span class="ident">hash</span>(<span class="ident">state</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)]</span> |
| <span class="kw">impl</span> <span class="ident">IdentFragment</span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">formatter</span>: <span class="kw-2">&mut</span> <span class="ident">fmt::Formatter</span>) -> <span class="ident">fmt::Result</span> { |
| <span class="ident">Display::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">index</span>, <span class="ident">formatter</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">span</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Span</span><span class="op">></span> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.<span class="ident">span</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// The `::<>` explicit type parameters passed to a method call:</span> |
| <span class="doccomment">/// `parse::<u64>()`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">MethodTurbofish</span> { |
| <span class="kw">pub</span> <span class="ident">colon2_token</span>: <span class="macro">Token!</span>[::], |
| <span class="kw">pub</span> <span class="ident">lt_token</span>: <span class="macro">Token!</span>[<span class="op"><</span>], |
| <span class="kw">pub</span> <span class="ident">args</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">GenericMethodArgument</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">gt_token</span>: <span class="macro">Token!</span>[<span class="op">></span>], |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_enum!</span> { |
| <span class="doccomment">/// An individual generic argument to a method, like `T`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">GenericMethodArgument</span> { |
| <span class="doccomment">/// A type argument.</span> |
| <span class="ident">Type</span>(<span class="ident">Type</span>), |
| <span class="doccomment">/// A const expression. Must be inside of a block.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// NOTE: Identity expressions are represented as Type arguments, as</span> |
| <span class="doccomment">/// they are indistinguishable syntactically.</span> |
| <span class="ident">Const</span>(<span class="ident">Expr</span>), |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A field-value pair in a struct literal.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">FieldValue</span> { |
| <span class="doccomment">/// Attributes tagged on the field.</span> |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| |
| <span class="doccomment">/// Name or index of the field.</span> |
| <span class="kw">pub</span> <span class="ident">member</span>: <span class="ident">Member</span>, |
| |
| <span class="doccomment">/// The colon in `Struct { x: x }`. If written in shorthand like</span> |
| <span class="doccomment">/// `Struct { x }`, there is no colon.</span> |
| <span class="kw">pub</span> <span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[:]<span class="op">></span>, |
| |
| <span class="doccomment">/// Value of the field.</span> |
| <span class="kw">pub</span> <span class="ident">expr</span>: <span class="ident">Expr</span>, |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A lifetime labeling a `for`, `while`, or `loop`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Label</span> { |
| <span class="kw">pub</span> <span class="ident">name</span>: <span class="ident">Lifetime</span>, |
| <span class="kw">pub</span> <span class="ident">colon_token</span>: <span class="macro">Token!</span>[:], |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// One arm of a `match` expression: `0...10 => { return true; }`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// As in:</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # fn f() -> bool {</span> |
| <span class="doccomment">/// # let n = 0;</span> |
| <span class="doccomment">/// match n {</span> |
| <span class="doccomment">/// 0...10 => {</span> |
| <span class="doccomment">/// return true;</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// // ...</span> |
| <span class="doccomment">/// # _ => {}</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// # false</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Arm</span> { |
| <span class="kw">pub</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">pat</span>: <span class="ident">Pat</span>, |
| <span class="kw">pub</span> <span class="ident">guard</span>: <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="macro">Token!</span>[<span class="kw">if</span>], <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>)<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">fat_arrow_token</span>: <span class="macro">Token!</span>[=>], |
| <span class="kw">pub</span> <span class="ident">body</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">comma</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="macro">ast_enum!</span> { |
| <span class="doccomment">/// Limit types of a range, inclusive or exclusive.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// *This type is available only if Syn is built with the `"full"` feature.*</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)))]</span> |
| <span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">RangeLimits</span> { |
| <span class="doccomment">/// Inclusive at the beginning, exclusive at the end.</span> |
| <span class="ident">HalfOpen</span>(<span class="macro">Token!</span>[..]), |
| <span class="doccomment">/// Inclusive at the beginning and end.</span> |
| <span class="ident">Closed</span>(<span class="macro">Token!</span>[..<span class="op">=</span>]), |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>))]</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">requires_terminator</span>(<span class="ident">expr</span>: <span class="kw-2">&</span><span class="ident">Expr</span>) -> <span class="ident">bool</span> { |
| <span class="comment">// see https://github.com/rust-lang/rust/blob/2679c38fc/src/librustc_ast/util/classify.rs#L7-L25</span> |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="ident">expr</span> { |
| <span class="ident">Expr::Unsafe</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::Block</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::If</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::Match</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::While</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::Loop</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::ForLoop</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::Async</span>(..) |
| <span class="op">|</span> <span class="ident">Expr::TryBlock</span>(..) => <span class="bool-val">false</span>, |
| <span class="kw">_</span> => <span class="bool-val">true</span>, |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod</span> <span class="ident">parsing</span> { |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>, <span class="prelude-ty">Result</span>}; |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::path</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">use</span> <span class="ident">proc_macro2::TokenTree</span>; |
| <span class="kw">use</span> <span class="ident">std::cmp::Ordering</span>; |
| |
| <span class="macro">crate::custom_keyword!</span>(<span class="ident">raw</span>); |
| |
| <span class="comment">// When we're parsing expressions which occur before blocks, like in an if</span> |
| <span class="comment">// statement's condition, we cannot parse a struct literal.</span> |
| <span class="comment">//</span> |
| <span class="comment">// Struct literals are ambiguous in certain positions</span> |
| <span class="comment">// https://github.com/rust-lang/rfcs/pull/92</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">AllowStruct</span>(<span class="ident">bool</span>); |
| |
| <span class="kw">enum</span> <span class="ident">Precedence</span> { |
| <span class="ident">Any</span>, |
| <span class="ident">Assign</span>, |
| <span class="ident">Range</span>, |
| <span class="ident">Or</span>, |
| <span class="ident">And</span>, |
| <span class="ident">Compare</span>, |
| <span class="ident">BitOr</span>, |
| <span class="ident">BitXor</span>, |
| <span class="ident">BitAnd</span>, |
| <span class="ident">Shift</span>, |
| <span class="ident">Arithmetic</span>, |
| <span class="ident">Term</span>, |
| <span class="ident">Cast</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Precedence</span> { |
| <span class="kw">fn</span> <span class="ident">of</span>(<span class="ident">op</span>: <span class="kw-2">&</span><span class="ident">BinOp</span>) -> <span class="self">Self</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="ident">op</span> { |
| <span class="ident">BinOp::Add</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">BinOp::Sub</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Arithmetic</span>, |
| <span class="ident">BinOp::Mul</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">BinOp::Div</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">BinOp::Rem</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Term</span>, |
| <span class="ident">BinOp::And</span>(<span class="kw">_</span>) => <span class="ident">Precedence::And</span>, |
| <span class="ident">BinOp::Or</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Or</span>, |
| <span class="ident">BinOp::BitXor</span>(<span class="kw">_</span>) => <span class="ident">Precedence::BitXor</span>, |
| <span class="ident">BinOp::BitAnd</span>(<span class="kw">_</span>) => <span class="ident">Precedence::BitAnd</span>, |
| <span class="ident">BinOp::BitOr</span>(<span class="kw">_</span>) => <span class="ident">Precedence::BitOr</span>, |
| <span class="ident">BinOp::Shl</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">BinOp::Shr</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Shift</span>, |
| <span class="ident">BinOp::Eq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::Lt</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::Le</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::Ne</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::Ge</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::Gt</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Compare</span>, |
| <span class="ident">BinOp::AddEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::SubEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::MulEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::DivEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::RemEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::BitXorEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::BitAndEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::BitOrEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::ShlEq</span>(<span class="kw">_</span>) |
| <span class="op">|</span> <span class="ident">BinOp::ShrEq</span>(<span class="kw">_</span>) => <span class="ident">Precedence::Assign</span>, |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Expr</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>)) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Expr</span> { |
| <span class="doccomment">/// An alternative to the primary `Expr::parse` parser (from the</span> |
| <span class="doccomment">/// [`Parse`] trait) for ambiguous syntactic positions in which a</span> |
| <span class="doccomment">/// trailing brace should not be taken as part of the expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Rust grammar has an ambiguity where braces sometimes turn a path</span> |
| <span class="doccomment">/// expression into a struct initialization and sometimes do not. In the</span> |
| <span class="doccomment">/// following code, the expression `S {}` is one expression. Presumably</span> |
| <span class="doccomment">/// there is an empty struct `struct S {}` defined somewhere which it is</span> |
| <span class="doccomment">/// instantiating.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # struct S;</span> |
| <span class="doccomment">/// # impl std::ops::Deref for S {</span> |
| <span class="doccomment">/// # type Target = bool;</span> |
| <span class="doccomment">/// # fn deref(&self) -> &Self::Target {</span> |
| <span class="doccomment">/// # &true</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// let _ = *S {};</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // parsed by rustc as: `*(S {})`</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// We would want to parse the above using `Expr::parse` after the `=`</span> |
| <span class="doccomment">/// token.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// But in the following, `S {}` is *not* a struct init expression.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # const S: &bool = &true;</span> |
| <span class="doccomment">/// if *S {} {}</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // parsed by rustc as:</span> |
| <span class="doccomment">/// //</span> |
| <span class="doccomment">/// // if (*S) {</span> |
| <span class="doccomment">/// // /* empty block */</span> |
| <span class="doccomment">/// // }</span> |
| <span class="doccomment">/// // {</span> |
| <span class="doccomment">/// // /* another empty block */</span> |
| <span class="doccomment">/// // }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For that reason we would want to parse if-conditions using</span> |
| <span class="doccomment">/// `Expr::parse_without_eager_brace` after the `if` token. Same for</span> |
| <span class="doccomment">/// similar syntactic positions such as the condition expr after a</span> |
| <span class="doccomment">/// `while` token or the expr at the top of a `match`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The Rust grammar's choices around which way this ambiguity is</span> |
| <span class="doccomment">/// resolved at various syntactic positions is fairly arbitrary. Really</span> |
| <span class="doccomment">/// either parse behavior could work in most positions, and language</span> |
| <span class="doccomment">/// designers just decide each case based on which is more likely to be</span> |
| <span class="doccomment">/// what the programmer had in mind most of the time.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// # struct S;</span> |
| <span class="doccomment">/// # fn doc() -> S {</span> |
| <span class="doccomment">/// if return S {} {}</span> |
| <span class="doccomment">/// # unreachable!()</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // parsed by rustc as:</span> |
| <span class="doccomment">/// //</span> |
| <span class="doccomment">/// // if (return (S {})) {</span> |
| <span class="doccomment">/// // }</span> |
| <span class="doccomment">/// //</span> |
| <span class="doccomment">/// // but could equally well have been this other arbitrary choice:</span> |
| <span class="doccomment">/// //</span> |
| <span class="doccomment">/// // if (return S) {</span> |
| <span class="doccomment">/// // }</span> |
| <span class="doccomment">/// // {}</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Note the grammar ambiguity on trailing braces is distinct from</span> |
| <span class="doccomment">/// precedence and is not captured by assigning a precedence level to</span> |
| <span class="doccomment">/// the braced struct init expr in relation to other operators. This can</span> |
| <span class="doccomment">/// be illustrated by `return 0..S {}` vs `match 0..S {}`. The former</span> |
| <span class="doccomment">/// parses as `return (0..(S {}))` implying tighter precedence for</span> |
| <span class="doccomment">/// struct init than `..`, while the latter parses as `match (0..S) {}`</span> |
| <span class="doccomment">/// implying tighter precedence for `..` than struct init, a</span> |
| <span class="doccomment">/// contradiction.</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>))))]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parse_without_eager_brace</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">AllowStruct</span>(<span class="bool-val">false</span>)) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Copy</span> <span class="kw">for</span> <span class="ident">AllowStruct</span> {} |
| |
| <span class="kw">impl</span> <span class="ident">Clone</span> <span class="kw">for</span> <span class="ident">AllowStruct</span> { |
| <span class="kw">fn</span> <span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span> { |
| <span class="kw-2">*</span><span class="self">self</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Copy</span> <span class="kw">for</span> <span class="ident">Precedence</span> {} |
| |
| <span class="kw">impl</span> <span class="ident">Clone</span> <span class="kw">for</span> <span class="ident">Precedence</span> { |
| <span class="kw">fn</span> <span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span> { |
| <span class="kw-2">*</span><span class="self">self</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">Precedence</span> { |
| <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="self">Self</span>) -> <span class="ident">bool</span> { |
| <span class="kw-2">*</span><span class="self">self</span> <span class="kw">as</span> <span class="ident">u8</span> <span class="op">==</span> <span class="kw-2">*</span><span class="ident">other</span> <span class="kw">as</span> <span class="ident">u8</span> |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">PartialOrd</span> <span class="kw">for</span> <span class="ident">Precedence</span> { |
| <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="self">Self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Ordering</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">this</span> <span class="op">=</span> <span class="kw-2">*</span><span class="self">self</span> <span class="kw">as</span> <span class="ident">u8</span>; |
| <span class="kw">let</span> <span class="ident">other</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">other</span> <span class="kw">as</span> <span class="ident">u8</span>; |
| <span class="prelude-val">Some</span>(<span class="ident">this</span>.<span class="ident">cmp</span>(<span class="kw-2">&</span><span class="ident">other</span>)) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">parse_expr</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="kw-2">mut</span> <span class="ident">lhs</span>: <span class="ident">Expr</span>, |
| <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>, |
| <span class="ident">base</span>: <span class="ident">Precedence</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span> |
| .<span class="ident">fork</span>() |
| .<span class="ident">parse</span>::<span class="op"><</span><span class="ident">BinOp</span><span class="op">></span>() |
| .<span class="ident">ok</span>() |
| .<span class="ident">map_or</span>(<span class="bool-val">false</span>, <span class="op">|</span><span class="ident">op</span><span class="op">|</span> <span class="ident">Precedence::of</span>(<span class="kw-2">&</span><span class="ident">op</span>) <span class="op">></span><span class="op">=</span> <span class="ident">base</span>) |
| { |
| <span class="kw">let</span> <span class="ident">op</span>: <span class="ident">BinOp</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">precedence</span> <span class="op">=</span> <span class="ident">Precedence::of</span>(<span class="kw-2">&</span><span class="ident">op</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="ident">peek_precedence</span>(<span class="ident">input</span>); |
| <span class="kw">if</span> <span class="ident">next</span> <span class="op">></span> <span class="ident">precedence</span> <span class="op">|</span><span class="op">|</span> <span class="ident">next</span> <span class="op">==</span> <span class="ident">precedence</span> <span class="op">&&</span> <span class="ident">precedence</span> <span class="op">==</span> <span class="ident">Precedence::Assign</span> { |
| <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">rhs</span>, <span class="ident">allow_struct</span>, <span class="ident">next</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">precedence</span> <span class="op">==</span> <span class="ident">Precedence::Assign</span> { |
| <span class="ident">Expr::AssignOp</span>(<span class="ident">ExprAssignOp</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">left</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">op</span>, |
| <span class="ident">right</span>: <span class="ident">Box::new</span>(<span class="ident">rhs</span>), |
| }) |
| } <span class="kw">else</span> { |
| <span class="ident">Expr::Binary</span>(<span class="ident">ExprBinary</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">left</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">op</span>, |
| <span class="ident">right</span>: <span class="ident">Box::new</span>(<span class="ident">rhs</span>), |
| }) |
| }; |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Precedence::Assign</span> <span class="op">></span><span class="op">=</span> <span class="ident">base</span> |
| <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">=</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">==</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[=>]) |
| { |
| <span class="kw">let</span> <span class="ident">eq_token</span>: <span class="macro">Token!</span>[<span class="op">=</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="ident">peek_precedence</span>(<span class="ident">input</span>); |
| <span class="kw">if</span> <span class="ident">next</span> <span class="op">></span><span class="op">=</span> <span class="ident">Precedence::Assign</span> { |
| <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">rhs</span>, <span class="ident">allow_struct</span>, <span class="ident">next</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Assign</span>(<span class="ident">ExprAssign</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">left</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">eq_token</span>, |
| <span class="ident">right</span>: <span class="ident">Box::new</span>(<span class="ident">rhs</span>), |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Precedence::Range</span> <span class="op">></span><span class="op">=</span> <span class="ident">base</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) { |
| <span class="kw">let</span> <span class="ident">limits</span>: <span class="ident">RangeLimits</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">rhs</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">is_empty</span>() |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[.]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) |
| <span class="op">|</span><span class="op">|</span> <span class="op">!</span><span class="ident">allow_struct</span>.<span class="number">0</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) |
| { |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="ident">peek_precedence</span>(<span class="ident">input</span>); |
| <span class="kw">if</span> <span class="ident">next</span> <span class="op">></span> <span class="ident">Precedence::Range</span> { |
| <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">rhs</span>, <span class="ident">allow_struct</span>, <span class="ident">next</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Some</span>(<span class="ident">rhs</span>) |
| }; |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Range</span>(<span class="ident">ExprRange</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">from</span>: <span class="prelude-val">Some</span>(<span class="ident">Box::new</span>(<span class="ident">lhs</span>)), |
| <span class="ident">limits</span>, |
| <span class="ident">to</span>: <span class="ident">rhs</span>.<span class="ident">map</span>(<span class="ident">Box::new</span>), |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Precedence::Cast</span> <span class="op">></span><span class="op">=</span> <span class="ident">base</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">as</span>]) { |
| <span class="kw">let</span> <span class="ident">as_token</span>: <span class="macro">Token!</span>[<span class="kw">as</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">ty</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Type::without_plus</span>)<span class="question-mark">?</span>; |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Cast</span>(<span class="ident">ExprCast</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">as_token</span>, |
| <span class="ident">ty</span>: <span class="ident">Box::new</span>(<span class="ident">ty</span>), |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Precedence::Cast</span> <span class="op">></span><span class="op">=</span> <span class="ident">base</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[:]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) { |
| <span class="kw">let</span> <span class="ident">colon_token</span>: <span class="macro">Token!</span>[:] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">ty</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Type::without_plus</span>)<span class="question-mark">?</span>; |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Type</span>(<span class="ident">ExprType</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">colon_token</span>, |
| <span class="ident">ty</span>: <span class="ident">Box::new</span>(<span class="ident">ty</span>), |
| }); |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">lhs</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">parse_expr</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="kw-2">mut</span> <span class="ident">lhs</span>: <span class="ident">Expr</span>, |
| <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>, |
| <span class="ident">base</span>: <span class="ident">Precedence</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span> |
| .<span class="ident">fork</span>() |
| .<span class="ident">parse</span>::<span class="op"><</span><span class="ident">BinOp</span><span class="op">></span>() |
| .<span class="ident">ok</span>() |
| .<span class="ident">map_or</span>(<span class="bool-val">false</span>, <span class="op">|</span><span class="ident">op</span><span class="op">|</span> <span class="ident">Precedence::of</span>(<span class="kw-2">&</span><span class="ident">op</span>) <span class="op">></span><span class="op">=</span> <span class="ident">base</span>) |
| { |
| <span class="kw">let</span> <span class="ident">op</span>: <span class="ident">BinOp</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">precedence</span> <span class="op">=</span> <span class="ident">Precedence::of</span>(<span class="kw-2">&</span><span class="ident">op</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">let</span> <span class="ident">next</span> <span class="op">=</span> <span class="ident">peek_precedence</span>(<span class="ident">input</span>); |
| <span class="kw">if</span> <span class="ident">next</span> <span class="op">></span> <span class="ident">precedence</span> <span class="op">|</span><span class="op">|</span> <span class="ident">next</span> <span class="op">==</span> <span class="ident">precedence</span> <span class="op">&&</span> <span class="ident">precedence</span> <span class="op">==</span> <span class="ident">Precedence::Assign</span> { |
| <span class="ident">rhs</span> <span class="op">=</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">rhs</span>, <span class="ident">allow_struct</span>, <span class="ident">next</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Binary</span>(<span class="ident">ExprBinary</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">left</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">op</span>, |
| <span class="ident">right</span>: <span class="ident">Box::new</span>(<span class="ident">rhs</span>), |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Precedence::Cast</span> <span class="op">></span><span class="op">=</span> <span class="ident">base</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">as</span>]) { |
| <span class="kw">let</span> <span class="ident">as_token</span>: <span class="macro">Token!</span>[<span class="kw">as</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">ty</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Type::without_plus</span>)<span class="question-mark">?</span>; |
| <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">Expr::Cast</span>(<span class="ident">ExprCast</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">lhs</span>), |
| <span class="ident">as_token</span>, |
| <span class="ident">ty</span>: <span class="ident">Box::new</span>(<span class="ident">ty</span>), |
| }); |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">lhs</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">peek_precedence</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="ident">Precedence</span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">op</span>) <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>().<span class="ident">parse</span>() { |
| <span class="ident">Precedence::of</span>(<span class="kw-2">&</span><span class="ident">op</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">=</span>]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[=>]) { |
| <span class="ident">Precedence::Assign</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) { |
| <span class="ident">Precedence::Range</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">as</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="macro">cfg!</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[:]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) |
| { |
| <span class="ident">Precedence::Cast</span> |
| } <span class="kw">else</span> { |
| <span class="ident">Precedence::Any</span> |
| } |
| } |
| |
| <span class="comment">// Parse an arbitrary expression.</span> |
| <span class="kw">fn</span> <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">lhs</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">lhs</span>, <span class="ident">allow_struct</span>, <span class="ident">Precedence::Any</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_attrs</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Group</span>) { |
| <span class="kw">let</span> <span class="ident">ahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>(); |
| <span class="kw">let</span> <span class="ident">group</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::group::parse_group</span>(<span class="kw-2">&</span><span class="ident">ahead</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[#]) <span class="op">|</span><span class="op">|</span> <span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="op">!</span>]) { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">attr</span> <span class="op">=</span> <span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">attr::parsing::single_parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| <span class="ident">attrs</span>.<span class="ident">push</span>(<span class="ident">attr</span>); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[#]) { |
| <span class="ident">attrs</span>.<span class="ident">push</span>(<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">attr::parsing::single_parse_outer</span>)<span class="question-mark">?</span>); |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">attrs</span>) |
| } |
| |
| <span class="comment">// <UnOp> <trailer></span> |
| <span class="comment">// & <trailer></span> |
| <span class="comment">// &mut <trailer></span> |
| <span class="comment">// box <trailer></span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">begin</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>(); |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw-2">&</span>]) { |
| <span class="kw">let</span> <span class="ident">and_token</span>: <span class="macro">Token!</span>[<span class="kw-2">&</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">raw</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">raw</span><span class="op">></span> <span class="op">=</span> |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">raw</span>) <span class="op">&&</span> (<span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="kw-2">mut</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="kw">const</span>])) { |
| <span class="prelude-val">Some</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| }; |
| <span class="kw">let</span> <span class="ident">mutability</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw-2">mut</span>]<span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">raw</span>.<span class="ident">is_some</span>() <span class="op">&&</span> <span class="ident">mutability</span>.<span class="ident">is_none</span>() { |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="kw">const</span>]<span class="op">></span>()<span class="question-mark">?</span>; |
| } |
| <span class="kw">let</span> <span class="ident">expr</span> <span class="op">=</span> <span class="ident">Box::new</span>(<span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>); |
| <span class="kw">if</span> <span class="ident">raw</span>.<span class="ident">is_some</span>() { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Verbatim</span>(<span class="ident">verbatim::between</span>(<span class="ident">begin</span>, <span class="ident">input</span>))) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Reference</span>(<span class="ident">ExprReference</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">and_token</span>, |
| <span class="ident">raw</span>: <span class="ident">Reserved::default</span>(), |
| <span class="ident">mutability</span>, |
| <span class="ident">expr</span>, |
| })) |
| } |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">box</span>]) { |
| <span class="ident">expr_box</span>(<span class="ident">input</span>, <span class="ident">attrs</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Box</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw-2">*</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">!</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">-</span>]) { |
| <span class="ident">expr_unary</span>(<span class="ident">input</span>, <span class="ident">attrs</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Unary</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">trailer_expr</span>(<span class="ident">attrs</span>, <span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw-2">*</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">!</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">-</span>]) { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Unary</span>(<span class="ident">ExprUnary</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">op</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>), |
| })) |
| } <span class="kw">else</span> { |
| <span class="ident">trailer_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="comment">// <atom> (..<args>) ...</span> |
| <span class="comment">// <atom> . <ident> (..<args>) ...</span> |
| <span class="comment">// <atom> . <ident> ...</span> |
| <span class="comment">// <atom> . <lit> ...</span> |
| <span class="comment">// <atom> [ <expr> ] ...</span> |
| <span class="comment">// <atom> ? ...</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">trailer_expr</span>( |
| <span class="kw-2">mut</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">atom</span> <span class="op">=</span> <span class="ident">atom_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">trailer_helper</span>(<span class="ident">input</span>, <span class="ident">atom</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">inner_attrs</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">replace_attrs</span>(<span class="ident">Vec::new</span>()); |
| <span class="ident">attrs</span>.<span class="ident">extend</span>(<span class="ident">inner_attrs</span>); |
| <span class="ident">e</span>.<span class="ident">replace_attrs</span>(<span class="ident">attrs</span>); |
| <span class="prelude-val">Ok</span>(<span class="ident">e</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">trailer_helper</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="kw-2">mut</span> <span class="ident">e</span>: <span class="ident">Expr</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Call</span>(<span class="ident">ExprCall</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">func</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">args</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Expr::parse</span>)<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[.]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) |
| <span class="op">&&</span> <span class="kw">match</span> <span class="ident">e</span> { |
| <span class="ident">Expr::Range</span>(<span class="kw">_</span>) => <span class="bool-val">false</span>, |
| <span class="kw">_</span> => <span class="bool-val">true</span>, |
| } |
| { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">await_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">token::Await</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">await_token</span>) <span class="op">=</span> <span class="ident">await_token</span> { |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Await</span>(<span class="ident">ExprAwait</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">base</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">dot_token</span>, |
| <span class="ident">await_token</span>, |
| }); |
| <span class="kw">continue</span>; |
| } |
| |
| <span class="kw">let</span> <span class="ident">float_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">LitFloat</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">float_token</span>) <span class="op">=</span> <span class="ident">float_token</span> { |
| <span class="kw">if</span> <span class="ident">multi_index</span>(<span class="kw-2">&mut</span> <span class="ident">e</span>, <span class="kw-2">&mut</span> <span class="ident">dot_token</span>, <span class="ident">float_token</span>)<span class="question-mark">?</span> { |
| <span class="kw">continue</span>; |
| } |
| } |
| |
| <span class="kw">let</span> <span class="ident">member</span>: <span class="ident">Member</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">turbofish</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">member</span>.<span class="ident">is_named</span>() <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) { |
| <span class="prelude-val">Some</span>(<span class="ident">MethodTurbofish</span> { |
| <span class="ident">colon2_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">lt_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">args</span>: { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">args</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">></span>]) { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">generic_method_argument</span>)<span class="question-mark">?</span>; |
| <span class="ident">args</span>.<span class="ident">push_value</span>(<span class="ident">value</span>); |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">></span>]) { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">punct</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">args</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| } |
| <span class="ident">args</span> |
| }, |
| <span class="ident">gt_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| }; |
| |
| <span class="kw">if</span> <span class="ident">turbofish</span>.<span class="ident">is_some</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Member::Named</span>(<span class="ident">method</span>) <span class="op">=</span> <span class="ident">member</span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::MethodCall</span>(<span class="ident">ExprMethodCall</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">receiver</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">dot_token</span>, |
| <span class="ident">method</span>, |
| <span class="ident">turbofish</span>, |
| <span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">args</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Expr::parse</span>)<span class="question-mark">?</span>, |
| }); |
| <span class="kw">continue</span>; |
| } |
| } |
| |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Field</span>(<span class="ident">ExprField</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">base</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">dot_token</span>, |
| <span class="ident">member</span>, |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Bracket</span>) { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Index</span>(<span class="ident">ExprIndex</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">bracket_token</span>: <span class="macro">bracketed!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">index</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="question-mark">?</span>]) { |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Try</span>(<span class="ident">ExprTry</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">question_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">e</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">trailer_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">atom_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Call</span>(<span class="ident">ExprCall</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">func</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">args</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Expr::parse</span>)<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[.]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">token::Await</span>) |
| { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">float_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">LitFloat</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">float_token</span>) <span class="op">=</span> <span class="ident">float_token</span> { |
| <span class="kw">if</span> <span class="ident">multi_index</span>(<span class="kw-2">&mut</span> <span class="ident">e</span>, <span class="kw-2">&mut</span> <span class="ident">dot_token</span>, <span class="ident">float_token</span>)<span class="question-mark">?</span> { |
| <span class="kw">continue</span>; |
| } |
| } |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Field</span>(<span class="ident">ExprField</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">base</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">dot_token</span>, |
| <span class="ident">member</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Bracket</span>) { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Index</span>(<span class="ident">ExprIndex</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">e</span>), |
| <span class="ident">bracket_token</span>: <span class="macro">bracketed!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">index</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }); |
| } <span class="kw">else</span> { |
| <span class="kw">break</span>; |
| } |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">e</span>) |
| } |
| |
| <span class="comment">// Parse all atomic expressions which don't have to worry about precedence</span> |
| <span class="comment">// interactions, as they are fully contained.</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">atom_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Group</span>) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[::]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="op">!</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">token::Brace</span>) |
| { |
| <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_group</span>).<span class="ident">map</span>(<span class="ident">Expr::Group</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lit</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Lit</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">async</span>]) |
| <span class="op">&&</span> (<span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">token::Brace</span>) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="kw">move</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="ident">token::Brace</span>)) |
| { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Async</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">try</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::TryBlock</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">|</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">async</span>]) <span class="op">&&</span> (<span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="op">|</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="kw">move</span>])) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">static</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">move</span>]) |
| { |
| <span class="ident">expr_closure</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Closure</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op"><</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">self</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">Self</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">super</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>]) |
| { |
| <span class="ident">path_or_macro_or_struct</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) { |
| <span class="ident">paren_or_tuple</span>(<span class="ident">input</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">break</span>]) { |
| <span class="ident">expr_break</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Break</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">continue</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Continue</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">return</span>]) { |
| <span class="ident">expr_ret</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Return</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Bracket</span>) { |
| <span class="ident">array_or_repeat</span>(<span class="ident">input</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">let</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Let</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">if</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::If</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">while</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::While</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">for</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::ForLoop</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">loop</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Loop</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">match</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Match</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">yield</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Yield</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">unsafe</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Unsafe</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">const</span>]) { |
| <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_const</span>).<span class="ident">map</span>(<span class="ident">Expr::Verbatim</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Block</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) { |
| <span class="ident">expr_range</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>).<span class="ident">map</span>(<span class="ident">Expr::Range</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">_</span>]) { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Verbatim</span>(<span class="ident">TokenStream::from</span>( |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">TokenTree</span><span class="op">></span>()<span class="question-mark">?</span>, |
| ))) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</span>) { |
| <span class="kw">let</span> <span class="ident">the_label</span>: <span class="ident">Label</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">expr</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">while</span>]) { |
| <span class="ident">Expr::While</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">for</span>]) { |
| <span class="ident">Expr::ForLoop</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">loop</span>]) { |
| <span class="ident">Expr::Loop</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">Expr::Block</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">input</span>.<span class="ident">error</span>(<span class="string">"expected loop or block expression"</span>)); |
| }; |
| <span class="kw">match</span> <span class="kw-2">&mut</span> <span class="ident">expr</span> { |
| <span class="ident">Expr::While</span>(<span class="ident">ExprWhile</span> { <span class="ident">label</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::ForLoop</span>(<span class="ident">ExprForLoop</span> { <span class="ident">label</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Loop</span>(<span class="ident">ExprLoop</span> { <span class="ident">label</span>, .. }) |
| <span class="op">|</span> <span class="ident">Expr::Block</span>(<span class="ident">ExprBlock</span> { <span class="ident">label</span>, .. }) => <span class="kw-2">*</span><span class="ident">label</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">the_label</span>), |
| <span class="kw">_</span> => <span class="macro">unreachable!</span>(), |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">expr</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">input</span>.<span class="ident">error</span>(<span class="string">"expected expression"</span>)) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">atom_expr</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">_allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lit</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Lit</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) { |
| <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_paren</span>).<span class="ident">map</span>(<span class="ident">Expr::Paren</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op"><</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">self</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">Self</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">super</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>]) |
| { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::Path</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">input</span>.<span class="ident">error</span>(<span class="string">"unsupported expression; enable syn's features=[\"full\"]"</span>)) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">path_or_macro_or_struct</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">begin</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>(); |
| <span class="kw">let</span> <span class="ident">expr</span>: <span class="ident">ExprPath</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">if</span> <span class="ident">expr</span>.<span class="ident">qself</span>.<span class="ident">is_none</span>() <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">!</span>]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">!</span><span class="op">=</span>]) { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">contains_arguments</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="kw">for</span> <span class="ident">segment</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">expr</span>.<span class="ident">path</span>.<span class="ident">segments</span> { |
| <span class="kw">match</span> <span class="ident">segment</span>.<span class="ident">arguments</span> { |
| <span class="ident">PathArguments::None</span> => {} |
| <span class="ident">PathArguments::AngleBracketed</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">PathArguments::Parenthesized</span>(<span class="kw">_</span>) => { |
| <span class="ident">contains_arguments</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| } |
| } |
| } |
| |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">contains_arguments</span> { |
| <span class="kw">let</span> <span class="ident">bang_token</span>: <span class="macro">Token!</span>[<span class="op">!</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> (<span class="ident">delimiter</span>, <span class="ident">tokens</span>) <span class="op">=</span> <span class="ident">mac::parse_delimiter</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Expr::Macro</span>(<span class="ident">ExprMacro</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">mac</span>: <span class="ident">Macro</span> { |
| <span class="ident">path</span>: <span class="ident">expr</span>.<span class="ident">path</span>, |
| <span class="ident">bang_token</span>, |
| <span class="ident">delimiter</span>, |
| <span class="ident">tokens</span>, |
| }, |
| })); |
| } |
| } |
| |
| <span class="kw">if</span> <span class="ident">allow_struct</span>.<span class="number">0</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="kw">let</span> <span class="ident">outer_attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">let</span> <span class="ident">expr_struct</span> <span class="op">=</span> <span class="ident">expr_struct_helper</span>(<span class="ident">input</span>, <span class="ident">outer_attrs</span>, <span class="ident">expr</span>.<span class="ident">path</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">expr</span>.<span class="ident">qself</span>.<span class="ident">is_some</span>() { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Verbatim</span>(<span class="ident">verbatim::between</span>(<span class="ident">begin</span>, <span class="ident">input</span>))) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Struct</span>(<span class="ident">expr_struct</span>)) |
| } |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Path</span>(<span class="ident">expr</span>)) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprMacro</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprMacro</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">mac</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">paren_or_tuple</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">paren_token</span> <span class="op">=</span> <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="kw">let</span> <span class="ident">inner_attrs</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Expr::Tuple</span>(<span class="ident">ExprTuple</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">paren_token</span>, |
| <span class="ident">elems</span>: <span class="ident">Punctuated::new</span>(), |
| })); |
| } |
| |
| <span class="kw">let</span> <span class="ident">first</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Expr::Paren</span>(<span class="ident">ExprParen</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">paren_token</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">first</span>), |
| })); |
| } |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">elems</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="ident">elems</span>.<span class="ident">push_value</span>(<span class="ident">first</span>); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">let</span> <span class="ident">punct</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_value</span>(<span class="ident">value</span>); |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Tuple</span>(<span class="ident">ExprTuple</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">paren_token</span>, |
| <span class="ident">elems</span>, |
| })) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">array_or_repeat</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">bracket_token</span> <span class="op">=</span> <span class="macro">bracketed!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="kw">let</span> <span class="ident">inner_attrs</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Expr::Array</span>(<span class="ident">ExprArray</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">bracket_token</span>, |
| <span class="ident">elems</span>: <span class="ident">Punctuated::new</span>(), |
| })); |
| } |
| |
| <span class="kw">let</span> <span class="ident">first</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">elems</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="ident">elems</span>.<span class="ident">push_value</span>(<span class="ident">first</span>); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">let</span> <span class="ident">punct</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_value</span>(<span class="ident">value</span>); |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Array</span>(<span class="ident">ExprArray</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">bracket_token</span>, |
| <span class="ident">elems</span>, |
| })) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) { |
| <span class="kw">let</span> <span class="ident">semi_token</span>: <span class="macro">Token!</span>[;] <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">len</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">Expr::Repeat</span>(<span class="ident">ExprRepeat</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">bracket_token</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">first</span>), |
| <span class="ident">semi_token</span>, |
| <span class="ident">len</span>: <span class="ident">Box::new</span>(<span class="ident">len</span>), |
| })) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">content</span>.<span class="ident">error</span>(<span class="string">"expected `,` or `;`"</span>)) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprArray</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">bracket_token</span> <span class="op">=</span> <span class="macro">bracketed!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="kw">let</span> <span class="ident">inner_attrs</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">elems</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">let</span> <span class="ident">first</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_value</span>(<span class="ident">first</span>); |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">punct</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprArray</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">bracket_token</span>, |
| <span class="ident">elems</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprRepeat</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprRepeat</span> { |
| <span class="ident">bracket_token</span>: <span class="macro">bracketed!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">attrs</span>: <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">semi_token</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">len</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">expr_early</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">expr</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">if</span>]) { |
| <span class="ident">Expr::If</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">while</span>]) { |
| <span class="ident">Expr::While</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">for</span>]) { |
| <span class="ident">Expr::ForLoop</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">loop</span>]) { |
| <span class="ident">Expr::Loop</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">match</span>]) { |
| <span class="ident">Expr::Match</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">try</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">Expr::TryBlock</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">unsafe</span>]) { |
| <span class="ident">Expr::Unsafe</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">const</span>]) { |
| <span class="ident">Expr::Verbatim</span>(<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_const</span>)<span class="question-mark">?</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">Expr::Block</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">expr</span> <span class="op">=</span> <span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| |
| <span class="ident">attrs</span>.<span class="ident">extend</span>(<span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">Vec::new</span>())); |
| <span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">attrs</span>); |
| |
| <span class="kw">return</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">expr</span>, <span class="ident">allow_struct</span>, <span class="ident">Precedence::Any</span>); |
| }; |
| |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[.]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="question-mark">?</span>]) { |
| <span class="ident">expr</span> <span class="op">=</span> <span class="ident">trailer_helper</span>(<span class="ident">input</span>, <span class="ident">expr</span>)<span class="question-mark">?</span>; |
| |
| <span class="ident">attrs</span>.<span class="ident">extend</span>(<span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">Vec::new</span>())); |
| <span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">attrs</span>); |
| |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="kw">return</span> <span class="ident">parse_expr</span>(<span class="ident">input</span>, <span class="ident">expr</span>, <span class="ident">allow_struct</span>, <span class="ident">Precedence::Any</span>); |
| } |
| |
| <span class="ident">attrs</span>.<span class="ident">extend</span>(<span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">Vec::new</span>())); |
| <span class="ident">expr</span>.<span class="ident">replace_attrs</span>(<span class="ident">attrs</span>); |
| <span class="prelude-val">Ok</span>(<span class="ident">expr</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprLit</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprLit</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">lit</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_group</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprGroup</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">group</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::group::parse_group</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprGroup</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">group_token</span>: <span class="ident">group</span>.<span class="ident">token</span>, |
| <span class="ident">expr</span>: <span class="ident">group</span>.<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprParen</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="ident">expr_paren</span>(<span class="ident">input</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">expr_paren</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprParen</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprParen</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">expr</span>: <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">generic_method_argument</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">GenericMethodArgument</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lit</span>) { |
| <span class="kw">let</span> <span class="ident">lit</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">GenericMethodArgument::Const</span>(<span class="ident">Expr::Lit</span>(<span class="ident">lit</span>))); |
| } |
| |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="kw">let</span> <span class="ident">block</span>: <span class="ident">ExprBlock</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">GenericMethodArgument::Const</span>(<span class="ident">Expr::Block</span>(<span class="ident">block</span>))); |
| } |
| |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericMethodArgument::Type</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprLet</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprLet</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">let_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">pat</span>: <span class="ident">pat::parsing::multi_pat_with_leading_vert</span>(<span class="ident">input</span>)<span class="question-mark">?</span>, |
| <span class="ident">eq_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Expr::parse_without_eager_brace</span>)<span class="question-mark">?</span>), |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprIf</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprIf</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">if_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">cond</span>: <span class="ident">Box::new</span>(<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Expr::parse_without_eager_brace</span>)<span class="question-mark">?</span>), |
| <span class="ident">then_branch</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">else_branch</span>: { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">else</span>]) { |
| <span class="prelude-val">Some</span>(<span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">else_block</span>)<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| } |
| }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">else_block</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span>(<span class="macro">Token!</span>[<span class="kw">else</span>], <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>)<span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">else_token</span>: <span class="macro">Token!</span>[<span class="kw">else</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>(); |
| <span class="kw">let</span> <span class="ident">else_branch</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">if</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Expr::If</span>)<span class="question-mark">?</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) { |
| <span class="ident">Expr::Block</span>(<span class="ident">ExprBlock</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">label</span>: <span class="prelude-val">None</span>, |
| <span class="ident">block</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } <span class="kw">else</span> { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>()); |
| }; |
| |
| <span class="prelude-val">Ok</span>((<span class="ident">else_token</span>, <span class="ident">Box::new</span>(<span class="ident">else_branch</span>))) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprForLoop</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">for_token</span>: <span class="macro">Token!</span>[<span class="kw">for</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">pat</span> <span class="op">=</span> <span class="ident">pat::parsing::multi_pat_with_leading_vert</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">in_token</span>: <span class="macro">Token!</span>[<span class="kw">in</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">expr</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Expr::parse_without_eager_brace</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">stmts</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprForLoop</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">label</span>, |
| <span class="ident">for_token</span>, |
| <span class="ident">pat</span>, |
| <span class="ident">in_token</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">expr</span>), |
| <span class="ident">body</span>: <span class="ident">Block</span> { <span class="ident">brace_token</span>, <span class="ident">stmts</span> }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprLoop</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">loop_token</span>: <span class="macro">Token!</span>[<span class="kw">loop</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">stmts</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprLoop</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">label</span>, |
| <span class="ident">loop_token</span>, |
| <span class="ident">body</span>: <span class="ident">Block</span> { <span class="ident">brace_token</span>, <span class="ident">stmts</span> }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprMatch</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">match_token</span>: <span class="macro">Token!</span>[<span class="kw">match</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">expr</span> <span class="op">=</span> <span class="ident">Expr::parse_without_eager_brace</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">arms</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="ident">arms</span>.<span class="ident">push</span>(<span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Arm::parse</span>)<span class="question-mark">?</span>); |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprMatch</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">match_token</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">expr</span>), |
| <span class="ident">brace_token</span>, |
| <span class="ident">arms</span>, |
| }) |
| } |
| } |
| |
| <span class="macro">macro_rules!</span> <span class="ident">impl_by_parsing_expr</span> { |
| ( |
| $( |
| <span class="macro-nonterminal">$</span><span class="macro-nonterminal">expr_type</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">variant</span>:<span class="ident">ident</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">msg</span>:<span class="ident">expr</span>, |
| )<span class="op">*</span> |
| ) => { |
| $( |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>, <span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>))]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">expr_type</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">expr</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">loop</span> { |
| <span class="kw">match</span> <span class="ident">expr</span> { |
| <span class="ident">Expr</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">variant</span>(<span class="ident">inner</span>) => <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">inner</span>), |
| <span class="ident">Expr::Group</span>(<span class="ident">next</span>) => <span class="ident">expr</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">next</span>.<span class="ident">expr</span>, |
| <span class="kw">_</span> => <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">Error::new_spanned</span>(<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">msg</span>)), |
| } |
| } |
| } |
| } |
| )<span class="op">*</span> |
| }; |
| } |
| |
| <span class="macro">impl_by_parsing_expr!</span> { |
| <span class="ident">ExprCall</span>, <span class="ident">Call</span>, <span class="string">"expected function call expression"</span>, |
| <span class="ident">ExprMethodCall</span>, <span class="ident">MethodCall</span>, <span class="string">"expected method call expression"</span>, |
| <span class="ident">ExprTuple</span>, <span class="ident">Tuple</span>, <span class="string">"expected tuple expression"</span>, |
| <span class="ident">ExprBinary</span>, <span class="ident">Binary</span>, <span class="string">"expected binary operation"</span>, |
| <span class="ident">ExprCast</span>, <span class="ident">Cast</span>, <span class="string">"expected cast expression"</span>, |
| <span class="ident">ExprType</span>, <span class="ident">Type</span>, <span class="string">"expected type ascription expression"</span>, |
| <span class="ident">ExprAssign</span>, <span class="ident">Assign</span>, <span class="string">"expected assignment expression"</span>, |
| <span class="ident">ExprAssignOp</span>, <span class="ident">AssignOp</span>, <span class="string">"expected compound assignment expression"</span>, |
| <span class="ident">ExprField</span>, <span class="ident">Field</span>, <span class="string">"expected struct field access"</span>, |
| <span class="ident">ExprIndex</span>, <span class="ident">Index</span>, <span class="string">"expected indexing expression"</span>, |
| <span class="ident">ExprRange</span>, <span class="ident">Range</span>, <span class="string">"expected range expression"</span>, |
| <span class="ident">ExprTry</span>, <span class="ident">Try</span>, <span class="string">"expected try expression"</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprBox</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="ident">expr_box</span>(<span class="ident">input</span>, <span class="ident">attrs</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_box</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprBox</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprBox</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">box_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>), |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprUnary</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="ident">expr_unary</span>(<span class="ident">input</span>, <span class="ident">attrs</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_unary</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprUnary</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprUnary</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">op</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>), |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprClosure</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="ident">expr_closure</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprReference</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprReference</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">and_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">raw</span>: <span class="ident">Reserved::default</span>(), |
| <span class="ident">mutability</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: <span class="ident">Box::new</span>(<span class="ident">unary_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>), |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprBreak</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="ident">expr_break</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprReturn</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">allow_struct</span> <span class="op">=</span> <span class="ident">AllowStruct</span>(<span class="bool-val">true</span>); |
| <span class="ident">expr_ret</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprTryBlock</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprTryBlock</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">try_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">block</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprYield</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprYield</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">yield_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: { |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">is_empty</span>() <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) { |
| <span class="prelude-val">Some</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| } |
| }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_closure</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprClosure</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">asyncness</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">async</span>]<span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">movability</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">static</span>]<span class="op">></span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">asyncness</span>.<span class="ident">is_none</span>() { |
| <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| }; |
| <span class="kw">let</span> <span class="ident">capture</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">move</span>]<span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">or1_token</span>: <span class="macro">Token!</span>[<span class="op">|</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">inputs</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">|</span>]) { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">closure_arg</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| <span class="ident">inputs</span>.<span class="ident">push_value</span>(<span class="ident">value</span>); |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">|</span>]) { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">punct</span>: <span class="macro">Token!</span>[,] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">inputs</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| } |
| |
| <span class="kw">let</span> <span class="ident">or2_token</span>: <span class="macro">Token!</span>[<span class="op">|</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> (<span class="ident">output</span>, <span class="ident">body</span>) <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[->]) { |
| <span class="kw">let</span> <span class="ident">arrow_token</span>: <span class="macro">Token!</span>[->] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">ty</span>: <span class="ident">Type</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">body</span>: <span class="ident">Block</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">output</span> <span class="op">=</span> <span class="ident">ReturnType::Type</span>(<span class="ident">arrow_token</span>, <span class="ident">Box::new</span>(<span class="ident">ty</span>)); |
| <span class="kw">let</span> <span class="ident">block</span> <span class="op">=</span> <span class="ident">Expr::Block</span>(<span class="ident">ExprBlock</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">label</span>: <span class="prelude-val">None</span>, |
| <span class="ident">block</span>: <span class="ident">body</span>, |
| }); |
| (<span class="ident">output</span>, <span class="ident">block</span>) |
| } <span class="kw">else</span> { |
| <span class="kw">let</span> <span class="ident">body</span> <span class="op">=</span> <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| (<span class="ident">ReturnType::Default</span>, <span class="ident">body</span>) |
| }; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprClosure</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">asyncness</span>, |
| <span class="ident">movability</span>, |
| <span class="ident">capture</span>, |
| <span class="ident">or1_token</span>, |
| <span class="ident">inputs</span>, |
| <span class="ident">or2_token</span>, |
| <span class="ident">output</span>, |
| <span class="ident">body</span>: <span class="ident">Box::new</span>(<span class="ident">body</span>), |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprAsync</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprAsync</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">async_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">capture</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">block</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">closure_arg</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Pat</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pat</span>: <span class="ident">Pat</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[:]) { |
| <span class="prelude-val">Ok</span>(<span class="ident">Pat::Type</span>(<span class="ident">PatType</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">pat</span>: <span class="ident">Box::new</span>(<span class="ident">pat</span>), |
| <span class="ident">colon_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">ty</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| })) |
| } <span class="kw">else</span> { |
| <span class="kw">match</span> <span class="kw-2">&mut</span> <span class="ident">pat</span> { |
| <span class="ident">Pat::Box</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Ident</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Lit</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Macro</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Or</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Path</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Range</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Reference</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Rest</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Slice</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Struct</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Tuple</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::TupleStruct</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| <span class="ident">Pat::Type</span>(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(), |
| <span class="ident">Pat::Verbatim</span>(<span class="kw">_</span>) => {} |
| <span class="ident">Pat::Wild</span>(<span class="ident">pat</span>) => <span class="ident">pat</span>.<span class="ident">attrs</span> <span class="op">=</span> <span class="ident">attrs</span>, |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> |
| <span class="ident">Pat::__TestExhaustive</span>(<span class="kw">_</span>) => <span class="macro">unimplemented!</span>(), |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">test</span>))]</span> |
| <span class="kw">_</span> => <span class="macro">unreachable!</span>(), |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">pat</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprWhile</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">while_token</span>: <span class="macro">Token!</span>[<span class="kw">while</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">cond</span> <span class="op">=</span> <span class="ident">Expr::parse_without_eager_brace</span>(<span class="ident">input</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">stmts</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprWhile</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">label</span>, |
| <span class="ident">while_token</span>, |
| <span class="ident">cond</span>: <span class="ident">Box::new</span>(<span class="ident">cond</span>), |
| <span class="ident">body</span>: <span class="ident">Block</span> { <span class="ident">brace_token</span>, <span class="ident">stmts</span> }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Label</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Label</span> { |
| <span class="ident">name</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">colon_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="prelude-val">Some</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprContinue</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprContinue</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">continue_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">label</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_break</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprBreak</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprBreak</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">break_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">label</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">is_empty</span>() |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) |
| <span class="op">|</span><span class="op">|</span> <span class="op">!</span><span class="ident">allow_struct</span>.<span class="number">0</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) |
| { |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="kw">let</span> <span class="ident">expr</span> <span class="op">=</span> <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Some</span>(<span class="ident">Box::new</span>(<span class="ident">expr</span>)) |
| } |
| }, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_ret</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprReturn</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprReturn</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">return_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">expr</span>: { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">is_empty</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) { |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="comment">// NOTE: return is greedy and eats blocks after it even when in a</span> |
| <span class="comment">// position where structs are not allowed, such as in if statement</span> |
| <span class="comment">// conditions. For example:</span> |
| <span class="comment">//</span> |
| <span class="comment">// if return { println!("A") } {} // Prints "A"</span> |
| <span class="kw">let</span> <span class="ident">expr</span> <span class="op">=</span> <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Some</span>(<span class="ident">Box::new</span>(<span class="ident">expr</span>)) |
| } |
| }, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">FieldValue</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">member</span>: <span class="ident">Member</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> (<span class="ident">colon_token</span>, <span class="ident">value</span>) <span class="op">=</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[:]) <span class="op">|</span><span class="op">|</span> <span class="op">!</span><span class="ident">member</span>.<span class="ident">is_named</span>() { |
| <span class="kw">let</span> <span class="ident">colon_token</span>: <span class="macro">Token!</span>[:] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">value</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| (<span class="prelude-val">Some</span>(<span class="ident">colon_token</span>), <span class="ident">value</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Member::Named</span>(<span class="ident">ident</span>) <span class="op">=</span> <span class="kw-2">&</span><span class="ident">member</span> { |
| <span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">Expr::Path</span>(<span class="ident">ExprPath</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">qself</span>: <span class="prelude-val">None</span>, |
| <span class="ident">path</span>: <span class="ident">Path::from</span>(<span class="ident">ident</span>.<span class="ident">clone</span>()), |
| }); |
| (<span class="prelude-val">None</span>, <span class="ident">value</span>) |
| } <span class="kw">else</span> { |
| <span class="macro">unreachable!</span>() |
| }; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">FieldValue</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">member</span>, |
| <span class="ident">colon_token</span>, |
| <span class="ident">expr</span>: <span class="ident">value</span>, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprStruct</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="kw">let</span> <span class="ident">path</span>: <span class="ident">Path</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">expr_struct_helper</span>(<span class="ident">input</span>, <span class="ident">attrs</span>, <span class="ident">path</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_struct_helper</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="kw-2">mut</span> <span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>, |
| <span class="ident">path</span>: <span class="ident">Path</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprStruct</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">fields</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">ExprStruct</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">brace_token</span>, |
| <span class="ident">path</span>, |
| <span class="ident">fields</span>, |
| <span class="ident">dot2_token</span>: <span class="prelude-val">Some</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>), |
| <span class="ident">rest</span>: <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">Box::new</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>)) |
| }, |
| }); |
| } |
| |
| <span class="ident">fields</span>.<span class="ident">push</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let</span> <span class="ident">punct</span>: <span class="macro">Token!</span>[,] <span class="op">=</span> <span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="ident">fields</span>.<span class="ident">push_punct</span>(<span class="ident">punct</span>); |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprStruct</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">brace_token</span>, |
| <span class="ident">path</span>, |
| <span class="ident">fields</span>, |
| <span class="ident">dot2_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">rest</span>: <span class="prelude-val">None</span>, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprUnsafe</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">unsafe_token</span>: <span class="macro">Token!</span>[<span class="kw">unsafe</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="kw">let</span> <span class="ident">inner_attrs</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">stmts</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprUnsafe</span> { |
| <span class="ident">attrs</span>: <span class="ident">inner_attrs</span>, |
| <span class="ident">unsafe_token</span>, |
| <span class="ident">block</span>: <span class="ident">Block</span> { <span class="ident">brace_token</span>, <span class="ident">stmts</span> }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">expr_const</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TokenStream</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">begin</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>(); |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="kw">const</span>]<span class="op">></span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_inner</span>)<span class="question-mark">?</span>; |
| <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">verbatim::between</span>(<span class="ident">begin</span>, <span class="ident">input</span>)) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprBlock</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">label</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Label</span><span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> <span class="ident">content</span>; |
| <span class="kw">let</span> <span class="ident">brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>); |
| <span class="ident">attr::parsing::parse_inner</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="kw-2">&mut</span> <span class="ident">attrs</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">stmts</span> <span class="op">=</span> <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Block::parse_within</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprBlock</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">label</span>, |
| <span class="ident">block</span>: <span class="ident">Block</span> { <span class="ident">brace_token</span>, <span class="ident">stmts</span> }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">expr_range</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_struct</span>: <span class="ident">AllowStruct</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">ExprRange</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprRange</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">from</span>: <span class="prelude-val">None</span>, |
| <span class="ident">limits</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">to</span>: { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">is_empty</span>() |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[,]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[;]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[.]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) |
| <span class="op">|</span><span class="op">|</span> <span class="op">!</span><span class="ident">allow_struct</span>.<span class="number">0</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) |
| { |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="kw">let</span> <span class="ident">to</span> <span class="op">=</span> <span class="ident">ambiguous_expr</span>(<span class="ident">input</span>, <span class="ident">allow_struct</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Some</span>(<span class="ident">Box::new</span>(<span class="ident">to</span>)) |
| } |
| }, |
| }) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">RangeLimits</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>(); |
| <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..<span class="op">=</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">RangeLimits::Closed</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[...]) { |
| <span class="kw">let</span> <span class="ident">dot3</span>: <span class="macro">Token!</span>[...] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">RangeLimits::Closed</span>(<span class="macro">Token!</span>[..<span class="op">=</span>](<span class="ident">dot3</span>.<span class="ident">spans</span>))) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[..]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">RangeLimits::HalfOpen</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>()) |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">ExprPath</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">Vec::new</span>(); |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">let</span> (<span class="ident">qself</span>, <span class="ident">path</span>) <span class="op">=</span> <span class="ident">path::parsing::qpath</span>(<span class="ident">input</span>, <span class="bool-val">true</span>)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">ExprPath</span> { <span class="ident">attrs</span>, <span class="ident">qself</span>, <span class="ident">path</span> }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Member::Named</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">LitInt</span>) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Member::Unnamed</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">input</span>.<span class="ident">error</span>(<span class="string">"expected identifier or integer"</span>)) |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Arm</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Arm</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">requires_comma</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">Arm</span> { |
| <span class="ident">attrs</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>, |
| <span class="ident">pat</span>: <span class="ident">pat::parsing::multi_pat_with_leading_vert</span>(<span class="ident">input</span>)<span class="question-mark">?</span>, |
| <span class="ident">guard</span>: { |
| <span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">if</span>]) { |
| <span class="kw">let</span> <span class="ident">if_token</span>: <span class="macro">Token!</span>[<span class="kw">if</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">guard</span>: <span class="ident">Expr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="prelude-val">Some</span>((<span class="ident">if_token</span>, <span class="ident">Box::new</span>(<span class="ident">guard</span>))) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| } |
| }, |
| <span class="ident">fat_arrow_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">body</span>: { |
| <span class="kw">let</span> <span class="ident">body</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">expr_early</span>)<span class="question-mark">?</span>; |
| <span class="ident">requires_comma</span> <span class="op">=</span> <span class="ident">requires_terminator</span>(<span class="kw-2">&</span><span class="ident">body</span>); |
| <span class="ident">Box::new</span>(<span class="ident">body</span>) |
| }, |
| <span class="ident">comma</span>: { |
| <span class="kw">if</span> <span class="ident">requires_comma</span> <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">is_empty</span>() { |
| <span class="prelude-val">Some</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>) |
| } <span class="kw">else</span> { |
| <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> |
| } |
| }, |
| }) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"parsing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">lit</span>: <span class="ident">LitInt</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>; |
| <span class="kw">if</span> <span class="ident">lit</span>.<span class="ident">suffix</span>().<span class="ident">is_empty</span>() { |
| <span class="prelude-val">Ok</span>(<span class="ident">Index</span> { |
| <span class="ident">index</span>: <span class="ident">lit</span> |
| .<span class="ident">base10_digits</span>() |
| .<span class="ident">parse</span>() |
| .<span class="ident">map_err</span>(<span class="op">|</span><span class="ident">err</span><span class="op">|</span> <span class="ident">Error::new</span>(<span class="ident">lit</span>.<span class="ident">span</span>(), <span class="ident">err</span>))<span class="question-mark">?</span>, |
| <span class="ident">span</span>: <span class="ident">lit</span>.<span class="ident">span</span>(), |
| }) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Err</span>(<span class="ident">Error::new</span>(<span class="ident">lit</span>.<span class="ident">span</span>(), <span class="string">"expected unsuffixed integer"</span>)) |
| } |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">multi_index</span>(<span class="ident">e</span>: <span class="kw-2">&mut</span> <span class="ident">Expr</span>, <span class="ident">dot_token</span>: <span class="kw-2">&mut</span> <span class="macro">Token!</span>[.], <span class="ident">float</span>: <span class="ident">LitFloat</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">float_repr</span> <span class="op">=</span> <span class="ident">float</span>.<span class="ident">to_string</span>(); |
| <span class="kw">let</span> <span class="ident">trailing_dot</span> <span class="op">=</span> <span class="ident">float_repr</span>.<span class="ident">ends_with</span>(<span class="string">'.'</span>); |
| <span class="kw">if</span> <span class="ident">trailing_dot</span> { |
| <span class="ident">float_repr</span>.<span class="ident">truncate</span>(<span class="ident">float_repr</span>.<span class="ident">len</span>() <span class="op">-</span> <span class="number">1</span>); |
| } |
| <span class="kw">for</span> <span class="ident">part</span> <span class="kw">in</span> <span class="ident">float_repr</span>.<span class="ident">split</span>(<span class="string">'.'</span>) { |
| <span class="kw">let</span> <span class="ident">index</span> <span class="op">=</span> <span class="ident"><span class="kw">crate</span>::parse_str</span>(<span class="ident">part</span>).<span class="ident">map_err</span>(<span class="op">|</span><span class="ident">err</span><span class="op">|</span> <span class="ident">Error::new</span>(<span class="ident">float</span>.<span class="ident">span</span>(), <span class="ident">err</span>))<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">base</span> <span class="op">=</span> <span class="ident">mem::replace</span>(<span class="ident">e</span>, <span class="ident">Expr::__TestExhaustive</span>(<span class="ident"><span class="kw">crate</span>::private</span>(()))); |
| <span class="kw-2">*</span><span class="ident">e</span> <span class="op">=</span> <span class="ident">Expr::Field</span>(<span class="ident">ExprField</span> { |
| <span class="ident">attrs</span>: <span class="ident">Vec::new</span>(), |
| <span class="ident">base</span>: <span class="ident">Box::new</span>(<span class="ident">base</span>), |
| <span class="ident">dot_token</span>: <span class="macro">Token!</span>[.](<span class="ident">dot_token</span>.<span class="ident">span</span>), |
| <span class="ident">member</span>: <span class="ident">Member::Unnamed</span>(<span class="ident">index</span>), |
| }); |
| <span class="kw-2">*</span><span class="ident">dot_token</span> <span class="op">=</span> <span class="macro">Token!</span>[.](<span class="ident">float</span>.<span class="ident">span</span>()); |
| } |
| <span class="prelude-val">Ok</span>(<span class="op">!</span><span class="ident">trailing_dot</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">impl</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">is_named</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">bool</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">Member::Named</span>(<span class="kw">_</span>) => <span class="bool-val">true</span>, |
| <span class="ident">Member::Unnamed</span>(<span class="kw">_</span>) => <span class="bool-val">false</span>, |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod</span> <span class="ident">printing</span> { |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::attr::FilterAttrs</span>; |
| <span class="kw">use</span> <span class="ident">proc_macro2</span>::{<span class="ident">Literal</span>, <span class="ident">TokenStream</span>}; |
| <span class="kw">use</span> <span class="ident">quote</span>::{<span class="ident">ToTokens</span>, <span class="ident">TokenStreamExt</span>}; |
| |
| <span class="comment">// If the given expression is a bare `ExprStruct`, wraps it in parenthesis</span> |
| <span class="comment">// before appending it to `TokenStream`.</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>, <span class="ident">e</span>: <span class="kw-2">&</span><span class="ident">Expr</span>) { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Expr::Struct</span>(<span class="kw">_</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="ident">e</span> { |
| <span class="ident">token::Paren::default</span>().<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">e</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } <span class="kw">else</span> { |
| <span class="ident">e</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">outer_attrs_to_tokens</span>(<span class="ident">attrs</span>: <span class="kw-2">&</span>[<span class="ident">Attribute</span>], <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="ident">attrs</span>.<span class="ident">outer</span>()); |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">inner_attrs_to_tokens</span>(<span class="ident">attrs</span>: <span class="kw-2">&</span>[<span class="ident">Attribute</span>], <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="ident">attrs</span>.<span class="ident">inner</span>()); |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">outer_attrs_to_tokens</span>(<span class="ident">_attrs</span>: <span class="kw-2">&</span>[<span class="ident">Attribute</span>], <span class="ident">_tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) {} |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>))]</span> |
| <span class="kw">fn</span> <span class="ident">inner_attrs_to_tokens</span>(<span class="ident">_attrs</span>: <span class="kw-2">&</span>[<span class="ident">Attribute</span>], <span class="ident">_tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) {} |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprBox</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">box_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprArray</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">bracket_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">elems</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprCall</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">func</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="self">self</span>.<span class="ident">args</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprMethodCall</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">receiver</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">dot_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">method</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">turbofish</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="self">self</span>.<span class="ident">args</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">MethodTurbofish</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="self">self</span>.<span class="ident">colon2_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">lt_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">args</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">gt_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">GenericMethodArgument</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">GenericMethodArgument::Type</span>(<span class="ident">t</span>) => <span class="ident">t</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| <span class="ident">GenericMethodArgument::Const</span>(<span class="ident">c</span>) => <span class="ident">c</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprTuple</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">elems</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="comment">// If we only have one argument, we need a trailing comma to</span> |
| <span class="comment">// distinguish ExprTuple from ExprParen.</span> |
| <span class="kw">if</span> <span class="self">self</span>.<span class="ident">elems</span>.<span class="ident">len</span>() <span class="op">==</span> <span class="number">1</span> <span class="op">&&</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">elems</span>.<span class="ident">trailing_punct</span>() { |
| <span class="op"><</span><span class="macro">Token!</span>[,]<span class="op">></span><span class="ident">::default</span>().<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprBinary</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">left</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">op</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">right</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprUnary</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">op</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprLit</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">lit</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprCast</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">as_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">ty</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprType</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">colon_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">ty</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="kw">fn</span> <span class="ident">maybe_wrap_else</span>(<span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>, <span class="ident">else_</span>: <span class="kw-2">&</span><span class="prelude-ty">Option</span><span class="op"><</span>(<span class="macro">Token!</span>[<span class="kw">else</span>], <span class="ident">Box</span><span class="op"><</span><span class="ident">Expr</span><span class="op">></span>)<span class="op">></span>) { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">else_token</span>, <span class="ident">else_</span>)) <span class="op">=</span> <span class="ident">else_</span> { |
| <span class="ident">else_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| |
| <span class="comment">// If we are not one of the valid expressions to exist in an else</span> |
| <span class="comment">// clause, wrap ourselves in a block.</span> |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">else_</span> { |
| <span class="ident">Expr::If</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">Expr::Block</span>(<span class="kw">_</span>) => { |
| <span class="ident">else_</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| <span class="kw">_</span> => { |
| <span class="ident">token::Brace::default</span>().<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">else_</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprLet</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">let_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">pat</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">eq_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">expr</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprIf</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">if_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">cond</span>); |
| <span class="self">self</span>.<span class="ident">then_branch</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">maybe_wrap_else</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">else_branch</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprWhile</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">while_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">cond</span>); |
| <span class="self">self</span>.<span class="ident">body</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">body</span>.<span class="ident">stmts</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprForLoop</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">for_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">pat</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">in_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">expr</span>); |
| <span class="self">self</span>.<span class="ident">body</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">body</span>.<span class="ident">stmts</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprLoop</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">loop_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">body</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">body</span>.<span class="ident">stmts</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprMatch</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">match_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">wrap_bare_struct</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">expr</span>); |
| <span class="self">self</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="kw">for</span> (<span class="ident">i</span>, <span class="ident">arm</span>) <span class="kw">in</span> <span class="self">self</span>.<span class="ident">arms</span>.<span class="ident">iter</span>().<span class="ident">enumerate</span>() { |
| <span class="ident">arm</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="comment">// Ensure that we have a comma after a non-block arm, except</span> |
| <span class="comment">// for the last one.</span> |
| <span class="kw">let</span> <span class="ident">is_last</span> <span class="op">=</span> <span class="ident">i</span> <span class="op">==</span> <span class="self">self</span>.<span class="ident">arms</span>.<span class="ident">len</span>() <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">is_last</span> <span class="op">&&</span> <span class="ident">requires_terminator</span>(<span class="kw-2">&</span><span class="ident">arm</span>.<span class="ident">body</span>) <span class="op">&&</span> <span class="ident">arm</span>.<span class="ident">comma</span>.<span class="ident">is_none</span>() { |
| <span class="op"><</span><span class="macro">Token!</span>[,]<span class="op">></span><span class="ident">::default</span>().<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprAsync</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">async_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">capture</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">block</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprAwait</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">base</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">dot_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">await_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprTryBlock</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">try_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">block</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprYield</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">yield_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprClosure</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">asyncness</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">movability</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">capture</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">or1_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">inputs</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">or2_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">output</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">body</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprUnsafe</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">unsafe_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">block</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">block</span>.<span class="ident">stmts</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprBlock</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">block</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">block</span>.<span class="ident">stmts</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprAssign</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">left</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">eq_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">right</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprAssignOp</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">left</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">op</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">right</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprField</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">base</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">dot_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">member</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Member</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="kw">match</span> <span class="self">self</span> { |
| <span class="ident">Member::Named</span>(<span class="ident">ident</span>) => <span class="ident">ident</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| <span class="ident">Member::Unnamed</span>(<span class="ident">index</span>) => <span class="ident">index</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Index</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lit</span> <span class="op">=</span> <span class="ident">Literal::i64_unsuffixed</span>(<span class="ident">i64::from</span>(<span class="self">self</span>.<span class="ident">index</span>)); |
| <span class="ident">lit</span>.<span class="ident">set_span</span>(<span class="self">self</span>.<span class="ident">span</span>); |
| <span class="ident">tokens</span>.<span class="ident">append</span>(<span class="ident">lit</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprIndex</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">bracket_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="self">self</span>.<span class="ident">index</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprRange</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">from</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="kw">match</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">limits</span> { |
| <span class="ident">RangeLimits::HalfOpen</span>(<span class="ident">t</span>) => <span class="ident">t</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| <span class="ident">RangeLimits::Closed</span>(<span class="ident">t</span>) => <span class="ident">t</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| } |
| <span class="self">self</span>.<span class="ident">to</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprPath</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="ident">private::print_path</span>(<span class="ident">tokens</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">qself</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">path</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprReference</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">and_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">mutability</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprBreak</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">break_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprContinue</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">continue_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">label</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprReturn</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">return_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprMacro</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">mac</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprStruct</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">path</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">brace_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">fields</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">dot2_token</span>) <span class="op">=</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">dot2_token</span> { |
| <span class="ident">dot2_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">rest</span>.<span class="ident">is_some</span>() { |
| <span class="macro">Token!</span>[..](<span class="ident">Span::call_site</span>()).<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| <span class="self">self</span>.<span class="ident">rest</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprRepeat</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">bracket_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">semi_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">len</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprGroup</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">group_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprParen</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">paren_token</span>.<span class="ident">surround</span>(<span class="ident">tokens</span>, <span class="op">|</span><span class="ident">tokens</span><span class="op">|</span> { |
| <span class="ident">inner_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| }); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">ExprTry</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">question_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Label</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="self">self</span>.<span class="ident">name</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">colon_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">FieldValue</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">outer_attrs_to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>, <span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">member</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">colon_token</span>) <span class="op">=</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">colon_token</span> { |
| <span class="ident">colon_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">expr</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"full"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">doc_cfg</span>, <span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"printing"</span>)))]</span> |
| <span class="kw">impl</span> <span class="ident">ToTokens</span> <span class="kw">for</span> <span class="ident">Arm</span> { |
| <span class="kw">fn</span> <span class="ident">to_tokens</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">tokens</span>: <span class="kw-2">&mut</span> <span class="ident">TokenStream</span>) { |
| <span class="ident">tokens</span>.<span class="ident">append_all</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">attrs</span>); |
| <span class="self">self</span>.<span class="ident">pat</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">if_token</span>, <span class="ident">guard</span>)) <span class="op">=</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">guard</span> { |
| <span class="ident">if_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">guard</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| <span class="self">self</span>.<span class="ident">fat_arrow_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">body</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">comma</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| } |
| </code></pre></div> |
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