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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> |
| <span id="1054">1054</span> |
| <span id="1055">1055</span> |
| <span id="1056">1056</span> |
| <span id="1057">1057</span> |
| <span id="1058">1058</span> |
| <span id="1059">1059</span> |
| <span id="1060">1060</span> |
| <span id="1061">1061</span> |
| <span id="1062">1062</span> |
| <span id="1063">1063</span> |
| <span id="1064">1064</span> |
| <span id="1065">1065</span> |
| <span id="1066">1066</span> |
| <span id="1067">1067</span> |
| <span id="1068">1068</span> |
| <span id="1069">1069</span> |
| <span id="1070">1070</span> |
| <span id="1071">1071</span> |
| <span id="1072">1072</span> |
| <span id="1073">1073</span> |
| <span id="1074">1074</span> |
| <span id="1075">1075</span> |
| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
| <span id="1094">1094</span> |
| <span id="1095">1095</span> |
| <span id="1096">1096</span> |
| <span id="1097">1097</span> |
| <span id="1098">1098</span> |
| <span id="1099">1099</span> |
| <span id="1100">1100</span> |
| <span id="1101">1101</span> |
| <span id="1102">1102</span> |
| <span id="1103">1103</span> |
| <span id="1104">1104</span> |
| <span id="1105">1105</span> |
| <span id="1106">1106</span> |
| <span id="1107">1107</span> |
| <span id="1108">1108</span> |
| <span id="1109">1109</span> |
| <span id="1110">1110</span> |
| <span id="1111">1111</span> |
| <span id="1112">1112</span> |
| <span id="1113">1113</span> |
| <span id="1114">1114</span> |
| <span id="1115">1115</span> |
| <span id="1116">1116</span> |
| <span id="1117">1117</span> |
| <span id="1118">1118</span> |
| <span id="1119">1119</span> |
| <span id="1120">1120</span> |
| <span id="1121">1121</span> |
| <span id="1122">1122</span> |
| <span id="1123">1123</span> |
| <span id="1124">1124</span> |
| <span id="1125">1125</span> |
| <span id="1126">1126</span> |
| <span id="1127">1127</span> |
| <span id="1128">1128</span> |
| <span id="1129">1129</span> |
| <span id="1130">1130</span> |
| <span id="1131">1131</span> |
| <span id="1132">1132</span> |
| <span id="1133">1133</span> |
| <span id="1134">1134</span> |
| <span id="1135">1135</span> |
| <span id="1136">1136</span> |
| <span id="1137">1137</span> |
| <span id="1138">1138</span> |
| <span id="1139">1139</span> |
| <span id="1140">1140</span> |
| <span id="1141">1141</span> |
| <span id="1142">1142</span> |
| <span id="1143">1143</span> |
| <span id="1144">1144</span> |
| <span id="1145">1145</span> |
| <span id="1146">1146</span> |
| <span id="1147">1147</span> |
| <span id="1148">1148</span> |
| <span id="1149">1149</span> |
| <span id="1150">1150</span> |
| <span id="1151">1151</span> |
| <span id="1152">1152</span> |
| <span id="1153">1153</span> |
| <span id="1154">1154</span> |
| <span id="1155">1155</span> |
| <span id="1156">1156</span> |
| <span id="1157">1157</span> |
| <span id="1158">1158</span> |
| <span id="1159">1159</span> |
| <span id="1160">1160</span> |
| <span id="1161">1161</span> |
| <span id="1162">1162</span> |
| <span id="1163">1163</span> |
| <span id="1164">1164</span> |
| <span id="1165">1165</span> |
| <span id="1166">1166</span> |
| <span id="1167">1167</span> |
| <span id="1168">1168</span> |
| <span id="1169">1169</span> |
| <span id="1170">1170</span> |
| <span id="1171">1171</span> |
| <span id="1172">1172</span> |
| <span id="1173">1173</span> |
| <span id="1174">1174</span> |
| <span id="1175">1175</span> |
| <span id="1176">1176</span> |
| <span id="1177">1177</span> |
| <span id="1178">1178</span> |
| <span id="1179">1179</span> |
| <span id="1180">1180</span> |
| <span id="1181">1181</span> |
| <span id="1182">1182</span> |
| <span id="1183">1183</span> |
| <span id="1184">1184</span> |
| <span id="1185">1185</span> |
| <span id="1186">1186</span> |
| <span id="1187">1187</span> |
| <span id="1188">1188</span> |
| <span id="1189">1189</span> |
| <span id="1190">1190</span> |
| <span id="1191">1191</span> |
| <span id="1192">1192</span> |
| <span id="1193">1193</span> |
| <span id="1194">1194</span> |
| <span id="1195">1195</span> |
| <span id="1196">1196</span> |
| <span id="1197">1197</span> |
| <span id="1198">1198</span> |
| <span id="1199">1199</span> |
| <span id="1200">1200</span> |
| <span id="1201">1201</span> |
| <span id="1202">1202</span> |
| <span id="1203">1203</span> |
| <span id="1204">1204</span> |
| <span id="1205">1205</span> |
| <span id="1206">1206</span> |
| <span id="1207">1207</span> |
| <span id="1208">1208</span> |
| <span id="1209">1209</span> |
| <span id="1210">1210</span> |
| <span id="1211">1211</span> |
| <span id="1212">1212</span> |
| <span id="1213">1213</span> |
| <span id="1214">1214</span> |
| <span id="1215">1215</span> |
| <span id="1216">1216</span> |
| <span id="1217">1217</span> |
| <span id="1218">1218</span> |
| <span id="1219">1219</span> |
| <span id="1220">1220</span> |
| <span id="1221">1221</span> |
| <span id="1222">1222</span> |
| <span id="1223">1223</span> |
| <span id="1224">1224</span> |
| <span id="1225">1225</span> |
| <span id="1226">1226</span> |
| <span id="1227">1227</span> |
| <span id="1228">1228</span> |
| <span id="1229">1229</span> |
| <span id="1230">1230</span> |
| <span id="1231">1231</span> |
| <span id="1232">1232</span> |
| <span id="1233">1233</span> |
| <span id="1234">1234</span> |
| <span id="1235">1235</span> |
| <span id="1236">1236</span> |
| <span id="1237">1237</span> |
| <span id="1238">1238</span> |
| <span id="1239">1239</span> |
| <span id="1240">1240</span> |
| <span id="1241">1241</span> |
| <span id="1242">1242</span> |
| <span id="1243">1243</span> |
| <span id="1244">1244</span> |
| <span id="1245">1245</span> |
| <span id="1246">1246</span> |
| <span id="1247">1247</span> |
| <span id="1248">1248</span> |
| <span id="1249">1249</span> |
| <span id="1250">1250</span> |
| <span id="1251">1251</span> |
| <span id="1252">1252</span> |
| <span id="1253">1253</span> |
| <span id="1254">1254</span> |
| <span id="1255">1255</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="kw">use</span> <span class="ident">proc_macro2::TokenStream</span>; |
| |
| <span class="macro">ast_enum_of_structs!</span> { |
| <span class="doccomment">/// The possible types that a Rust value could have.</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="doccomment">///</span> |
| <span class="doccomment">/// # Syntax tree enum</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This type is a [syntax tree enum].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [syntax tree enum]: Expr#syntax-tree-enums</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">Type</span> { |
| <span class="doccomment">/// A fixed size array type: `[T; n]`.</span> |
| <span class="ident">Array</span>(<span class="ident">TypeArray</span>), |
| |
| <span class="doccomment">/// A bare function type: `fn(usize) -> bool`.</span> |
| <span class="ident">BareFn</span>(<span class="ident">TypeBareFn</span>), |
| |
| <span class="doccomment">/// A type contained within invisible delimiters.</span> |
| <span class="ident">Group</span>(<span class="ident">TypeGroup</span>), |
| |
| <span class="doccomment">/// An `impl Bound1 + Bound2 + Bound3` type where `Bound` is a trait or</span> |
| <span class="doccomment">/// a lifetime.</span> |
| <span class="ident">ImplTrait</span>(<span class="ident">TypeImplTrait</span>), |
| |
| <span class="doccomment">/// Indication that a type should be inferred by the compiler: `_`.</span> |
| <span class="ident">Infer</span>(<span class="ident">TypeInfer</span>), |
| |
| <span class="doccomment">/// A macro in the type position.</span> |
| <span class="ident">Macro</span>(<span class="ident">TypeMacro</span>), |
| |
| <span class="doccomment">/// The never type: `!`.</span> |
| <span class="ident">Never</span>(<span class="ident">TypeNever</span>), |
| |
| <span class="doccomment">/// A parenthesized type equivalent to the inner type.</span> |
| <span class="ident">Paren</span>(<span class="ident">TypeParen</span>), |
| |
| <span class="doccomment">/// A path like `std::slice::Iter`, optionally qualified with a</span> |
| <span class="doccomment">/// self-type as in `<Vec<T> as SomeTrait>::Associated`.</span> |
| <span class="ident">Path</span>(<span class="ident">TypePath</span>), |
| |
| <span class="doccomment">/// A raw pointer type: `*const T` or `*mut T`.</span> |
| <span class="ident">Ptr</span>(<span class="ident">TypePtr</span>), |
| |
| <span class="doccomment">/// A reference type: `&'a T` or `&'a mut T`.</span> |
| <span class="ident">Reference</span>(<span class="ident">TypeReference</span>), |
| |
| <span class="doccomment">/// A dynamically sized slice type: `[T]`.</span> |
| <span class="ident">Slice</span>(<span class="ident">TypeSlice</span>), |
| |
| <span class="doccomment">/// A trait object type `Bound1 + Bound2 + Bound3` where `Bound` is a</span> |
| <span class="doccomment">/// trait or a lifetime.</span> |
| <span class="ident">TraitObject</span>(<span class="ident">TypeTraitObject</span>), |
| |
| <span class="doccomment">/// A tuple type: `(A, B, C, String)`.</span> |
| <span class="ident">Tuple</span>(<span class="ident">TypeTuple</span>), |
| |
| <span class="doccomment">/// Tokens in type position not interpreted by Syn.</span> |
| <span class="ident">Verbatim</span>(<span class="ident">TokenStream</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">// Type::Array(e) => {...}</span> |
| <span class="comment">// Type::BareFn(e) => {...}</span> |
| <span class="comment">// ...</span> |
| <span class="comment">// Type::Verbatim(e) => {...}</span> |
| <span class="comment">//</span> |
| <span class="comment">// #[cfg(test)]</span> |
| <span class="comment">// Type::__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, Type 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 fixed size array type: `[T; n]`.</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">TypeArray</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">elem</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">Type</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">Expr</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A bare function type: `fn(usize) -> bool`.</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">TypeBareFn</span> { |
| <span class="kw">pub</span> <span class="ident">lifetimes</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">BoundLifetimes</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">unsafety</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">unsafe</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">abi</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Abi</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">fn_token</span>: <span class="macro">Token!</span>[<span class="kw">fn</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">inputs</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">BareFnArg</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">variadic</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Variadic</span><span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">output</span>: <span class="ident">ReturnType</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A type contained within invisible delimiters.</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">TypeGroup</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">elem</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">/// An `impl Bound1 + Bound2 + Bound3` type where `Bound` is a trait or</span> |
| <span class="doccomment">/// a lifetime.</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">TypeImplTrait</span> { |
| <span class="kw">pub</span> <span class="ident">impl_token</span>: <span class="macro">Token!</span>[<span class="kw">impl</span>], |
| <span class="kw">pub</span> <span class="ident">bounds</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token!</span>[<span class="op">+</span>]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// Indication that a type should be inferred by the compiler: `_`.</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">TypeInfer</span> { |
| <span class="kw">pub</span> <span class="ident">underscore_token</span>: <span class="macro">Token!</span>[<span class="kw">_</span>], |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A macro in the type position.</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">TypeMacro</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">/// The never type: `!`.</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">TypeNever</span> { |
| <span class="kw">pub</span> <span class="ident">bang_token</span>: <span class="macro">Token!</span>[<span class="op">!</span>], |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A parenthesized type equivalent to the inner type.</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">TypeParen</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">elem</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 path like `std::slice::Iter`, optionally qualified with a</span> |
| <span class="doccomment">/// self-type as in `<Vec<T> as SomeTrait>::Associated`.</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">TypePath</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 raw pointer type: `*const T` or `*mut T`.</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">TypePtr</span> { |
| <span class="kw">pub</span> <span class="ident">star_token</span>: <span class="macro">Token!</span>[<span class="kw-2">*</span>], |
| <span class="kw">pub</span> <span class="ident">const_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">const</span>]<span class="op">></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">elem</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 reference type: `&'a T` or `&'a mut T`.</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">TypeReference</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">lifetime</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">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">elem</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 dynamically sized slice type: `[T]`.</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">TypeSlice</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">elem</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 trait object type `Bound1 + Bound2 + Bound3` where `Bound` is a</span> |
| <span class="doccomment">/// trait or a lifetime.</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">TypeTraitObject</span> { |
| <span class="kw">pub</span> <span class="ident">dyn_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">dyn</span>]<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">bounds</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token!</span>[<span class="op">+</span>]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// A tuple type: `(A, B, C, String)`.</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">TypeTuple</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">Type</span>, <span class="macro">Token!</span>[,]<span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// The binary interface of a function: `extern "C"`.</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">Abi</span> { |
| <span class="kw">pub</span> <span class="ident">extern_token</span>: <span class="macro">Token!</span>[<span class="kw">extern</span>], |
| <span class="kw">pub</span> <span class="ident">name</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">LitStr</span><span class="op">></span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// An argument in a function type: the `usize` in `fn(usize) -> bool`.</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">BareFnArg</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">name</span>: <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="ident">Ident</span>, <span class="macro">Token!</span>[:])<span class="op">></span>, |
| <span class="kw">pub</span> <span class="ident">ty</span>: <span class="ident">Type</span>, |
| } |
| } |
| |
| <span class="macro">ast_struct!</span> { |
| <span class="doccomment">/// The variadic argument of a foreign function.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```rust</span> |
| <span class="doccomment">/// # struct c_char;</span> |
| <span class="doccomment">/// # struct c_int;</span> |
| <span class="doccomment">/// #</span> |
| <span class="doccomment">/// extern "C" {</span> |
| <span class="doccomment">/// fn printf(format: *const c_char, ...) -> c_int;</span> |
| <span class="doccomment">/// // ^^^</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 `"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">Variadic</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">dots</span>: <span class="macro">Token!</span>[...], |
| } |
| } |
| |
| <span class="macro">ast_enum!</span> { |
| <span class="doccomment">/// Return type of a function signature.</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">ReturnType</span> { |
| <span class="doccomment">/// Return type is not specified.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Functions default to `()` and closures default to type inference.</span> |
| <span class="ident">Default</span>, |
| <span class="doccomment">/// A particular type is returned.</span> |
| <span class="ident">Type</span>(<span class="macro">Token!</span>[->], <span class="ident">Box</span><span class="op"><</span><span class="ident">Type</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">"parsing"</span>)]</span> |
| <span class="kw">pub</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>::ext::IdentExt</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="kw">use</span> <span class="ident">proc_macro2</span>::{<span class="ident">Punct</span>, <span class="ident">Spacing</span>, <span class="ident">TokenTree</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">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="ident">allow_plus</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">ambig_ty</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Type</span> { |
| <span class="doccomment">/// In some positions, types may not contain the `+` character, to</span> |
| <span class="doccomment">/// disambiguate them. For example in the expression `1 as T`, T may not</span> |
| <span class="doccomment">/// contain a `+` character.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This parser does not allow a `+`, while the default parser does.</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">pub</span> <span class="kw">fn</span> <span class="ident">without_plus</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_plus</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident">ambig_ty</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">ambig_ty</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_plus</span>: <span class="ident">bool</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Type</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">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="kw-2">mut</span> <span class="ident">group</span>: <span class="ident">TypeGroup</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="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="ident">Ident::peek_any</span>) { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Type::Path</span>(<span class="kw-2">mut</span> <span class="ident">ty</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="ident">group</span>.<span class="ident">elem</span> { |
| <span class="ident">Path::parse_rest</span>(<span class="ident">input</span>, <span class="kw-2">&mut</span> <span class="ident">ty</span>.<span class="ident">path</span>, <span class="bool-val">false</span>)<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Path</span>(<span class="ident">ty</span>)); |
| } <span class="kw">else</span> { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Path</span>(<span class="ident">TypePath</span> { |
| <span class="ident">qself</span>: <span class="prelude-val">Some</span>(<span class="ident">QSelf</span> { |
| <span class="ident">lt_token</span>: <span class="macro">Token!</span>[<span class="op"><</span>](<span class="ident">group</span>.<span class="ident">group_token</span>.<span class="ident">span</span>), |
| <span class="ident">position</span>: <span class="number">0</span>, |
| <span class="ident">as_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">gt_token</span>: <span class="macro">Token!</span>[<span class="op">></span>](<span class="ident">group</span>.<span class="ident">group_token</span>.<span class="ident">span</span>), |
| <span class="ident">ty</span>: <span class="ident">group</span>.<span class="ident">elem</span>, |
| }), |
| <span class="ident">path</span>: <span class="ident">Path::parse_helper</span>(<span class="ident">input</span>, <span class="bool-val">false</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="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="macro">Token!</span>[<span class="op"><</span>]) { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Type::Path</span>(<span class="kw-2">mut</span> <span class="ident">ty</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="ident">group</span>.<span class="ident">elem</span> { |
| <span class="kw">let</span> <span class="ident">arguments</span> <span class="op">=</span> <span class="kw-2">&mut</span> <span class="ident">ty</span>.<span class="ident">path</span>.<span class="ident">segments</span>.<span class="ident">last_mut</span>().<span class="ident">unwrap</span>().<span class="ident">arguments</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">PathArguments::None</span> <span class="op">=</span> <span class="ident">arguments</span> { |
| <span class="kw-2">*</span><span class="ident">arguments</span> <span class="op">=</span> <span class="ident">PathArguments::AngleBracketed</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="ident">Path::parse_rest</span>(<span class="ident">input</span>, <span class="kw-2">&mut</span> <span class="ident">ty</span>.<span class="ident">path</span>, <span class="bool-val">false</span>)<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Path</span>(<span class="ident">ty</span>)); |
| } <span class="kw">else</span> { |
| <span class="ident">group</span>.<span class="ident">elem</span> <span class="op">=</span> <span class="ident">Box::new</span>(<span class="ident">Type::Path</span>(<span class="ident">ty</span>)); |
| } |
| } |
| } |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Group</span>(<span class="ident">group</span>)); |
| } |
| |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">lifetimes</span> <span class="op">=</span> <span class="prelude-val">None</span>::<span class="op"><</span><span class="ident">BoundLifetimes</span><span class="op">></span>; |
| <span class="kw">let</span> <span class="kw-2">mut</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="kw">for</span>]) { |
| <span class="ident">lifetimes</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</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="op">!</span><span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">fn</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">unsafe</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">extern</span>]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">lookahead</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">lookahead</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">lookahead</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">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</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">dyn</span>]) |
| { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>()); |
| } |
| } |
| |
| <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</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">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">Type::Tuple</span>(<span class="ident">TypeTuple</span> { |
| <span class="ident">paren_token</span>, |
| <span class="ident">elems</span>: <span class="ident">Punctuated::new</span>(), |
| })); |
| } |
| <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</span>) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Paren</span>(<span class="ident">TypeParen</span> { |
| <span class="ident">paren_token</span>, |
| <span class="ident">elem</span>: <span class="ident">Box::new</span>(<span class="ident">Type::TraitObject</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">peek</span>(<span class="macro">Token!</span>[<span class="question-mark">?</span>]) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::TraitObject</span>(<span class="ident">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">bounds</span>: { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bounds</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">TypeParamBound::Trait</span>(<span class="ident">TraitBound</span> { |
| <span class="ident">paren_token</span>: <span class="prelude-val">Some</span>(<span class="ident">paren_token</span>), |
| ..<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> |
| })); |
| <span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">plus</span>) <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> { |
| <span class="ident">bounds</span>.<span class="ident">push_punct</span>(<span class="ident">plus</span>); |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| } |
| <span class="ident">bounds</span> |
| }, |
| })); |
| } |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">first</span>: <span class="ident">Type</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">peek</span>(<span class="macro">Token!</span>[,]) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Tuple</span>(<span class="ident">TypeTuple</span> { |
| <span class="ident">paren_token</span>, |
| <span class="ident">elems</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="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="ident">elems</span>.<span class="ident">push_value</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="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| } |
| <span class="ident">elems</span> |
| }, |
| })); |
| } |
| <span class="kw">if</span> <span class="ident">allow_plus</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">loop</span> { |
| <span class="kw">let</span> <span class="ident">first</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">first</span> { |
| <span class="ident">Type::Path</span>(<span class="ident">TypePath</span> { <span class="ident">qself</span>: <span class="prelude-val">None</span>, <span class="ident">path</span> }) => { |
| <span class="ident">TypeParamBound::Trait</span>(<span class="ident">TraitBound</span> { |
| <span class="ident">paren_token</span>: <span class="prelude-val">Some</span>(<span class="ident">paren_token</span>), |
| <span class="ident">modifier</span>: <span class="ident">TraitBoundModifier::None</span>, |
| <span class="ident">lifetimes</span>: <span class="prelude-val">None</span>, |
| <span class="ident">path</span>, |
| }) |
| } |
| <span class="ident">Type::TraitObject</span>(<span class="ident">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">bounds</span>, |
| }) => { |
| <span class="kw">if</span> <span class="ident">bounds</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="ident">bounds</span>.<span class="ident">trailing_punct</span>() { |
| <span class="ident">first</span> <span class="op">=</span> <span class="ident">Type::TraitObject</span>(<span class="ident">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">bounds</span>, |
| }); |
| <span class="kw">break</span>; |
| } |
| <span class="kw">match</span> <span class="ident">bounds</span>.<span class="ident">into_iter</span>().<span class="ident">next</span>().<span class="ident">unwrap</span>() { |
| <span class="ident">TypeParamBound::Trait</span>(<span class="ident">trait_bound</span>) => { |
| <span class="ident">TypeParamBound::Trait</span>(<span class="ident">TraitBound</span> { |
| <span class="ident">paren_token</span>: <span class="prelude-val">Some</span>(<span class="ident">paren_token</span>), |
| ..<span class="ident">trait_bound</span> |
| }) |
| } |
| <span class="ident">other</span> @ <span class="ident">TypeParamBound::Lifetime</span>(<span class="kw">_</span>) => <span class="ident">other</span>, |
| } |
| } |
| <span class="kw">_</span> => <span class="kw">break</span>, |
| }; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::TraitObject</span>(<span class="ident">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">bounds</span>: { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bounds</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">first</span>); |
| <span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">plus</span>) <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> { |
| <span class="ident">bounds</span>.<span class="ident">push_punct</span>(<span class="ident">plus</span>); |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| } |
| <span class="ident">bounds</span> |
| }, |
| })); |
| } |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::Paren</span>(<span class="ident">TypeParen</span> { |
| <span class="ident">paren_token</span>, |
| <span class="ident">elem</span>: <span class="ident">Box::new</span>(<span class="ident">first</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">fn</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">unsafe</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">extern</span>]) |
| { |
| <span class="kw">let</span> <span class="ident">allow_mut_self</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">mut</span> <span class="ident">bare_fn</span>) <span class="op">=</span> <span class="ident">parse_bare_fn</span>(<span class="ident">input</span>, <span class="ident">allow_mut_self</span>)<span class="question-mark">?</span> { |
| <span class="ident">bare_fn</span>.<span class="ident">lifetimes</span> <span class="op">=</span> <span class="ident">lifetimes</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::BareFn</span>(<span class="ident">bare_fn</span>)) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::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="kw">if</span> <span class="ident">lookahead</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="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="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">crate</span>]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) |
| <span class="op">|</span><span class="op">|</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</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">dyn</span>]) { |
| <span class="kw">let</span> <span class="ident">trait_object</span> <span class="op">=</span> <span class="ident">TypeTraitObject::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>)<span class="question-mark">?</span>; |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::TraitObject</span>(<span class="ident">trait_object</span>)); |
| } |
| |
| <span class="kw">let</span> <span class="ident">ty</span>: <span class="ident">TypePath</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">ty</span>.<span class="ident">qself</span>.<span class="ident">is_some</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Type::Path</span>(<span class="ident">ty</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="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">ty</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">Type::Macro</span>(<span class="ident">TypeMacro</span> { |
| <span class="ident">mac</span>: <span class="ident">Macro</span> { |
| <span class="ident">path</span>: <span class="ident">ty</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">lifetimes</span>.<span class="ident">is_some</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">allow_plus</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">let</span> <span class="kw-2">mut</span> <span class="ident">bounds</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">TypeParamBound::Trait</span>(<span class="ident">TraitBound</span> { |
| <span class="ident">paren_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">modifier</span>: <span class="ident">TraitBoundModifier::None</span>, |
| <span class="ident">lifetimes</span>, |
| <span class="ident">path</span>: <span class="ident">ty</span>.<span class="ident">path</span>, |
| })); |
| <span class="kw">if</span> <span class="ident">allow_plus</span> { |
| <span class="kw">while</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op">+</span>]) { |
| <span class="ident">bounds</span>.<span class="ident">push_punct</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">if</span> <span class="op">!</span>(<span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Ident::peek_any</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="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</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">break</span>; |
| } |
| <span class="ident">bounds</span>.<span class="ident">push_value</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">Type::TraitObject</span>(<span class="ident">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="prelude-val">None</span>, |
| <span class="ident">bounds</span>, |
| })); |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::Path</span>(<span class="ident">ty</span>)) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">token::Bracket</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">elem</span>: <span class="ident">Type</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">peek</span>(<span class="macro">Token!</span>[;]) { |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::Array</span>(<span class="ident">TypeArray</span> { |
| <span class="ident">bracket_token</span>, |
| <span class="ident">elem</span>: <span class="ident">Box::new</span>(<span class="ident">elem</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="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Type::Slice</span>(<span class="ident">TypeSlice</span> { |
| <span class="ident">bracket_token</span>, |
| <span class="ident">elem</span>: <span class="ident">Box::new</span>(<span class="ident">elem</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-2">*</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Type::Ptr</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-2">&</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Type::Reference</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="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">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Type::Never</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">impl</span>]) { |
| <span class="ident">TypeImplTrait::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>).<span class="ident">map</span>(<span class="ident">Type::ImplTrait</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">_</span>]) { |
| <span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Type::Infer</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</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="ident">Type::TraitObject</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">TypeSlice</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">TypeSlice</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">elem</span>: <span class="ident">content</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">TypeArray</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">TypeArray</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">elem</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_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">TypePtr</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">star_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">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>(); |
| <span class="kw">let</span> (<span class="ident">const_token</span>, <span class="ident">mutability</span>) <span class="op">=</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</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="prelude-val">None</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-2">mut</span>]) { |
| (<span class="prelude-val">None</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="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">TypePtr</span> { |
| <span class="ident">star_token</span>, |
| <span class="ident">const_token</span>, |
| <span class="ident">mutability</span>, |
| <span class="ident">elem</span>: <span class="ident">Box::new</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="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">TypeReference</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">TypeReference</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">lifetime</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">mutability</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="comment">// & binds tighter than +, so we don't allow + here.</span> |
| <span class="ident">elem</span>: <span class="ident">Box::new</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="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">TypeBareFn</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_mut_self</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident">parse_bare_fn</span>(<span class="ident">input</span>, <span class="ident">allow_mut_self</span>).<span class="ident">map</span>(<span class="ident">Option::unwrap</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">parse_bare_fn</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_mut_self</span>: <span class="ident">bool</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">TypeBareFn</span><span class="op">></span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">args</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">variadic</span> <span class="op">=</span> <span class="prelude-val">None</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">has_mut_self</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| |
| <span class="kw">let</span> <span class="ident">bare_fn</span> <span class="op">=</span> <span class="ident">TypeBareFn</span> { |
| <span class="ident">lifetimes</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">unsafety</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">abi</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">fn_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">args</span> <span class="kw">in</span> <span class="ident">input</span>), |
| <span class="ident">inputs</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">while</span> <span class="op">!</span><span class="ident">args</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">let</span> <span class="ident">attrs</span> <span class="op">=</span> <span class="ident">args</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">if</span> <span class="ident">inputs</span>.<span class="ident">empty_or_trailing</span>() <span class="op">&&</span> <span class="ident">args</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[...]) { |
| <span class="ident">variadic</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Variadic</span> { |
| <span class="ident">attrs</span>, |
| <span class="ident">dots</span>: <span class="ident">args</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| }); |
| <span class="kw">break</span>; |
| } |
| |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">arg</span>) <span class="op">=</span> <span class="ident">parse_bare_fn_arg</span>(<span class="kw-2">&</span><span class="ident">args</span>, <span class="ident">allow_mut_self</span>)<span class="question-mark">?</span> { |
| <span class="ident">inputs</span>.<span class="ident">push_value</span>(<span class="ident">BareFnArg</span> { <span class="ident">attrs</span>, ..<span class="ident">arg</span> }); |
| } <span class="kw">else</span> { |
| <span class="ident">has_mut_self</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| } |
| <span class="kw">if</span> <span class="ident">args</span>.<span class="ident">is_empty</span>() { |
| <span class="kw">break</span>; |
| } |
| |
| <span class="ident">inputs</span>.<span class="ident">push_punct</span>(<span class="ident">args</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| } |
| |
| <span class="ident">inputs</span> |
| }, |
| <span class="ident">variadic</span>, |
| <span class="ident">output</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">ReturnType::without_plus</span>)<span class="question-mark">?</span>, |
| }; |
| |
| <span class="kw">if</span> <span class="ident">has_mut_self</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">bare_fn</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">TypeNever</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">TypeNever</span> { |
| <span class="ident">bang_token</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">TypeInfer</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">TypeInfer</span> { |
| <span class="ident">underscore_token</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">TypeTuple</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">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">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">TypeTuple</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">Type</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">TypeTuple</span> { |
| <span class="ident">paren_token</span>, |
| <span class="ident">elems</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="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() { |
| <span class="ident">elems</span>.<span class="ident">push_value</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="ident">elems</span>.<span class="ident">push_punct</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| } |
| <span class="ident">elems</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">TypeMacro</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">TypeMacro</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_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">TypePath</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">qself</span>, <span class="kw-2">mut</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">false</span>)<span class="question-mark">?</span>; |
| |
| <span class="kw">if</span> <span class="ident">path</span>.<span class="ident">segments</span>.<span class="ident">last</span>().<span class="ident">unwrap</span>().<span class="ident">arguments</span>.<span class="ident">is_empty</span>() |
| <span class="op">&&</span> (<span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</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">input</span>.<span class="ident">peek3</span>(<span class="ident">token::Paren</span>)) |
| { |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[::]<span class="op">></span><span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">args</span>: <span class="ident">ParenthesizedGenericArguments</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">parenthesized</span> <span class="op">=</span> <span class="ident">PathArguments::Parenthesized</span>(<span class="ident">args</span>); |
| <span class="ident">path</span>.<span class="ident">segments</span>.<span class="ident">last_mut</span>().<span class="ident">unwrap</span>().<span class="ident">arguments</span> <span class="op">=</span> <span class="ident">parenthesized</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="ident">TypePath</span> { <span class="ident">qself</span>, <span class="ident">path</span> }) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">ReturnType</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">pub</span> <span class="kw">fn</span> <span class="ident">without_plus</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_plus</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_plus</span>: <span class="ident">bool</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="macro">Token!</span>[->]) { |
| <span class="kw">let</span> <span class="ident">arrow</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">ambig_ty</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">ReturnType::Type</span>(<span class="ident">arrow</span>, <span class="ident">Box::new</span>(<span class="ident">ty</span>))) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">ReturnType::Default</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">ReturnType</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_plus</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</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">TypeTraitObject</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_plus</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">at_least_one_type</span>(<span class="ident">bounds</span>: <span class="kw-2">&</span><span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token!</span>[<span class="op">+</span>]<span class="op">></span>) -> <span class="ident">bool</span> { |
| <span class="kw">for</span> <span class="ident">bound</span> <span class="kw">in</span> <span class="ident">bounds</span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">TypeParamBound::Trait</span>(<span class="kw">_</span>) <span class="op">=</span> <span class="kw-2">*</span><span class="ident">bound</span> { |
| <span class="kw">return</span> <span class="bool-val">true</span>; |
| } |
| } |
| <span class="bool-val">false</span> |
| } |
| |
| <span class="kw">impl</span> <span class="ident">TypeTraitObject</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">pub</span> <span class="kw">fn</span> <span class="ident">without_plus</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_plus</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| |
| <span class="comment">// Only allow multiple trait references if allow_plus is true.</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_plus</span>: <span class="ident">bool</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">TypeTraitObject</span> { |
| <span class="ident">dyn_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">bounds</span>: <span class="ident"><span class="self">Self</span>::parse_bounds</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>)<span class="question-mark">?</span>, |
| }) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">parse_bounds</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="ident">allow_plus</span>: <span class="ident">bool</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token!</span>[<span class="op">+</span>]<span class="op">></span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bounds</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>(); |
| <span class="kw">loop</span> { |
| <span class="ident">bounds</span>.<span class="ident">push_value</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">if</span> <span class="op">!</span>(<span class="ident">allow_plus</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">break</span>; |
| } |
| <span class="ident">bounds</span>.<span class="ident">push_punct</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>); |
| <span class="kw">if</span> <span class="op">!</span>(<span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Ident::peek_any</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="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</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">break</span>; |
| } |
| } |
| <span class="comment">// Just lifetimes like `'a + 'b` is not a TraitObject.</span> |
| <span class="kw">if</span> <span class="op">!</span><span class="ident">at_least_one_type</span>(<span class="kw-2">&</span><span class="ident">bounds</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 at least one type"</span>)); |
| } |
| <span class="prelude-val">Ok</span>(<span class="ident">bounds</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">TypeImplTrait</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_plus</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">TypeImplTrait</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">pub</span> <span class="kw">fn</span> <span class="ident">without_plus</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_plus</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_plus</span>: <span class="ident">bool</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">TypeImplTrait</span> { |
| <span class="ident">impl_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">bounds</span>: <span class="ident">TypeTraitObject::parse_bounds</span>(<span class="ident">input</span>, <span class="ident">allow_plus</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">TypeGroup</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">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">TypeGroup</span> { |
| <span class="ident">group_token</span>: <span class="ident">group</span>.<span class="ident">token</span>, |
| <span class="ident">elem</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_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">TypeParen</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_plus</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident"><span class="self">Self</span>::parse</span>(<span class="ident">input</span>, <span class="ident">allow_plus</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">TypeParen</span> { |
| <span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>, <span class="ident">allow_plus</span>: <span class="ident">bool</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">TypeParen</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">elem</span>: <span class="ident">Box::new</span>(<span class="ident">ambig_ty</span>(<span class="kw-2">&</span><span class="ident">content</span>, <span class="ident">allow_plus</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">BareFnArg</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_mut_self</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident">parse_bare_fn_arg</span>(<span class="ident">input</span>, <span class="ident">allow_mut_self</span>).<span class="ident">map</span>(<span class="ident">Option::unwrap</span>) |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">parse_bare_fn_arg</span>( |
| <span class="ident">input</span>: <span class="ident">ParseStream</span>, |
| <span class="kw-2">mut</span> <span class="ident">allow_mut_self</span>: <span class="ident">bool</span>, |
| ) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">BareFnArg</span><span class="op">></span><span class="op">></span> { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">has_mut_self</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="kw">let</span> <span class="ident">arg</span> <span class="op">=</span> <span class="ident">BareFnArg</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">name</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="kw">_</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="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="kw">let</span> <span class="ident">name</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Ident::parse_any</span>)<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">colon</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">Some</span>((<span class="ident">name</span>, <span class="ident">colon</span>)) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">allow_mut_self</span> |
| <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw-2">mut</span>]) |
| <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="self">self</span>]) |
| <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="macro">Token!</span>[:]) |
| <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek3</span>(<span class="macro">Token!</span>[::]) |
| { |
| <span class="ident">has_mut_self</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">allow_mut_self</span> <span class="op">=</span> <span class="bool-val">false</span>; |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="kw-2">mut</span>]<span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="self">self</span>]<span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[:]<span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="prelude-val">None</span> |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| } |
| }, |
| <span class="ident">ty</span>: <span class="kw">if</span> <span class="op">!</span><span class="ident">has_mut_self</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">dot3</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[...]<span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="kw">let</span> <span class="ident">args</span> <span class="op">=</span> <span class="macro">vec!</span>[ |
| <span class="ident">TokenTree::Punct</span>(<span class="ident">Punct::new</span>(<span class="string">'.'</span>, <span class="ident">Spacing::Joint</span>)), |
| <span class="ident">TokenTree::Punct</span>(<span class="ident">Punct::new</span>(<span class="string">'.'</span>, <span class="ident">Spacing::Joint</span>)), |
| <span class="ident">TokenTree::Punct</span>(<span class="ident">Punct::new</span>(<span class="string">'.'</span>, <span class="ident">Spacing::Alone</span>)), |
| ]; |
| <span class="kw">let</span> <span class="ident">tokens</span>: <span class="ident">TokenStream</span> <span class="op">=</span> <span class="ident">args</span> |
| .<span class="ident">into_iter</span>() |
| .<span class="ident">zip</span>(<span class="kw-2">&</span><span class="ident">dot3</span>.<span class="ident">spans</span>) |
| .<span class="ident">map</span>(<span class="op">|</span>(<span class="kw-2">mut</span> <span class="ident">arg</span>, <span class="ident">span</span>)<span class="op">|</span> { |
| <span class="ident">arg</span>.<span class="ident">set_span</span>(<span class="kw-2">*</span><span class="ident">span</span>); |
| <span class="ident">arg</span> |
| }) |
| .<span class="ident">collect</span>(); |
| <span class="ident">Type::Verbatim</span>(<span class="ident">tokens</span>) |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="ident">allow_mut_self</span> <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw-2">mut</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="macro">Token!</span>[<span class="self">self</span>]) { |
| <span class="ident">has_mut_self</span> <span class="op">=</span> <span class="bool-val">true</span>; |
| <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="kw-2">mut</span>]<span class="op">></span>()<span class="question-mark">?</span>; |
| <span class="ident">Type::Path</span>(<span class="ident">TypePath</span> { |
| <span class="ident">qself</span>: <span class="prelude-val">None</span>, |
| <span class="ident">path</span>: <span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="self">self</span>]<span class="op">></span>()<span class="question-mark">?</span>.<span class="ident">into</span>(), |
| }) |
| } <span class="kw">else</span> { |
| <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span> |
| }, |
| }; |
| |
| <span class="kw">if</span> <span class="ident">has_mut_self</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">arg</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">Abi</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">Abi</span> { |
| <span class="ident">extern_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>, |
| <span class="ident">name</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="prelude-ty">Option</span><span class="op"><</span><span class="ident">Abi</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="macro">Token!</span>[<span class="kw">extern</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">"printing"</span>)]</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="kw">use</span> <span class="ident"><span class="kw">crate</span>::attr::FilterAttrs</span>; |
| <span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::print::TokensOrDefault</span>; |
| <span class="kw">use</span> <span class="ident">proc_macro2::TokenStream</span>; |
| <span class="kw">use</span> <span class="ident">quote</span>::{<span class="ident">ToTokens</span>, <span class="ident">TokenStreamExt</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">TypeSlice</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">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">elem</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">TypeArray</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">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">elem</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_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">TypePtr</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">star_token</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">mutability</span> { |
| <span class="prelude-val">Some</span>(<span class="ident">tok</span>) => <span class="ident">tok</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>), |
| <span class="prelude-val">None</span> => { |
| <span class="ident">TokensOrDefault</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">const_token</span>).<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| <span class="self">self</span>.<span class="ident">elem</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">TypeReference</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">and_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">lifetime</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">elem</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">TypeBareFn</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">lifetimes</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">unsafety</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">abi</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">fn_token</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">inputs</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">variadic</span>) <span class="op">=</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">variadic</span> { |
| <span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">inputs</span>.<span class="ident">empty_or_trailing</span>() { |
| <span class="kw">let</span> <span class="ident">span</span> <span class="op">=</span> <span class="ident">variadic</span>.<span class="ident">dots</span>.<span class="ident">spans</span>[<span class="number">0</span>]; |
| <span class="macro">Token!</span>[,](<span class="ident">span</span>).<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| <span class="ident">variadic</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="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">TypeNever</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">bang_token</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">TypeTuple</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">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">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">TypePath</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">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_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">TypeTraitObject</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">dyn_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">bounds</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">TypeImplTrait</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">impl_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">bounds</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">TypeGroup</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">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">elem</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">TypeParen</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">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">elem</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">TypeInfer</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">underscore_token</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">TypeMacro</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">mac</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">ReturnType</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">ReturnType::Default</span> => {} |
| <span class="ident">ReturnType::Type</span>(<span class="ident">arrow</span>, <span class="ident">ty</span>) => { |
| <span class="ident">arrow</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">ty</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">BareFnArg</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="self">self</span>.<span class="ident">attrs</span>.<span class="ident">outer</span>()); |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">name</span>, <span class="ident">colon</span>)) <span class="op">=</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">name</span> { |
| <span class="ident">name</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="ident">colon</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_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">Variadic</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="self">self</span>.<span class="ident">attrs</span>.<span class="ident">outer</span>()); |
| <span class="self">self</span>.<span class="ident">dots</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">Abi</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">extern_token</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| <span class="self">self</span>.<span class="ident">name</span>.<span class="ident">to_tokens</span>(<span class="ident">tokens</span>); |
| } |
| } |
| } |
| </code></pre></div> |
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