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| <h1 class='fqn'><span class='in-band'>Macro <a href='index.html'>tokio_core</a>::<wbr><a class="macro" href=''>try_nb</a></span><span class='out-of-band'><span id='render-detail'> |
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| <pre class="rust macro"> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">try_nb</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">e</span>:<span class="ident">expr</span>) <span class="op">=></span> { ... }; |
| }</pre> |
| <div class='docblock'><p>A convenience macro for working with <code>io::Result<T></code> from the <code>Read</code> and |
| <code>Write</code> traits.</p> |
| <p>This macro takes <code>io::Result<T></code> as input, and returns <code>T</code> as the output. If |
| the input type is of the <code>Err</code> variant, then <code>Poll::NotReady</code> is returned if |
| it indicates <code>WouldBlock</code> or otherwise <code>Err</code> is returned.</p> |
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