mentat/docs/apis/rust/quick_error/trait.ResultExt.html
2018-06-22 12:08:32 +01:00

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<p class='location'>Trait ResultExt</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.context">context</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-ResultExt%3CT%2C%20E%3E">Result&lt;T, E&gt;</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>quick_error</a></p><script>window.sidebarCurrent = {name: 'ResultExt', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<section id='main' class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>quick_error</a>::<wbr><a class="trait" href=''>ResultExt</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../src/quick_error/lib.rs.html#1008-1016' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait ResultExt&lt;T, E&gt; {
fn <a href='#tymethod.context' class='fnname'>context</a>&lt;X&gt;(self, x: X) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, <a class="struct" href="../quick_error/struct.Context.html" title="struct quick_error::Context">Context</a>&lt;X, E&gt;&gt;;
}</pre></div><div class='docblock'><p>Result extension trait adding a <code>context</code> method</p>
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<h3 id='tymethod.context' class='method'><span id='context.v' class='invisible'><code>fn <a href='#tymethod.context' class='fnname'>context</a>&lt;X&gt;(self, x: X) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, <a class="struct" href="../quick_error/struct.Context.html" title="struct quick_error::Context">Context</a>&lt;X, E&gt;&gt;</code></span></h3><div class='docblock'><p>The method is use to add context information to current operation</p>
<p>The context data is then used in error constructor to store additional
information within error. For example, you may add a filename as a
context for file operation. See crate documentation for the actual
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<h3 id='impl-ResultExt%3CT%2C%20E%3E' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;T, E&gt; <a class="trait" href="../quick_error/trait.ResultExt.html" title="trait quick_error::ResultExt">ResultExt</a>&lt;T, E&gt; for <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, E&gt;</code><a href='#impl-ResultExt%3CT%2C%20E%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/quick_error/lib.rs.html#1018-1022' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><span class='docblock autohide'><div class='impl-items'><h4 id='method.context' class="method"><span id='context.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.context' class='fnname'>context</a>&lt;X&gt;(self, x: X) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, <a class="struct" href="../quick_error/struct.Context.html" title="struct quick_error::Context">Context</a>&lt;X, E&gt;&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/quick_error/lib.rs.html#1019-1021' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4></div></span>
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