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<title>backtrace::Backtrace - Rust</title>
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<div class="sidebar-menu">☰</div>
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<p class='location'>Struct Backtrace</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a><a href="#method.new_unresolved">new_unresolved</a><a href="#method.frames">frames</a><a href="#method.resolve">resolve</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-From%3CVec%3CBacktraceFrame%3E%3E">From<Vec<BacktraceFrame>></a><a href="#impl-Into%3CVec%3CBacktraceFrame%3E%3E">Into<Vec<BacktraceFrame>></a><a href="#impl-Debug">Debug</a><a href="#impl-Default">Default</a></div></div><p class='location'><a href='index.html'>backtrace</a></p><script>window.sidebarCurrent = {name: 'Backtrace', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>backtrace</a>::<wbr><a class="struct" href=''>Backtrace</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../src/backtrace/capture.rs.html#15-17' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct Backtrace { /* fields omitted */ }</pre><div class='docblock'><p>Representation of an owned and self-contained backtrace.</p>
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<p>This structure can be used to capture a backtrace at various points in a
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program and later used to inspect what the backtrace was at that time.</p>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#46-128' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>pub fn <a href='#method.new' class='fnname'>new</a>() -> <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#62-66' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Captures a backtrace at the callsite of this function, returning an
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owned representation.</p>
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<p>This function is useful for representing a backtrace as an object in
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Rust. This returned value can be sent across threads and printed
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elsewhere, and the purpose of this value is to be entirely self
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contained.</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">backtrace</span>::<span class="ident">Backtrace</span>;
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<span class="kw">let</span> <span class="ident">current_backtrace</span> <span class="op">=</span> <span class="ident">Backtrace</span>::<span class="ident">new</span>();</pre>
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</div><h4 id='method.new_unresolved' class="method"><span id='new_unresolved.v' class='invisible'><code>pub fn <a href='#method.new_unresolved' class='fnname'>new_unresolved</a>() -> <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#86-98' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Similar to <code>new</code> except that this does not resolve any symbols, this
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simply captures the backtrace as a list of addresses.</p>
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<p>At a later time the <code>resolve</code> function can be called to resolve this
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backtrace's symbols into readable names. This function exists because
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the resolution process can sometimes take a significant amount of time
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whereas any one backtrace may only be rarely printed.</p>
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<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">backtrace</span>::<span class="ident">Backtrace</span>;
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current_backtrace</span> <span class="op">=</span> <span class="ident">Backtrace</span>::<span class="ident">new_unresolved</span>();
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<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">current_backtrace</span>); <span class="comment">// no symbol names</span>
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<span class="ident">current_backtrace</span>.<span class="ident">resolve</span>();
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<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">current_backtrace</span>); <span class="comment">// symbol names now present</span></pre>
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</div><h4 id='method.frames' class="method"><span id='frames.v' class='invisible'><code>pub fn <a href='#method.frames' class='fnname'>frames</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="struct" href="../backtrace/struct.BacktraceFrame.html" title="struct backtrace::BacktraceFrame">BacktraceFrame</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#105-107' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns the frames from when this backtrace was captured.</p>
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<p>The first entry of this slice is likely the function <code>Backtrace::new</code>,
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and the last frame is likely something about how this thread or the main
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function started.</p>
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</div><h4 id='method.resolve' class="method"><span id='resolve.v' class='invisible'><code>pub fn <a href='#method.resolve' class='fnname'>resolve</a>(&mut self)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#114-127' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>If this backtrace was created from <code>new_unresolved</code> then this function
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will resolve all addresses in the backtrace to their symbolic names.</p>
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<p>If this backtrace has been previously resolved or was created through
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<code>new</code>, this function does nothing.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#12' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#12' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></div><h3 id='impl-From%3CVec%3CBacktraceFrame%3E%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../backtrace/struct.BacktraceFrame.html" title="struct backtrace::BacktraceFrame">BacktraceFrame</a>>> for <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl-From%3CVec%3CBacktraceFrame%3E%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#130-136' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.from' class="method"><span id='from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(frames: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../backtrace/struct.BacktraceFrame.html" title="struct backtrace::BacktraceFrame">BacktraceFrame</a>>) -> Self</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#131-135' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-Into%3CVec%3CBacktraceFrame%3E%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../backtrace/struct.BacktraceFrame.html" title="struct backtrace::BacktraceFrame">BacktraceFrame</a>>> for <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl-Into%3CVec%3CBacktraceFrame%3E%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#138-142' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.into' class="method"><span id='into.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../backtrace/struct.BacktraceFrame.html" title="struct backtrace::BacktraceFrame">BacktraceFrame</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#139-141' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#191-231' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, fmt: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#192-230' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-Default' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code><a href='#impl-Default' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#233-237' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.default' class="method"><span id='default.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default' class='fnname'>default</a>() -> <a class="struct" href="../backtrace/struct.Backtrace.html" title="struct backtrace::Backtrace">Backtrace</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/backtrace/capture.rs.html#234-236' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns the "default value" for a type. <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default">Read more</a></p>
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