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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Provides the `wrap_err` method for `Result`."><title>WrapErr in eyre - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="eyre" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../eyre/index.html">eyre</a><span class="version">0.6.12</span></h2></div><h2 class="location"><a href="#">WrapErr</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.context">context</a></li><li><a href="#tymethod.with_context">with_context</a></li><li><a href="#tymethod.wrap_err">wrap_err</a></li><li><a href="#tymethod.wrap_err_with">wrap_err_with</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-WrapErr%3CT,+E%3E-for-Result%3CT,+E%3E">Result<T, E></a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In crate eyre</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../eyre/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Trait <a href="index.html">eyre</a>::<wbr><a class="trait" href="#">WrapErr</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/eyre/lib.rs.html#1099-1126">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub trait WrapErr<T, E>: Sealed {
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// Required methods
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fn <a href="#tymethod.wrap_err" class="fn">wrap_err</a><D>(self, msg: D) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>>
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<span class="where">where D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static</span>;
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<span class="item-spacer"></span> fn <a href="#tymethod.wrap_err_with" class="fn">wrap_err_with</a><D, F>(self, f: F) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>>
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<span class="where">where D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D</span>;
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<span class="item-spacer"></span> fn <a href="#tymethod.context" class="fn">context</a><D>(self, msg: D) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>>
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<span class="where">where D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static</span>;
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<span class="item-spacer"></span> fn <a href="#tymethod.with_context" class="fn">with_context</a><D, F>(self, f: F) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>>
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<span class="where">where D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D</span>;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Provides the <code>wrap_err</code> method for <code>Result</code>.</p>
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<p>This trait is sealed and cannot be implemented for types outside of
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<code>eyre</code>.</p>
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<h2 id="example"><a href="#example">Example</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>eyre::{WrapErr, <span class="prelude-ty">Result</span>};
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<span class="kw">use </span>std::fs;
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<span class="kw">use </span>std::path::PathBuf;
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<span class="kw">pub struct </span>ImportantThing {
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path: PathBuf,
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}
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<span class="kw">impl </span>ImportantThing {
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<span class="kw">pub fn </span>detach(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><()> {...}
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}
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<span class="kw">pub fn </span>do_it(<span class="kw-2">mut </span>it: ImportantThing) -> <span class="prelude-ty">Result</span><Vec<u8>> {
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it.detach().wrap_err(<span class="string">"Failed to detach the important thing"</span>)<span class="question-mark">?</span>;
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<span class="kw">let </span>path = <span class="kw-2">&</span>it.path;
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<span class="kw">let </span>content = fs::read(path)
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.wrap_err_with(|| <span class="macro">format!</span>(<span class="string">"Failed to read instrs from {}"</span>, path.display()))<span class="question-mark">?</span>;
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<span class="prelude-val">Ok</span>(content)
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}</code></pre></div>
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<p>When printed, the outermost error would be printed first and the lower
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level underlying causes would be enumerated below.</p>
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<div class="example-wrap"><pre class="language-console"><code>Error: Failed to read instrs from ./path/to/instrs.json
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Caused by:
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No such file or directory (os error 2)
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</code></pre></div><h2 id="wrapping-types-that-dont-impl-error-eg-str-and-boxdyn-error"><a href="#wrapping-types-that-dont-impl-error-eg-str-and-boxdyn-error">Wrapping Types That Don’t impl <code>Error</code> (e.g. <code>&str</code> and <code>Box<dyn Error></code>)</a></h2>
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<p>Due to restrictions for coherence <code>Report</code> cannot impl <code>From</code> for types that don’t impl
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<code>Error</code>. Attempts to do so will give “this type might implement Error in the future” as an
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error. As such, <code>wrap_err</code>, which uses <code>From</code> under the hood, cannot be used to wrap these
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types. Instead we encourage you to use the combinators provided for <code>Result</code> in <code>std</code>/<code>core</code>.</p>
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<p>For example, instead of this:</p>
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<div class="example-wrap compile_fail"><a href="#" class="tooltip" title="This example deliberately fails to compile">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
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<span class="kw">use </span>eyre::{WrapErr, Report};
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<span class="kw">fn </span>wrap_example(err: <span class="prelude-ty">Result</span><(), Box<<span class="kw">dyn </span>Error + Send + Sync + <span class="lifetime">'static</span>>>) -> <span class="prelude-ty">Result</span><(), Report> {
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err.wrap_err(<span class="string">"saw a downstream error"</span>)
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}</code></pre></div>
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<p>We encourage you to write this:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
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<span class="kw">use </span>eyre::{WrapErr, Report, eyre};
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<span class="kw">fn </span>wrap_example(err: <span class="prelude-ty">Result</span><(), Box<<span class="kw">dyn </span>Error + Send + Sync + <span class="lifetime">'static</span>>>) -> <span class="prelude-ty">Result</span><(), Report> {
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err.map_err(|e| <span class="macro">eyre!</span>(e)).wrap_err(<span class="string">"saw a downstream error"</span>)
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}</code></pre></div>
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<h2 id="effect-on-downcasting"><a href="#effect-on-downcasting">Effect on downcasting</a></h2>
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<p>After attaching a message of type <code>D</code> onto an error of type <code>E</code>, the resulting
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<code>eyre::Report</code> may be downcast to <code>D</code> <strong>or</strong> to <code>E</code>.</p>
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<p>That is, in codebases that rely on downcasting, Eyre’s wrap_err supports
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both of the following use cases:</p>
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<ul>
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<li>
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<p><strong>Attaching messages whose type is insignificant onto errors whose type
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is used in downcasts.</strong></p>
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<p>In other error libraries whose wrap_err is not designed this way, it can
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be risky to introduce messages to existing code because new message might
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break existing working downcasts. In Eyre, any downcast that worked
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before adding the message will continue to work after you add a message, so
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you should freely wrap errors wherever it would be helpful.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>eyre::{WrapErr, <span class="prelude-ty">Result</span>};
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<span class="kw">fn </span>do_it() -> <span class="prelude-ty">Result</span><()> {
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helper().wrap_err(<span class="string">"Failed to complete the work"</span>)<span class="question-mark">?</span>;
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...
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}
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<span class="kw">fn </span>main() {
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<span class="kw">let </span>err = do_it().unwrap_err();
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<span class="kw">if let </span><span class="prelude-val">Some</span>(e) = err.downcast_ref::<SuspiciousError>() {
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<span class="comment">// If helper() returned SuspiciousError, this downcast will
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// correctly succeed even with the message in between.
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</span>}
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}</code></pre></div>
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</li>
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<li>
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<p><strong>Attaching message whose type is used in downcasts onto errors whose
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type is insignificant.</strong></p>
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<p>Some codebases prefer to use machine-readable messages to categorize
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lower level errors in a way that will be actionable to higher levels of
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the application.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>eyre::{WrapErr, <span class="prelude-ty">Result</span>};
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<span class="kw">fn </span>do_it() -> <span class="prelude-ty">Result</span><()> {
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helper().wrap_err(HelperFailed)<span class="question-mark">?</span>;
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...
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}
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<span class="kw">fn </span>main() {
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<span class="kw">let </span>err = do_it().unwrap_err();
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<span class="kw">if let </span><span class="prelude-val">Some</span>(e) = err.downcast_ref::<HelperFailed>() {
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<span class="comment">// If helper failed, this downcast will succeed because
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// HelperFailed is the message that has been attached to
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// that error.
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</span>}
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}</code></pre></div>
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</li>
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</ul>
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<h2 id="wrap_err-vs-wrap_err_with"><a href="#wrap_err-vs-wrap_err_with"><code>wrap_err</code> vs <code>wrap_err_with</code></a></h2>
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<p><code>wrap_err</code> incurs a runtime cost even in the non-error case because it requires eagerly
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constructing the error object. <code>wrap_err_with</code> avoids this cost through lazy evaluation. This
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cost is proportional to the cost of the currently installed <a href="trait.EyreHandler.html" title="trait eyre::EyreHandler"><code>EyreHandler</code></a>’s creation step.
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<code>wrap_err</code> is useful in cases where an constructed error object already exists.</p>
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</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.wrap_err" class="method"><a class="src rightside" href="../src/eyre/lib.rs.html#1102-1104">source</a><h4 class="code-header">fn <a href="#tymethod.wrap_err" class="fn">wrap_err</a><D>(self, msg: D) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Wrap the error value with a new adhoc error</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.wrap_err_with" class="method"><a class="src rightside" href="../src/eyre/lib.rs.html#1109-1112">source</a><h4 class="code-header">fn <a href="#tymethod.wrap_err_with" class="fn">wrap_err_with</a><D, F>(self, f: F) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D,</div></h4></section></summary><div class="docblock"><p>Wrap the error value with a new adhoc error that is evaluated lazily
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only once an error does occur.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.context" class="method"><a class="src rightside" href="../src/eyre/lib.rs.html#1116-1118">source</a><h4 class="code-header">fn <a href="#tymethod.context" class="fn">context</a><D>(self, msg: D) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Compatibility re-export of wrap_err for interop with <code>anyhow</code></p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.with_context" class="method"><a class="src rightside" href="../src/eyre/lib.rs.html#1122-1125">source</a><h4 class="code-header">fn <a href="#tymethod.with_context" class="fn">with_context</a><D, F>(self, f: F) -> <a class="type" href="type.Result.html" title="type eyre::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D,</div></h4></section></summary><div class="docblock"><p>Compatibility re-export of wrap_err_with for interop with <code>anyhow</code></p>
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</div></details></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.76.0/reference/items/traits.html#object-safety">object safe</a>.</div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-WrapErr%3CT,+E%3E-for-Result%3CT,+E%3E" class="impl"><a class="src rightside" href="../src/eyre/context.rs.html#40-79">source</a><a href="#impl-WrapErr%3CT,+E%3E-for-Result%3CT,+E%3E" class="anchor">§</a><h3 class="code-header">impl<T, E> <a class="trait" href="trait.WrapErr.html" title="trait eyre::WrapErr">WrapErr</a><T, E> for <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, E><div class="where">where
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E: StdError + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,</div></h3></section></summary><div class="impl-items"><section id="method.wrap_err" class="method trait-impl"><a class="src rightside" href="../src/eyre/context.rs.html#44-52">source</a><a href="#method.wrap_err" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.wrap_err" class="fn">wrap_err</a><D>(self, msg: D) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,</div></h4></section><section id="method.wrap_err_with" class="method trait-impl"><a class="src rightside" href="../src/eyre/context.rs.html#54-63">source</a><a href="#method.wrap_err_with" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.wrap_err_with" class="fn">wrap_err_with</a><D, F>(self, msg: F) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D,</div></h4></section><section id="method.context" class="method trait-impl"><a class="src rightside" href="../src/eyre/context.rs.html#65-70">source</a><a href="#method.context" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.context" class="fn">context</a><D>(self, msg: D) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,</div></h4></section><section id="method.with_context" class="method trait-impl"><a class="src rightside" href="../src/eyre/context.rs.html#72-78">source</a><a href="#method.with_context" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.with_context" class="fn">with_context</a><D, F>(self, msg: F) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="struct.Report.html" title="struct eyre::Report">Report</a>><div class="where">where
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D: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -> D,</div></h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../trait.impl/eyre/trait.WrapErr.js" data-ignore-extern-crates="core" async></script></section></div></main></body></html>
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