<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="This is an error that could occur during proving or circuit synthesis."><metaname="keywords"content="rust, rustlang, rust-lang, Error"><title>Error in halo2_proofs::plonk - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Regular.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Medium.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Bold.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Semibold.ttf.woff2"><linkrel="stylesheet"type="text/css"href="../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../ayu.css"disabled><linkrel="stylesheet"type="text/css"href="../../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../../light.css"id="themeStyle"><scriptid="default-settings"></script><scriptsrc="../../storage.js"></script><scriptsrc="../../crates.js"></script><scriptdefersrc="../../main.js"></script>
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</a><h2class="location"><ahref="#">Enum Error</a></h2><divclass="sidebar-elems"><divclass="block items"><h3class="sidebar-title"><ahref="#variants">Variants</a></h3><divclass="sidebar-links"><ahref="#variant.BoundsFailure">BoundsFailure</a><ahref="#variant.ColumnNotInPermutation">ColumnNotInPermutation</a><ahref="#variant.ConstraintSystemFailure">ConstraintSystemFailure</a><ahref="#variant.InstanceTooLarge">InstanceTooLarge</a><ahref="#variant.InvalidInstances">InvalidInstances</a><ahref="#variant.NotEnoughColumnsForConstants">NotEnoughColumnsForConstants</a><ahref="#variant.NotEnoughRowsAvailable">NotEnoughRowsAvailable</a><ahref="#variant.Opening">Opening</a><ahref="#variant.Synthesis">Synthesis</a><ahref="#variant.Transcript">Transcript</a></div><h3class="sidebar-title"><ahref="#implementations">Associated Constants</a></h3><divclass="sidebar-links"><ahref="#associatedconstant.ALIGN">ALIGN</a></div><h3class="sidebar-title"><ahref="#trait-implementations">Trait Implementations</a></h3><divclass="sidebar-links"><ahref="#impl-Debug">Debug</a><ahref="#impl-Display">Display</a><ahref="#impl-Error">Error</a><ahref="#impl-From%3CError%3E">From<Error></a></div><h3class="sidebar-title"><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">!RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">!UnwindSafe</a></div><h3class="sidebar-title"><ahref="#blanket-implementations">Blanket Implementations</a></h3><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-Conv">Conv</a><ahref="#impl-FmtForward">FmtForward</a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-Pipe">Pipe</a><ahref="#impl-Pointable">Pointable</a><ahref="#impl-Tap">Tap</a><ahref="#impl-ToString">ToString</a><ahref="#impl-TryConv">TryConv</a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a><ahref="#impl-VZip%3CV%3E">VZip<V></a></div></div><h2class="location">Other items in<br><ahref="../index.html">halo2_proofs</a>::<wbr><ahref="index.html">plonk</a></h2><divid="sidebar-vars"data-name="Error"data-ty="enum"data-relpath=""></div><scriptdefersrc="sidebar-items.js"></script></div></nav><main><divclass="width-limiter"><divclass="sub-container"><aclass="sub-logo-container"href="../../halo2_proofs/index.html"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></a><navclass="sub"><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"aria-haspopup="menu"title="themes"><imgwidth="18"height="18"alt="Pick another theme!"src="../../brush.svg"></button><divid="theme-choices"role="menu"></div></div><formclass="search-form"><divclass="search-container"><div>
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}</code></pre></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>This is an error that could occur during proving or circuit synthesis.</p>
</div></details><h2id="variants"class="variants small-section-header">Variants<ahref="#variants"class="anchor"></a></h2><h3id="variant.Synthesis"class="variant small-section-header"><ahref="#variant.Synthesis"class="anchor field"></a><code>Synthesis</code></h3><divclass="docblock"><p>This is an error that can occur during synthesis of the circuit, for
</div><h3id="variant.InvalidInstances"class="variant small-section-header"><ahref="#variant.InvalidInstances"class="anchor field"></a><code>InvalidInstances</code></h3><divclass="docblock"><p>The provided instances do not match the circuit parameters.</p>
</div><h3id="variant.ConstraintSystemFailure"class="variant small-section-header"><ahref="#variant.ConstraintSystemFailure"class="anchor field"></a><code>ConstraintSystemFailure</code></h3><divclass="docblock"><p>The constraint system is not satisfied.</p>
</div><h3id="variant.BoundsFailure"class="variant small-section-header"><ahref="#variant.BoundsFailure"class="anchor field"></a><code>BoundsFailure</code></h3><divclass="docblock"><p>Out of bounds index passed to a backend</p>
</div><h3id="variant.NotEnoughRowsAvailable"class="variant small-section-header"><ahref="#variant.NotEnoughRowsAvailable"class="anchor field"></a><code>NotEnoughRowsAvailable</code></h3><divclass="sub-variant"id="variant.NotEnoughRowsAvailable.fields"><h4>Fields</h4><divclass="sub-variant-field"><spanid="variant.NotEnoughRowsAvailable.field.current_k"class="variant small-section-header"><ahref="#variant.NotEnoughRowsAvailable.field.current_k"class="anchor field"></a><code>current_k: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code></span><divclass="docblock"><p>The current value of <code>k</code> being used.</p>
</div></div></div><divclass="docblock"><p><code>k</code> is too small for the given circuit.</p>
</div><h3id="variant.InstanceTooLarge"class="variant small-section-header"><ahref="#variant.InstanceTooLarge"class="anchor field"></a><code>InstanceTooLarge</code></h3><divclass="docblock"><p>Instance provided exceeds number of available rows</p>
</div><h3id="variant.NotEnoughColumnsForConstants"class="variant small-section-header"><ahref="#variant.NotEnoughColumnsForConstants"class="anchor field"></a><code>NotEnoughColumnsForConstants</code></h3><divclass="docblock"><p>Circuit synthesis requires global constants, but circuit configuration did not
call <ahref="struct.ConstraintSystem.html#method.enable_constant"><code>ConstraintSystem::enable_constant</code></a> on fixed columns with sufficient space.</p>
</div><h3id="variant.ColumnNotInPermutation"class="variant small-section-header"><ahref="#variant.ColumnNotInPermutation"class="anchor field"></a><code>ColumnNotInPermutation(<aclass="struct"href="struct.Column.html"title="struct halo2_proofs::plonk::Column">Column</a><<aclass="enum"href="enum.Any.html"title="enum halo2_proofs::plonk::Any">Any</a>>)</code></h3><divclass="docblock"><p>The instance sets up a copy constraint involving a column that has not been
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.backtrace"class="method trait-impl has-srclink"><divclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#135"title="goto source code">source</a></div><ahref="#method.backtrace"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace"class="fnname">backtrace</a>(&self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><&<aclass="struct"href="https://doc.rust-lang.org/nightly/std/backtrace/struct.Backtrace.html"title="struct std::backtrace::Backtrace">Backtrace</a>></h4></div></summary><divclass="item-info"><divclass="stab unstable"><spanclass="emoji">🔬</span> This is a nightly-only experimental API. (<code>backtrace</code>)</div></div><divclass='docblock'><p>Returns a stack backtrace, if available, of where this error occurred. <ahref="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.description"class="method trait-impl has-srclink"><divclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#147"title="goto source code">source</a></div><ahref="#method.description"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description"class="fnname">description</a>(&self) ->&<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></div></summary><divclass="item-info"><divclass="stab deprecated"><spanclass="emoji">👎</span> Deprecated since 1.42.0: <p>use the Display impl or to_string()</p>
</div></div><divclass='docblock'><ahref="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description">Read more</a></div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.cause"class="method trait-impl has-srclink"><divclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="srclink"href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#157"title="goto source code">source</a></div><ahref="#method.cause"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.cause"class="fnname">cause</a>(&self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><&dyn <aclass="trait"href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html"title="trait std::error::Error">Error</a>></h4></div></summary><divclass="item-info"><divclass="stab deprecated"><spanclass="emoji">👎</span> Deprecated since 1.33.0: <p>replaced by Error::source, which can support downcasting</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-Conv"class="impl has-srclink"><divclass="rightside"></div><ahref="#impl-Conv"class="anchor"></a><h3class="code-header in-band">impl<T> Conv for T</h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.conv"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.conv"class="anchor"></a><h4class="code-header">fn <ahref="#method.conv"class="fnname">conv</a><T>(self) -> T <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></h4></div></summary><divclass='docblock'><p>Converts <code>self</code> into <code>T</code> using <code>Into<T></code>. <ahref="#method.conv">Read more</a></p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-FmtForward"class="impl has-srclink"><divclass="rightside"></div><ahref="#impl-FmtForward"class="anchor"></a><h3class="code-header in-band">impl<T> FmtForward for T</h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_binary"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_binary"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_binary"class="fnname">fmt_binary</a>(self) -> FmtBinary<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Binary.html"title="trait core::fmt::Binary">Binary</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>Binary</code> implementation when <code>Debug</code>-formatted.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_display"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_display"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_display"class="fnname">fmt_display</a>(self) -> FmtDisplay<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html"title="trait core::fmt::Display">Display</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>Display</code> implementation when
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_lower_exp"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_lower_exp"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_lower_exp"class="fnname">fmt_lower_exp</a>(self) -> FmtLowerExp<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.LowerExp.html"title="trait core::fmt::LowerExp">LowerExp</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>LowerExp</code> implementation when
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_lower_hex"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_lower_hex"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_lower_hex"class="fnname">fmt_lower_hex</a>(self) -> FmtLowerHex<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.LowerHex.html"title="trait core::fmt::LowerHex">LowerHex</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>LowerHex</code> implementation when
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_octal"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_octal"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_octal"class="fnname">fmt_octal</a>(self) -> FmtOctal<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Octal.html"title="trait core::fmt::Octal">Octal</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>Octal</code> implementation when <code>Debug</code>-formatted.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_pointer"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_pointer"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_pointer"class="fnname">fmt_pointer</a>(self) -> FmtPointer<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Pointer.html"title="trait core::fmt::Pointer">Pointer</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>Pointer</code> implementation when
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_upper_exp"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_upper_exp"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_upper_exp"class="fnname">fmt_upper_exp</a>(self) -> FmtUpperExp<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.UpperExp.html"title="trait core::fmt::UpperExp">UpperExp</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>UpperExp</code> implementation when
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.fmt_upper_hex"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.fmt_upper_hex"class="anchor"></a><h4class="code-header">fn <ahref="#method.fmt_upper_hex"class="fnname">fmt_upper_hex</a>(self) -> FmtUpperHex<Self><spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.UpperHex.html"title="trait core::fmt::UpperHex">UpperHex</a>, </span></h4></div></summary><divclass='docblock'><p>Causes <code>self</code> to use its <code>UpperHex</code> implementation when
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-Pipe"class="impl has-srclink"><divclass="rightside"></div><ahref="#impl-Pipe"class="anchor"></a><h3class="code-header in-band">impl<T> Pipe for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.pipe"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.pipe"class="anchor"></a><h4class="code-header">fn <ahref="#method.pipe"class="fnname">pipe</a><R>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(Self) -> R) -> R</h4></div></summary><divclass='docblock'><p>Pipes by value. This is generally the method you want to use. <ahref="#method.pipe">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.pipe_ref"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.pipe_ref"class="anchor"></a><h4class="code-header">fn <ahref="#method.pipe_ref"class="fnname">pipe_ref</a><'a, R>(&'a self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a </a>Self) -> R) -> R <spanclass="where fmt-newline">where<br> R: 'a, </span></h4></div></summary><divclass='docblock'><p>Borrows <code>self</code> and passes that borrow into the pipe function. <ahref="#method.pipe_ref">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.pipe_ref_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.pipe_ref_mut"class="anchor"></a><h4class="code-header">fn <ahref="#method.pipe_ref_mut"class="fnname">pipe_ref_mut</a><'a, R>(&'a mut self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a mut </a>Self) -> R) -> R <spanclass="where fmt-newline">where<br> R: 'a, </span></h4></div></summary><divclass='docblock'><p>Mutably borrows <code>self</code> and passes that borrow into the pipe function. <ahref="#method.pipe_ref_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle"open><summary><divid="associatedtype.Init"class="type trait-impl has-srclink"><ahref="#associatedtype.Init"class="anchor"></a><h4class="code-header">type <ahref="#associatedtype.Init"class="associatedtype">Init</a> = T</h4></div></summary><divclass='docblock'><p>The type for initializers.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.init"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.init"class="anchor"></a><h4class="code-header">pub unsafe fn <aclass="fnname">init</a>(init: <T as Pointable>::Init) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></h4></div></summary><divclass='docblock'><p>Initializes a with the given initializer. <ahref="#tymethod.init">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.deref"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.deref"class="anchor"></a><h4class="code-header">pub unsafe fn <aclass="fnname">deref</a><'a>(ptr: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a </a>T</h4></div></summary><divclass='docblock'><p>Dereferences the given pointer. <ahref="#tymethod.deref">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.deref_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.deref_mut"class="anchor"></a><h4class="code-header">pub unsafe fn <aclass="fnname">deref_mut</a><'a>(ptr: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a mut </a>T</h4></div></summary><divclass='docblock'><p>Mutably dereferences the given pointer. <ahref="#tymethod.deref_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.drop"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.drop"class="anchor"></a><h4class="code-header">pub unsafe fn <aclass="fnname">drop</a>(ptr: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</h4></div></summary><divclass='docblock'><p>Drops the object pointed to by the given pointer. <ahref="#tymethod.drop">Read more</a></p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-Tap"class="impl has-srclink"><divclass="rightside"></div><ahref="#impl-Tap"class="anchor"></a><h3class="code-header in-band">impl<T> Tap for T</h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap"class="fnname">tap</a>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)) -> Self</h4></div></summary><divclass='docblock'><p>Immutable access to a value. <ahref="#method.tap">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_mut"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_mut"class="fnname">tap_mut</a>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self)) -> Self</h4></div></summary><divclass='docblock'><p>Mutable access to a value. <ahref="#method.tap_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_borrow"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_borrow"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_borrow"class="fnname">tap_borrow</a><B>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>B)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><B>,<br> B: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Immutable access to the <code>Borrow<B></code> of a value. <ahref="#method.tap_borrow">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_borrow_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_borrow_mut"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_borrow_mut"class="fnname">tap_borrow_mut</a><B>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>B)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><B>,<br> B: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Mutable access to the <code>BorrowMut<B></code> of a value. <ahref="#method.tap_borrow_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_ref"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_ref"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_ref"class="fnname">tap_ref</a><R>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>R)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html"title="trait core::convert::AsRef">AsRef</a><R>,<br> R: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Immutable access to the <code>AsRef<R></code> view of a value. <ahref="#method.tap_ref">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_ref_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_ref_mut"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_ref_mut"class="fnname">tap_ref_mut</a><R>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>R)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.AsMut.html"title="trait core::convert::AsMut">AsMut</a><R>,<br> R: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Mutable access to the <code>AsMut<R></code> view of a value. <ahref="#method.tap_ref_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_deref"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_deref"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_deref"class="fnname">tap_deref</a><T>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html"title="trait core::ops::deref::Deref">Deref</a><Target = T>,<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Immutable access to the <code>Deref::Target</code> of a value. <ahref="#method.tap_deref">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_deref_mut"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_deref_mut"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_deref_mut"class="fnname">tap_deref_mut</a><T>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)) -> Self <spanclass="where fmt-newline">where<br> Self: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.DerefMut.html"title="trait core::ops::deref::DerefMut">DerefMut</a><Target = T> + <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html"title="trait core::ops::deref::Deref">Deref</a>,<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h4></div></summary><divclass='docblock'><p>Mutable access to the <code>Deref::Target</code> of a value. <ahref="#method.tap_deref_mut">Read more</a></p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_dbg"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_dbg"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_dbg"class="fnname">tap_dbg</a>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)) -> Self</h4></div></summary><divclass='docblock'><p>Calls <code>.tap()</code> only in debug builds, and is erased in release builds.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.tap_mut_dbg"class="method trait-impl has-srclink"><divclass="rightside"></div><ahref="#method.tap_mut_dbg"class="anchor"></a><h4class="code-header">fn <ahref="#method.tap_mut_dbg"class="fnname">tap_mut_dbg</a>(self, func: impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>(<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self)) -> Self</h4></div></summary><divclass='docblock'><p>Calls <code>.tap_mut()</code> only in debug builds, and is erased in release
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-ToString"class="impl has-srclink"><divclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2388-2402"title="goto source code">source</a></div><ahref="#impl-ToString"class="anchor"></a><h3class="code-header in-band">impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html"title="trait alloc::string::ToString">ToString</a> for T <spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html"title="trait core::fmt::Display">Display</a> + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><divid="method.to_string"class="method trait-impl has-srclink"><divclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2394"title="goto source code">source</a></div><ahref="#method.to_string"class="anchor"></a><h4class="code-header">pub default fn <ahref="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string"class="fnname">to_string</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html"title="struct alloc::string::String">String</a></h4></div></summary><divclass='docblock'><p>Converts the given value to a <code>String</code>. <ahref="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-TryFrom%3CU%3E"class="impl has-srclink"><divclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#589-598"title="goto source code">source</a></div><ahref="#impl-TryFrom%3CU%3E"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><divid="associatedtype.Error-1"class="type trait-impl has-srclink"><ahref="#associatedtype.Error-1"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></div></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"open><summary><divid="impl-TryInto%3CU%3E"class="impl has-srclink"><divclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#574-583"title="goto source code">source</a></div><ahref="#impl-TryInto%3CU%3E"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></h3></div></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><divid="associatedtype.Error"class="type trait-impl has-srclink"><ahref="#associatedtype.Error"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></div></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>