<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../../tracing_core/all.html"title="show sidebar"></a></div><inputclass="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"><divid="help-button"tabindex="-1"><ahref="../../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Struct <ahref="../index.html">tracing_core</a>::<wbr><ahref="index.html">subscriber</a>::<wbr><aclass="struct"href="#">NoSubscriber</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../../src/tracing_core/subscriber.rs.html#675">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>pub struct NoSubscriber(<spanclass="comment">/* private fields */</span>);</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>A no-op <ahref="../trait.Subscriber.html"title="trait tracing_core::Subscriber"><code>Subscriber</code></a>.</p>
<p><ahref="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber"><code>NoSubscriber</code></a> implements the <ahref="../trait.Subscriber.html"title="trait tracing_core::Subscriber"><code>Subscriber</code></a> trait by never being enabled,
never being interested in any callsite, and dropping all spans and events.</p>
</div></details><h2id="implementations"class="section-header">Implementations<ahref="#implementations"class="anchor">§</a></h2><divid="implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-NoSubscriber"class="impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#702-708">source</a><ahref="#impl-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.new"class="method"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#705-707">source</a><h4class="code-header">pub const fn <ahref="#method.new"class="fn">new</a>() -> Self</h4></section></summary><divclass="docblock"><p>Returns a new <code>NoSubscriber</code>.</p>
the subscriber is interested in being notified about the callsite. <ahref="../trait.Subscriber.html#method.register_callsite">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.new_span"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#683-685">source</a><ahref="#method.new_span"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.new_span"class="fn">new_span</a>(&self, _: &<aclass="struct"href="../span/struct.Attributes.html"title="struct tracing_core::span::Attributes">Attributes</a><'_>) -><aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a></h4></section></summary><divclass='docblock'>Visit the construction of a new span, returning a new <ahref="../span/struct.Id.html"title="struct tracing_core::span::Id">span ID</a> for the
span being constructed. <ahref="../trait.Subscriber.html#tymethod.new_span">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.event"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#687">source</a><ahref="#method.event"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.event"class="fn">event</a>(&self, _event: &<aclass="struct"href="../struct.Event.html"title="struct tracing_core::Event">Event</a><'_>)</h4></section></summary><divclass='docblock'>Records that an <ahref="../struct.Event.html"title="struct tracing_core::Event"><code>Event</code></a> has occurred. <ahref="../trait.Subscriber.html#tymethod.event">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.record"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#689">source</a><ahref="#method.record"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.record"class="fn">record</a>(&self, _span: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>, _values: &<aclass="struct"href="../span/struct.Record.html"title="struct tracing_core::span::Record">Record</a><'_>)</h4></section></summary><divclass='docblock'>Record a set of values on a span. <ahref="../trait.Subscriber.html#tymethod.record">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.record_follows_from"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#691">source</a><ahref="#method.record_follows_from"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.record_follows_from"class="fn">record_follows_from</a>(&self, _span: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>, _follows: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><divclass='docblock'>Adds an indication that <code>span</code> follows from the span with the id
<code>follows</code>. <ahref="../trait.Subscriber.html#tymethod.record_follows_from">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.enabled"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#694-696">source</a><ahref="#method.enabled"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.enabled"class="fn">enabled</a>(&self, _metadata: &<aclass="struct"href="../struct.Metadata.html"title="struct tracing_core::Metadata">Metadata</a><'_>) -><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass='docblock'>Returns true if a span or event with the specified <ahref="../struct.Metadata.html"title="struct tracing_core::Metadata">metadata</a> would be
recorded. <ahref="../trait.Subscriber.html#tymethod.enabled">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.enter"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#698">source</a><ahref="#method.enter"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.enter"class="fn">enter</a>(&self, _span: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><divclass='docblock'>Records that a span has been entered. <ahref="../trait.Subscriber.html#tymethod.enter">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.exit"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#699">source</a><ahref="#method.exit"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#tymethod.exit"class="fn">exit</a>(&self, _span: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><divclass='docblock'>Records that a span has been exited. <ahref="../trait.Subscriber.html#tymethod.exit">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.on_register_dispatch"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#103-105">source</a><ahref="#method.on_register_dispatch"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.on_register_dispatch"class="fn">on_register_dispatch</a>(&self, subscriber: &<aclass="struct"href="../struct.Dispatch.html"title="struct tracing_core::Dispatch">Dispatch</a>)</h4></section></summary><divclass='docblock'>Invoked when this subscriber becomes a <ahref="../struct.Dispatch.html"title="struct tracing_core::Dispatch"><code>Dispatch</code></a>. <ahref="../trait.Subscriber.html#method.on_register_dispatch">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.max_level_hint"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#230-232">source</a><ahref="#method.max_level_hint"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.max_level_hint"class="fn">max_level_hint</a>(&self) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="struct"href="../struct.LevelFilter.html"title="struct tracing_core::LevelFilter">LevelFilter</a>></h4></section></summary><divclass='docblock'>Returns the highest <ahref="../struct.Level.html"title="struct tracing_core::Level">verbosity level</a> that this <code>Subscriber</code> will
filtering or chooses not to implement this method. <ahref="../trait.Subscriber.html#method.max_level_hint">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.event_enabled"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#326-329">source</a><ahref="#method.event_enabled"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.event_enabled"class="fn">event_enabled</a>(&self, event: &<aclass="struct"href="../struct.Event.html"title="struct tracing_core::Event">Event</a><'_>) -><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass='docblock'>Determine if an <ahref="../struct.Event.html"title="struct tracing_core::Event"><code>Event</code></a> should be recorded. <ahref="../trait.Subscriber.html#method.event_enabled">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_span"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#393-395">source</a><ahref="#method.clone_span"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.clone_span"class="fn">clone_span</a>(&self, id: &<aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>) -><aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a></h4></section></summary><divclass='docblock'>Notifies the subscriber that a <ahref="../span/struct.Id.html"title="struct tracing_core::span::Id">span ID</a> has been cloned. <ahref="../trait.Subscriber.html#method.clone_span">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.drop_span"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#407">source</a><ahref="#method.drop_span"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.drop_span"class="fn">drop_span</a>(&self, _id: <aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><spanclass="item-info"><divclass="stab deprecated"><spanclass="emoji">👎</span><span>Deprecated since 0.1.2: use <code>Subscriber::try_close</code> instead</span></div></span><divclass='docblock'><strong>This method is deprecated.</strong><ahref="../trait.Subscriber.html#method.drop_span">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_close"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#445-449">source</a><ahref="#method.try_close"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.try_close"class="fn">try_close</a>(&self, id: <aclass="struct"href="../span/struct.Id.html"title="struct tracing_core::span::Id">Id</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass='docblock'>Notifies the subscriber that a <ahref="../span/struct.Id.html"title="struct tracing_core::span::Id">span ID</a> has been dropped, and returns
<code>true</code> if there are now 0 IDs that refer to that span. <ahref="../trait.Subscriber.html#method.try_close">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.current_span"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#464-466">source</a><ahref="#method.current_span"class="anchor">§</a><h4class="code-header">fn <ahref="../trait.Subscriber.html#method.current_span"class="fn">current_span</a>(&self) -><aclass="struct"href="../span/struct.Current.html"title="struct tracing_core::span::Current">Current</a></h4></section></summary><divclass='docblock'>Returns a type representing this subscriber’s view of the current span. <ahref="../trait.Subscriber.html#method.current_span">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.downcast_raw"class="method trait-impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#495-501">source</a><ahref="#method.downcast_raw"class="anchor">§</a><h4class="code-header">unsafe fn <ahref="../trait.Subscriber.html#method.downcast_raw"class="fn">downcast_raw</a>(&self, id: <aclass="struct"href="https://doc.rust-lang.org/1.78.0/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a>) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.pointer.html">*const </a><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.unit.html">()</a>></h4></section></summary><divclass='docblock'>If <code>self</code> is the same type as the provided <code>TypeId</code>, returns an untyped
<code>*const</code> pointer to that type. Otherwise, returns <code>None</code>. <ahref="../trait.Subscriber.html#method.downcast_raw">Read more</a></div></details></div></details><sectionid="impl-Copy-for-NoSubscriber"class="impl"><aclass="src rightside"href="../../src/tracing_core/subscriber.rs.html#674">source</a><ahref="#impl-Copy-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Copy.html"title="trait core::marker::Copy">Copy</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section></div><h2id="synthetic-implementations"class="section-header">Auto Trait Implementations<ahref="#synthetic-implementations"class="anchor">§</a></h2><divid="synthetic-implementations-list"><sectionid="impl-Freeze-for-NoSubscriber"class="impl"><ahref="#impl-Freeze-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Freeze.html"title="trait core::marker::Freeze">Freeze</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section><sectionid="impl-RefUnwindSafe-for-NoSubscriber"class="impl"><ahref="#impl-RefUnwindSafe-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/panic/unwind_safe/trait.RefUnwindSafe.html"title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section><sectionid="impl-Send-for-NoSubscriber"class="impl"><ahref="#impl-Send-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section><sectionid="impl-Sync-for-NoSubscriber"class="impl"><ahref="#impl-Sync-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section><sectionid="impl-Unpin-for-NoSubscriber"class="impl"><ahref="#impl-Unpin-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section><sectionid="impl-UnwindSafe-for-NoSubscriber"class="impl"><ahref="#impl-UnwindSafe-for-NoSubscriber"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/panic/unwind_safe/trait.UnwindSafe.html"title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <aclass="struct"href="struct.NoSubscriber.html"title="struct tracing_core::subscriber::NoSubscriber">NoSubscriber</a></h3></section></div><h2id="blanket-implementations"class="section-header">Blanket Implementations<ahref="#blanket-implementations"class="anchor">§</a></h2><divid="blanket-implementations-list"><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Any-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/any.rs.html#140">source</a><ahref="#impl-Any-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T<divclass="where">where
T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.type_id"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/any.rs.html#141">source</a><ahref="#method.type_id"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/any/trait.Any.html#tymethod.type_id"class="fn">type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/1.78.0/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></h4></section></summary><divclass='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/1.78.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Borrow%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/borrow.rs.html#208">source</a><ahref="#impl-Borrow%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/borrow.rs.html#210">source</a><ahref="#method.borrow"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/borrow/trait.Borrow.html#tymethod.borrow"class="fn">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.reference.html">&T</a></h4></section></summary><divclass='docblock'>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.78.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-BorrowMut%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/borrow.rs.html#216">source</a><ahref="#impl-BorrowMut%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow_mut"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/borrow.rs.html#217">source</a><ahref="#method.borrow_mut"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut"class="fn">borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.reference.html">&mut T</a></h4></section></summary><divclass='docblock'>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.78.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-From%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#765">source</a><ahref="#impl-From%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#768">source</a><ahref="#method.from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.From.html#tymethod.from"class="fn">from</a>(t: T) -> T</h4></section></summary><divclass="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Into%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#748-750">source</a><ahref="#impl-Into%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><U> for T<divclass="where">where
<code><ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToOwned-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/alloc/borrow.rs.html#83-85">source</a><ahref="#impl-ToOwned-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T<divclass="where">where
T: <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Owned"class="associatedtype trait-impl"><ahref="#associatedtype.Owned"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned"class="associatedtype">Owned</a> = T</h4></section></summary><divclass='docblock'>The resulting type after obtaining ownership.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_owned"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/alloc/borrow.rs.html#88">source</a><ahref="#method.to_owned"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned"class="fn">to_owned</a>(&self) -> T</h4></section></summary><divclass='docblock'>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/alloc/borrow.rs.html#92">source</a><ahref="#method.clone_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.78.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><divclass='docblock'>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/1.78.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#805-807">source</a><ahref="#impl-TryFrom%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#812">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#790-792">source</a><ahref="#impl-TryInto%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.78.0/src/core/convert/mod.rs.html#797">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>
