<p>This used to add a fast path for a single thread, however that has been
obsoleted by performance improvements to <ahref="struct.ThreadLocal.html"title="struct thread_local::ThreadLocal"><code>ThreadLocal</code></a> itself.</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-CachedThreadLocal%3CT%3E"class="impl"><aclass="src rightside"href="../src/thread_local/cached.rs.html#23-81">source</a><ahref="#impl-CachedThreadLocal%3CT%3E"class="anchor">§</a><h3class="code-header">impl<T: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a>><aclass="struct"href="struct.CachedThreadLocal.html"title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a><T></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.new"class="method"><aclass="src rightside"href="../src/thread_local/cached.rs.html#26-30">source</a><h4class="code-header">pub fn <ahref="#method.new"class="fn">new</a>() -><aclass="struct"href="struct.CachedThreadLocal.html"title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a><T></h4></section></summary><divclass="docblock"><p>Creates a new empty <code>CachedThreadLocal</code>.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.get"class="method"><aclass="src rightside"href="../src/thread_local/cached.rs.html#34-36">source</a><h4class="code-header">pub fn <ahref="#method.get"class="fn">get</a>(&self) -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&T</a>></h4></section></summary><divclass="docblock"><p>Returns the element for the current thread, if it exists.</p>
F: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>() -> T,</div></h4></section></summary><divclass="docblock"><p>Returns the element for the current thread, or creates it if it doesn’t
F: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/ops/function/trait.FnOnce.html"title="trait core::ops::function::FnOnce">FnOnce</a>() -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, E>,</div></h4></section></summary><divclass="docblock"><p>Returns the element for the current thread, or creates it if it doesn’t
exist. If <code>create</code> fails, that error is returned and no element is
added.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.iter_mut"class="method"><aclass="src rightside"href="../src/thread_local/cached.rs.html#65-69">source</a><h4class="code-header">pub fn <ahref="#method.iter_mut"class="fn">iter_mut</a>(&mut self) -><aclass="struct"href="struct.CachedIterMut.html"title="struct thread_local::CachedIterMut">CachedIterMut</a><'_, T><ahref="#"class="tooltip"data-notable-ty="CachedIterMut<'_, T>">ⓘ</a></h4></section></summary><divclass="docblock"><p>Returns a mutable iterator over the local values of all threads.</p>
<p>Since this call borrows the <code>ThreadLocal</code> mutably, this operation can
be done safely—the mutable borrow statically guarantees no other
threads are currently accessing their associated values.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clear"class="method"><aclass="src rightside"href="../src/thread_local/cached.rs.html#78-80">source</a><h4class="code-header">pub fn <ahref="#method.clear"class="fn">clear</a>(&mut self)</h4></section></summary><divclass="docblock"><p>Removes all thread-specific values from the <code>ThreadLocal</code>, effectively
reseting it to its original state.</p>
<p>Since this call borrows the <code>ThreadLocal</code> mutably, this operation can
be done safely—the mutable borrow statically guarantees no other
threads are currently accessing their associated values.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-CachedThreadLocal%3CT%3E-1"class="impl"><aclass="src rightside"href="../src/thread_local/cached.rs.html#103-109">source</a><ahref="#impl-CachedThreadLocal%3CT%3E-1"class="anchor">§</a><h3class="code-header">impl<T: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> + <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/default/trait.Default.html"title="trait core::default::Default">Default</a>><aclass="struct"href="struct.CachedThreadLocal.html"title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a><T></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.get_or_default"class="method"><aclass="src rightside"href="../src/thread_local/cached.rs.html#106-108">source</a><h4class="code-header">pub fn <ahref="#method.get_or_default"class="fn">get_or_default</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&T</a></h4></section></summary><divclass="docblock"><p>Returns the element for the current thread, or creates a default one if
<code><ahref="https://doc.rust-lang.org/1.80.0/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-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/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"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/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><scripttype="text/json"id="notable-traits-data">{"CachedIntoIter<T>":"<h3>Notabletraitsfor<code><aclass=\"struct\"href=\"struct.CachedIntoIter.html\"title=\"structthread_local::CachedIntoIter\">CachedIntoIter</a><T></code></h3><pre><code><divclass=\"where\">impl<T:<aclass=\"trait\"href=\"https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html\"title=\"traitcore::marker::Send\">Send</a>><aclass=\"trait\"href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html\"title=\"traitcore::iter::traits::iterator::Iterator\">Iterator</a>for<aclass=\"struct\"href=\"struct.CachedIntoIter.html\"title=\"structthread_local::CachedIntoIter\">CachedIntoIter</a><T></div><divclass=\"where\">type<ahref=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\"class=\"associatedtype\">Item</a>=T;</div>","CachedIterMut<'_,T>":"<h3>Notabletraitsfor<code><aclass=\"struct\"href=\"struct.CachedIterMut.html\"title=\"structthread_local::CachedIterMut\">CachedIterMut</a><'a,T></code></h3><pre><code><divclass=\"where\">impl<'a,T:<aclass=\"trait\"href=\"https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html\"title=\"traitcore::marker::Send\">Send</a>+'a><aclass=\"trait\"href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html\"title=\"traitcore::iter::traits::iterator::Iterator\">Iterator</a>for<aclass=\"struct\"href=\"struct.CachedIterMut.html\"title=\"structthread_local::CachedIterMut\">CachedIterMut</a><'a,T></div><divclass=\"where\">type<ahref=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\"class=\"associatedtype\">Item</a>=<aclass=\"primitive\"href=\"https://doc.rust-lang.org/1.80.0/std/primitive.reference.html\">&'amutT</a>;</div>","CachedIterMut<'a,T>":"<h3>Notabletraitsfor<code><aclass=\"struct\"href=\"struct.CachedIterMut.html\"title=\"structthread_local::CachedIterMut\">CachedIterMut</a><'a,T></code></h3