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<p class='location'>Trait Walker</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Item">Item</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.walk_next">walk_next</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.iter">iter</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>petgraph</a>::<wbr><a href='index.html'>visit</a></p><script>window.sidebarCurrent = {name: 'Walker', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>petgraph</a>::<wbr><a href='index.html'>visit</a>::<wbr><a class="trait" href=''>Walker</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</span><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#355-370' title='goto source code'>[src]</a></span></h1>
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<pre class='rust trait'>pub trait Walker<Context> {
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type <a href='#associatedtype.Item' class="type">Item</a>;
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fn <a href='#tymethod.walk_next' class='fnname'>walk_next</a>(&mut self, context: Context) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self::<a class="type" href="../../petgraph/visit/trait.Walker.html#associatedtype.Item" title="type petgraph::visit::Walker::Item">Item</a>>;
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fn <a href='#method.iter' class='fnname'>iter</a>(self, context: Context) -> <a class="struct" href="../../petgraph/visit/struct.WalkerIter.html" title="struct petgraph::visit::WalkerIter">WalkerIter</a><Self, Context><br> <span class="where">where<br> Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,<br> Context: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a></span>,
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{ ... }
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}</pre><div class='docblock'><p>A walker is a traversal state, but where part of the traversal
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information is supplied manually to each next call.</p>
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<p>This for example allows graph traversals that don't hold a borrow of the
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graph they are traversing.</p>
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Associated Types<a href='#associated-types' class='anchor'></a>
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<h3 id='associatedtype.Item' class='method'><span id='Item.t' class='invisible'><code>type <a href='#associatedtype.Item' class="type">Item</a></code></span></h3></div>
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Required Methods<a href='#required-methods' class='anchor'></a>
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<h3 id='tymethod.walk_next' class='method'><span id='walk_next.v' class='invisible'><code>fn <a href='#tymethod.walk_next' class='fnname'>walk_next</a>(&mut self, context: Context) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self::<a class="type" href="../../petgraph/visit/trait.Walker.html#associatedtype.Item" title="type petgraph::visit::Walker::Item">Item</a>></code></span></h3><div class='docblock'><p>Advance to the next item</p>
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Provided Methods<a href='#provided-methods' class='anchor'></a>
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<div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../petgraph/visit/struct.WalkerIter.html" title="struct petgraph::visit::WalkerIter">WalkerIter</a><W, C></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../petgraph/visit/struct.WalkerIter.html" title="struct petgraph::visit::WalkerIter">WalkerIter</a><W, C></h3><code class="content"><span class="where fmt-newline">impl<W, C> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> for <a class="struct" href="../../petgraph/visit/struct.WalkerIter.html" title="struct petgraph::visit::WalkerIter">WalkerIter</a><W, C> <span class="where fmt-newline">where<br> W: <a class="trait" href="../../petgraph/visit/trait.Walker.html" title="trait petgraph::visit::Walker">Walker</a><C>,<br> C: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = W::<a class="type" href="../../petgraph/visit/trait.Walker.html#associatedtype.Item" title="type petgraph::visit::Walker::Item">Item</a>;</span></code></div></div><h3 id='method.iter' class='method'><span id='iter.v' class='invisible'><code>fn <a href='#method.iter' class='fnname'>iter</a>(self, context: Context) -> <a class="struct" href="../../petgraph/visit/struct.WalkerIter.html" title="struct petgraph::visit::WalkerIter">WalkerIter</a><Self, Context> <span class="where fmt-newline">where<br> Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,<br> Context: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code></span></h3><div class='docblock'><p>Create an iterator out of the walker and given <code>context</code>.</p>
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<li><div class='out-of-band'><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#406-413' title='goto source code'>[src]</a></div><code>impl<G> Walker<G> for <a class="struct" href="../../petgraph/visit/struct.Dfs.html" title="struct petgraph::visit::Dfs">Dfs</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, G::<a class="type" href="../../petgraph/visit/trait.Visitable.html#associatedtype.Map" title="type petgraph::visit::Visitable::Map">Map</a>> <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNeighbors.html" title="trait petgraph::visit::IntoNeighbors">IntoNeighbors</a> + <a class="trait" href="../../petgraph/visit/trait.Visitable.html" title="trait petgraph::visit::Visitable">Visitable</a>, </span><span class="where fmt-newline"> type <a href='#associatedtype.Item' class="type">Item</a> = G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>;</span></code></li>
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<li><div class='out-of-band'><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#415-422' title='goto source code'>[src]</a></div><code>impl<G> Walker<G> for <a class="struct" href="../../petgraph/visit/struct.DfsPostOrder.html" title="struct petgraph::visit::DfsPostOrder">DfsPostOrder</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, G::<a class="type" href="../../petgraph/visit/trait.Visitable.html#associatedtype.Map" title="type petgraph::visit::Visitable::Map">Map</a>> <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNeighbors.html" title="trait petgraph::visit::IntoNeighbors">IntoNeighbors</a> + <a class="trait" href="../../petgraph/visit/trait.Visitable.html" title="trait petgraph::visit::Visitable">Visitable</a>, </span><span class="where fmt-newline"> type <a href='#associatedtype.Item' class="type">Item</a> = G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>;</span></code></li>
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<li><div class='out-of-band'><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#424-431' title='goto source code'>[src]</a></div><code>impl<G> Walker<G> for <a class="struct" href="../../petgraph/visit/struct.Bfs.html" title="struct petgraph::visit::Bfs">Bfs</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, G::<a class="type" href="../../petgraph/visit/trait.Visitable.html#associatedtype.Map" title="type petgraph::visit::Visitable::Map">Map</a>> <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNeighbors.html" title="trait petgraph::visit::IntoNeighbors">IntoNeighbors</a> + <a class="trait" href="../../petgraph/visit/trait.Visitable.html" title="trait petgraph::visit::Visitable">Visitable</a>, </span><span class="where fmt-newline"> type <a href='#associatedtype.Item' class="type">Item</a> = G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>;</span></code></li>
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<li><div class='out-of-band'><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#433-440' title='goto source code'>[src]</a></div><code>impl<G> Walker<G> for <a class="struct" href="../../petgraph/visit/struct.Topo.html" title="struct petgraph::visit::Topo">Topo</a><G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>, G::<a class="type" href="../../petgraph/visit/trait.Visitable.html#associatedtype.Map" title="type petgraph::visit::Visitable::Map">Map</a>> <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNeighborsDirected.html" title="trait petgraph::visit::IntoNeighborsDirected">IntoNeighborsDirected</a> + <a class="trait" href="../../petgraph/visit/trait.Visitable.html" title="trait petgraph::visit::Visitable">Visitable</a>, </span><span class="where fmt-newline"> type <a href='#associatedtype.Item' class="type">Item</a> = G::<a class="type" href="../../petgraph/visit/trait.GraphBase.html#associatedtype.NodeId" title="type petgraph::visit::GraphBase::NodeId">NodeId</a>;</span></code></li>
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