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<p class='location'>Struct Topo</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a><a href="#method.reset">reset</a><a href="#method.next">next</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Walker%3CG%3E">Walker<G></a></div></div><p class='location'><a href='../index.html'>petgraph</a>::<wbr><a href='index.html'>visit</a></p><script>window.sidebarCurrent = {name: 'Topo', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>petgraph</a>::<wbr><a href='index.html'>visit</a>::<wbr><a class="struct" href=''>Topo</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#274-277' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct Topo<N, VM> { /* fields omitted */ }</pre><div class='docblock'><p>A topological order traversal for a graph.</p>
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<p><strong>Note</strong> that <code>Topo</code> only visits nodes that are not part of cycles,
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i.e. nodes in a true DAG. Use other visitors like <code>DfsPostOrder</code> or
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algorithms like kosaraju_scc to handle graphs with possible cycles.</p>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl<N, VM> <a class="struct" href="../../petgraph/visit/struct.Topo.html" title="struct petgraph::visit::Topo">Topo</a><N, VM> <span class="where fmt-newline">where<br> N: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>,<br> VM: <a class="trait" href="../../petgraph/visit/trait.VisitMap.html" title="trait petgraph::visit::VisitMap">VisitMap</a><N>, </span></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#279-347' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>pub fn <a href='#method.new' class='fnname'>new</a><G>(graph: G) -> Self <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNodeIdentifiers.html" title="trait petgraph::visit::IntoNodeIdentifiers">IntoNodeIdentifiers</a> + <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><NodeId = N, Map = VM>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#285-291' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Create a new <code>Topo</code>, using the graph's visitor map, and put all
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initial nodes in the to visit list.</p>
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</div><h4 id='method.reset' class="method"><span id='reset.v' class='invisible'><code>pub fn <a href='#method.reset' class='fnname'>reset</a><G>(&mut self, graph: G) <span class="where fmt-newline">where<br> G: <a class="trait" href="../../petgraph/visit/trait.IntoNodeIdentifiers.html" title="trait petgraph::visit::IntoNodeIdentifiers">IntoNodeIdentifiers</a> + <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><NodeId = N, Map = VM>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#314-320' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Clear visited state, and put all initial nodes in the to visit list.</p>
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</div><h4 id='method.next' class="method"><span id='next.v' class='invisible'><code>pub fn <a href='#method.next' class='fnname'>next</a><G>(&mut self, g: G) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><N> <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><NodeId = N, Map = VM>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#327-346' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Return the next node in the current topological order traversal, or
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<code>None</code> if the traversal is at the end.</p>
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<p><em>Note:</em> The graph may not have a complete topological order, and the only
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way to know is to run the whole traversal and make sure it visits every node.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl<N: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, VM: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../petgraph/visit/struct.Topo.html" title="struct petgraph::visit::Topo">Topo</a><N, VM></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#273' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../petgraph/visit/struct.Topo.html" title="struct petgraph::visit::Topo">Topo</a><N, VM></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#273' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></div><h3 id='impl-Walker%3CG%3E' class='impl'><span class='in-band'><code>impl<G> <a class="trait" href="../../petgraph/visit/trait.Walker.html" title="trait petgraph::visit::Walker">Walker</a><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></code><a href='#impl-Walker%3CG%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#433-440' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='associatedtype.Item' class="type"><span id='Item.t' class='invisible'><code>type <a href='../../petgraph/visit/trait.Walker.html#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></code></span></h4>
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<h4 id='method.walk_next' class="method"><span id='walk_next.v' class='invisible'><code>fn <a href='../../petgraph/visit/trait.Walker.html#tymethod.walk_next' class='fnname'>walk_next</a>(&mut self, context: G) -> <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><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#437-439' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Advance to the next item</p>
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</div><h4 id='method.iter' class="method"><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><span id='iter.v' class='invisible'><code>fn <a href='../../petgraph/visit/trait.Walker.html#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><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/petgraph/visit/traversal.rs.html#361-369' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Create an iterator out of the walker and given <code>context</code>.</p>
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