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@seriouscoderone/toposort

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Topological sort of directed ascyclic graphs (like dependecy lists)

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<!doctype html> <html lang="en"> <head> <title>Code coverage report for toposort.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <link rel="shortcut icon" type="image/x-icon" href="favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="index.html">All files</a> toposort.ts</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> <span class="strong">94.28% </span> <span class="quiet">Statements</span> <span class='fraction'>66/70</span> </div> <div class='fl pad1y space-right2'> <span class="strong">90.47% </span> <span class="quiet">Branches</span> <span class='fraction'>19/21</span> </div> <div class='fl pad1y space-right2'> <span class="strong">75% </span> <span class="quiet">Functions</span> 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validateEdges } from './validators.js' &nbsp; function visitFactory(visited: Record&lt;string, boolean&gt;, outgoingEdges: Map&lt;unknown, Set&lt;unknown&gt;&gt;, nodesHash: Map&lt;unknown, number&gt;, sorted: any[], cursor: number) { function visit(node: unknown, i: number, predecessors: Set&lt;unknown&gt;) { if (predecessors.has(node)) { let nodeRep try { nodeRep = ', node was:' + JSON.stringify(node) <span class="branch-0 cbranch-no" title="branch not covered" > } catch {</span> <span class="cstat-no" title="statement not covered" > nodeRep = ''</span> <span class="cstat-no" title="statement not covered" > }</span> throw new Error('Cyclic dependency' + nodeRep) } &nbsp; if (!nodesHash.has(node)) <span class="branch-0 cbranch-no" title="branch not covered" >{</span> <span class="cstat-no" title="statement not covered" > throw new Error('Found unknown node. Make sure to provided all involved nodes. Unknown node: ' + JSON.stringify(node))</span> <span class="cstat-no" title="statement not covered" > }</span> &nbsp; if (visited[i]) return visited[i] = true &nbsp; const outgoingSet: (Set&lt;unknown&gt; | unknown[]) = outgoingEdges.get(node) || new Set() const outgoing = [...outgoingSet] i = outgoing.length &nbsp; if (i) { predecessors.add(node) do { const child: any = outgoing[--i] visit(child, nodesHash.get(child) as number, predecessors) } while (i) predecessors.delete(node) } &nbsp; sorted[--cursor] = node } &nbsp; return visit } &nbsp; function toposortCore(nodes: unknown[], edges: unknown[][]) { const cursor = nodes.length let i = cursor const sorted: any[] = [] const visited: Record&lt;string, boolean&gt; = {} const nodesHash = makeNodesHash(nodes) const outgoingEdges = makeOutgoingEdges(edges) const visit = visitFactory(visited, outgoingEdges, nodesHash, sorted, cursor) &nbsp; while (i--) { if (!visited[i]) visit(nodes[i], i, new Set()) } &nbsp; return sorted } &nbsp; export function toposort(nodes: unknown[], edges: unknown[][]) { validateEdges(nodes, edges) &nbsp; return toposortCore(nodes, edges) } &nbsp; export function toposortDefault(edges: unknown[][]) { return toposort(uniqueNodes(edges), edges) } &nbsp; toposortDefault.array = toposort &nbsp; export default toposortDefault &nbsp; &nbsp;</pre></td></tr></table></pre> <div class='push'></div><!-- for sticky footer --> </div><!-- /wrapper --> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> at 2024-06-26T00:02:51.177Z </div> <script src="prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="sorter.js"></script> <script src="block-navigation.js"></script> </body> </html>