1 line
No EOL
34 KiB
JavaScript
1 line
No EOL
34 KiB
JavaScript
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w{constructor(e={}){this._isDirected=!Object.prototype.hasOwnProperty.call(e,"directed")||e.directed,this._isMultigraph=!!Object.prototype.hasOwnProperty.call(e,"multigraph")&&e.multigraph,this._isCompound=!!Object.prototype.hasOwnProperty.call(e,"compound")&&e.compound,this._label=void 0,this._defaultNodeLabelFn=r.A(void 0),this._defaultEdgeLabelFn=r.A(void 0),this._nodes={},this._isCompound&&(this._parent={},this._children={},this._children[A]={}),this._in={},this._preds={},this._out={},this._sucs={},this._edgeObjs={},this._edgeLabels={}}isDirected(){return this._isDirected}isMultigraph(){return this._isMultigraph}isCompound(){return this._isCompound}setGraph(e){return this._label=e,this}graph(){return this._label}setDefaultNodeLabel(e){return o.A(e)||(e=r.A(e)),this._defaultNodeLabelFn=e,this}nodeCount(){return this._nodeCount}nodes(){return i.A(this._nodes)}sources(){var e=this;return u.A(this.nodes(),function(n){return s.A(e._in[n])})}sinks(){var e=this;return u.A(this.nodes(),function(n){return s.A(e._out[n])})}setNodes(e,n){var t=arguments,r=this;return a.A(e,function(e){t.length>1?r.setNode(e,n):r.setNode(e)}),this}setNode(e,n){return Object.prototype.hasOwnProperty.call(this._nodes,e)?(arguments.length>1&&(this._nodes[e]=n),this):(this._nodes[e]=arguments.length>1?n:this._defaultNodeLabelFn(e),this._isCompound&&(this._parent[e]=A,this._children[e]={},this._children[A][e]=!0),this._in[e]={},this._preds[e]={},this._out[e]={},this._sucs[e]={},++this._nodeCount,this)}node(e){return this._nodes[e]}hasNode(e){return Object.prototype.hasOwnProperty.call(this._nodes,e)}removeNode(e){if(Object.prototype.hasOwnProperty.call(this._nodes,e)){var n=e=>this.removeEdge(this._edgeObjs[e]);delete this._nodes[e],this._isCompound&&(this._removeFromParentsChildList(e),delete this._parent[e],a.A(this.children(e),e=>{this.setParent(e)}),delete this._children[e]),a.A(i.A(this._in[e]),n),delete this._in[e],delete this._preds[e],a.A(i.A(this._out[e]),n),delete this._out[e],delete this._sucs[e],--this._nodeCount}return this}setParent(e,n){if(!this._isCompound)throw new Error("Cannot set parent in a non-compound graph");if(d.A(n))n=A;else{for(var t=n+="";!d.A(t);t=this.parent(t))if(t===e)throw new Error("Setting "+n+" as parent of "+e+" would create a cycle");this.setNode(n)}return this.setNode(e),this._removeFromParentsChildList(e),this._parent[e]=n,this._children[n][e]=!0,this}_removeFromParentsChildList(e){delete this._children[this._parent[e]][e]}parent(e){if(this._isCompound){var n=this._parent[e];if(n!==A)return n}}children(e){if(d.A(e)&&(e=A),this._isCompound){var n=this._children[e];if(n)return i.A(n)}else{if(e===A)return this.nodes();if(this.hasNode(e))return[]}}predecessors(e){var n=this._preds[e];if(n)return i.A(n)}successors(e){var n=this._sucs[e];if(n)return i.A(n)}neighbors(e){var n=this.predecessors(e);if(n)return l(n,this.successors(e))}isLeaf(e){return 0===(this.isDirected()?this.successors(e):this.neighbors(e)).length}filterNodes(e){var n=new this.constructor({directed:this._isDirected,multigraph:this._isMultigraph,compound:this._isCompound});n.setGraph(this.graph());var t=this;a.A(this._nodes,function(t,r){e(r)&&n.setNode(r,t)}),a.A(this._edgeObjs,function(e){n.hasNode(e.v)&&n.hasNode(e.w)&&n.setEdge(e,t.edge(e))});var r={};function o(e){var i=t.parent(e);return void 0===i||n.hasNode(i)?(r[e]=i,i):i in r?r[i]:o(i)}return this._isCompound&&a.A(n.nodes(),function(e){n.setParent(e,o(e))}),n}setDefaultEdgeLabel(e){return o.A(e)||(e=r.A(e)),this._defaultEdgeLabelFn=e,this}edgeCount(){return this._edgeCount}edges(){return v.A(this._edgeObjs)}setPath(e,n){var t=this,r=arguments;return p.A(e,function(e,o){return r.length>1?t.setEdge(e,o,n):t.setEdge(e,o),o}),this}setEdge(){var e,n,t,r,o=!1,i=arguments[0];"object"==typeof i&&null!==i&&"v"in i?(e=i.v,n=i.w,t=i.name,2===arguments.length&&(r=arguments[1],o=!0)):(e=i,n=arguments[1],t=arguments[3],arguments.length>2&&(r=arguments[2],o=!0)),e=""+e,n=""+n,d.A(t)||(t=""+t);var u=y(this._isDirected,e,n,t);if(Object.prototype.hasOwnProperty.call(this._edgeLabels,u))return o&&(this._edgeLabels[u]=r),this;if(!d.A(t)&&!this._isMultigraph)throw new Error("Cannot set a named edge when isMultigraph = false");this.setNode(e),this.setNode(n),this._edgeLabels[u]=o?r:this._defaultEdgeLabelFn(e,n,t);var s=function(e,n,t,r){var o=""+n,i=""+t;if(!e&&o>i){var u=o;o=i,i=u}var s={v:o,w:i};r&&(s.name=r);return s}(this._isDirected,e,n,t);return e=s.v,n=s.w,Object.freeze(s),this._edgeObjs[u]=s,b(this._preds[n],e),b(this._sucs[e],n),this._in[n][u]=s,this._out[e][u]=s,this._edgeCount++,this}edge(e,n,t){var r=1===arguments.length?_(this._isDirected,arguments[0]):y(this._isDirected,e,n,t);return this._edgeLabels[r]}hasEdge(e,n,t){var r=1===arguments.length?_(this._isDirected,arguments[0]):y(this._isDirected,e,n,t);return Object.prototype.hasOwnProperty.call(this._edgeLabels,r)}removeEdge(e,n,t){var r=1===arguments.length?_(this._isDirected,arguments[0]):y(this._isDirected,e,n,t),o=this._edgeObjs[r];return o&&(e=o.v,n=o.w,delete this._edgeLabels[r],delete this._edgeObjs[r],m(this._preds[n],e),m(this._sucs[e],n),delete this._in[n][r],delete this._out[e][r],this._edgeCount--),this}inEdges(e,n){var t=this._in[e];if(t){var r=v.A(t);return n?u.A(r,function(e){return e.v===n}):r}}outEdges(e,n){var t=this._out[e];if(t){var r=v.A(t);return n?u.A(r,function(e){return e.w===n}):r}}nodeEdges(e,n){var t=this.inEdges(e,n);if(t)return t.concat(this.outEdges(e,n))}}function b(e,n){e[n]?e[n]++:e[n]=1}function m(e,n){--e[n]||delete e[n]}function y(e,n,t,r){var o=""+n,i=""+t;if(!e&&o>i){var u=o;o=i,i=u}return o+"\x01"+i+"\x01"+(d.A(r)?"\0":r)}function _(e,n){return y(e,n.v,n.w,n.name)}w.prototype._nodeCount=0,w.prototype._edgeCount=0}}]); |