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fix: In Graph data structures, only use 'undefined' and abandon the design where both 'null' and 'undefined' coexist.

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Revone 2023-11-26 20:13:34 +08:00
parent f3df66eef3
commit 7da4f8add9
1 changed files with 4 additions and 4 deletions
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8
test/unit/data-structures/graph/abstract-graph.test.ts
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@ -36,11 +36,11 @@ class MyGraph<
return new MyEdge(srcOrV1, destOrV2, weight, value) as EO;
}
deleteEdge(edge: EO): EO | null {
deleteEdge(edge: EO): EO | undefined {
return edge;
}
getEdge(srcOrKey: VertexKey, destOrKey: VertexKey): EO | null {
getEdge(srcOrKey: VertexKey, destOrKey: VertexKey): EO | undefined {
return new MyEdge(srcOrKey, destOrKey) as EO;
}
@ -62,8 +62,8 @@ class MyGraph<
return [new MyVertex(a, 'b') as VO];
}
getEndsOfEdge(edge: EO): [VO, VO] | null {
return edge ? null : null;
getEndsOfEdge(edge: EO): [VO, VO] | undefined {
return edge ? undefined : undefined;
}
protected _addEdgeOnly(edge: EO): boolean {