@tldraw/store/dist-esm/lib/setUtils.mjs.map

tldraw infinite canvas SDK (store).

{
  "version": 3,
  "sources": ["../../src/lib/setUtils.ts"],
  "sourcesContent": ["import { CollectionDiff } from './Store'\n\n/**\n * Combine multiple sets into a single set containing only the common elements of all sets.\n *\n * @param sets - The sets to combine.\n */\nexport function intersectSets<T>(sets: Set<T>[]) {\n\tif (sets.length === 0) return new Set<T>()\n\tconst first = sets[0]\n\tconst rest = sets.slice(1)\n\tconst result = new Set<T>()\n\n\tfor (const val of first) {\n\t\tif (rest.every((set) => set.has(val))) {\n\t\t\tresult.add(val)\n\t\t}\n\t}\n\n\treturn result\n}\n\n/**\n * Calculates a diff between two sets.\n *\n * @param prev - The previous set\n * @param next - The next set\n */\nexport function diffSets<T>(prev: Set<T>, next: Set<T>): CollectionDiff<T> | undefined {\n\tconst result: CollectionDiff<T> = {}\n\n\tfor (const val of next) {\n\t\tif (!prev.has(val)) {\n\t\t\tresult.added ??= new Set()\n\t\t\tresult.added.add(val)\n\t\t}\n\t}\n\n\tfor (const val of prev) {\n\t\tif (!next.has(val)) {\n\t\t\tresult.removed ??= new Set()\n\t\t\tresult.removed.add(val)\n\t\t}\n\t}\n\n\treturn result.added || result.removed ? result : undefined\n}\n"],
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