@tldraw/utils/dist-esm/lib/cache.mjs.map

tldraw infinite canvas SDK (private utilities).

{
  "version": 3,
  "sources": ["../../src/lib/cache.ts"],
  "sourcesContent": ["/**\n * A micro cache used when storing records in memory (using a WeakMap).\n * @public\n */\nexport class WeakCache<K extends object, V> {\n\t/** The map of items to their cached values. */\n\titems = new WeakMap<K, V>()\n\n\t/**\n\t * Get the cached value for a given record. If the record is not present in the map, the callback\n\t * will be used to create the value (with the result being stored in the cache for next time).\n\t *\n\t * @param item - The item to get.\n\t * @param cb - The callback to use to create the value when a cached value is not found.\n\t */\n\tget<P extends K>(item: P, cb: (item: P) => V) {\n\t\tif (!this.items.has(item)) {\n\t\t\tthis.items.set(item, cb(item))\n\t\t}\n\n\t\treturn this.items.get(item)!\n\t}\n}\n"],
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  "names": []
}