@tldraw/utils
Version:
tldraw infinite canvas SDK (private utilities).
42 lines (41 loc) • 1.55 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var cache_exports = {};
__export(cache_exports, {
WeakCache: () => WeakCache
});
module.exports = __toCommonJS(cache_exports);
class WeakCache {
/** The map of items to their cached values. */
items = /* @__PURE__ */ new WeakMap();
/**
* Get the cached value for a given record. If the record is not present in the map, the callback
* will be used to create the value (with the result being stored in the cache for next time).
*
* @param item - The item to get.
* @param cb - The callback to use to create the value when a cached value is not found.
*/
get(item, cb) {
if (!this.items.has(item)) {
this.items.set(item, cb(item));
}
return this.items.get(item);
}
}
//# sourceMappingURL=cache.js.map