@jaenster/weakrefmap
Version:
WeakRefMap, a weak map with access to the fields, and keys can be primitives
88 lines • 6.46 kB
JavaScript
;
var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
if (kind === "m") throw new TypeError("Private method is not writable");
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _WeakRefMap_wk, _WeakRefMap_map;
Object.defineProperty(exports, "__esModule", { value: true });
exports.WeakRefMap = void 0;
const map_ext_1 = require("map-ext");
const wrapInWeakRef = (t) => new WeakRef(t);
class WeakRefMap {
constructor(values) {
_WeakRefMap_wk.set(this, new map_ext_1.WeakMapExt(wrapInWeakRef));
_WeakRefMap_map.set(this, void 0);
__classPrivateFieldSet(this, _WeakRefMap_map, new Map(), "f");
if (values)
for (const [key, value] of values)
this.set(key, value);
}
set(key, value) {
if (typeof value === 'object' && value)
__classPrivateFieldGet(this, _WeakRefMap_map, "f").set(key, __classPrivateFieldGet(this, _WeakRefMap_wk, "f").get(value));
return this;
}
get(key) {
const wk = __classPrivateFieldGet(this, _WeakRefMap_map, "f").get(key);
const ref = wk?.deref();
if (!ref && wk) {
__classPrivateFieldGet(this, _WeakRefMap_map, "f").delete(key);
}
return ref;
}
get size() {
let i = 0;
for (const _ of this)
i++;
return i;
}
*[(_WeakRefMap_wk = new WeakMap(), _WeakRefMap_map = new WeakMap(), Symbol.toStringTag, Symbol.iterator)]() {
for (const [key, weak] of __classPrivateFieldGet(this, _WeakRefMap_map, "f")) {
const deref = weak.deref();
if (deref)
yield [key, deref];
}
}
clear() {
__classPrivateFieldGet(this, _WeakRefMap_map, "f").clear();
}
delete(key) {
return __classPrivateFieldGet(this, _WeakRefMap_map, "f").delete(key);
}
*entries() {
for (const [key, value] of this) {
yield [key, value];
}
}
forEach(fn, thisArg) {
[...this].forEach(([k, v]) => {
if (thisArg) {
fn.call(this, v, k, this);
}
else {
fn(v, k, this);
}
});
}
has(key) {
__classPrivateFieldGet(this, _WeakRefMap_map, "f").has(key);
return false;
}
*keys() {
for (const [key] of this)
yield key;
}
*values() {
for (const [, value] of this)
yield value;
}
}
exports.WeakRefMap = WeakRefMap;
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