60 lines
3.1 KiB
Plaintext
60 lines
3.1 KiB
Plaintext
"use strict";
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var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
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if (kind === "m") throw new TypeError("Private method is not writable");
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if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
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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");
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return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
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};
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var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
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if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
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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");
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return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
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};
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var _ExpiringCache_cacheDurationSeconds, _ExpiringCache_map;
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ExpiringCache = exports.DEFAULT_TSCONFIG_CACHE_DURATION_SECONDS = void 0;
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exports.DEFAULT_TSCONFIG_CACHE_DURATION_SECONDS = 30;
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const ZERO_HR_TIME = [0, 0];
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/**
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* A map with key-level expiration.
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*/
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class ExpiringCache {
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constructor(cacheDurationSeconds) {
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_ExpiringCache_cacheDurationSeconds.set(this, void 0);
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_ExpiringCache_map.set(this, new Map());
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__classPrivateFieldSet(this, _ExpiringCache_cacheDurationSeconds, cacheDurationSeconds, "f");
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}
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set(key, value) {
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__classPrivateFieldGet(this, _ExpiringCache_map, "f").set(key, {
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value,
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lastSeen: __classPrivateFieldGet(this, _ExpiringCache_cacheDurationSeconds, "f") === 'Infinity'
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? // no need to waste time calculating the hrtime in infinity mode as there's no expiry
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ZERO_HR_TIME
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: process.hrtime(),
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});
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return this;
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}
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get(key) {
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const entry = __classPrivateFieldGet(this, _ExpiringCache_map, "f").get(key);
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if (entry?.value != null) {
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if (__classPrivateFieldGet(this, _ExpiringCache_cacheDurationSeconds, "f") === 'Infinity') {
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return entry.value;
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}
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const ageSeconds = process.hrtime(entry.lastSeen)[0];
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if (ageSeconds < __classPrivateFieldGet(this, _ExpiringCache_cacheDurationSeconds, "f")) {
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// cache hit woo!
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return entry.value;
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}
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// key has expired - clean it up to free up memory
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__classPrivateFieldGet(this, _ExpiringCache_map, "f").delete(key);
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}
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// no hit :'(
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return undefined;
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}
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clear() {
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__classPrivateFieldGet(this, _ExpiringCache_map, "f").clear();
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}
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}
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exports.ExpiringCache = ExpiringCache;
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_ExpiringCache_cacheDurationSeconds = new WeakMap(), _ExpiringCache_map = new WeakMap();
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//# sourceMappingURL=ExpiringCache.js.map |