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30 lines
780 B
30 lines
780 B
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.LruMap = void 0;
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class LruMap extends Map {
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constructor(
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// 2^30 - 1 (a SMI in V8, for 32-bit platforms)
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limit = 1073741823) {
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super();
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this.limit = limit;
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}
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set(key, value) {
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super.delete(key);
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super.set(key, value);
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if (super.size > this.limit)
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super.delete(super.keys().next().value);
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return this;
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}
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get(key) {
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const value = super.get(key);
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if (value === void 0) {
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if (super.delete(key))
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super.set(key, value);
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return value;
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}
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super.delete(key);
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super.set(key, value);
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return value;
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}
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}
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exports.LruMap = LruMap;
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