@nutui/nutui-react/dist/cjs/utils/lru.js

京东风格的轻量级移动端 React 组件库，支持一套代码生成 H5 和小程序

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "MiniLru", {
    enumerable: true,
    get: function() {
        return MiniLru;
    }
});
var _class_call_check = require("@swc/helpers/_/_class_call_check");
var _create_class = require("@swc/helpers/_/_create_class");
var _define_property = require("@swc/helpers/_/_define_property");
var MiniLru = /*#__PURE__*/ function() {
    "use strict";
    function MiniLru(capacity) {
        (0, _class_call_check._)(this, MiniLru);
        (0, _define_property._)(this, "cache", void 0);
        (0, _define_property._)(this, "capacity", void 0);
        if (capacity <= 0) {
            throw new Error('Cache capacity must be a positive number');
        }
        this.cache = new Map();
        this.capacity = capacity;
    }
    (0, _create_class._)(MiniLru, [
        {
            key: "get",
            value: function get(key) {
                if (this.cache.has(key)) {
                    var value = this.cache.get(key);
                    this.cache.delete(key);
                    this.cache.set(key, value);
                    return value;
                }
                return null;
            }
        },
        {
            key: "set",
            value: function set(key, value) {
                if (this.cache.has(key)) {
                    this.cache.delete(key);
                } else if (this.cache.size >= this.capacity) {
                    this.cache.delete(this.cache.keys().next().value);
                }
                this.cache.set(key, value);
            }
        },
        {
            key: "has",
            value: function has(key) {
                return this.cache.has(key);
            }
        }
    ]);
    return MiniLru;
}();