filefive/dist/utils/ReferenceCountMap.js

SFTP/FTP/Amazon S3 client and dual-panel file manager for macOS and Linux

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class default_1 {
    constructor() {
        this.entries = new Map;
    }
    set(key, value) {
        const found = this.entries.get(key);
        this.entries.set(key, found ? { count: ++found.count, value } : { count: 1, value });
        return this;
    }
    has(key) {
        return this.entries.has(key);
    }
    get(key) {
        return this.entries.get(key)?.value;
    }
    inc(key) {
        const found = this.entries.get(key);
        return found ? ++found.count : 0;
    }
    dec(key) {
        const found = this.entries.get(key);
        if (found) {
            if (--found.count <= 0) {
                this.entries.delete(key);
                return found.value;
            }
        }
        return undefined;
    }
    del(key) {
        const found = this.entries.get(key);
        found && this.entries.delete(key);
        return found?.value;
    }
    count(key) {
        return this.entries.get(key)?.count;
    }
    modify(key, value) {
        const found = this.entries.get(key);
        if (found) {
            found.value = value;
            return true;
        }
        return false;
    }
    keys() {
        return this.entries.keys();
    }
    renameKey(from, to) {
        if (!this.entries.has(from)) {
            return;
        }
        this.entries.has(to) ?
            this.entries.get(to).count += this.entries.get(from).count :
            this.entries.set(to, this.entries.get(from));
        this.entries.delete(from);
    }
}
exports.default = default_1;