@tsukiroku/tiny/dist/tiny/object/env.js

Tiny interpreter

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class Enviroment {
    store = new Map();
    outer = null;
    constructor(outer = null) {
        this.outer = outer;
    }
    get(name) {
        const value = this.store.get(name);
        if (value)
            return value;
        if (this.outer)
            return this.outer.get(name);
        return null;
    }
    set(name, value) {
        this.store.set(name, value);
    }
    delete(name) {
        this.store.delete(name);
    }
    update(name, value) {
        if (this.store.has(name))
            this.store.set(name, value);
        else if (this.outer)
            this.outer.update(name, value);
    }
    has(name) {
        return this.store.has(name) ?? (this.outer && this.outer.has(name));
    }
}
exports.default = Enviroment;