"use strict";
class MADRegistry {
    constructor() {
        this.mods = new Map();
    }
    define(name, deps, factory) {
        this.mods.set(name, { deps, factory, exports: null });
    }
    require(dep, srcMod) {
        if (dep === 'require') {
            return (child) => this.require(child, srcMod);
        }
        if (dep === 'exports') {
            if (!srcMod)
                throw new Error('Internal consistency error.');
            return srcMod.exports;
        }
        const mod = this.mods.get(dep);
        if (!mod)
            throw new Error('Undefined module.');
        if (mod.exports)
            return mod.exports;
        mod.exports = {};
        const deps = mod.deps.map(child => this.require(child, mod));
        mod.factory(...deps);
        return mod.exports;
    }
    install(to) {
        to['define'] =
            (name, deps, factory) => this.define(name, deps, factory);
        to['require'] = (dep) => this.require(dep);
    }
}
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