"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.letrec = letrec;
const LazyArbitrary_1 = require("./_internals/LazyArbitrary");
const globals_1 = require("../utils/globals");
const safeObjectCreate = Object.create;
function letrec(builder) {
const lazyArbs = safeObjectCreate(null);
const tie = (key) => {
if (!(0, globals_1.safeHasOwnProperty)(lazyArbs, key)) {
lazyArbs[key] = new LazyArbitrary_1.LazyArbitrary(String(key));
}
return lazyArbs[key];
};
const strictArbs = builder(tie);
for (const key in strictArbs) {
if (!(0, globals_1.safeHasOwnProperty)(strictArbs, key)) {
continue;
}
const lazyAtKey = lazyArbs[key];
const lazyArb = lazyAtKey !== undefined ? lazyAtKey : new LazyArbitrary_1.LazyArbitrary(key);
lazyArb.underlying = strictArbs[key];
lazyArbs[key] = lazyArb;
}
return strictArbs;
}