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_node_modules/fast-check/lib/esm/arbitrary/letrec.js

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+import { LazyArbitrary } from './_internals/LazyArbitrary.js';
+import { safeHasOwnProperty } from '../utils/globals.js';
+const safeObjectCreate = Object.create;
+export function letrec(builder) {
+    const lazyArbs = safeObjectCreate(null);
+    const tie = (key) => {
+        if (!safeHasOwnProperty(lazyArbs, key)) {
+            lazyArbs[key] = new LazyArbitrary(String(key));
+        }
+        return lazyArbs[key];
+    };
+    const strictArbs = builder(tie);
+    for (const key in strictArbs) {
+        if (!safeHasOwnProperty(strictArbs, key)) {
+            continue;
+        }
+        const lazyAtKey = lazyArbs[key];
+        const lazyArb = lazyAtKey !== undefined ? lazyAtKey : new LazyArbitrary(key);
+        lazyArb.underlying = strictArbs[key];
+        lazyArbs[key] = lazyArb;
+    }
+    return strictArbs;
+}