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backend/node_modules/fast-check/lib/arbitrary/_internals/AdapterArbitrary.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.adapter = adapter;
+const Arbitrary_1 = require("../../check/arbitrary/definition/Arbitrary");
+const Value_1 = require("../../check/arbitrary/definition/Value");
+const Stream_1 = require("../../stream/Stream");
+const AdaptedValue = Symbol('adapted-value');
+function toAdapterValue(rawValue, adapter) {
+    const adapted = adapter(rawValue.value_);
+    if (!adapted.adapted) {
+        return rawValue;
+    }
+    return new Value_1.Value(adapted.value, AdaptedValue);
+}
+class AdapterArbitrary extends Arbitrary_1.Arbitrary {
+    constructor(sourceArb, adapter) {
+        super();
+        this.sourceArb = sourceArb;
+        this.adapter = adapter;
+        this.adaptValue = (rawValue) => toAdapterValue(rawValue, adapter);
+    }
+    generate(mrng, biasFactor) {
+        const rawValue = this.sourceArb.generate(mrng, biasFactor);
+        return this.adaptValue(rawValue);
+    }
+    canShrinkWithoutContext(value) {
+        return this.sourceArb.canShrinkWithoutContext(value) && !this.adapter(value).adapted;
+    }
+    shrink(value, context) {
+        if (context === AdaptedValue) {
+            if (!this.sourceArb.canShrinkWithoutContext(value)) {
+                return Stream_1.Stream.nil();
+            }
+            return this.sourceArb.shrink(value, undefined).map(this.adaptValue);
+        }
+        return this.sourceArb.shrink(value, context).map(this.adaptValue);
+    }
+}
+function adapter(sourceArb, adapter) {
+    return new AdapterArbitrary(sourceArb, adapter);
+}