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54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-getfunctionrealm
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description: >
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The realm of a Proxy exotic object is the realm of its target function.
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info: |
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Array ( )
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[...]
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4. Let proto be ? GetPrototypeFromConstructor(newTarget, "%Array.prototype%").
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5. Return ! ArrayCreate(0, proto).
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OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
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[...]
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2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
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3. Return OrdinaryObjectCreate(proto, internalSlotsList).
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GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
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[...]
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3. Let proto be ? Get(constructor, "prototype").
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4. If Type(proto) is not Object, then
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a. Let realm be ? GetFunctionRealm(constructor).
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b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
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5. Return proto.
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GetFunctionRealm ( obj )
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[...]
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2. If obj has a [[Realm]] internal slot, then
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a. Return obj.[[Realm]].
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[...]
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4. If obj is a Proxy exotic object, then
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[...]
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b. Let proxyTarget be obj.[[ProxyTarget]].
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c. Return ? GetFunctionRealm(proxyTarget).
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features: [cross-realm, Reflect, Proxy]
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---*/
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var realm1 = $262.createRealm().global;
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var realm2 = $262.createRealm().global;
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var realm3 = $262.createRealm().global;
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var newTarget = new realm1.Function();
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newTarget.prototype = false;
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var newTargetProxy = new realm2.Proxy(newTarget, {});
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var array = Reflect.construct(realm3.Array, [], newTargetProxy);
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assert(array instanceof realm1.Array);
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assert.sameValue(Object.getPrototypeOf(array), realm1.Array.prototype);
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