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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/DataView/custom-proto-if-not-object-fallbacks-to-default-prototype.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/js/src/tests/test262/built-ins/DataView/custom-proto-if-not-object-fallbacks-to-default-prototype.js b/js/src/tests/test262/built-ins/DataView/custom-proto-if-not-object-fallbacks-to-default-prototype.js
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+++ b/js/src/tests/test262/built-ins/DataView/custom-proto-if-not-object-fallbacks-to-default-prototype.js
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+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-dataview-buffer-byteoffset-bytelength
+description: >
+ Use DataView.prototype if newTarget's prototype is not an Object
+info: |
+ 24.2.2.1 DataView (buffer, byteOffset, byteLength )
+
+ ...
+ 12. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DataViewPrototype%",
+ « [[DataView]], [[ViewedArrayBuffer]], [[ByteLength]], [[ByteOffset]] »).
+ ...
+ 17. Return O.
+
+ 9.1.13 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ ,
+ internalSlotsList ] )
+
+ ...
+ 2. Let proto be ? GetPrototypeFromConstructor(constructor,
+ intrinsicDefaultProto).
+ 3. Return ObjectCreate(proto, internalSlotsList).
+
+ 9.1.15 GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
+
+ ...
+ 3. Let proto be ? Get(constructor, "prototype").
+ 4. If Type(proto) is not Object, then
+ a. Let realm be ? GetFunctionRealm(constructor).
+ b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
+ 5. Return proto.
+ ...
+features: [Reflect.construct]
+---*/
+
+var buffer = new ArrayBuffer(8);
+
+function newTarget() {}
+newTarget.prototype = null;
+
+var sample = Reflect.construct(DataView, [buffer, 0], newTarget);
+
+assert.sameValue(sample.constructor, DataView);
+assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
+
+reportCompare(0, 0);