Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/use-custom-proto-if-object.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/use-custom-proto-if-object.js
new file mode 100644
index 0000000000..aad34833ca
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/use-custom-proto-if-object.js
@@ -0,0 +1,50 @@
+// 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-typedarray-buffer-byteoffset-length
+description: >
+  Use prototype from new target if it's an Object
+info: |
+  22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )
+
+  This description applies only if the TypedArray function is called with at
+  least one argument and the Type of the first argument is Object and that
+  object has an [[ArrayBufferData]] internal slot.
+
+  ...
+  4. Let O be ? AllocateTypedArray(constructorName, NewTarget,
+  %TypedArrayPrototype%).
+  ...
+
+  22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
+  defaultProto [ , length ])
+
+  1. Let proto be ? GetPrototypeFromConstructor(newTarget, defaultProto).
+  2. Let obj be IntegerIndexedObjectCreate (proto, «[[ViewedArrayBuffer]],
+  [[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]]» ).
+  ...
+
+  9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
+
+  ...
+  10. Set the [[Prototype]] internal slot of A to prototype.
+  ...
+  12. Return A.
+includes: [testTypedArray.js]
+features: [Reflect, TypedArray]
+---*/
+
+var buffer = new ArrayBuffer(8);
+
+function newTarget() {}
+var proto = {};
+newTarget.prototype = proto;
+
+testWithTypedArrayConstructors(function(TA) {
+  var ta = Reflect.construct(TA, [buffer], newTarget);
+
+  assert.sameValue(ta.constructor, Object);
+  assert.sameValue(Object.getPrototypeOf(ta), proto);
+});
+
+reportCompare(0, 0);