diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg')
14 files changed, 668 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/browser.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/browser.js diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/custom-proto-access-throws.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/custom-proto-access-throws.js new file mode 100644 index 0000000000..9668bd269b --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/custom-proto-access-throws.js @@ -0,0 +1,49 @@ +// 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-typedarray +description: > + Return abrupt completion getting newTarget's prototype +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] 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). + ... + + 9.1.15 GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto ) + + ... + 3. Let proto be ? Get(constructor, "prototype"). + ... +includes: [testTypedArray.js] +features: [Reflect, TypedArray] +---*/ + +var newTarget = function() {}.bind(null); +Object.defineProperty(newTarget, "prototype", { + get() { + throw new Test262Error(); + } +}); + +var sample = new Int8Array(); + +testWithTypedArrayConstructors(function(TA) { + assert.throws(Test262Error, function() { + Reflect.construct(TA, [sample], newTarget); + }); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/new-instance-extensibility.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/new-instance-extensibility.js new file mode 100644 index 0000000000..59d5efba90 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/new-instance-extensibility.js @@ -0,0 +1,48 @@ +// 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-typedarray +description: > + The new typedArray instance from a typedArray argument is extensible +info: | + 22.2.4.3 TypedArray ( typedArray ) + + ... + 4. Let O be ? AllocateTypedArray(constructorName, NewTarget, + "%TypedArrayPrototype%"). + ... + + 22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget, + defaultProto [ , length ]) + + ... + 2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]], + [[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »). + ... + + 9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList) + + ... + 11. Set the [[Extensible]] internal slot of A to true. + ... +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +var typedArraySample1 = new Int8Array(); +var typedArraySample2 = new Int8Array(); +Object.preventExtensions(typedArraySample2); + +testWithTypedArrayConstructors(function(TA) { + var sample1 = new TA(typedArraySample1); + + assert(Object.isExtensible(sample1), "new instance is extensible"); + + var sample2 = new TA(typedArraySample2); + assert( + Object.isExtensible(sample2), + "new instance does not inherit extensibility from typedarray argument" + ); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/other-ctor-returns-new-typedarray.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/other-ctor-returns-new-typedarray.js new file mode 100644 index 0000000000..8f6d0f51fe --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/other-ctor-returns-new-typedarray.js @@ -0,0 +1,30 @@ +// 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-typedarray +description: > + Return abrupt from getting typedArray argument's buffer.constructor.@@species +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +var sample1 = new Int8Array(7); +var sample2 = new Int16Array(7); + +testWithTypedArrayConstructors(function(TA) { + var sample = TA === Int8Array ? sample2 : sample1; + var typedArray = new TA(sample); + + assert.sameValue(typedArray.length, 7); + assert.notSameValue(typedArray, sample); + assert.sameValue(typedArray.constructor, TA); + assert.sameValue(Object.getPrototypeOf(typedArray), TA.prototype); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/proto-from-ctor-realm.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/proto-from-ctor-realm.js new file mode 100644 index 0000000000..d7aae2b83f --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/proto-from-ctor-realm.js @@ -0,0 +1,39 @@ +// 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-typedarray +description: Default [[Prototype]] value derived from realm of the newTarget +info: | + [...] + 4. Let O be ? AllocateTypedArray(constructorName, NewTarget, + "%TypedArrayPrototype%"). + [...] + + 22.2.4.2.1 Runtime Semantics: AllocateTypedArray + + 1. Let proto be ? GetPrototypeFromConstructor(newTarget, defaultProto). + [...] + + 9.1.14 GetPrototypeFromConstructor + + [...] + 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. +includes: [testTypedArray.js] +features: [cross-realm, Reflect, TypedArray] +---*/ + +var other = $262.createRealm().global; +var C = new other.Function(); +C.prototype = null; + +testWithTypedArrayConstructors(function(TA) { + var ta = Reflect.construct(TA, [new TA()], C); + + assert.sameValue(Object.getPrototypeOf(ta), other[TA.name].prototype); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/returns-new-instance.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/returns-new-instance.js new file mode 100644 index 0000000000..b59e86f5a2 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/returns-new-instance.js @@ -0,0 +1,33 @@ +// 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-typedarray +description: > + Return a TypedArray object +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 20. Return O. + +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +var len = 10; +var typedArraySample = new Int8Array(len); + +testWithTypedArrayConstructors(function(TA) { + var typedArray = new TA(typedArraySample); + + assert.notSameValue(typedArray, typedArraySample); + assert.sameValue(typedArray.length, len); + assert.sameValue(typedArray.constructor, TA); + assert.sameValue(Object.getPrototypeOf(typedArray), TA.prototype); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-null.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-null.js new file mode 100644 index 0000000000..2dc3b4bd0a --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-null.js @@ -0,0 +1,51 @@ +// 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-typedarray +description: > + Use default ArrayBuffer constructor on null buffer.constructor.@@species +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 17. If SameValue(elementType, srcType) is true, then + a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset). + ... + + 24.1.1.4 CloneArrayBuffer ( srcBuffer, srcByteOffset [ , cloneConstructor ] ) + + ... + 2. If cloneConstructor is not present, then + a. Let cloneConstructor be ? SpeciesConstructor(srcBuffer, %ArrayBuffer%). + ... + + 7.3.20 SpeciesConstructor ( O, defaultConstructor ) + + ... + 5. Let S be ? Get(C, @@species). + 6. If S is either undefined or null, return defaultConstructor. + ... +includes: [testTypedArray.js] +features: [Symbol.species, TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA(4); + var ctor = {}; + + sample.buffer.constructor = ctor; + + ctor[Symbol.species] = null; + var typedArray = new TA(sample); + assert.sameValue( + Object.getPrototypeOf(typedArray.buffer), + ArrayBuffer.prototype, + "buffer ctor is not called when species is null" + ); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-undefined.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-undefined.js new file mode 100644 index 0000000000..53904f8aa1 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-buffer-ctor-species-undefined.js @@ -0,0 +1,51 @@ +// 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-typedarray +description: > + Use default ArrayBuffer constructor on undefined buffer.constructor.@@species +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 17. If SameValue(elementType, srcType) is true, then + a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset). + ... + + 24.1.1.4 CloneArrayBuffer ( srcBuffer, srcByteOffset [ , cloneConstructor ] ) + + ... + 2. If cloneConstructor is not present, then + a. Let cloneConstructor be ? SpeciesConstructor(srcBuffer, %ArrayBuffer%). + ... + + 7.3.20 SpeciesConstructor ( O, defaultConstructor ) + + ... + 5. Let S be ? Get(C, @@species). + 6. If S is either undefined or null, return defaultConstructor. + ... +includes: [testTypedArray.js] +features: [Symbol.species, TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA(4); + var ctor = {}; + + sample.buffer.constructor = ctor; + + ctor[Symbol.species] = undefined; + var typedArray = new TA(sample); + assert.sameValue( + Object.getPrototypeOf(typedArray.buffer), + ArrayBuffer.prototype, + "buffer ctor is not called when species is undefined" + ); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-returns-new-cloned-typedarray.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-returns-new-cloned-typedarray.js new file mode 100644 index 0000000000..95d273cff2 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/same-ctor-returns-new-cloned-typedarray.js @@ -0,0 +1,34 @@ +// 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-typedarray +description: > + Same typedArray ctor argument returns a new cloned typedArray +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 17. If SameValue(elementType, srcType) is true, then + a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset). + ... + 23. Return O. +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA(7); + var typedArray = new TA(sample); + + assert.sameValue(typedArray.length, 7); + assert.notSameValue(typedArray, sample); + assert.notSameValue(typedArray.buffer, sample.buffer); + assert.sameValue(typedArray.constructor, TA); + assert.sameValue(Object.getPrototypeOf(typedArray), TA.prototype); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/shell.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/shell.js new file mode 100644 index 0000000000..1157ee5318 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/shell.js @@ -0,0 +1,166 @@ +// GENERATED, DO NOT EDIT +// file: testBigIntTypedArray.js +// Copyright (C) 2015 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: | + Collection of functions used to assert the correctness of BigInt TypedArray objects. +defines: + - TypedArray + - testWithBigIntTypedArrayConstructors +---*/ + +/** + * The %TypedArray% intrinsic constructor function. + */ +var TypedArray = Object.getPrototypeOf(Int8Array); + +/** + * Calls the provided function for every typed array constructor. + * + * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor. + * @param {Array} selected - An optional Array with filtered typed arrays + */ +function testWithBigIntTypedArrayConstructors(f, selected) { + /** + * Array containing every BigInt typed array constructor. + */ + var constructors = selected || [ + BigInt64Array, + BigUint64Array + ]; + + for (var i = 0; i < constructors.length; ++i) { + var constructor = constructors[i]; + try { + f(constructor); + } catch (e) { + e.message += " (Testing with " + constructor.name + ".)"; + throw e; + } + } +} + +// file: testTypedArray.js +// Copyright (C) 2015 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: | + Collection of functions used to assert the correctness of TypedArray objects. +defines: + - typedArrayConstructors + - floatArrayConstructors + - intArrayConstructors + - TypedArray + - testWithTypedArrayConstructors + - testWithAtomicsFriendlyTypedArrayConstructors + - testWithNonAtomicsFriendlyTypedArrayConstructors + - testTypedArrayConversions +---*/ + +/** + * Array containing every typed array constructor. + */ +var typedArrayConstructors = [ + Float64Array, + Float32Array, + Int32Array, + Int16Array, + Int8Array, + Uint32Array, + Uint16Array, + Uint8Array, + Uint8ClampedArray +]; + +var floatArrayConstructors = typedArrayConstructors.slice(0, 2); +var intArrayConstructors = typedArrayConstructors.slice(2, 7); + +/** + * The %TypedArray% intrinsic constructor function. + */ +var TypedArray = Object.getPrototypeOf(Int8Array); + +/** + * Callback for testing a typed array constructor. + * + * @callback typedArrayConstructorCallback + * @param {Function} Constructor the constructor object to test with. + */ + +/** + * Calls the provided function for every typed array constructor. + * + * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor. + * @param {Array} selected - An optional Array with filtered typed arrays + */ +function testWithTypedArrayConstructors(f, selected) { + var constructors = selected || typedArrayConstructors; + for (var i = 0; i < constructors.length; ++i) { + var constructor = constructors[i]; + try { + f(constructor); + } catch (e) { + e.message += " (Testing with " + constructor.name + ".)"; + throw e; + } + } +} + +/** + * Calls the provided function for every non-"Atomics Friendly" typed array constructor. + * + * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor. + * @param {Array} selected - An optional Array with filtered typed arrays + */ +function testWithNonAtomicsFriendlyTypedArrayConstructors(f) { + testWithTypedArrayConstructors(f, [ + Float64Array, + Float32Array, + Uint8ClampedArray + ]); +} + +/** + * Calls the provided function for every "Atomics Friendly" typed array constructor. + * + * @param {typedArrayConstructorCallback} f - the function to call for each typed array constructor. + * @param {Array} selected - An optional Array with filtered typed arrays + */ +function testWithAtomicsFriendlyTypedArrayConstructors(f) { + testWithTypedArrayConstructors(f, [ + Int32Array, + Int16Array, + Int8Array, + Uint32Array, + Uint16Array, + Uint8Array, + ]); +} + +/** + * Helper for conversion operations on TypedArrays, the expected values + * properties are indexed in order to match the respective value for each + * TypedArray constructor + * @param {Function} fn - the function to call for each constructor and value. + * will be called with the constructor, value, expected + * value, and a initial value that can be used to avoid + * a false positive with an equivalent expected value. + */ +function testTypedArrayConversions(byteConversionValues, fn) { + var values = byteConversionValues.values; + var expected = byteConversionValues.expected; + + testWithTypedArrayConstructors(function(TA) { + var name = TA.name.slice(0, -5); + + return values.forEach(function(value, index) { + var exp = expected[name][index]; + var initial = 0; + if (exp === 0) { + initial = 1; + } + fn(TA, value, exp, initial); + }); + }); +} diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/src-typedarray-big-throws.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/src-typedarray-big-throws.js new file mode 100644 index 0000000000..d7aaead773 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/src-typedarray-big-throws.js @@ -0,0 +1,39 @@ +// Copyright (C) 2018 Valerie Young. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-typedarray-typedarray +description: > + If typedArray constructor argument is a Big(U)Int, throw +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 19. Else, + ... + c. If one of srcType and elementType contains the substring "Big" and the other + does not, throw a TypeError exception. + +includes: [testBigIntTypedArray.js, testTypedArray.js] +features: [BigInt, TypedArray] +---*/ + +var bigTypedArray; + +testWithBigIntTypedArrayConstructors(function(BTA) { + + bigTypedArray = new BTA(16); + + testWithTypedArrayConstructors(function(TA) { + assert.throws(TypeError, function() { + new TA(bigTypedArray); + }); + }); + +}); + + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/undefined-newtarget-throws.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/undefined-newtarget-throws.js new file mode 100644 index 0000000000..4ea662775e --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/undefined-newtarget-throws.js @@ -0,0 +1,29 @@ +// 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-typedarray +description: > + Throws a TypeError if NewTarget is undefined. +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] internal slot. + + ... + 2. If NewTarget is undefined, throw a TypeError exception. + ... +includes: [testTypedArray.js] +features: [TypedArray] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var typedArray = new TA(4); + + assert.throws(TypeError, function() { + TA(typedArray); + }); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/use-custom-proto-if-object.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/use-custom-proto-if-object.js new file mode 100644 index 0000000000..c52ac6df1a --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-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-typedarray +description: > + Use prototype from new target if it's an Object +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] 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] +---*/ + +function newTarget() {} +var proto = {}; +newTarget.prototype = proto; + +var sample = new Int8Array(8); + +testWithTypedArrayConstructors(function(TA) { + var ta = Reflect.construct(TA, [sample], newTarget); + + assert.sameValue(ta.constructor, Object); + assert.sameValue(Object.getPrototypeOf(ta), proto); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/use-default-proto-if-custom-proto-is-not-object.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/use-default-proto-if-custom-proto-is-not-object.js new file mode 100644 index 0000000000..e82396a021 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/typedarray-arg/use-default-proto-if-custom-proto-is-not-object.js @@ -0,0 +1,49 @@ +// 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-typedarray +description: > + Use prototype from %TypedArray% if newTarget's prototype is not an Object +info: | + 22.2.4.3 TypedArray ( typedArray ) + + 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 a [[TypedArrayName]] 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: [TypedArray] +---*/ + +function newTarget() {} +newTarget.prototype = null; + +var sample = new Int8Array(8); + +testWithTypedArrayConstructors(function(TA) { + var ta = Reflect.construct(TA, [sample], newTarget); + + assert.sameValue(ta.constructor, TA); + assert.sameValue(Object.getPrototypeOf(ta), TA.prototype); +}); + +reportCompare(0, 0); |