blob: 507f31a3a2bb21fa4702203d5089165795b33fac [file] [log] [blame]
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is intended for permanent JS behavior changes for mocking out
// non-deterministic behavior. For temporary suppressions, please refer to
// v8_suppressions.js.
// This mocks only architecture specific differences. Refer to v8_mocks.js
// for the general case.
// This file is loaded before each correctness test cases and won't get
// minimized.
// Mock maximum typed-array length and limit to 1MiB.
(function () {
var mock = function(arrayType) {
var handler = {
construct: function(target, args) {
var arrayLength = args[0]
if (args.length > 0 &&
Number.isInteger(args[0]) &&
args[0] > 1048576) {
args[0] = 1048576
} else if (args.length > 2 &&
Number.isInteger(args[2]) &&
args[2] > 1048576) {
args[2] = 1048576
}
return new (
Function.prototype.bind.apply(arrayType, [null].concat(args)));
},
};
return new Proxy(arrayType, handler);
}
ArrayBuffer = mock(ArrayBuffer);
Int8Array = mock(Int8Array);
Uint8Array = mock(Uint8Array);
Uint8ClampedArray = mock(Uint8ClampedArray);
Int16Array = mock(Int16Array);
Uint16Array = mock(Uint16Array);
Int32Array = mock(Int32Array);
Uint32Array = mock(Uint32Array);
Float32Array = mock(Float32Array);
Float64Array = mock(Float64Array);
})();
// Mock typed array set function and limit maximum offset to 1MiB.
(function () {
var typedArrayTypes = [
Int8Array,
Uint8Array,
Uint8ClampedArray,
Int16Array,
Uint16Array,
Int32Array,
Uint32Array,
Float32Array,
Float64Array,
];
for (let typedArrayType of typedArrayTypes) {
let set = typedArrayType.prototype.set
typedArrayType.prototype.set = function(array, offset) {
set.apply(this, [array, offset > 1048576 ? 1048576 : offset])
};
}
})();