bfce677866
Typed arrays from the snapshot start out in the young space but they all seem to end up in the old space sooner or later anyway. Let's expedite that by allocating them in the old space right away. Review URL: https://codereview.chromium.org/1347263003 Cr-Commit-Position: refs/heads/master@{#30804}
110 lines
4.5 KiB
JavaScript
110 lines
4.5 KiB
JavaScript
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax --expose-natives-as=builtins
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// Verify that the builtin typed arrays have been pretenured.
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assertFalse(%InNewSpace(builtins.kMath));
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assertFalse(%InNewSpace(builtins.rempio2result));
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assertFalse(%InNewSpace(builtins.rngstate));
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// Checks that all function properties of the builtin object that are actually
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// constructors (recognized by having properties on their .prototype object),
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// have only unconfigurable properties on the prototype, and the methods
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// are also non-writable.
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var names = Object.getOwnPropertyNames(builtins);
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function isFunction(obj) {
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return typeof obj == "function";
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}
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function isV8Native(name) {
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return name == "GeneratorFunction" ||
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name == "GeneratorFunctionPrototype" ||
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name == "SetIterator" ||
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name == "MapIterator" ||
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name == "ArrayIterator" ||
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name == "StringIterator";
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}
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var V8NativePrototypes = {
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GeneratorFunction: Function.prototype,
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// TODO(jugglinmike): Update the following values to the %IteratorPrototype%
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// intrinsic once it is implemented.
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// Issue 3568: Generator Prototype should have an object between itself
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// and Object.prototype
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// https://code.google.com/p/v8/issues/detail?id=3568
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GeneratorFunctionPrototype: Object.prototype,
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SetIterator: Object.prototype,
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MapIterator: Object.prototype,
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ArrayIterator: Object.prototype,
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StringIterator: Object.prototype
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};
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function checkConstructor(func, name) {
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// A constructor is a function with a prototype and properties on the
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// prototype object besides "constructor";
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if (name.charAt(0) == "$") return;
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if (typeof func.prototype != "object") return;
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var propNames = Object.getOwnPropertyNames(func.prototype);
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if (propNames.length == 0 ||
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(propNames.length == 1 && propNames[0] == "constructor")) {
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// Not a constructor.
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return;
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}
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var proto_desc = Object.getOwnPropertyDescriptor(func, "prototype");
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assertTrue(proto_desc.hasOwnProperty("value"), name);
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assertFalse(proto_desc.writable, name);
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assertFalse(proto_desc.configurable, name);
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var prototype = proto_desc.value;
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assertEquals(V8NativePrototypes[name] || null,
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Object.getPrototypeOf(prototype),
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name);
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for (var i = 0; i < propNames.length; i++) {
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var propName = propNames[i];
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if (propName == "constructor") continue;
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if (isV8Native(name)) continue;
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var testName = name + "-" + propName;
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var propDesc = Object.getOwnPropertyDescriptor(prototype, propName);
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assertTrue(propDesc.hasOwnProperty("value"), testName);
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assertFalse(propDesc.configurable, testName);
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if (isFunction(propDesc.value)) {
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assertFalse(propDesc.writable, testName);
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}
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}
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}
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for (var i = 0; i < names.length; i++) {
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var name = names[i];
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var desc = Object.getOwnPropertyDescriptor(builtins, name);
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assertTrue(desc.hasOwnProperty("value"));
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var value = desc.value;
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if (isFunction(value)) {
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checkConstructor(value, name);
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}
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}
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