mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.5 KiB
60 lines
1.5 KiB
// Copyright 2014 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.
|
|
|
|
// Flags: --allow-natives-syntax
|
|
|
|
var v = 0;
|
|
var my_array_proto = {};
|
|
my_array_proto.__proto__ = [].__proto__;
|
|
Object.defineProperty(my_array_proto, "0", {
|
|
get: function() { return "get " + v; },
|
|
set: function(value) { v += value; }
|
|
});
|
|
|
|
|
|
// Test that element accessors are called in standard push cases.
|
|
array = [];
|
|
array.__proto__ = my_array_proto;
|
|
|
|
array[0] = 10;
|
|
assertEquals(0, array.length);
|
|
assertEquals(10, v);
|
|
assertEquals("get 10", array[0]);
|
|
|
|
Array.prototype.push.call(array, 100);
|
|
assertEquals(1, array.length);
|
|
assertEquals(110, v);
|
|
assertEquals("get 110", array[0]);
|
|
|
|
array = [];
|
|
array.__proto__ = my_array_proto;
|
|
|
|
assertEquals(0, array.length);
|
|
array.push(110);
|
|
assertEquals(1, array.length);
|
|
assertEquals(220, v);
|
|
assertEquals("get 220", array[0]);
|
|
|
|
// Test that elements setters/getters on prototype chain are property detected
|
|
// and don't lead to overzealous optimization.
|
|
v = 0;
|
|
function push_wrapper_1(array, value) {
|
|
array.push(value);
|
|
}
|
|
array = [];
|
|
array.__proto__ = my_array_proto;
|
|
push_wrapper_1(array, 100);
|
|
assertEquals(1, array.length);
|
|
assertEquals(100, v);
|
|
push_wrapper_1(array, 100);
|
|
assertEquals(2, array.length);
|
|
assertEquals(100, v);
|
|
assertEquals("get 100", array[0]);
|
|
%OptimizeFunctionOnNextCall(push_wrapper_1);
|
|
array = [];
|
|
array.__proto__ = my_array_proto;
|
|
push_wrapper_1(array, 100);
|
|
assertEquals(1, array.length);
|
|
assertEquals(200, v);
|
|
assertEquals("get 200", array[0]);
|
|
|