blob: 0bd7528f10037357e4cea2d9ef2bbbd8239d3b1f [file] [log] [blame]
Ben Murdochb8e0da22011-05-16 14:20:40 +01001// Copyright 2011 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6// * Redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer.
8// * Redistributions in binary form must reproduce the above
9// copyright notice, this list of conditions and the following
10// disclaimer in the documentation and/or other materials provided
11// with the distribution.
12// * Neither the name of Google Inc. nor the names of its
13// contributors may be used to endorse or promote products derived
14// from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// The test verifies that parameters of the outer function are correctly
29// accessible from the inner closure.
30
31function runner(f, expected) {
32 for (var i = 0; i < 10000; i++) { // Loop to trigger optimization.
33 assertEquals(expected, f.call(this, 10));
34 }
35}
36
37Function.prototype.bind = function(thisObject)
38{
39 var func = this;
40 var args = Array.prototype.slice.call(arguments, 1);
41 function bound()
42 {
43 // Note outer function parameter access (|thisObject|).
44 return func.apply(
45 thisObject,
46 args.concat(Array.prototype.slice.call(arguments, 0)));
47 }
48 return bound;
49}
50
51function sum(x, y) {
52 return x + y;
53}
54
55function test(n) {
56 runner(sum.bind(this, n), n + 10);
57}
58
59test(1);
60test(42);
61test(239);