v8/test/mjsunit/arguments.js
yangguo@chromium.org aa3518a0f3 Make sure files end with exactly one new line and police this in presubmit.
The changes are (excluding presubmit.py) mechanical. I added the following
lines after the check and iterated the presubmit script until all errors
went away:

f = open(name, "w");
if contents.endswith('\n\n'):
  f.write(contents[0:-1])
else:
  f.write(contents + '\n')

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/82803005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-11-22 13:50:39 +00:00

191 lines
4.8 KiB
JavaScript

// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
function argc0() {
return arguments.length;
}
function argc1(i) {
return arguments.length;
}
function argc2(i, j) {
return arguments.length;
}
assertEquals(0, argc0());
assertEquals(1, argc0(1));
assertEquals(2, argc0(1, 2));
assertEquals(3, argc0(1, 2, 3));
assertEquals(0, argc1());
assertEquals(1, argc1(1));
assertEquals(2, argc1(1, 2));
assertEquals(3, argc1(1, 2, 3));
assertEquals(0, argc2());
assertEquals(1, argc2(1));
assertEquals(2, argc2(1, 2));
assertEquals(3, argc2(1, 2, 3));
var index;
function argv0() {
return arguments[index];
}
function argv1(i) {
return arguments[index];
}
function argv2(i, j) {
return arguments[index];
}
index = 0;
assertEquals(7, argv0(7));
assertEquals(7, argv0(7, 8));
assertEquals(7, argv0(7, 8, 9));
assertEquals(7, argv1(7));
assertEquals(7, argv1(7, 8));
assertEquals(7, argv1(7, 8, 9));
assertEquals(7, argv2(7));
assertEquals(7, argv2(7, 8));
assertEquals(7, argv2(7, 8, 9));
index = 1;
assertEquals(8, argv0(7, 8));
assertEquals(8, argv0(7, 8));
assertEquals(8, argv1(7, 8, 9));
assertEquals(8, argv1(7, 8, 9));
assertEquals(8, argv2(7, 8, 9));
assertEquals(8, argv2(7, 8, 9));
index = 2;
assertEquals(9, argv0(7, 8, 9));
assertEquals(9, argv1(7, 8, 9));
assertEquals(9, argv2(7, 8, 9));
// Test that calling a lazily compiled function with
// an unexpected number of arguments works.
function f(a) { return arguments.length; };
assertEquals(3, f(1, 2, 3));
function f1(x, y) {
function g(a) {
a[0] = "three";
return a.length;
}
var l = g(arguments);
y = 5;
assertEquals(2, l);
assertEquals("three", x);
assertEquals(5, y);
}
f1(3, "five");
function f2() {
if (arguments[0] > 0) {
return arguments.callee(arguments[0] - 1) + arguments[0];
}
return 0;
}
assertEquals(55, f2(10));
function f3() {
assertEquals(0, arguments.length);
}
f3();
function f4() {
var arguments = 0;
assertEquals(void 0, arguments.length);
}
f4();
function f5(x, y, z) {
function g(a) {
x = "two";
y = "three";
a[1] = "drei";
a[2] = "fuenf";
};
g(arguments);
assertEquals("two", x);
assertEquals("drei", y);
assertEquals("fuenf", z);
}
f5(2, 3, 5);
function f6(x, y) {
x = "x";
arguments[1] = "y";
return [arguments.length, arguments[0], y, arguments[2]];
}
assertArrayEquals([0, void 0, void 0, void 0], f6());
assertArrayEquals([1, "x", void 0, void 0], f6(1));
assertArrayEquals([2, "x", "y", void 0], f6(9, 17));
assertArrayEquals([3, "x", "y", 7], f6(3, 5, 7));
assertArrayEquals([4, "x", "y", "c"], f6("a", "b", "c", "d"));
function list_args(a) {
assertEquals("function", typeof a.callee);
var result = [];
result.push(a.length);
for (i = 0; i < a.length; i++) result.push(a[i]);
return result;
}
function f1(x, y) {
function g(p) {
x = p;
}
g(y);
return list_args(arguments);
}
assertArrayEquals([0], f1());
assertArrayEquals([1, void 0], f1(3));
assertArrayEquals([2, 5, 5], f1(3, 5));
assertArrayEquals([3, 5, 5, 7], f1(3, 5, 7));
// Check out of bounds behavior.
function arg_get(x) { return arguments[x]; }
function arg_del(x) { return delete arguments[x]; }
function arg_set(x) { return (arguments[x] = 117); }
assertEquals(undefined, arg_get(0xFFFFFFFF));
assertEquals(true, arg_del(0xFFFFFFFF));
assertEquals(117, arg_set(0xFFFFFFFF));