9991a4b226
all the time, not just the first time it is run. Review URL: http://codereview.chromium.org/3037008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
122 lines
3.7 KiB
JavaScript
122 lines
3.7 KiB
JavaScript
// Copyright 2008 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: --expose-gc
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function for_in_null() {
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try {
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for (var x in null) {
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return false;
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}
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} catch(e) {
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return false;
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}
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return true;
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}
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function for_in_undefined() {
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try {
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for (var x in undefined) {
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return false;
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}
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} catch(e) {
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return false;
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}
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return true;
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}
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for (var i = 0; i < 10; ++i) {
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assertTrue(for_in_null());
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gc();
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}
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for (var j = 0; j < 10; ++j) {
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assertTrue(for_in_undefined());
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gc();
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}
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assertEquals(10, i);
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assertEquals(10, j);
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function Accumulate(x) {
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var accumulator = "";
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for (var i in x) {
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accumulator += i;
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}
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return accumulator;
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}
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for (var i = 0; i < 3; ++i) {
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var elements = Accumulate("abcd");
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// We do not assume that for-in enumerates elements in order.
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assertTrue(-1 != elements.indexOf("0"));
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assertTrue(-1 != elements.indexOf("1"));
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assertTrue(-1 != elements.indexOf("2"));
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assertTrue(-1 != elements.indexOf("3"));
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assertEquals(4, elements.length);
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}
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function for_in_string_prototype() {
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var x = new String("abc");
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x.foo = 19;
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function B() {
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this.bar = 5;
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this[7] = 4;
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}
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B.prototype = x;
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var y = new B();
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y.gub = 13;
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var elements = Accumulate(y);
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var elements1 = Accumulate(y);
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// If for-in returns elements in a different order on multiple calls, this
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// assert will fail. If that happens, consider if that behavior is OK.
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assertEquals(elements, elements1, "For-in elements not the same both times.");
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// We do not assume that for-in enumerates elements in order.
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assertTrue(-1 != elements.indexOf("0"));
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assertTrue(-1 != elements.indexOf("1"));
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assertTrue(-1 != elements.indexOf("2"));
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assertTrue(-1 != elements.indexOf("7"));
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assertTrue(-1 != elements.indexOf("foo"));
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assertTrue(-1 != elements.indexOf("bar"));
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assertTrue(-1 != elements.indexOf("gub"));
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assertEquals(13, elements.length);
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elements = Accumulate(x);
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assertTrue(-1 != elements.indexOf("0"));
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assertTrue(-1 != elements.indexOf("1"));
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assertTrue(-1 != elements.indexOf("2"));
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assertTrue(-1 != elements.indexOf("foo"));
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assertEquals(6, elements.length);
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}
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for_in_string_prototype();
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for_in_string_prototype();
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