v8/test/mjsunit/array-pop.js
antonm@chromium.org 6acdd84a61 Current custom call generators cannot cope with the case when receiver is not a JSArray.
Add a support for bailout from custom call generators (just return undefined).

BUG=684

Review URL: http://codereview.chromium.org/1699005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4503 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-04-26 15:08:07 +00:00

73 lines
2.8 KiB
JavaScript

// Copyright 2010 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
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// * Neither the name of Google Inc. nor the names of its
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Check pops with various number of arguments.
(function() {
var a = [];
for (var i = 0; i < 7; i++) {
a = [7, 6, 5, 4, 3, 2, 1];
assertEquals(1, a.pop(), "1st pop");
assertEquals(6, a.length, "length 1st pop");
assertEquals(2, a.pop(1), "2nd pop");
assertEquals(5, a.length, "length 2nd pop");
assertEquals(3, a.pop(1, 2), "3rd pop");
assertEquals(4, a.length, "length 3rd pop");
assertEquals(4, a.pop(1, 2, 3), "4th pop");
assertEquals(3, a.length, "length 4th pop");
assertEquals(5, a.pop(), "5th pop");
assertEquals(2, a.length, "length 5th pop");
assertEquals(6, a.pop(), "6th pop");
assertEquals(1, a.length, "length 6th pop");
assertEquals(7, a.pop(), "7th pop");
assertEquals(0, a.length, "length 7th pop");
assertEquals(undefined, a.pop(), "8th pop");
assertEquals(0, a.length, "length 8th pop");
assertEquals(undefined, a.pop(1, 2, 3), "9th pop");
assertEquals(0, a.length, "length 9th pop");
}
})();
// Test the case of not JSArray receiver.
// Regression test for custom call generators, see issue 684.
(function() {
var a = [];
for (var i = 0; i < 100; i++) a.push(i);
var x = {__proto__: a};
for (var i = 0; i < 100; i++) {
assertEquals(99 - i, x.pop(), i + 'th iteration');
}
})();