diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/arguments-unmapped-aliasing.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/arguments-unmapped-aliasing.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/arguments-unmapped-aliasing.js b/js/src/tests/test262/language/statements/for-of/arguments-unmapped-aliasing.js new file mode 100644 index 0000000000..bb4aefac27 --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/arguments-unmapped-aliasing.js @@ -0,0 +1,31 @@ +// Copyright (C) 2014 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 13.6.4 +description: > + Unmapped arguments object mutation via alias during traversal using for..of +info: | + "Unmapped" arguments objects should be able to be traversed using a + `for..of` loop, and dynamic changes to the formal parameters should not be + reflected in the iterated values. +flags: [noStrict] +---*/ + +var expected = [1, 2, 3]; +var i = 0; + +(function(a, b, c) { + 'use strict'; + for (var value of arguments) { + a = b; + b = c; + c = i; + assert.sameValue(value, expected[i], 'argument at index ' + i); + i++; + } + +}(1, 2, 3)); + +assert.sameValue(i, 3, 'Visits all arguments'); + +reportCompare(0, 0); |