The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/for-of/semantics-01.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,13 @@
     1.4 +// for-of is defined in terms of basic operations on objects, particularly
     1.5 +// [[Get]] for properties named "iterator" and "next", and [[Call]]. These
     1.6 +// "semantics" tests check that for-of really does appear to be implemented in
     1.7 +// terms of those more basic operations, as required by the spec, even in
     1.8 +// unusual cases.
     1.9 +
    1.10 +// Deleting Array.prototype.iterator makes for-of stop working on arrays.
    1.11 +
    1.12 +load(libdir + "asserts.js");
    1.13 +load(libdir + "iteration.js");
    1.14 +
    1.15 +delete Array.prototype[std_iterator];
    1.16 +assertThrowsInstanceOf(function () { for (var x of []) ; }, TypeError);