js/src/jit-test/tests/for-of/semantics-01.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 // for-of is defined in terms of basic operations on objects, particularly
michael@0 2 // [[Get]] for properties named "iterator" and "next", and [[Call]]. These
michael@0 3 // "semantics" tests check that for-of really does appear to be implemented in
michael@0 4 // terms of those more basic operations, as required by the spec, even in
michael@0 5 // unusual cases.
michael@0 6
michael@0 7 // Deleting Array.prototype.iterator makes for-of stop working on arrays.
michael@0 8
michael@0 9 load(libdir + "asserts.js");
michael@0 10 load(libdir + "iteration.js");
michael@0 11
michael@0 12 delete Array.prototype[std_iterator];
michael@0 13 assertThrowsInstanceOf(function () { for (var x of []) ; }, TypeError);

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