js/src/jit-test/tests/collections/Array-of-length-setter-2.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 // Array.of does a strict assignment to the new object's .length.
michael@0 2 // The assignment is strict even if the code we're calling from is not strict.
michael@0 3
michael@0 4 load(libdir + "asserts.js");
michael@0 5
michael@0 6 function Empty() {}
michael@0 7 Empty.of = Array.of;
michael@0 8 Object.defineProperty(Empty.prototype, "length", {get: () => 0});
michael@0 9
michael@0 10 var nothing = new Empty;
michael@0 11 nothing.length = 2; // no exception; this is not a strict mode assignment
michael@0 12
michael@0 13 assertThrowsInstanceOf(() => Empty.of(), TypeError);

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