js/src/jit-test/tests/arrays/pop-nonarray-nonwritable-length.js@6474c204b198
js/src/jit-test/tests/arrays/pop-nonarray-nonwritable-length.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 // Array.prototype.pop does a strict assignment to this.length even if the
2 // caller is nonstrict. Bug 886087.
4 load(libdir + "asserts.js");
6 // obj.length is read-only
7 var obj = {pop: [].pop, 0: "zero"};
8 Object.defineProperty(obj, "length", {configurable: true, value: 1, writable: false});
9 assertThrowsInstanceOf(() => obj.pop(), TypeError);
11 // obj.length has only a getter
12 obj = {pop: [].pop, 0: "zero", get length() { return 1; }};
13 assertThrowsInstanceOf(() => obj.pop(), TypeError);
