Status: Accepted
Owner: ----
CC: [email protected], [email protected]
Labels: Type-Bug Priority-Medium HW-All OS-All
New issue 3684 by [email protected]: ElementsAccessor::SetLength does
not respect non-writeablity of length
https://code.google.com/p/v8/issues/detail?id=3684
var b = [1,2,3];
Object.defineProperty(b, "length",{ writable: false });
b.pop(); // => should throw, b should be [1, 2, ]
if I force V8 to fall off the fast path by doing Object.observe(b,
function() {}) then we hit the correct implementation:
var b = [1,2,3];
Object.observe(b, function () {});
Object.defineProperty(b, "length",{ writable: false });
b.pop();
// TypeError: Cannot assign to read only property 'length' of [object Array]
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