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js/src/jit-test/tests/arrays/setelem-one-past-nonwritable-length.js@deefc01c0e14

js/src/jit-test/tests/arrays/setelem-one-past-nonwritable-length.js

Thu, 15 Jan 2015 21:03:48 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 21:03:48 +0100

branch

TOR_BUG_9701

changeset 11

deefc01c0e14

permissions

-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

 function f(arr, i, v)

 {

   arr[i] = v;

 }

 function test()

 {

   // Use a much-greater capacity than the eventual non-writable length.

   var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];

   Object.defineProperty(a, "length", { writable: false, value: 6 });

   for (var i = 0; i < 100; i++)

     f(a, a.length, i);

   assertEq(a.hasOwnProperty(6), false);

   assertEq(a[6], undefined);

   assertEq(a.length, 6);

 }

 test();