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// Force recognition of a known-constant.
var push = Array.prototype.push;
function f(arr)
{
// Push an actual constant to trigger JIT-inlining of the effect of the push.
push.call(arr, 99);
}
function basic(out)
{
// Create an array of arrays, to be iterated over for [].push-calling. We
// can't just loop on push on a single array with non-writable length because
// push throws when called on an array with non-writable length.
var arrs = out.arrs = [];
for (var i = 0; i < 100; i++)
arrs.push([]);
// 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 });
arrs.push(a);
for (var i = 0, sz = arrs.length; i < sz; i++)
{
var arr = arrs[i];
f(arr);
}
}
var obj = {};
var arrs, a;
try
{
basic(obj);
throw new Error("didn't throw!");
}
catch (e)
{
assertEq(e instanceof TypeError, true, "expected TypeError, got " + e);
arrs = obj.arrs;
assertEq(arrs.length, 101);
for (var i = 0; i < 100; i++)
{
assertEq(arrs[i].length, 1, "unexpected length for arrs[" + i + "]");
assertEq(arrs[i][0], 99, "bad element for arrs[" + i + "]");
}
a = arrs[100];
assertEq(a.hasOwnProperty(6), false);
assertEq(a[6], undefined);
assertEq(a.length, 6);
}
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