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/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
var gTestfile = "TypedArray-subarray-arguments-detaching.js";
//-----------------------------------------------------------------------------
var BUGNUMBER = 991981;
var summary =
"%TypedArray.prototype.subarray shouldn't misbehave horribly if " +
"index-argument conversion detaches the underlying ArrayBuffer";
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
function testBegin()
{
var ab = new ArrayBuffer(0x1000);
var begin =
{
valueOf: function()
{
detachArrayBuffer(ab);
return 0x800;
}
};
var ta = new Uint8Array(ab);
var ok = false;
try
{
ta.subarray(begin);
}
catch (e)
{
ok = true;
}
assertEq(ok, true, "start weirdness should have thrown");
assertEq(ab.byteLength, 0, "detaching should work for start weirdness");
}
testBegin();
function testBeginWithEnd()
{
var ab = new ArrayBuffer(0x1000);
var begin =
{
valueOf: function()
{
detachArrayBuffer(ab);
return 0x800;
}
};
var ta = new Uint8Array(ab);
var ok = false;
try
{
ta.subarray(begin, 0x1000);
}
catch (e)
{
ok = true;
}
assertEq(ok, true, "start weirdness should have thrown");
assertEq(ab.byteLength, 0, "detaching should work for start weirdness");
}
testBeginWithEnd();
function testEnd()
{
var ab = new ArrayBuffer(0x1000);
var end =
{
valueOf: function()
{
detachArrayBuffer(ab);
return 0x1000;
}
};
var ta = new Uint8Array(ab);
var ok = false;
try
{
ta.subarray(0x800, end);
}
catch (e)
{
ok = true;
}
assertEq(ok, true, "start weirdness should have thrown");
assertEq(ab.byteLength, 0, "detaching should work for start weirdness");
}
testEnd();
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("Tests complete");
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