Source code
Revision control
Copy as Markdown
Other Tools
function set(k) {
// Different typed array types to ensure we emit a SetProp IC.
var xs = [
new Int32Array(10),
new Int16Array(10),
];
for (var i = 0; i < 100; ++i) {
var x = xs[i & 1];
x[k] = 0;
}
assertEq(xs[0][k], undefined);
assertEq(xs[1][k], undefined);
}
// Make sure we use a distinct function for each test.
function test(fn) {
return Function(`return ${fn};`)();
}
// Negative numbers values aren't int32 indices.
test(set)(-1);
test(set)(-2147483648);
test(set)(-2147483649);
// Int32 indices must be less-or-equal to max-int32.
test(set)(2147483648);
// Int32 indices must not have fractional parts.
test(set)(1.5);
test(set)(-1.5);
// Non-finite numbers aren't int32 indices.
test(set)(NaN);
test(set)(-Infinity);
test(set)(Infinity);