Source code
Revision control
Copy as Markdown
Other Tools
var BUGNUMBER = 1263811;
var summary = "GetElem for modified arguments shouldn't be optimized to get original argument.";
print(BUGNUMBER + ": " + summary);
function testModifyFirst() {
function f() {
Object.defineProperty(arguments, 1, { value: 30 });
assertEq(arguments[1], 30);
}
for (let i = 0; i < 10; i++)
f(10, 20);
}
testModifyFirst();
function testModifyLater() {
function f() {
var ans = 20;
for (let i = 0; i < 10; i++) {
if (i == 5) {
Object.defineProperty(arguments, 1, { value: 30 });
ans = 30;
}
assertEq(arguments[1], ans);
}
}
for (let i = 0; i < 10; i++)
f(10, 20);
}
testModifyLater();
if (typeof reportCompare === "function")
reportCompare(true, true);