Source code

Revision control

Copy as Markdown

Other Tools

var max = 40;
var key = "d";
setJitCompilerOption("ion.warmup.trigger", max - 10);
function simple() {
var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1}];
for (var i = 0; i < array.length; i++) {
var x = array[i];
assertEq("a" in x, true);
assertEq("d" in x, false);
}
}
function megamorphic() {
var array = [{a: 1}, {b: 1, a: 1}, {c: 1, a: 1},
{a: 1, b: 1}, {c: 1, e: 1, a: 1},
{__proto__:{e: 1, f: 1, a: 1, g: 1}},
{__proto__:{e: 1, f: 1, a: 1, g: 1, h: 1}}];
for (var i = 0; i < array.length; i++) {
var x = array[i];
assertEq("a" in x, true);
assertEq("d" in x, false);
}
}
function protoSetProp() {
var base = {a: 1};
var array = [{__proto__: base},
{__proto__: base, b: 1, a: 1},
{__proto__: base, c: 1, a: 1}];
for (var j = 0; j < 2; j++) {
for (var i = 0; i < array.length; i++) {
var x = array[i];
assertEq("a" in x, true);
assertEq("d" in x, (j > 0));
}
base.d = 1; // Define property on prototype
}
}
function protoSetElem() {
var base = {a: 1};
var array = [{__proto__: base},
{__proto__: base, b: 1, a: 1},
{__proto__: base, c: 1, a: 1}];
for (var j = 0; j < 2; j++) {
for (var i = 0; i < array.length; i++) {
var x = array[i];
assertEq("a" in x, true);
assertEq("d" in x, (j > 0));
}
base[key] = 1; // Define property on prototype
}
}
function test() {
for (var i = 0; i < max; i++) {
simple();
megamorphic();
protoSetProp();
protoSetElem();
}
}
test();
test();