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// Test various inlinable Object constructor calls.
function callNoArgs() {
for (let i = 0; i < 100; ++i) {
let obj = Object();
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) callNoArgs();
function constructNoArgs() {
for (let i = 0; i < 100; ++i) {
let obj = new Object();
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) constructNoArgs();
function funCallNoArgs() {
// NB: Function.prototype.call is only inlined when the thisValue argument is present.
const thisValue = null;
for (let i = 0; i < 100; ++i) {
let obj = Object.call(thisValue);
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) funCallNoArgs();
function callObjectArg() {
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = Object(x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) callObjectArg();
function constructObjectArg() {
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = new Object(x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) constructObjectArg();
function funCallObjectArg() {
// NB: Function.prototype.call is only inlined when the thisValue argument is present.
const thisValue = null;
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = Object.call(thisValue, x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) funCallObjectArg();