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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
"use strict";
function test(expected, f) {
%PrepareFunctionForOptimization(f);
assertEquals(expected, f());
assertEquals(expected, f());
%OptimizeFunctionOnNextCall(f);
assertEquals(expected, f());
assertEquals(expected, f());
}
function testThrows(f) {
%PrepareFunctionForOptimization(f);
assertThrows(f);
assertThrows(f);
%OptimizeFunctionOnNextCall(f);
assertThrows(f);
assertThrows(f);
}
function f1() { return undefined; }
test(void 0, f1);
function f2() { return void 0; }
test(void 0, f2);
function f3() { return void 0 == void 0; }
test(true, f3);
function f4() { return void 0 == undefined; }
test(true, f4);
function f5() { return undefined == void 0; }
test(true, f5);
function f6() { return "" + undefined; }
test("undefined", f6);
function f7() { return void 0 === void 0; }
test(true, f7);
function f8() { return void 0 === undefined; }
test(true, f8);
function f9() { return undefined === void 0; }
test(true, f9);
function g1() { return this; }
test(void 0, g1);
function g2() { return void 0; }
test(void 0, g2);
function g3() { return void 0 == void 0; }
test(true, g3);
function g4() { return void 0 == this; }
test(true, g4);
function g5() { return this == void 0; }
test(true, g5);
function g6() { return "" + this; }
test("undefined", g6);
function g7() { return void 0 === void 0; }
test(true, g7);
function g8() { return void 0 === this; }
test(true, g8);
function g9() { return this === void 0; }
test(true, g9);
testThrows(function() { undefined = 111; });
function h1() { return undefined; }
test(void 0, h1);
function h2() { return void 0; }
test(void 0, h2);
function h3() { return void 0 == void 0; }
test(true, h3);
function h4() { return void 0 == undefined; }
test(true, h4);
function h5() { return undefined == void 0; }
test(true, h5);
function h6() { return "" + undefined; }
test("undefined", h6);
function h7() { return void 0 === void 0; }
test(true, h7);
function h8() { return void 0 === undefined; }
test(true, h8);
function h9() { return undefined === void 0; }
test(true, h9);
// -------------
function k1() { return this; }
test(void 0, k1);
function k2() { return void 0; }
test(void 0, k2);
function k3() { return this === undefined; }
test(true, k3);
function k4() { return void 0 === this; }
test(true, k4);
function k5() { return this === void 0; }
test(true, k5);
function k6() { return "" + this; }
test("undefined", k6);
function k7() { return void 0 === void 0; }
test(true, k7);
function k8() { return void 0 === this; }
test(true, k8);
function k9() { return this === void 0; }
test(true, k9);
// -------------
function m1() { return this.undefined; }
testThrows(m1);
function m2() { return void 0; }
test(void 0, m2);
function m3() { return this === undefined; }
test(true, m3);
function m4() { return void 0 === this.undefined; }
testThrows(m4);
function m5() { return this.undefined == void 0; }
testThrows(m5);
function m6() { return "" + this.undefined; }
testThrows(m6);
function m7() { return void 0 === void 0; }
test(true, m7);
function m8() { return void 0 === this.undefined; }
testThrows(m8);
function m9() { return this.undefined === void 0; }
testThrows(m9);
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