v8/test/mjsunit/harmony/to-number.js
bmeurer 3c164506f5 [es6] Implement Date.prototype[@@toPrimitive] as C++ builtin.
This way we don't need to expose JSReceiver::OrdinaryToPrimitive
as runtime function, and we don't need the separate JS trampoline.

This also adds tests for ToPrimitive on date objects, which are
special.

R=mstarzinger@chromium.org
BUG=v8:4307
LOG=n

Review URL: https://codereview.chromium.org/1324713002

Cr-Commit-Position: refs/heads/master@{#30473}
2015-08-31 12:53:10 +00:00

62 lines
1.6 KiB
JavaScript

// 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
assertEquals(1, %ToNumber(1));
assertEquals(1, %_ToNumber(1));
assertEquals(.5, %ToNumber(.5));
assertEquals(.5, %_ToNumber(.5));
assertEquals(0, %ToNumber(null));
assertEquals(0, %_ToNumber(null));
assertEquals(1, %ToNumber(true));
assertEquals(1, %_ToNumber(true));
assertEquals(0, %ToNumber(false));
assertEquals(0, %_ToNumber(false));
assertEquals(NaN, %ToNumber(undefined));
assertEquals(NaN, %_ToNumber(undefined));
assertEquals(-1, %ToNumber("-1"));
assertEquals(-1, %_ToNumber("-1"));
assertEquals(123, %ToNumber("123"));
assertEquals(123, %_ToNumber("123"));
assertEquals(NaN, %ToNumber("random text"));
assertEquals(NaN, %_ToNumber("random text"));
assertThrows(function() { %ToNumber(Symbol.toPrimitive) }, TypeError);
assertThrows(function() { %_ToNumber(Symbol.toPrimitive) }, TypeError);
var a = { toString: function() { return 54321 }};
assertEquals(54321, %ToNumber(a));
assertEquals(54321, %_ToNumber(a));
var b = { valueOf: function() { return 42 }};
assertEquals(42, %ToNumber(b));
assertEquals(42, %_ToNumber(b));
var c = {
toString: function() { return "x"},
valueOf: function() { return 123 }
};
assertEquals(123, %ToNumber(c));
assertEquals(123, %_ToNumber(c));
var d = {
[Symbol.toPrimitive]: function(hint) {
assertEquals("number", hint);
return 987654321;
}
};
assertEquals(987654321, %ToNumber(d));
assertEquals(987654321, %_ToNumber(d));
var e = new Date(0);
assertEquals(0, %ToNumber(e));
assertEquals(0, %_ToNumber(e));