1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// 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(.5, %ToNumber(.5));
assertEquals(0, %ToNumber(null));
assertEquals(1, %ToNumber(true));
assertEquals(0, %ToNumber(false));
assertEquals(NaN, %ToNumber(undefined));
assertEquals(-1, %ToNumber("-1"));
assertEquals(123, %ToNumber("123"));
assertEquals(NaN, %ToNumber("random text"));
assertThrows(function() { %ToNumber(Symbol.toPrimitive) }, TypeError);
var a = { toString: function() { return 54321 }};
assertEquals(54321, %ToNumber(a));
var b = { valueOf: function() { return 42 }};
assertEquals(42, %ToNumber(b));
var c = {
toString: function() { return "x"},
valueOf: function() { return 123 }
};
assertEquals(123, %ToNumber(c));
var d = {
[Symbol.toPrimitive]: function(hint) {
assertEquals("number", hint);
return 987654321;
}
};
assertEquals(987654321, %ToNumber(d));
var e = new Date(0);
assertEquals(0, %ToNumber(e));
|