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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This files contains runtime support implemented in JavaScript. | 5 // This files contains runtime support implemented in JavaScript. |
6 | 6 |
7 // CAUTION: Some of the functions specified in this file are called | 7 // CAUTION: Some of the functions specified in this file are called |
8 // directly from compiled code. These are the functions with names in | 8 // directly from compiled code. These are the functions with names in |
9 // ALL CAPS. The compiled code passes the first argument in 'this'. | 9 // ALL CAPS. The compiled code passes the first argument in 'this'. |
10 | 10 |
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56 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal | 56 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal |
57 // String or boolean. | 57 // String or boolean. |
58 return %NumberEquals(x, %to_number_fun(y)); | 58 return %NumberEquals(x, %to_number_fun(y)); |
59 } | 59 } |
60 y = %to_primitive(y, NO_HINT); | 60 y = %to_primitive(y, NO_HINT); |
61 } | 61 } |
62 } else if (IS_STRING(x)) { | 62 } else if (IS_STRING(x)) { |
63 while (true) { | 63 while (true) { |
64 if (IS_STRING(y)) return %StringEquals(x, y); | 64 if (IS_STRING(y)) return %StringEquals(x, y); |
65 if (IS_NUMBER(y)) return %NumberEquals(%to_number_fun(x), y); | 65 if (IS_NUMBER(y)) return %NumberEquals(%to_number_fun(x), y); |
66 if (IS_BOOLEAN(y)) return %NumberEquals(%to_number_fun(x), %to_number_fu
n(y)); | 66 if (IS_BOOLEAN(y)) { |
| 67 return %NumberEquals(%to_number_fun(x), %to_number_fun(y)); |
| 68 } |
67 if (IS_NULL_OR_UNDEFINED(y)) return 1; // not equal | 69 if (IS_NULL_OR_UNDEFINED(y)) return 1; // not equal |
68 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal | 70 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal |
69 y = %to_primitive(y, NO_HINT); | 71 y = %to_primitive(y, NO_HINT); |
70 } | 72 } |
71 } else if (IS_SYMBOL(x)) { | 73 } else if (IS_SYMBOL(x)) { |
72 if (IS_SYMBOL(y)) return %_ObjectEquals(x, y) ? 0 : 1; | 74 if (IS_SYMBOL(y)) return %_ObjectEquals(x, y) ? 0 : 1; |
73 return 1; // not equal | 75 return 1; // not equal |
74 } else if (IS_BOOLEAN(x)) { | 76 } else if (IS_BOOLEAN(x)) { |
75 if (IS_BOOLEAN(y)) return %_ObjectEquals(x, y) ? 0 : 1; | 77 if (IS_BOOLEAN(y)) return %_ObjectEquals(x, y) ? 0 : 1; |
76 if (IS_NULL_OR_UNDEFINED(y)) return 1; | 78 if (IS_NULL_OR_UNDEFINED(y)) return 1; |
77 if (IS_NUMBER(y)) return %NumberEquals(%to_number_fun(x), y); | 79 if (IS_NUMBER(y)) return %NumberEquals(%to_number_fun(x), y); |
78 if (IS_STRING(y)) return %NumberEquals(%to_number_fun(x), %to_number_fun(y
)); | 80 if (IS_STRING(y)) { |
| 81 return %NumberEquals(%to_number_fun(x), %to_number_fun(y)); |
| 82 } |
79 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal | 83 if (IS_SYMBOL(y) || IS_SIMD_VALUE(y)) return 1; // not equal |
80 // y is object. | 84 // y is object. |
81 x = %to_number_fun(x); | 85 x = %to_number_fun(x); |
82 y = %to_primitive(y, NO_HINT); | 86 y = %to_primitive(y, NO_HINT); |
83 } else if (IS_NULL_OR_UNDEFINED(x)) { | 87 } else if (IS_NULL_OR_UNDEFINED(x)) { |
84 return IS_NULL_OR_UNDEFINED(y) ? 0 : 1; | 88 return IS_NULL_OR_UNDEFINED(y) ? 0 : 1; |
85 } else if (IS_SIMD_VALUE(x)) { | 89 } else if (IS_SIMD_VALUE(x)) { |
86 if (!IS_SIMD_VALUE(y)) return 1; // not equal | 90 if (!IS_SIMD_VALUE(y)) return 1; // not equal |
87 return %SimdEquals(x, y); | 91 return %SimdEquals(x, y); |
88 } else { | 92 } else { |
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895 utils.Export(function(to) { | 899 utils.Export(function(to) { |
896 to.ToBoolean = ToBoolean; | 900 to.ToBoolean = ToBoolean; |
897 to.ToLength = ToLength; | 901 to.ToLength = ToLength; |
898 to.ToName = ToName; | 902 to.ToName = ToName; |
899 to.ToNumber = ToNumber; | 903 to.ToNumber = ToNumber; |
900 to.ToPrimitive = ToPrimitive; | 904 to.ToPrimitive = ToPrimitive; |
901 to.ToString = ToString; | 905 to.ToString = ToString; |
902 }); | 906 }); |
903 | 907 |
904 }) | 908 }) |
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