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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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40 external_short_elements : 6, | 40 external_short_elements : 6, |
41 external_unsigned_short_elements : 7, | 41 external_unsigned_short_elements : 7, |
42 external_int_elements : 8, | 42 external_int_elements : 8, |
43 external_unsigned_int_elements : 9, | 43 external_unsigned_int_elements : 9, |
44 external_float_elements : 10, | 44 external_float_elements : 10, |
45 external_double_elements : 11, | 45 external_double_elements : 11, |
46 external_pixel_elements : 12 | 46 external_pixel_elements : 12 |
47 } | 47 } |
48 | 48 |
49 // We expect an object to only be of one element kind. | 49 // We expect an object to only be of one element kind. |
50 function assertKind(expected, obj){ | 50 function assertKind(expected, obj) { |
51 if (support_smi_only_arrays) { | 51 if (support_smi_only_arrays) { |
52 assertEquals(expected == element_kind.fast_smi_only_elements, | 52 assertEquals(expected == element_kind.fast_smi_only_elements, |
53 %HasFastSmiOnlyElements(obj)); | 53 %HasFastSmiOnlyElements(obj)); |
54 assertEquals(expected == element_kind.fast_elements, | 54 assertEquals(expected == element_kind.fast_elements, |
55 %HasFastElements(obj)); | 55 %HasFastElements(obj)); |
56 } else { | 56 } else { |
57 assertEquals(expected == element_kind.fast_elements || | 57 assertEquals(expected == element_kind.fast_elements || |
58 expected == element_kind.fast_smi_only_elements, | 58 expected == element_kind.fast_smi_only_elements, |
59 %HasFastElements(obj)); | 59 %HasFastElements(obj)); |
60 } | 60 } |
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93 | 93 |
94 var too = [1,2,3]; | 94 var too = [1,2,3]; |
95 assertKind(element_kind.fast_smi_only_elements, too); | 95 assertKind(element_kind.fast_smi_only_elements, too); |
96 too.dance = 0xD15C0; | 96 too.dance = 0xD15C0; |
97 too.drink = 0xC0C0A; | 97 too.drink = 0xC0C0A; |
98 assertKind(element_kind.fast_smi_only_elements, too); | 98 assertKind(element_kind.fast_smi_only_elements, too); |
99 | 99 |
100 // Make sure the element kind transitions from smionly when a non-smi is stored. | 100 // Make sure the element kind transitions from smionly when a non-smi is stored. |
101 var you = new Array(); | 101 var you = new Array(); |
102 assertKind(element_kind.fast_smi_only_elements, you); | 102 assertKind(element_kind.fast_smi_only_elements, you); |
103 for(i = 0; i < 1337; i++) { | 103 for (var i = 0; i < 1337; i++) { |
104 var val = i; | 104 var val = i; |
105 if (i == 1336) { | 105 if (i == 1336) { |
106 assertKind(element_kind.fast_smi_only_elements, you); | 106 assertKind(element_kind.fast_smi_only_elements, you); |
107 val = new Object(); | 107 val = new Object(); |
108 } | 108 } |
109 you[i] = val; | 109 you[i] = val; |
110 } | 110 } |
111 assertKind(element_kind.fast_elements, you); | 111 assertKind(element_kind.fast_elements, you); |
112 | 112 |
113 assertKind(element_kind.dictionary_elements, new Array(0xC0C0A)); | 113 assertKind(element_kind.dictionary_elements, new Array(0xDECAF)); |
114 | 114 |
115 // fast_double_elements not yet available | 115 var fast_double_array = new Array(0xDECAF); |
116 | 116 for (var i = 0; i < 0xDECAF; i++) fast_double_array[i] = i / 2; |
117 assertKind(element_kind.fast_double_elements, fast_double_array); | |
William Hesse
2011/09/23 13:25:22
Why is the test for fast double elements in the ch
Yang
2011/09/23 14:19:12
Yes, this should have been a separate CL. Kind of
| |
117 | 118 |
118 assertKind(element_kind.external_byte_elements, new Int8Array(9001)); | 119 assertKind(element_kind.external_byte_elements, new Int8Array(9001)); |
119 assertKind(element_kind.external_unsigned_byte_elements, new Uint8Array(007)); | 120 assertKind(element_kind.external_unsigned_byte_elements, new Uint8Array(007)); |
120 assertKind(element_kind.external_short_elements, new Int16Array(666)); | 121 assertKind(element_kind.external_short_elements, new Int16Array(666)); |
121 assertKind(element_kind.external_unsigned_short_elements, new Uint16Array(42)); | 122 assertKind(element_kind.external_unsigned_short_elements, new Uint16Array(42)); |
122 assertKind(element_kind.external_int_elements, new Int32Array(0xF)); | 123 assertKind(element_kind.external_int_elements, new Int32Array(0xF)); |
123 assertKind(element_kind.external_unsigned_int_elements, new Uint32Array(23)); | 124 assertKind(element_kind.external_unsigned_int_elements, new Uint32Array(23)); |
124 assertKind(element_kind.external_float_elements, new Float32Array(7)); | 125 assertKind(element_kind.external_float_elements, new Float32Array(7)); |
125 assertKind(element_kind.external_double_elements, new Float64Array(0)); | 126 assertKind(element_kind.external_double_elements, new Float64Array(0)); |
126 assertKind(element_kind.external_pixel_elements, new PixelArray(512)); | 127 assertKind(element_kind.external_pixel_elements, new PixelArray(512)); |
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