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Issue 6879009: Support Float64Arrays (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: address comments Created 9 years, 8 months ago
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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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56 // "constant", but not read-only). 56 // "constant", but not read-only).
57 a = new Int32Array(2); 57 a = new Int32Array(2);
58 assertEquals(4, a.BYTES_PER_ELEMENT); 58 assertEquals(4, a.BYTES_PER_ELEMENT);
59 a.BYTES_PER_ELEMENT = 42; 59 a.BYTES_PER_ELEMENT = 42;
60 assertEquals(42, a.BYTES_PER_ELEMENT); 60 assertEquals(42, a.BYTES_PER_ELEMENT);
61 a = new Uint8Array(2); 61 a = new Uint8Array(2);
62 assertEquals(1, a.BYTES_PER_ELEMENT); 62 assertEquals(1, a.BYTES_PER_ELEMENT);
63 a = new Int16Array(2); 63 a = new Int16Array(2);
64 assertEquals(2, a.BYTES_PER_ELEMENT); 64 assertEquals(2, a.BYTES_PER_ELEMENT);
65 65
66 // Test Float64Arrays.
67 function get(a, index) {
68 return a[index];
69 }
70 function set(a, index, value) {
71 a[index] = value;
72 }
73
74 var array = new Float64Array(2);
75 for (var i = 0; i < 5; i++) {
76 set(array, 0, 2.5);
77 assertEquals(2.5, array[0]);
78 }
79 %OptimizeFunctionOnNextCall(set);
80 set(array, 0, 2.5);
81 assertEquals(2.5, array[0]);
82 set(array, 1, 3.5);
83 assertEquals(3.5, array[1]);
84 for (var i = 0; i < 5; i++) {
85 assertEquals(2.5, get(array, 0));
86 assertEquals(3.5, array[1]);
87 }
88 %OptimizeFunctionOnNextCall(get);
89 assertEquals(2.5, get(array, 0));
90 assertEquals(3.5, get(array, 1));
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