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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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| 28 #include <stdlib.h> | 28 #include <stdlib.h> |
| 29 #include <string.h> | 29 #include <string.h> |
| 30 #include "v8.h" | 30 #include "v8.h" |
| 31 #include "cctest.h" | 31 #include "cctest.h" |
| 32 | 32 |
| 33 using namespace v8::internal; | 33 using namespace v8::internal; |
| 34 | 34 |
| 35 // Use a testing allocator that clears memory before deletion. | 35 // Use a testing allocator that clears memory before deletion. |
| 36 class ZeroingAllocationPolicy { | 36 class ZeroingAllocationPolicy { |
| 37 public: | 37 public: |
| 38 static void* New(size_t size) { | 38 void* New(size_t size) { |
| 39 // Stash the size in the first word to use for Delete. | 39 // Stash the size in the first word to use for Delete. |
| 40 size_t true_size = size + sizeof(size_t); | 40 size_t true_size = size + sizeof(size_t); |
| 41 size_t* result = reinterpret_cast<size_t*>(malloc(true_size)); | 41 size_t* result = reinterpret_cast<size_t*>(malloc(true_size)); |
| 42 if (result == NULL) return result; | 42 if (result == NULL) return result; |
| 43 *result = true_size; | 43 *result = true_size; |
| 44 return result + 1; | 44 return result + 1; |
| 45 } | 45 } |
| 46 | 46 |
| 47 static void Delete(void* ptr) { | 47 void Delete(void* ptr) { |
| 48 size_t* true_ptr = reinterpret_cast<size_t*>(ptr) - 1; | 48 size_t* true_ptr = reinterpret_cast<size_t*>(ptr) - 1; |
| 49 memset(true_ptr, 0, *true_ptr); | 49 memset(true_ptr, 0, *true_ptr); |
| 50 free(true_ptr); | 50 free(true_ptr); |
| 51 } | 51 } |
| 52 }; | 52 }; |
| 53 | 53 |
| 54 // Check that we can add (a reference to) an element of the list | 54 // Check that we can add (a reference to) an element of the list |
| 55 // itself. | 55 // itself. |
| 56 TEST(ListAdd) { | 56 TEST(ListAdd) { |
| 57 // Add elements to the list to grow it to its capacity. | 57 // Add elements to the list to grow it to its capacity. |
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| 131 | 131 |
| 132 | 132 |
| 133 TEST(Clear) { | 133 TEST(Clear) { |
| 134 List<int> list(4); | 134 List<int> list(4); |
| 135 CHECK_EQ(0, list.length()); | 135 CHECK_EQ(0, list.length()); |
| 136 for (int i = 0; i < 4; ++i) list.Add(i); | 136 for (int i = 0; i < 4; ++i) list.Add(i); |
| 137 CHECK_EQ(4, list.length()); | 137 CHECK_EQ(4, list.length()); |
| 138 list.Clear(); | 138 list.Clear(); |
| 139 CHECK_EQ(0, list.length()); | 139 CHECK_EQ(0, list.length()); |
| 140 } | 140 } |
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