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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/bitmap.h" | 5 #include "vm/bitmap.h" |
6 | 6 |
7 #include "platform/assert.h" | 7 #include "platform/assert.h" |
8 #include "vm/object.h" | 8 #include "vm/object.h" |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
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65 } | 65 } |
66 | 66 |
67 | 67 |
68 void BitmapBuilder::SetRange(intptr_t min, intptr_t max, bool value) { | 68 void BitmapBuilder::SetRange(intptr_t min, intptr_t max, bool value) { |
69 for (intptr_t i = min; i <= max; i++) { | 69 for (intptr_t i = min; i <= max; i++) { |
70 Set(i, value); | 70 Set(i, value); |
71 } | 71 } |
72 } | 72 } |
73 | 73 |
74 | 74 |
| 75 void BitmapBuilder::Print() const { |
| 76 for (intptr_t i = 0; i < Length(); i++) { |
| 77 if (Get(i)) { |
| 78 OS::Print("1"); |
| 79 } else { |
| 80 OS::Print("0"); |
| 81 } |
| 82 } |
| 83 } |
| 84 |
| 85 |
75 bool BitmapBuilder::GetBit(intptr_t bit_offset) const { | 86 bool BitmapBuilder::GetBit(intptr_t bit_offset) const { |
76 if (!InRange(bit_offset)) { | 87 if (!InRange(bit_offset)) { |
77 return false; | 88 return false; |
78 } | 89 } |
79 intptr_t byte_offset = bit_offset >> kBitsPerByteLog2; | 90 intptr_t byte_offset = bit_offset >> kBitsPerByteLog2; |
80 ASSERT(byte_offset < data_size_in_bytes_); | 91 ASSERT(byte_offset < data_size_in_bytes_); |
81 intptr_t bit_remainder = bit_offset & (kBitsPerByte - 1); | 92 intptr_t bit_remainder = bit_offset & (kBitsPerByte - 1); |
82 uint8_t mask = 1U << bit_remainder; | 93 uint8_t mask = 1U << bit_remainder; |
83 ASSERT(data_ != NULL); | 94 ASSERT(data_ != NULL); |
84 return ((data_[byte_offset] & mask) != 0); | 95 return ((data_[byte_offset] & mask) != 0); |
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96 uint8_t mask = 1U << bit_remainder; | 107 uint8_t mask = 1U << bit_remainder; |
97 ASSERT(data_ != NULL); | 108 ASSERT(data_ != NULL); |
98 if (value) { | 109 if (value) { |
99 data_[byte_offset] |= mask; | 110 data_[byte_offset] |= mask; |
100 } else { | 111 } else { |
101 data_[byte_offset] &= ~mask; | 112 data_[byte_offset] &= ~mask; |
102 } | 113 } |
103 } | 114 } |
104 | 115 |
105 } // namespace dart | 116 } // namespace dart |
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