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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #ifndef V8_OBJECTS_H_ | 5 #ifndef V8_OBJECTS_H_ |
| 6 #define V8_OBJECTS_H_ | 6 #define V8_OBJECTS_H_ |
| 7 | 7 |
| 8 #include <iosfwd> | 8 #include <iosfwd> |
| 9 | 9 |
| 10 #include "src/assert-scope.h" | 10 #include "src/assert-scope.h" |
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| 3085 static int ToDetailsIndex(int descriptor_number) { | 3085 static int ToDetailsIndex(int descriptor_number) { |
| 3086 return kFirstIndex + (descriptor_number * kDescriptorSize) + | 3086 return kFirstIndex + (descriptor_number * kDescriptorSize) + |
| 3087 kDescriptorDetails; | 3087 kDescriptorDetails; |
| 3088 } | 3088 } |
| 3089 | 3089 |
| 3090 // Conversion from descriptor number to array indices. | 3090 // Conversion from descriptor number to array indices. |
| 3091 static int ToKeyIndex(int descriptor_number) { | 3091 static int ToKeyIndex(int descriptor_number) { |
| 3092 return kFirstIndex + (descriptor_number * kDescriptorSize) + kDescriptorKey; | 3092 return kFirstIndex + (descriptor_number * kDescriptorSize) + kDescriptorKey; |
| 3093 } | 3093 } |
| 3094 | 3094 |
| 3095 static int ToValueIndex(int descriptor_number) { |
| 3096 return kFirstIndex + (descriptor_number * kDescriptorSize) + |
| 3097 kDescriptorValue; |
| 3098 } |
| 3099 |
| 3095 private: | 3100 private: |
| 3096 // An entry in a DescriptorArray, represented as an (array, index) pair. | 3101 // An entry in a DescriptorArray, represented as an (array, index) pair. |
| 3097 class Entry { | 3102 class Entry { |
| 3098 public: | 3103 public: |
| 3099 inline explicit Entry(DescriptorArray* descs, int index) : | 3104 inline explicit Entry(DescriptorArray* descs, int index) : |
| 3100 descs_(descs), index_(index) { } | 3105 descs_(descs), index_(index) { } |
| 3101 | 3106 |
| 3102 inline PropertyType type(); | 3107 inline PropertyType type(); |
| 3103 inline Object* GetCallbackObject(); | 3108 inline Object* GetCallbackObject(); |
| 3104 | 3109 |
| 3105 private: | 3110 private: |
| 3106 DescriptorArray* descs_; | 3111 DescriptorArray* descs_; |
| 3107 int index_; | 3112 int index_; |
| 3108 }; | 3113 }; |
| 3109 | 3114 |
| 3110 static int ToValueIndex(int descriptor_number) { | |
| 3111 return kFirstIndex + | |
| 3112 (descriptor_number * kDescriptorSize) + | |
| 3113 kDescriptorValue; | |
| 3114 } | |
| 3115 | |
| 3116 // Transfer a complete descriptor from the src descriptor array to this | 3115 // Transfer a complete descriptor from the src descriptor array to this |
| 3117 // descriptor array. | 3116 // descriptor array. |
| 3118 void CopyFrom(int index, DescriptorArray* src); | 3117 void CopyFrom(int index, DescriptorArray* src); |
| 3119 | 3118 |
| 3120 inline void SetDescriptor(int descriptor_number, Descriptor* desc); | 3119 inline void SetDescriptor(int descriptor_number, Descriptor* desc); |
| 3121 | 3120 |
| 3122 // Swap first and second descriptor. | 3121 // Swap first and second descriptor. |
| 3123 inline void SwapSortedKeys(int first, int second); | 3122 inline void SwapSortedKeys(int first, int second); |
| 3124 | 3123 |
| 3125 DISALLOW_IMPLICIT_CONSTRUCTORS(DescriptorArray); | 3124 DISALLOW_IMPLICIT_CONSTRUCTORS(DescriptorArray); |
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| 10795 } | 10794 } |
| 10796 return value; | 10795 return value; |
| 10797 } | 10796 } |
| 10798 }; | 10797 }; |
| 10799 | 10798 |
| 10800 | 10799 |
| 10801 } // NOLINT, false-positive due to second-order macros. | 10800 } // NOLINT, false-positive due to second-order macros. |
| 10802 } // NOLINT, false-positive due to second-order macros. | 10801 } // NOLINT, false-positive due to second-order macros. |
| 10803 | 10802 |
| 10804 #endif // V8_OBJECTS_H_ | 10803 #endif // V8_OBJECTS_H_ |
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