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Side by Side Diff: src/objects.h

Issue 1843613002: Add initial code-stub version of Object.prototype.hasOwnProperty (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase Created 4 years, 8 months ago
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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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3081 // descriptors. 3081 // descriptors.
3082 static int LengthFor(int number_of_descriptors) { 3082 static int LengthFor(int number_of_descriptors) {
3083 return ToKeyIndex(number_of_descriptors); 3083 return ToKeyIndex(number_of_descriptors);
3084 } 3084 }
3085 3085
3086 static int ToDetailsIndex(int descriptor_number) { 3086 static int ToDetailsIndex(int descriptor_number) {
3087 return kFirstIndex + (descriptor_number * kDescriptorSize) + 3087 return kFirstIndex + (descriptor_number * kDescriptorSize) +
3088 kDescriptorDetails; 3088 kDescriptorDetails;
3089 } 3089 }
3090 3090
3091 // Conversion from descriptor number to array indices.
3092 static int ToKeyIndex(int descriptor_number) {
3093 return kFirstIndex + (descriptor_number * kDescriptorSize) + kDescriptorKey;
3094 }
3095
3091 private: 3096 private:
3092 // An entry in a DescriptorArray, represented as an (array, index) pair. 3097 // An entry in a DescriptorArray, represented as an (array, index) pair.
3093 class Entry { 3098 class Entry {
3094 public: 3099 public:
3095 inline explicit Entry(DescriptorArray* descs, int index) : 3100 inline explicit Entry(DescriptorArray* descs, int index) :
3096 descs_(descs), index_(index) { } 3101 descs_(descs), index_(index) { }
3097 3102
3098 inline PropertyType type(); 3103 inline PropertyType type();
3099 inline Object* GetCallbackObject(); 3104 inline Object* GetCallbackObject();
3100 3105
3101 private: 3106 private:
3102 DescriptorArray* descs_; 3107 DescriptorArray* descs_;
3103 int index_; 3108 int index_;
3104 }; 3109 };
3105 3110
3106 // Conversion from descriptor number to array indices.
3107 static int ToKeyIndex(int descriptor_number) {
3108 return kFirstIndex +
3109 (descriptor_number * kDescriptorSize) +
3110 kDescriptorKey;
3111 }
3112
3113 static int ToValueIndex(int descriptor_number) { 3111 static int ToValueIndex(int descriptor_number) {
3114 return kFirstIndex + 3112 return kFirstIndex +
3115 (descriptor_number * kDescriptorSize) + 3113 (descriptor_number * kDescriptorSize) +
3116 kDescriptorValue; 3114 kDescriptorValue;
3117 } 3115 }
3118 3116
3119 // Transfer a complete descriptor from the src descriptor array to this 3117 // Transfer a complete descriptor from the src descriptor array to this
3120 // descriptor array. 3118 // descriptor array.
3121 void CopyFrom(int index, DescriptorArray* src); 3119 void CopyFrom(int index, DescriptorArray* src);
3122 3120
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10919 } 10917 }
10920 return value; 10918 return value;
10921 } 10919 }
10922 }; 10920 };
10923 10921
10924 10922
10925 } // NOLINT, false-positive due to second-order macros. 10923 } // NOLINT, false-positive due to second-order macros.
10926 } // NOLINT, false-positive due to second-order macros. 10924 } // NOLINT, false-positive due to second-order macros.
10927 10925
10928 #endif // V8_OBJECTS_H_ 10926 #endif // V8_OBJECTS_H_
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