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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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/allocation.h" | 10 #include "src/allocation.h" |
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| 1907 // Tests for the fast common case for property enumeration. | 1907 // Tests for the fast common case for property enumeration. |
| 1908 bool IsSimpleEnum(); | 1908 bool IsSimpleEnum(); |
| 1909 | 1909 |
| 1910 // Returns the class name ([[Class]] property in the specification). | 1910 // Returns the class name ([[Class]] property in the specification). |
| 1911 String* class_name(); | 1911 String* class_name(); |
| 1912 | 1912 |
| 1913 // Returns the constructor name (the name (possibly, inferred name) of the | 1913 // Returns the constructor name (the name (possibly, inferred name) of the |
| 1914 // function that was used to instantiate the object). | 1914 // function that was used to instantiate the object). |
| 1915 String* constructor_name(); | 1915 String* constructor_name(); |
| 1916 | 1916 |
| 1917 Context* GetCreationContext(); |
| 1918 |
| 1917 MUST_USE_RESULT static inline Maybe<PropertyAttributes> GetPropertyAttributes( | 1919 MUST_USE_RESULT static inline Maybe<PropertyAttributes> GetPropertyAttributes( |
| 1918 Handle<JSReceiver> object, Handle<Name> name); | 1920 Handle<JSReceiver> object, Handle<Name> name); |
| 1919 MUST_USE_RESULT static inline Maybe<PropertyAttributes> | 1921 MUST_USE_RESULT static inline Maybe<PropertyAttributes> |
| 1920 GetOwnPropertyAttributes(Handle<JSReceiver> object, Handle<Name> name); | 1922 GetOwnPropertyAttributes(Handle<JSReceiver> object, Handle<Name> name); |
| 1921 | 1923 |
| 1922 MUST_USE_RESULT static inline Maybe<PropertyAttributes> GetElementAttributes( | 1924 MUST_USE_RESULT static inline Maybe<PropertyAttributes> GetElementAttributes( |
| 1923 Handle<JSReceiver> object, uint32_t index); | 1925 Handle<JSReceiver> object, uint32_t index); |
| 1924 MUST_USE_RESULT static inline Maybe<PropertyAttributes> | 1926 MUST_USE_RESULT static inline Maybe<PropertyAttributes> |
| 1925 GetOwnElementAttributes(Handle<JSReceiver> object, uint32_t index); | 1927 GetOwnElementAttributes(Handle<JSReceiver> object, uint32_t index); |
| 1926 | 1928 |
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| 2485 static const int kElementsOffset = kPropertiesOffset + kPointerSize; | 2487 static const int kElementsOffset = kPropertiesOffset + kPointerSize; |
| 2486 static const int kHeaderSize = kElementsOffset + kPointerSize; | 2488 static const int kHeaderSize = kElementsOffset + kPointerSize; |
| 2487 | 2489 |
| 2488 STATIC_ASSERT(kHeaderSize == Internals::kJSObjectHeaderSize); | 2490 STATIC_ASSERT(kHeaderSize == Internals::kJSObjectHeaderSize); |
| 2489 | 2491 |
| 2490 class BodyDescriptor : public FlexibleBodyDescriptor<kPropertiesOffset> { | 2492 class BodyDescriptor : public FlexibleBodyDescriptor<kPropertiesOffset> { |
| 2491 public: | 2493 public: |
| 2492 static inline int SizeOf(Map* map, HeapObject* object); | 2494 static inline int SizeOf(Map* map, HeapObject* object); |
| 2493 }; | 2495 }; |
| 2494 | 2496 |
| 2495 Context* GetCreationContext(); | |
| 2496 | |
| 2497 // Enqueue change record for Object.observe. May cause GC. | 2497 // Enqueue change record for Object.observe. May cause GC. |
| 2498 MUST_USE_RESULT static MaybeHandle<Object> EnqueueChangeRecord( | 2498 MUST_USE_RESULT static MaybeHandle<Object> EnqueueChangeRecord( |
| 2499 Handle<JSObject> object, const char* type, Handle<Name> name, | 2499 Handle<JSObject> object, const char* type, Handle<Name> name, |
| 2500 Handle<Object> old_value); | 2500 Handle<Object> old_value); |
| 2501 | 2501 |
| 2502 // Gets the number of currently used elements. | 2502 // Gets the number of currently used elements. |
| 2503 int GetFastElementsUsage(); | 2503 int GetFastElementsUsage(); |
| 2504 | 2504 |
| 2505 // Deletes an existing named property in a normalized object. | 2505 // Deletes an existing named property in a normalized object. |
| 2506 static void DeleteNormalizedProperty(Handle<JSObject> object, | 2506 static void DeleteNormalizedProperty(Handle<JSObject> object, |
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| 10838 // (elements + properties) in the current level. | 10838 // (elements + properties) in the current level. |
| 10839 int levelLength_ = 0; | 10839 int levelLength_ = 0; |
| 10840 | 10840 |
| 10841 DISALLOW_COPY_AND_ASSIGN(KeyAccumulator); | 10841 DISALLOW_COPY_AND_ASSIGN(KeyAccumulator); |
| 10842 }; | 10842 }; |
| 10843 | 10843 |
| 10844 } // NOLINT, false-positive due to second-order macros. | 10844 } // NOLINT, false-positive due to second-order macros. |
| 10845 } // NOLINT, false-positive due to second-order macros. | 10845 } // NOLINT, false-positive due to second-order macros. |
| 10846 | 10846 |
| 10847 #endif // V8_OBJECTS_H_ | 10847 #endif // V8_OBJECTS_H_ |
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