| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_OBJECTS_JS_COLLECTION_H_ |
| #define V8_OBJECTS_JS_COLLECTION_H_ |
| |
| #include "src/objects/js-collection-iterator.h" |
| #include "src/objects/objects.h" |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/objects/object-macros.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class OrderedHashSet; |
| class OrderedHashMap; |
| |
| class JSCollection : public JSObject { |
| public: |
| DECL_CAST(JSCollection) |
| |
| // [table]: the backing hash table |
| DECL_ACCESSORS(table, Object) |
| |
| // Layout description. |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, |
| TORQUE_GENERATED_JSCOLLECTION_FIELDS) |
| |
| static const int kAddFunctionDescriptorIndex = 3; |
| |
| DECL_VERIFIER(JSCollection) |
| |
| OBJECT_CONSTRUCTORS(JSCollection, JSObject); |
| }; |
| |
| // The JSSet describes EcmaScript Harmony sets |
| class JSSet : public JSCollection { |
| public: |
| DECL_CAST(JSSet) |
| |
| static void Initialize(Handle<JSSet> set, Isolate* isolate); |
| static void Clear(Isolate* isolate, Handle<JSSet> set); |
| |
| // Dispatched behavior. |
| DECL_PRINTER(JSSet) |
| DECL_VERIFIER(JSSet) |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSCollection::kHeaderSize, |
| TORQUE_GENERATED_JSWEAK_SET_FIELDS) |
| |
| OBJECT_CONSTRUCTORS(JSSet, JSCollection); |
| }; |
| |
| class JSSetIterator |
| : public OrderedHashTableIterator<JSSetIterator, OrderedHashSet> { |
| public: |
| // Dispatched behavior. |
| DECL_PRINTER(JSSetIterator) |
| DECL_VERIFIER(JSSetIterator) |
| |
| DECL_CAST(JSSetIterator) |
| |
| OBJECT_CONSTRUCTORS(JSSetIterator, |
| OrderedHashTableIterator<JSSetIterator, OrderedHashSet>); |
| }; |
| |
| // The JSMap describes EcmaScript Harmony maps |
| class JSMap : public JSCollection { |
| public: |
| DECL_CAST(JSMap) |
| |
| static void Initialize(Handle<JSMap> map, Isolate* isolate); |
| static void Clear(Isolate* isolate, Handle<JSMap> map); |
| |
| // Dispatched behavior. |
| DECL_PRINTER(JSMap) |
| DECL_VERIFIER(JSMap) |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSCollection::kHeaderSize, |
| TORQUE_GENERATED_JSWEAK_MAP_FIELDS) |
| |
| OBJECT_CONSTRUCTORS(JSMap, JSCollection); |
| }; |
| |
| class JSMapIterator |
| : public OrderedHashTableIterator<JSMapIterator, OrderedHashMap> { |
| public: |
| // Dispatched behavior. |
| DECL_PRINTER(JSMapIterator) |
| DECL_VERIFIER(JSMapIterator) |
| |
| DECL_CAST(JSMapIterator) |
| |
| // Returns the current value of the iterator. This should only be called when |
| // |HasMore| returns true. |
| inline Object CurrentValue(); |
| |
| OBJECT_CONSTRUCTORS(JSMapIterator, |
| OrderedHashTableIterator<JSMapIterator, OrderedHashMap>); |
| }; |
| |
| // Base class for both JSWeakMap and JSWeakSet |
| class JSWeakCollection : public JSObject { |
| public: |
| DECL_CAST(JSWeakCollection) |
| |
| // [table]: the backing hash table mapping keys to values. |
| DECL_ACCESSORS(table, Object) |
| |
| static void Initialize(Handle<JSWeakCollection> collection, Isolate* isolate); |
| V8_EXPORT_PRIVATE static void Set(Handle<JSWeakCollection> collection, |
| Handle<Object> key, Handle<Object> value, |
| int32_t hash); |
| static bool Delete(Handle<JSWeakCollection> collection, Handle<Object> key, |
| int32_t hash); |
| static Handle<JSArray> GetEntries(Handle<JSWeakCollection> holder, |
| int max_entries); |
| |
| DECL_VERIFIER(JSWeakCollection) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, |
| TORQUE_GENERATED_JSWEAK_COLLECTION_FIELDS) |
| |
| static const int kAddFunctionDescriptorIndex = 3; |
| |
| // Iterates the function object according to the visiting policy. |
| class BodyDescriptorImpl; |
| |
| // Visit the whole object. |
| using BodyDescriptor = BodyDescriptorImpl; |
| |
| static const int kSizeOfAllWeakCollections = kHeaderSize; |
| |
| OBJECT_CONSTRUCTORS(JSWeakCollection, JSObject); |
| }; |
| |
| // The JSWeakMap describes EcmaScript Harmony weak maps |
| class JSWeakMap : public JSWeakCollection { |
| public: |
| DECL_CAST(JSWeakMap) |
| |
| // Dispatched behavior. |
| DECL_PRINTER(JSWeakMap) |
| DECL_VERIFIER(JSWeakMap) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSWeakCollection::kHeaderSize, |
| TORQUE_GENERATED_JSWEAK_MAP_FIELDS) |
| STATIC_ASSERT(kSize == kSizeOfAllWeakCollections); |
| OBJECT_CONSTRUCTORS(JSWeakMap, JSWeakCollection); |
| }; |
| |
| // The JSWeakSet describes EcmaScript Harmony weak sets |
| class JSWeakSet : public JSWeakCollection { |
| public: |
| DECL_CAST(JSWeakSet) |
| |
| // Dispatched behavior. |
| DECL_PRINTER(JSWeakSet) |
| DECL_VERIFIER(JSWeakSet) |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSWeakCollection::kHeaderSize, |
| TORQUE_GENERATED_JSWEAK_SET_FIELDS) |
| STATIC_ASSERT(kSize == kSizeOfAllWeakCollections); |
| |
| OBJECT_CONSTRUCTORS(JSWeakSet, JSWeakCollection); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #include "src/objects/object-macros-undef.h" |
| |
| #endif // V8_OBJECTS_JS_COLLECTION_H_ |