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Side by Side Diff: src/value-serializer.h

Issue 2259633002: Blink-compatible serialization of arrays, both dense and sparse. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Micro-tweak: let NewJSArray construct the elements. Created 4 years, 4 months ago
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1 // Copyright 2016 the V8 project authors. All rights reserved. 1 // Copyright 2016 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_VALUE_SERIALIZER_H_ 5 #ifndef V8_VALUE_SERIALIZER_H_
6 #define V8_VALUE_SERIALIZER_H_ 6 #define V8_VALUE_SERIALIZER_H_
7 7
8 #include <cstdint> 8 #include <cstdint>
9 #include <vector> 9 #include <vector>
10 10
(...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after
65 void WriteTwoByteString(Vector<const uc16> chars); 65 void WriteTwoByteString(Vector<const uc16> chars);
66 uint8_t* ReserveRawBytes(size_t bytes); 66 uint8_t* ReserveRawBytes(size_t bytes);
67 67
68 // Writing V8 objects of various kinds. 68 // Writing V8 objects of various kinds.
69 void WriteOddball(Oddball* oddball); 69 void WriteOddball(Oddball* oddball);
70 void WriteSmi(Smi* smi); 70 void WriteSmi(Smi* smi);
71 void WriteHeapNumber(HeapNumber* number); 71 void WriteHeapNumber(HeapNumber* number);
72 void WriteString(Handle<String> string); 72 void WriteString(Handle<String> string);
73 Maybe<bool> WriteJSReceiver(Handle<JSReceiver> receiver) WARN_UNUSED_RESULT; 73 Maybe<bool> WriteJSReceiver(Handle<JSReceiver> receiver) WARN_UNUSED_RESULT;
74 Maybe<bool> WriteJSObject(Handle<JSObject> object) WARN_UNUSED_RESULT; 74 Maybe<bool> WriteJSObject(Handle<JSObject> object) WARN_UNUSED_RESULT;
75 Maybe<bool> WriteJSArray(Handle<JSArray> array) WARN_UNUSED_RESULT;
75 76
76 /* 77 /*
77 * Reads the specified keys from the object and writes key-value pairs to the 78 * Reads the specified keys from the object and writes key-value pairs to the
78 * buffer. Returns the number of keys actually written, which may be smaller 79 * buffer. Returns the number of keys actually written, which may be smaller
79 * if some keys are not own properties when accessed. 80 * if some keys are not own properties when accessed.
80 */ 81 */
81 Maybe<uint32_t> WriteJSObjectProperties( 82 Maybe<uint32_t> WriteJSObjectProperties(
82 Handle<JSObject> object, Handle<FixedArray> keys) WARN_UNUSED_RESULT; 83 Handle<JSObject> object, Handle<FixedArray> keys) WARN_UNUSED_RESULT;
83 84
84 Isolate* const isolate_; 85 Isolate* const isolate_;
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after
133 template <typename T> 134 template <typename T>
134 Maybe<T> ReadZigZag() WARN_UNUSED_RESULT; 135 Maybe<T> ReadZigZag() WARN_UNUSED_RESULT;
135 Maybe<double> ReadDouble() WARN_UNUSED_RESULT; 136 Maybe<double> ReadDouble() WARN_UNUSED_RESULT;
136 Maybe<Vector<const uint8_t>> ReadRawBytes(int size) WARN_UNUSED_RESULT; 137 Maybe<Vector<const uint8_t>> ReadRawBytes(int size) WARN_UNUSED_RESULT;
137 138
138 // Reading V8 objects of specific kinds. 139 // Reading V8 objects of specific kinds.
139 // The tag is assumed to have already been read. 140 // The tag is assumed to have already been read.
140 MaybeHandle<String> ReadUtf8String() WARN_UNUSED_RESULT; 141 MaybeHandle<String> ReadUtf8String() WARN_UNUSED_RESULT;
141 MaybeHandle<String> ReadTwoByteString() WARN_UNUSED_RESULT; 142 MaybeHandle<String> ReadTwoByteString() WARN_UNUSED_RESULT;
142 MaybeHandle<JSObject> ReadJSObject() WARN_UNUSED_RESULT; 143 MaybeHandle<JSObject> ReadJSObject() WARN_UNUSED_RESULT;
144 MaybeHandle<JSArray> ReadSparseJSArray() WARN_UNUSED_RESULT;
145 MaybeHandle<JSArray> ReadDenseJSArray() WARN_UNUSED_RESULT;
143 146
144 /* 147 /*
145 * Reads key-value pairs into the object until the specified end tag is 148 * Reads key-value pairs into the object until the specified end tag is
146 * encountered. If successful, returns the number of properties read. 149 * encountered. If successful, returns the number of properties read.
147 */ 150 */
148 Maybe<uint32_t> ReadJSObjectProperties(Handle<JSObject> object, 151 Maybe<uint32_t> ReadJSObjectProperties(Handle<JSObject> object,
149 SerializationTag end_tag); 152 SerializationTag end_tag);
150 153
151 // Manipulating the map from IDs to reified objects. 154 // Manipulating the map from IDs to reified objects.
152 bool HasObjectWithID(uint32_t id); 155 bool HasObjectWithID(uint32_t id);
153 MaybeHandle<JSReceiver> GetObjectWithID(uint32_t id); 156 MaybeHandle<JSReceiver> GetObjectWithID(uint32_t id);
154 void AddObjectWithID(uint32_t id, Handle<JSReceiver> object); 157 void AddObjectWithID(uint32_t id, Handle<JSReceiver> object);
155 158
156 Isolate* const isolate_; 159 Isolate* const isolate_;
157 const uint8_t* position_; 160 const uint8_t* position_;
158 const uint8_t* const end_; 161 const uint8_t* const end_;
159 uint32_t version_ = 0; 162 uint32_t version_ = 0;
160 Handle<SeededNumberDictionary> id_map_; // Always a global handle. 163 Handle<SeededNumberDictionary> id_map_; // Always a global handle.
161 uint32_t next_id_ = 0; 164 uint32_t next_id_ = 0;
162 165
163 DISALLOW_COPY_AND_ASSIGN(ValueDeserializer); 166 DISALLOW_COPY_AND_ASSIGN(ValueDeserializer);
164 }; 167 };
165 168
166 } // namespace internal 169 } // namespace internal
167 } // namespace v8 170 } // namespace v8
168 171
169 #endif // V8_VALUE_SERIALIZER_H_ 172 #endif // V8_VALUE_SERIALIZER_H_
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