| // 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_SETUP_ISOLATE_H_ |
| #define V8_SETUP_ISOLATE_H_ |
| |
| namespace v8 { |
| namespace internal { |
| |
| class Builtins; |
| class Code; |
| class Heap; |
| class Isolate; |
| |
| namespace interpreter { |
| class Interpreter; |
| } // namespace interpreter |
| |
| // This class is an abstraction layer around initialization of components |
| // that are either deserialized from the snapshot or generated from scratch. |
| // Currently this includes builtins and interpreter bytecode handlers. |
| // There are two implementations to choose from at link time: |
| // - setup-isolate-deserialize.cc: always loads things from snapshot. |
| // - setup-isolate-full.cc: loads from snapshot or bootstraps from scratch, |
| // controlled by the |create_heap_objects| flag. |
| // For testing, the implementation in setup-isolate-for-tests.cc can be chosen |
| // to force the behavior of setup-isolate-full.cc at runtime. |
| // |
| // The actual implementations of generation of builtins and handlers is in |
| // setup-builtins-internal.cc and setup-interpreter-internal.cc, and is |
| // linked in by the latter two Delegate implementations. |
| class SetupIsolateDelegate { |
| public: |
| explicit SetupIsolateDelegate(bool create_heap_objects) |
| : create_heap_objects_(create_heap_objects) {} |
| virtual ~SetupIsolateDelegate() {} |
| |
| virtual void SetupBuiltins(Isolate* isolate); |
| |
| virtual void SetupInterpreter(interpreter::Interpreter* interpreter); |
| |
| virtual bool SetupHeap(Heap* heap); |
| |
| protected: |
| static void SetupBuiltinsInternal(Isolate* isolate); |
| static void AddBuiltin(Builtins* builtins, int index, Code* code); |
| static void PopulateWithPlaceholders(Isolate* isolate); |
| static void ReplacePlaceholders(Isolate* isolate); |
| |
| static bool SetupHeapInternal(Heap* heap); |
| |
| const bool create_heap_objects_; |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_SETUP_ISOLATE_H_ |