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// 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.
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:
// - always loads things from snapshot.
// - loads from snapshot or bootstraps from scratch,
// controlled by the |create_heap_objects| flag.
// For testing, the implementation in can be chosen
// to force the behavior of at runtime.
// The actual implementations of generation of builtins and handlers is in
// and, and is
// linked in by the latter two Delegate implementations.
class SetupIsolateDelegate {
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);
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_