Move FastAccessorAssembler from RawMachineAssembler to CodeStubAssembler.

src/compiler/fast-accessor-assembler.h

-// Copyright 2015 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_COMPILER_FAST_ACCESSOR_ASSEMBLER_H_
-#define V8_COMPILER_FAST_ACCESSOR_ASSEMBLER_H_
-
-#include <stdint.h>
-#include <vector>
-
-// Clients of this interface shouldn't depend on lots of compiler internals.
-// Do not include anything from src/compiler here!
-#include "include/v8-experimental.h"
-#include "src/base/macros.h"
-#include "src/base/smart-pointers.h"
-#include "src/handles.h"
-
-
-namespace v8 {
-namespace internal {
-
-class Code;
-class Isolate;
-class Zone;
-
-namespace compiler {
-
-class Node;
-class RawMachineAssembler;
-class RawMachineLabel;
-
-
-// This interface "exports" an aggregated subset of RawMachineAssembler, for
-// use by the API to implement Fast Dom Accessors.
-//
-// This interface is made for this single purpose only and does not attempt
-// to implement a general purpose solution. If you need one, please look at
-// RawMachineAssembler instead.
-//
-// The life cycle of a FastAccessorAssembler has two phases:
-// - After creating the instance, you can call an arbitrary sequence of
-//   builder functions to build the desired function.
-// - When done, you can Build() the accessor and query for the build results.
-//
-// You cannot call any result getters before Build() was called & successful;
-// and you cannot call any builder functions after Build() was called.
-class FastAccessorAssembler {
- public:
-  typedef v8::experimental::FastAccessorBuilder::ValueId ValueId;
-  typedef v8::experimental::FastAccessorBuilder::LabelId LabelId;
-  typedef v8::FunctionCallback FunctionCallback;
-
-  explicit FastAccessorAssembler(Isolate* isolate);
-  ~FastAccessorAssembler();
-
-  // Builder / assembler functions:
-  ValueId IntegerConstant(int int_constant);
-  ValueId GetReceiver();
-  ValueId LoadInternalField(ValueId value_id, int field_no);
-  ValueId LoadValue(ValueId value_id, int offset);
-  ValueId LoadObject(ValueId value_id, int offset);
-
-  // Builder / assembler functions for control flow.
-  void ReturnValue(ValueId value_id);
-  void CheckFlagSetOrReturnNull(ValueId value_id, int mask);
-  void CheckNotZeroOrReturnNull(ValueId value_id);
-  LabelId MakeLabel();
-  void SetLabel(LabelId label_id);
-  void CheckNotZeroOrJump(ValueId value_id, LabelId label_id);
-
-  // C++ callback.
-  ValueId Call(FunctionCallback callback, ValueId arg);
-
-  // Assemble the code.
-  MaybeHandle<Code> Build();
-
- private:
-  ValueId FromRaw(Node* node);
-  LabelId FromRaw(RawMachineLabel* label);
-  Node* FromId(ValueId value) const;
-  RawMachineLabel* FromId(LabelId value) const;
-
-  Zone* zone() { return &zone_; }
-
-  Zone zone_;
-  base::SmartPointer<RawMachineAssembler> assembler_;
-
-  // To prevent exposing the RMA internals to the outside world, we'll map
-  // Node + Label pointers integers wrapped in ValueId and LabelId instances.
-  // These vectors maintain this mapping.
-  std::vector<Node*> nodes_;
-  std::vector<RawMachineLabel*> labels_;
-
-  // Remember the current state for easy error checking. (We prefer to be
-  // strict as this class will be exposed at the API.)
-  enum { kBuilding, kBuilt, kError } state_;
-
-  DISALLOW_COPY_AND_ASSIGN(FastAccessorAssembler);
-};
-
-}  // namespace compiler
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_COMPILER_FAST_ACCESSOR_ASSEMBLER_H_