[interpreter] Support for ES6 class literals.

src/interpreter/bytecode-generator.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_INTERPRETER_BYTECODE_GENERATOR_H_
 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_
 
 #include "src/ast/ast.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/bytecodes.h"
@@ skipping 62 matching lines @@
   void VisitVariableLoadForAccumulatorValue(
       Variable* variable, FeedbackVectorSlot slot,
       TypeofMode typeof_mode = NOT_INSIDE_TYPEOF);
   MUST_USE_RESULT Register
   VisitVariableLoadForRegisterValue(Variable* variable, FeedbackVectorSlot slot,
                                     TypeofMode typeof_mode = NOT_INSIDE_TYPEOF);
   void VisitVariableAssignment(Variable* variable, FeedbackVectorSlot slot);
 
   void VisitArgumentsObject(Variable* variable);
   void VisitRestArgumentsArray(Variable* rest, int index);
+  void VisitClassLiteralContents(ClassLiteral* expr);
+  void VisitClassLiteralForRuntimeDefinition(ClassLiteral* expr);
+  void VisitClassLiteralProperties(ClassLiteral* expr, Register literal,
+                                   Register prototype);
+  void VisitClassLiteralStaticPrototypeWithComputedName(Register name);
   void VisitThisFunctionVariable(Variable* variable);
   void VisitNewTargetVariable(Variable* variable);
   void VisitNewLocalFunctionContext();
   void VisitBuildLocalActivationContext();
   void VisitBlockDeclarationsAndStatements(Block* stmt);
   void VisitNewLocalBlockContext(Scope* scope);
   void VisitNewLocalCatchContext(Variable* variable);
   void VisitNewLocalWithContext();
   void VisitFunctionClosureForContext();
   void VisitSetHomeObject(Register value, Register home_object,
                           ObjectLiteralProperty* property, int slot_number = 0);
   void VisitObjectLiteralAccessor(Register home_object,
                                   ObjectLiteralProperty* property,
                                   Register value_out);
   void VisitForInAssignment(Expression* expr, FeedbackVectorSlot slot);
 
   // Visit the body of a loop iteration.
   void VisitIterationBody(IterationStatement* stmt, LoopBuilder* loop_builder);
 
   // Visit a statement and switch scopes, the context is in the accumulator.
   void VisitInScope(Statement* stmt, Scope* scope);
 
   // Visitors for obtaining expression result in the accumulator, in a
   // register, or just getting the effect.
-  void VisitForAccumulatorValue(Expression* expression);
-  MUST_USE_RESULT Register VisitForRegisterValue(Expression* expression);
-  void VisitForEffect(Expression* node);
+  void VisitForAccumulatorValue(Expression* expr);
+  void VisitForAccumulatorValueOrTheHole(Expression* expr);
+  MUST_USE_RESULT Register VisitForRegisterValue(Expression* expr);
+  void VisitForEffect(Expression* expr);
 
   // Methods for tracking and remapping register.
   void RecordStoreToRegister(Register reg);
   Register LoadFromAliasedRegister(Register reg);
 
   inline void set_builder(BytecodeArrayBuilder* builder) { builder_ = builder; }
   inline BytecodeArrayBuilder* builder() const { return builder_; }
 
   inline Isolate* isolate() const { return isolate_; }
   inline Zone* zone() const { return zone_; }
@@ skipping 38 matching lines @@
   ContextScope* execution_context_;
   ExpressionResultScope* execution_result_;
   RegisterAllocationScope* register_allocator_;
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_GENERATOR_H_