Refactor class declaration logic to the parser and runtime

src/full-codegen/full-codegen.cc

 // Copyright 2012 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.
 
 #include "src/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 1450 matching lines @@
   Handle<SharedFunctionInfo> function_info =
       Compiler::GetSharedFunctionInfo(expr, script(), info_);
   if (function_info.is_null()) {
     SetStackOverflow();
     return;
   }
   EmitNewClosure(function_info, expr->pretenure());
 }
 
 
-void FullCodeGenerator::VisitClassLiteral(ClassLiteral* lit) {
-  Comment cmnt(masm_, "[ ClassLiteral");
-
-  {
-    NestedClassLiteral nested_class_literal(this, lit);
-    EnterBlockScopeIfNeeded block_scope_state(
-        this, lit->scope(), lit->EntryId(), lit->DeclsId(), lit->ExitId());
-
-    if (lit->extends() != NULL) {
-      VisitForStackValue(lit->extends());
-    } else {
-      PushOperand(isolate()->factory()->the_hole_value());
-    }
-
-    VisitForStackValue(lit->constructor());
-
-    PushOperand(Smi::FromInt(lit->start_position()));
-    PushOperand(Smi::FromInt(lit->end_position()));
-
-    CallRuntimeWithOperands(Runtime::kDefineClass);
-    PrepareForBailoutForId(lit->CreateLiteralId(), BailoutState::TOS_REGISTER);
-    PushOperand(result_register());
-
-    // Load the "prototype" from the constructor.
-    __ Move(LoadDescriptor::ReceiverRegister(), result_register());
-    __ LoadRoot(LoadDescriptor::NameRegister(),
-                Heap::kprototype_stringRootIndex);
-    __ Move(LoadDescriptor::SlotRegister(), SmiFromSlot(lit->PrototypeSlot()));
-    CallLoadIC();
-    PrepareForBailoutForId(lit->PrototypeId(), BailoutState::TOS_REGISTER);
-    PushOperand(result_register());
-
-    EmitClassDefineProperties(lit);
-    DropOperands(1);
-
-    // Set the constructor to have fast properties.
-    CallRuntimeWithOperands(Runtime::kToFastProperties);
-
-    if (lit->class_variable_proxy() != nullptr) {
-      EmitVariableAssignment(lit->class_variable_proxy()->var(), Token::INIT,
-                             lit->ProxySlot());
-    }
-  }
-
-  context()->Plug(result_register());
-}
-
 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
   Comment cmnt(masm_, "[ RegExpLiteral");
   Callable callable = CodeFactory::FastCloneRegExp(isolate());
   CallInterfaceDescriptor descriptor = callable.descriptor();
   LoadFromFrameField(JavaScriptFrameConstants::kFunctionOffset,
                      descriptor.GetRegisterParameter(0));
   __ Move(descriptor.GetRegisterParameter(1),
           Smi::FromInt(expr->literal_index()));
   __ Move(descriptor.GetRegisterParameter(2), expr->pattern());
   __ Move(descriptor.GetRegisterParameter(3), Smi::FromInt(expr->flags()));
@@ skipping 433 matching lines @@
   return var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8