Split AST Declaration class, in preparation for new module declaration forms.

src/ast.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 401 matching lines @@
 bool CompareOperation::IsLiteralCompareNull(Expression** expr) {
   return MatchLiteralCompareNull(left_, op_, right_, expr) ||
       MatchLiteralCompareNull(right_, op_, left_, expr);
 }
 
 
 // ----------------------------------------------------------------------------
 // Inlining support
 
 bool Declaration::IsInlineable() const {
-  return proxy()->var()->IsStackAllocated() && fun() == NULL;
+  return proxy()->var()->IsStackAllocated();
+}
+
+bool VariableDeclaration::IsInlineable() const {
+  return Declaration::IsInlineable() && fun() == NULL;
 }
 
 
 // ----------------------------------------------------------------------------
 // Recording of type feedback
 
 void Property::RecordTypeFeedback(TypeFeedbackOracle* oracle) {
   // Record type feedback from the oracle in the AST.
   is_monomorphic_ = oracle->LoadIsMonomorphicNormal(this);
   receiver_types_.Clear();
@@ skipping 555 matching lines @@
       compare_id_(AstNode::GetNextId(isolate)),
       entry_id_(AstNode::GetNextId(isolate)) {
 }
 
 
 #define INCREASE_NODE_COUNT(NodeType) \
   void AstConstructionVisitor::Visit##NodeType(NodeType* node) { \
     increase_node_count(); \
   }
 
-INCREASE_NODE_COUNT(Declaration)
+INCREASE_NODE_COUNT(VariableDeclaration)
 INCREASE_NODE_COUNT(Block)
 INCREASE_NODE_COUNT(ExpressionStatement)
 INCREASE_NODE_COUNT(EmptyStatement)
 INCREASE_NODE_COUNT(IfStatement)
 INCREASE_NODE_COUNT(ContinueStatement)
 INCREASE_NODE_COUNT(BreakStatement)
 INCREASE_NODE_COUNT(ReturnStatement)
 INCREASE_NODE_COUNT(Conditional)
 INCREASE_NODE_COUNT(Literal)
 INCREASE_NODE_COUNT(Assignment)
@@ skipping 134 matching lines @@
       (node->name()->IsEqualTo(CStrVector("_ArgumentsLength")) ||
        node->name()->IsEqualTo(CStrVector("_Arguments")))) {
     // Don't inline the %_ArgumentsLength or %_Arguments because their
     // implementation will not work.  There is no stack frame to get them
     // from.
     add_flag(kDontInline);
   }
 }
 
 } }  // namespace v8::internal