Nuke CompareToNull AST node.

src/prettyprinter.cc

 // Copyright 2011 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 354 matching lines @@
 
 void PrettyPrinter::VisitCompareOperation(CompareOperation* node) {
   Print("(");
   Visit(node->left());
   Print(" %s ", Token::String(node->op()));
   Visit(node->right());
   Print(")");
 }
 
 
-void PrettyPrinter::VisitCompareToNull(CompareToNull* node) {
-  Print("(");
-  Visit(node->expression());
-  Print("%s null)", Token::String(node->op()));
-}
-
-
 void PrettyPrinter::VisitThisFunction(ThisFunction* node) {
   Print("<this-function>");
 }
 
 
 const char* PrettyPrinter::Print(AstNode* node) {
   Init();
   Visit(node);
   return output_;
 }
@@ skipping 621 matching lines @@
 }
 
 
 void AstPrinter::VisitCompareOperation(CompareOperation* node) {
   IndentedScope indent(this, Token::Name(node->op()), node);
   Visit(node->left());
   Visit(node->right());
 }
 
 
-void AstPrinter::VisitCompareToNull(CompareToNull* node) {
-  const char* name = node->is_strict()
-      ? "COMPARE-TO-NULL-STRICT"
-      : "COMPARE-TO-NULL";
-  IndentedScope indent(this, name, node);
-  Visit(node->expression());
-}
-
-
 void AstPrinter::VisitThisFunction(ThisFunction* node) {
   IndentedScope indent(this, "THIS-FUNCTION");
 }
 
 
 TagScope::TagScope(JsonAstBuilder* builder, const char* name)
     : builder_(builder), next_(builder->tag()), has_body_(false) {
   if (next_ != NULL) {
     next_->use();
     builder->Print(",\n");
@@ skipping 355 matching lines @@
   TagScope tag(this, "CompareOperation");
   {
     AttributesScope attributes(this);
     AddAttribute("op", Token::Name(expr->op()));
   }
   Visit(expr->left());
   Visit(expr->right());
 }
 
 
-void JsonAstBuilder::VisitCompareToNull(CompareToNull* expr) {
-  TagScope tag(this, "CompareToNull");
-  {
-    AttributesScope attributes(this);
-    AddAttribute("is_strict", expr->is_strict());
-  }
-  Visit(expr->expression());
-}
-
-
 void JsonAstBuilder::VisitThisFunction(ThisFunction* expr) {
   TagScope tag(this, "ThisFunction");
 }
 
 
 void JsonAstBuilder::VisitDeclaration(Declaration* decl) {
   TagScope tag(this, "Declaration");
   {
     AttributesScope attributes(this);
     AddAttribute("mode", Variable::Mode2String(decl->mode()));
   }
   Visit(decl->proxy());
   if (decl->fun() != NULL) Visit(decl->fun());
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal