Experimental: introduce a helper class to delmite a scope where the...

src/codegen.cc

 // Copyright 2007-2008 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 395 matching lines @@
 void CodeGenerator::GenerateFastCaseSwitchCases(
     SwitchStatement* node,
     Vector<JumpTarget> case_labels,
     JumpTarget* table_start) {
   ZoneList<CaseClause*>* cases = node->cases();
   int length = cases->length();
 
   for (int i = 0; i < length; i++) {
     Comment cmnt(masm(), "[ Case clause");
     case_labels[i].Bind();
-    VisitStatements(cases->at(i)->statements());
+    VisitStatementsAndSpill(cases->at(i)->statements());
 
     // All of the labels match the same expected frame as the table start.
     // If control flow cannot fall off the end of the case statement, we
     // pick up the expected frame from the table start.  Otherwise we have
     // to generate merge code to match the next label.
     if (frame_ == NULL) {
       frame_ = new VirtualFrame(table_start->expected_frame());
     } else {
       frame_->MergeTo(table_start->expected_frame());
     }
@@ skipping 64 matching lines @@
 void ArgumentsAccessStub::Generate(MacroAssembler* masm) {
   switch (type_) {
     case READ_LENGTH: GenerateReadLength(masm); break;
     case READ_ELEMENT: GenerateReadElement(masm); break;
     case NEW_OBJECT: GenerateNewObject(masm); break;
   }
 }
 
 
 } }  // namespace v8::internal