Initial implementation of an edge-labeled instruction flow graph.

src/prettyprinter.cc

 // Copyright 2006-2008 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 586 matching lines @@
   explicit IndentedScope(const char* txt, AstNode* node = NULL) {
     ast_printer_->PrintIndented(txt);
     if (node != NULL && node->AsExpression() != NULL) {
       Expression* expr = node->AsExpression();
       bool printed_first = false;
       if ((expr->type() != NULL) && (expr->type()->IsKnown())) {
         ast_printer_->Print(" (type = ");
         ast_printer_->Print(StaticType::Type2String(expr->type()));
         printed_first = true;
       }
-      if (expr->num() != Expression::kNoLabel) {
+      if (expr->num() != AstNode::kNoNumber) {
         ast_printer_->Print(printed_first ? ", num = " : " (num = ");
         ast_printer_->Print("%d", expr->num());
         printed_first = true;
       }
       if (printed_first) ast_printer_->Print(")");
     }
     ast_printer_->Print("\n");
     ast_printer_->inc_indent();
   }
 
@@ skipping 54 matching lines @@
   if (var == NULL) {
     PrintLiteralIndented(info, value, true);
   } else {
     EmbeddedVector<char, 256> buf;
     int pos = OS::SNPrintF(buf, "%s (mode = %s", info,
                            Variable::Mode2String(var->mode()));
     if (type->IsKnown()) {
       pos += OS::SNPrintF(buf + pos, ", type = %s",
                           StaticType::Type2String(type));
     }
-    if (num != Expression::kNoLabel) {
+    if (num != AstNode::kNoNumber) {
       pos += OS::SNPrintF(buf + pos, ", num = %d", num);
     }
     OS::SNPrintF(buf + pos, ")");
     PrintLiteralIndented(buf.start(), value, true);
   }
 }
 
 
 void AstPrinter::PrintLabelsIndented(const char* info, ZoneStringList* labels) {
   if (labels != NULL && labels->length() > 0) {
@@ skipping 40 matching lines @@
 }
 
 
 void AstPrinter::PrintParameters(Scope* scope) {
   if (scope->num_parameters() > 0) {
     IndentedScope indent("PARAMS");
     for (int i = 0; i < scope->num_parameters(); i++) {
       PrintLiteralWithModeIndented("VAR", scope->parameter(i),
                                    scope->parameter(i)->name(),
                                    scope->parameter(i)->type(),
-                                   Expression::kNoLabel);
+                                   AstNode::kNoNumber);
     }
   }
 }
 
 
 void AstPrinter::PrintStatements(ZoneList<Statement*>* statements) {
   for (int i = 0; i < statements->length(); i++) {
     Visit(statements->at(i));
   }
 }
@@ skipping 25 matching lines @@
 }
 
 
 void AstPrinter::VisitDeclaration(Declaration* node) {
   if (node->fun() == NULL) {
     // var or const declarations
     PrintLiteralWithModeIndented(Variable::Mode2String(node->mode()),
                                  node->proxy()->AsVariable(),
                                  node->proxy()->name(),
                                  node->proxy()->AsVariable()->type(),
-                                 Expression::kNoLabel);
+                                 AstNode::kNoNumber);
   } else {
     // function declarations
     PrintIndented("FUNCTION ");
     PrintLiteral(node->proxy()->name(), true);
     Print(" = function ");
     PrintLiteral(node->fun()->name(), false);
     Print("\n");
   }
 }
 
@@ skipping 717 matching lines @@
     AddAttribute("mode", Variable::Mode2String(decl->mode()));
   }
   Visit(decl->proxy());
   if (decl->fun() != NULL) Visit(decl->fun());
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal