Regexp logging and stl

src/jsregexp.h

 // 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 449 matching lines @@
         does_determine_newline(false),
         does_determine_start(false),
         follows_word_interest(false),
         follows_newline_interest(false),
         follows_start_interest(false),
         is_word(UNKNOWN),
         is_newline(UNKNOWN),
         at_end(false),
         follows_word(UNKNOWN),
         follows_newline(UNKNOWN),
-        follows_start(UNKNOWN) { }
+        follows_start(UNKNOWN),
+        visited(false) { }
 
   // Returns true if the interests and assumptions of this node
   // matches the given one.
   bool Matches(NodeInfo* that) {
     return (at_end == that->at_end) &&
            (follows_word_interest == that->follows_word_interest) &&
            (follows_newline_interest == that->follows_newline_interest) &&
            (follows_start_interest == that->follows_start_interest) &&
            (follows_word == that->follows_word) &&
            (follows_newline == that->follows_newline) &&
@@ skipping 78 matching lines @@
   TriBool is_word: 2;
   TriBool is_newline: 2;
 
   bool at_end: 1;
 
   // These bits are set if the node can make assumptions about what
   // the previous character was.
   TriBool follows_word: 2;
   TriBool follows_newline: 2;
   TriBool follows_start: 2;
+
+  bool visited: 1;
 };
 
 
 class ExpansionGuard {
  public:
   explicit inline ExpansionGuard(NodeInfo* info) : info_(info) {
     ASSERT(!info->being_expanded);
     info->being_expanded = true;
   }
   inline ~ExpansionGuard() {
@@ skipping 375 matching lines @@
                                     RegExpNode** node_return,
                                     bool ignore_case,
                                     bool multiline);
   static void DotPrint(const char* label, RegExpNode* node, bool ignore_case);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSREGEXP_H_