Removing exit time destructors by leaking static members.

src/ast.h

 // 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 2105 matching lines @@
 class RegExpEmpty: public RegExpTree {
  public:
   RegExpEmpty() { }
   virtual void* Accept(RegExpVisitor* visitor, void* data);
   virtual RegExpNode* ToNode(RegExpCompiler* compiler,
                              RegExpNode* on_success);
   virtual RegExpEmpty* AsEmpty();
   virtual bool IsEmpty();
   virtual int min_match() { return 0; }
   virtual int max_match() { return 0; }
-  static RegExpEmpty* GetInstance() { return &kInstance; }
- private:
-  static RegExpEmpty kInstance;
+  static RegExpEmpty* GetInstance() {
+    static RegExpEmpty* instance = ::new RegExpEmpty();
+    return instance;
+  }
 };
 
 
 // ----------------------------------------------------------------------------
 // Basic visitor
 // - leaf node visitors are abstract.
 
 class AstVisitor BASE_EMBEDDED {
  public:
   AstVisitor() : isolate_(Isolate::Current()), stack_overflow_(false) { }
@@ skipping 28 matching lines @@
 
  private:
   Isolate* isolate_;
   bool stack_overflow_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_