Assert in debug mode that we do not try to compile a function literal...

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 219 matching lines @@
   fun->shared()->set_is_toplevel(is_toplevel);
 }
 
 
 static Handle<Code> ComputeLazyCompile(int argc) {
   CALL_HEAP_FUNCTION(StubCache::ComputeLazyCompile(argc), Code);
 }
 
 
 Handle<JSFunction> CodeGenerator::BuildBoilerplate(FunctionLiteral* node) {
+#ifdef DEBUG
+  // We should not try to compile the same function literal more than
+  // once.
+  ASSERT(!node->already_compiled());
+  node->mark_as_compiled();
+#endif
+
   // Determine if the function can be lazily compiled. This is
   // necessary to allow some of our builtin JS files to be lazily
   // compiled. These builtins cannot be handled lazily by the parser,
   // since we have to know if a function uses the special natives
   // syntax, which is something the parser records.
   bool allow_lazy = node->AllowsLazyCompilation();
 
   // Generate code
   Handle<Code> code;
   if (FLAG_lazy && allow_lazy) {
@@ skipping 321 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