Allow functions to have custom construct stubs that are called...

src/heap.cc

 // Copyright 2009 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 1492 matching lines @@
 
 
 Object* Heap::AllocateSharedFunctionInfo(Object* name) {
   Object* result = Allocate(shared_function_info_map(), NEW_SPACE);
   if (result->IsFailure()) return result;
 
   SharedFunctionInfo* share = SharedFunctionInfo::cast(result);
   share->set_name(name);
   Code* illegal = Builtins::builtin(Builtins::Illegal);
   share->set_code(illegal);
+  Code* construct_stub = Builtins::builtin(Builtins::JSConstructStubGeneric);
+  share->set_construct_stub(construct_stub);
   share->set_expected_nof_properties(0);
   share->set_length(0);
   share->set_formal_parameter_count(0);
   share->set_instance_class_name(Object_symbol());
   share->set_function_data(undefined_value());
   share->set_script(undefined_value());
   share->set_start_position_and_type(0);
   share->set_debug_info(undefined_value());
   share->set_inferred_name(empty_string());
   return result;
@@ skipping 2031 matching lines @@
 #ifdef DEBUG
 bool Heap::GarbageCollectionGreedyCheck() {
   ASSERT(FLAG_gc_greedy);
   if (Bootstrapper::IsActive()) return true;
   if (disallow_allocation_failure()) return true;
   return CollectGarbage(0, NEW_SPACE);
 }
 #endif
 
 } }  // namespace v8::internal