Added first shot at a development shell

tools/js2c.py

 #!/usr/bin/env python
 #
 # 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
@@ skipping 182 matching lines @@
 // javascript source files or the SConstruct script.
 
 #include "v8.h"
 #include "natives.h"
 
 namespace v8 {
 namespace internal {
 
 %(source_lines)s\
 
-  int Natives::GetBuiltinsCount() {
+  template <>
+  int NativesCollection<%(type)s>::GetBuiltinsCount() {
     return %(builtin_count)i;
   }
 
-  int Natives::GetDelayCount() {
+  template <>
+  int NativesCollection<%(type)s>::GetDelayCount() {
     return %(delay_count)i;
   }
 
-  int Natives::GetIndex(const char* name) {
+  template <>
+  int NativesCollection<%(type)s>::GetIndex(const char* name) {
 %(get_index_cases)s\
     return -1;
   }
 
-  Vector<const char> Natives::GetScriptSource(int index) {
+  template <>
+  Vector<const char> NativesCollection<%(type)s>::GetScriptSource(int index) {
 %(get_script_source_cases)s\
     return Vector<const char>("", 0);
   }
 
-  Vector<const char> Natives::GetScriptName(int index) {
+  template <>
+  Vector<const char> NativesCollection<%(type)s>::GetScriptName(int index) {
 %(get_script_name_cases)s\
     return Vector<const char>("", 0);
   }
 
 }  // internal
 }  // v8
 """
 
 
 SOURCE_DECLARATION = """\
@@ skipping 84 matching lines @@
     i = i + 1
 
   # Emit result
   output = open(str(target[0]), "w")
   output.write(HEADER_TEMPLATE % {
     'builtin_count': len(ids) + len(delay_ids),
     'delay_count': len(delay_ids),
     'source_lines': "\n".join(source_lines),
     'get_index_cases': "".join(get_index_cases),
     'get_script_source_cases': "".join(get_script_source_cases),
-    'get_script_name_cases': "".join(get_script_name_cases)
+    'get_script_name_cases': "".join(get_script_name_cases),
+    'type': env['TYPE']
   })
   output.close()
-  output = open(str(target[1]), "w")
-  output.write(HEADER_TEMPLATE % {
-    'builtin_count': len(ids) + len(delay_ids),
-    'delay_count': len(delay_ids),
-    'source_lines': "\n".join(source_lines_empty),
-    'get_index_cases': "".join(get_index_cases),
-    'get_script_source_cases': "".join(get_script_source_cases),
-    'get_script_name_cases': "".join(get_script_name_cases)
-  })
-  output.close()
+
+  if len(target) > 1:
+    output = open(str(target[1]), "w")
+    output.write(HEADER_TEMPLATE % {
+      'builtin_count': len(ids) + len(delay_ids),
+      'delay_count': len(delay_ids),
+      'source_lines': "\n".join(source_lines_empty),
+      'get_index_cases': "".join(get_index_cases),
+      'get_script_source_cases': "".join(get_script_source_cases),
+      'get_script_name_cases': "".join(get_script_name_cases),
+      'type': env['TYPE']
+    })
+    output.close()
 
 def main():
   natives = sys.argv[1]
   natives_empty = sys.argv[2]
   source_files = sys.argv[3:]
   JS2C(source_files, [natives, natives_empty], None)
 
 if __name__ == "__main__":
   main()