[bindings] partial interfaces should not violate componentization

Source/bindings/scripts/aggregate_generated_bindings.py

 #!/usr/bin/python
 #
 # Copyright (C) 2009 Google Inc. 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.
@@ skipping 35 matching lines @@
 OUTPUT_FILE1 etc. are filenames of output files.
 
 Design doc: http://www.chromium.org/developers/design-documents/idl-build
 """
 
 import errno
 import os
 import re
 import sys
 
-from utilities import idl_filename_to_interface_name, read_idl_files_list_from_file
+from utilities import idl_filename_to_component, idl_filename_to_interface_name, read_idl_files_list_from_file
 
 # A regexp for finding Conditional attributes in interface definitions.
 CONDITIONAL_PATTERN = re.compile(
     r'\['
     r'[^\]]*'
     r'Conditional=([\_0-9a-zA-Z]*)'
     r'[^\]]*'
     r'\]\s*'
     r'((callback|partial)\s+)?'
     r'interface\s+'
@@ skipping 61 matching lines @@
 
         meta_data = {
             'conditional': extract_conditional(file_path),
             'name': interface_name,
         }
         meta_data_list.append(meta_data)
 
     return meta_data_list
 
 
-def generate_content(component_dir, files_meta_data_this_partition):
+def generate_content(component_dir, aggregate_partial_interfaces, files_meta_data_this_partition):
     # Add fixed content.
     output = [COPYRIGHT_TEMPLATE,
               '#define NO_IMPLICIT_ATOMICSTRING\n\n']
 
     # List all includes segmented by if and endif.
     prev_conditional = None
     files_meta_data_this_partition.sort(key=lambda e: e['conditional'])
     for meta_data in files_meta_data_this_partition:
         conditional = meta_data['conditional']
         if prev_conditional != conditional:
             if prev_conditional:
                 output.append('#endif\n')
             if conditional:
                 output.append('\n#if ENABLE(%s)\n' % conditional)
         prev_conditional = conditional
 
-        output.append('#include "bindings/%s/v8/V8%s.cpp"\n' %
-                      (component_dir, meta_data['name']))
+        if aggregate_partial_interfaces:
+            cpp_filename = 'V8%sPartial.cpp' % meta_data['name']
+        else:
+            cpp_filename = 'V8%s.cpp' % meta_data['name']
+
+        output.append('#include "bindings/%s/v8/%s"\n' %
+                      (component_dir, cpp_filename))
 
     if prev_conditional:
         output.append('#endif\n')
 
     return ''.join(output)
 
 
 def write_content(content, output_file_name):
     parent_path, file_name = os.path.split(output_file_name)
     if not os.path.exists(parent_path):
         print 'Creating directory: %s' % parent_path
         os.makedirs(parent_path)
     with open(output_file_name, 'w') as f:
         f.write(content)
 
 
 def main(args):
     if len(args) <= 4:
         raise Exception('Expected at least 5 arguments.')
     component_dir = args[1]
     input_file_name = args[2]
     in_out_break_index = args.index('--')
     output_file_names = args[in_out_break_index + 1:]
 
     idl_file_names = read_idl_files_list_from_file(input_file_name)
+    components = set([idl_filename_to_component(filename)
+                      for filename in idl_file_names])
+    if len(components) != 1:
+        raise Exception('Cannot aggregate generated codes in different components')
+    aggregate_partial_interfaces = component_dir not in components
+
     files_meta_data = extract_meta_data(idl_file_names)
     total_partitions = len(output_file_names)
     for partition, file_name in enumerate(output_file_names):
         files_meta_data_this_partition = [
                 meta_data for meta_data in files_meta_data
                 if hash(meta_data['name']) % total_partitions == partition]
         file_contents = generate_content(component_dir,
+                                         aggregate_partial_interfaces,
                                          files_meta_data_this_partition)
         write_content(file_contents, file_name)
 
 
 if __name__ == '__main__':
     sys.exit(main(sys.argv))