Add support for [NoInterfaceObject] extended attribute to bindings generator

Source/bindings/derived_sources.gyp

 #
 # Copyright (C) 2013 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.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 67 matching lines @@
         ],
       }],
     ],
   },
 
   'target_defaults': {
     'variables': {
       'optimize': 'max',
     },
   },
-
+  # Touch DOMWindow.idl if any IDL file has changed so that DOMWindow attributes
+  # are properly generated to each interface that does not have NoInterfaceObject
+  # extended attribute set.

[Nico, 2013/04/22 17:10:36]

This looks like it's emulating a build system in gyp. Can't you just make all
idl files inputs of the edge the generates DOMWindow.idl?

   'targets': [{
+    'target_name': 'touch_domwindow',
+    'type': 'none',
+    'actions': [{
+      'action_name': 'touchDOMWindow',
+       'variables': {
+        # Write sources into a file, so that the action command line won't
+        # exceed OS limits.
+        'idl_files_list': '<|(idl_files_list.tmp <@(idl_files))',
+      },
+      'inputs': [
+        '<(idl_files_list)',
+        '<!@(cat <(idl_files_list))',
+       ],
+       'inputs/': [['exclude', 'DOMWindow\\.idl$']],
+       'outputs': [
+         '../core/page/DOMWindow.idl',
+       ],
+       'action': [
+         'touch',
+         '../core/page/DOMWindow.idl',
+       ],
+       'message': 'Touching DOMWindow.idl',
+      }]
+   },
+   {
     'target_name': 'supplemental_dependencies',
     'type': 'none',
     'actions': [{
       'action_name': 'generateSupplementalDependency',
       'variables': {
         # Write sources into a file, so that the action command line won't
         # exceed OS limits.
         'idl_files_list': '<|(idl_files_list.tmp <@(idl_files))',
       },
       'inputs': [
@@ skipping 19 matching lines @@
          '<(SHARED_INTERMEDIATE_DIR)/supplemental_dependency.tmp',
        ],
        'message': 'Resolving [Supplemental=XXX] dependencies in all IDL files',
       }]
     },
     {
       'target_name': 'bindings_derived_sources',
       'type': 'none',
       'hard_dependency': 1,
       'dependencies': [
+        'touch_domwindow',
         'supplemental_dependencies',
         '../core/core.gyp/core_derived_sources.gyp:generate_settings',
       ],
       'sources': [
         '<@(idl_files)',
         '<@(webcore_test_support_idl_files)',
       ],
       'actions': [{
         'action_name': 'derived_sources_all_in_one',
         'inputs': [
@@ skipping 80 matching lines @@
           '--additionalIdlFiles',
           '<(webcore_test_support_idl_files)',
           '<(RULE_INPUT_PATH)',
           '<@(preprocessor)',
         ],
         'message': 'Generating binding from <(RULE_INPUT_PATH)',
       }],
     },
   ],
 }