[mojo] Add typemap and variant support to generators

third_party/mojo/mojom_bindings_generator.gypi

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'includes': [
     'mojom_bindings_generator_variables.gypi',
   ],
+  'variables': {
+    'variables': {
+      'mojom_variant%': 'none',
+    },
+    'mojom_variant%': '<(mojom_variant)',
+    'mojom_base_output_dir':
+        '<!(python <(DEPTH)/build/inverse_depth.py <(DEPTH))',
+    'mojom_generated_outputs': [
+      '<!@(python <(DEPTH)/mojo/public/tools/bindings/mojom_list_outputs.py --basedir <(mojom_base_output_dir) --variant <(mojom_variant) <@(_sources))',
+    ],
+    'mojom_extra_generator_args%': [],
+    'conditions': [
+      ['mojom_variant=="none"', {
+        'mojom_output_languages%': 'c++,javascript,java',
+      }, {
+        'mojom_output_languages%': 'c++',
+      }],
+    ],
+  },
   'actions': [
     {
       'variables': {
         'java_out_dir': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/src',
         'stamp_filename': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/<(_target_name).stamp',
       },
       'action_name': '<(_target_name)_mojom_bindings_stamp',
       # The java output directory is deleted to ensure that the java library
       # doesn't try to compile stale files.
       'action': [
         'python', '<(DEPTH)/build/rmdir_and_stamp.py',
         '<(java_out_dir)',
         '<(stamp_filename)',
       ],
       'inputs': [ '<@(_sources)' ],
       'outputs': [ '<(stamp_filename)' ],
     }
   ],
   'rules': [
     {
       'rule_name': '<(_target_name)_mojom_bindings_generator',
       'extension': 'mojom',
       'variables': {
-        'mojom_base_output_dir':
-            '<!(python <(DEPTH)/build/inverse_depth.py <(DEPTH))',
         'java_out_dir': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/src',
         'mojom_import_args%': [
          '-I<(DEPTH)',
         ],
         'stamp_filename': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/<(_target_name).stamp',
       },
       'inputs': [
         '<@(mojom_bindings_generator_sources)',
         '<(stamp_filename)',
       ],
-      'outputs': [
-        '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.cc',
-        '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.h',
-        '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.js',
-        '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom-internal.h',
+      'conditions': [
+        ['mojom_variant=="none"', {
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.cc',
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.h',
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.js',
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom-internal.h',
+          ]
+        }, {
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom-<(mojom_variant).cc',
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom-<(mojom_variant).h',
+            '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom-<(mojom_variant)-internal.h',
+          ],
+        }]
       ],
       'action': [
         'python', '<@(mojom_bindings_generator)',
         './<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom',
         '--use_bundled_pylibs',
         '-d', '<(DEPTH)',
         '<@(mojom_import_args)',
         '-o', '<(SHARED_INTERMEDIATE_DIR)',
         '--java_output_directory=<(java_out_dir)',
+        '--variant', '<(mojom_variant)',
+        '-g', '<(mojom_output_languages)',
+        '<@(mojom_extra_generator_args)',
       ],
       'message': 'Generating Mojo bindings from <(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom',
       'process_outputs_as_sources': 1,
     }
   ],
   'dependencies': [
     '<(DEPTH)/base/base.gyp:base',
     '<(DEPTH)/third_party/mojo/mojo_public.gyp:mojo_interface_bindings_generation',
   ],
   'include_dirs': [
@@ skipping 10 matching lines @@
         '<(PRODUCT_DIR)/java_mojo/<(_target_name)/src',
       ],
       'additional_input_paths': [
         '<@(mojom_bindings_generator_sources)',
         '<@(_sources)',
       ],
     },
   },
   'hard_dependency': 1,
 }