IDL: Basic dictionary inheritance support

Source/bindings/scripts/v8_dictionary.py

 # Copyright 2014 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.
 
 """Generate template contexts of dictionaries for both v8 bindings and
 implementation classes that are used by blink's core/modules.
 """
 
 import operator
+from idl_types import IdlType
 from v8_globals import includes
 import v8_types
 import v8_utilities
 
 
 DICTIONARY_H_INCLUDES = frozenset([
     'bindings/core/v8/V8Binding.h',
     'platform/heap/Handle.h',
 ])
 
@@ skipping 15 matching lines @@
 
 
 def unwrap_nullable_if_needed(idl_type):
     if idl_type.is_nullable:
         return idl_type.inner_type
     return idl_type
 
 
 # Context for V8 bindings
 
-def dictionary_context(dictionary):
+def dictionary_context(dictionary, interfaces_info):
     includes.clear()
     includes.update(DICTIONARY_CPP_INCLUDES)
-    return {
-        'cpp_class': v8_utilities.cpp_name(dictionary),
+    cpp_class = v8_utilities.cpp_name(dictionary)
+    context = {
+        'cpp_class': cpp_class,
         'header_includes': set(DICTIONARY_H_INCLUDES),
         'members': [member_context(member)
                     for member in sorted(dictionary.members,
                                          key=operator.attrgetter('name'))],
-        'v8_class': v8_utilities.v8_class_name(dictionary),
+        'v8_class': 'V8' + cpp_class,

[haraken, 2014/11/19 09:11:26]

v8_types.v8_type(cpp_class) ?

[bashi, 2014/11/19 11:04:42]

Done.

     }
+    if dictionary.parent:
+        IdlType(dictionary.parent).add_includes_for_type()
+        parent_cpp_class = v8_utilities.cpp_name_from_interfaces_info(
+            dictionary.parent, interfaces_info)
+        context.update({
+            'parent_cpp_class': parent_cpp_class,
+            'parent_v8_class': 'V8' + parent_cpp_class,

[haraken, 2014/11/19 09:11:26]

v8_types.v8_type(parent_cpp_class) ?

[bashi, 2014/11/19 11:04:42]

Done.

+        })
+    return context
 
 
 def member_context(member):
     idl_type = member.idl_type
     idl_type.add_includes_for_type()
     idl_type = unwrap_nullable_if_needed(idl_type)
 
     def default_values():
         if not member.default_value:
             return None, None
@@ skipping 23 matching lines @@
         'setter_name': setter_name_for_dictionary_member(member),
         'v8_default_value': v8_default_value,
     }
 
 
 # Context for implementation classes
 
 def dictionary_impl_context(dictionary, interfaces_info):
     includes.clear()
     header_includes = set(['platform/heap/Handle.h'])
-    return {
+    context = {
         'header_includes': header_includes,
         'cpp_class': v8_utilities.cpp_name(dictionary),
         'members': [member_impl_context(member, interfaces_info,
                                         header_includes)
                     for member in dictionary.members],
     }
+    if dictionary.parent:
+        context['parent_cpp_class'] = v8_utilities.cpp_name_from_interfaces_info(
+            dictionary.parent, interfaces_info)
+        parent_interface_info = interfaces_info.get(dictionary.parent)
+        if parent_interface_info:
+            context['header_includes'].add(
+                parent_interface_info['include_path'])
+    return context
 
 
 def member_impl_context(member, interfaces_info, header_includes):
     idl_type = unwrap_nullable_if_needed(member.idl_type)
     is_object = idl_type.name == 'Object'
     cpp_name = v8_utilities.cpp_name(member)
 
     def getter_expression():
         if idl_type.impl_should_use_nullable_container:
             return 'm_%s.get()' % cpp_name
@@ skipping 23 matching lines @@
         'cpp_name': cpp_name,
         'getter_expression': getter_expression(),
         'has_method_expression': has_method_expression(),
         'has_method_name': has_method_name_for_dictionary_member(member),
         'is_object': is_object,
         'is_traceable': idl_type.is_traceable,
         'member_cpp_type': member_cpp_type(),
         'rvalue_cpp_type': idl_type.cpp_type_args(used_as_rvalue_type=True),
         'setter_name': setter_name_for_dictionary_member(member),
     }