Updated to Chrome 45 (2454) moved from SVN to git.

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
+from v8_utilities import has_extended_attribute_value
 
 
 DICTIONARY_H_INCLUDES = frozenset([
+    'bindings/core/v8/ToV8.h',
     'bindings/core/v8/V8Binding.h',
     'platform/heap/Handle.h',
 ])
 
 DICTIONARY_CPP_INCLUDES = frozenset([
-    'bindings/common/ExceptionState.h',
-    # FIXME: Remove this, http://crbug.com/321462
-    'bindings/core/v8/Dictionary.h',
+    'bindings/core/v8/ExceptionState.h',
 ])
 
 
 def setter_name_for_dictionary_member(member):
-    return 'set%s' % v8_utilities.capitalize(member.name)
+    name = v8_utilities.cpp_name(member)
+    return 'set%s' % v8_utilities.capitalize(name)
+
+
+def null_setter_name_for_dictionary_member(member):
+    if member.idl_type.is_nullable:
+        name = v8_utilities.cpp_name(member)
+        return 'set%sToNull' % v8_utilities.capitalize(name)
+    return None
 
 
 def has_method_name_for_dictionary_member(member):
-    return 'has%s' % v8_utilities.capitalize(member.name)
+    name = v8_utilities.cpp_name(member)
+    return 'has%s' % v8_utilities.capitalize(name)
 
 
 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)
+        'members': [member_context(dictionary, member)
                     for member in sorted(dictionary.members,
                                          key=operator.attrgetter('name'))],
-        'v8_class': v8_utilities.v8_class_name(dictionary),
+        'use_permissive_dictionary_conversion': 'PermissiveDictionaryConversion' in dictionary.extended_attributes,
+        'v8_class': v8_types.v8_type(cpp_class),
+        'v8_original_class': v8_types.v8_type(dictionary.name),
     }
+    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_types.v8_type(parent_cpp_class),
+        })
+    return context
 
 
-def member_context(member):
+def member_context(dictionary, member):
+    extended_attributes = member.extended_attributes
     idl_type = member.idl_type
-    idl_type.add_includes_for_type()
-    idl_type = unwrap_nullable_if_needed(idl_type)
+    idl_type.add_includes_for_type(extended_attributes)
+    unwrapped_idl_type = unwrap_nullable_if_needed(idl_type)
+
+    if member.is_required and member.default_value:
+        raise Exception(
+            'Required member %s must not have a default value.' % member.name)
 
     def default_values():
         if not member.default_value:
             return None, None
         if member.default_value.is_null:
             return None, 'v8::Null(isolate)'
-        cpp_default_value = str(member.default_value)
-        v8_default_value = idl_type.cpp_value_to_v8_value(
+        cpp_default_value = unwrapped_idl_type.literal_cpp_value(
+            member.default_value)
+        v8_default_value = unwrapped_idl_type.cpp_value_to_v8_value(
             cpp_value=cpp_default_value, isolate='isolate',
             creation_context='creationContext')
         return cpp_default_value, v8_default_value
 
     cpp_default_value, v8_default_value = default_values()
+    cpp_name = v8_utilities.cpp_name(member)
 
     return {
         'cpp_default_value': cpp_default_value,
-        'cpp_type': idl_type.cpp_type,
-        'cpp_value_to_v8_value': idl_type.cpp_value_to_v8_value(
-            cpp_value='impl->%s()' % member.name, isolate='isolate',
+        'cpp_name': cpp_name,
+        'cpp_type': unwrapped_idl_type.cpp_type,
+        'cpp_value_to_v8_value': unwrapped_idl_type.cpp_value_to_v8_value(
+            cpp_value='impl.%s()' % cpp_name, isolate='isolate',
             creation_context='creationContext',
-            extended_attributes=member.extended_attributes),
-        'enum_validation_expression': idl_type.enum_validation_expression,
+            extended_attributes=extended_attributes),
+        'deprecate_as': v8_utilities.deprecate_as(member),
+        'enum_type': idl_type.enum_type,
+        'enum_values': unwrapped_idl_type.enum_values,
         'has_method_name': has_method_name_for_dictionary_member(member),
-        'is_object': idl_type.name == 'Object',
+        'idl_type': idl_type.base_type,
+        'is_interface_type': idl_type.is_interface_type and not idl_type.is_dictionary,
+        'is_nullable': idl_type.is_nullable,
+        'is_object': unwrapped_idl_type.name == 'Object',
+        'is_required': member.is_required,
         'name': member.name,
         'setter_name': setter_name_for_dictionary_member(member),
+        'null_setter_name': null_setter_name_for_dictionary_member(member),
         'v8_default_value': v8_default_value,
+        'v8_value_to_local_cpp_value': unwrapped_idl_type.v8_value_to_local_cpp_value(
+            extended_attributes, member.name + 'Value',
+            member.name, isolate='isolate', use_exception_state=True),
     }
 
 
 # Context for implementation classes
 
 def dictionary_impl_context(dictionary, interfaces_info):
+    def remove_duplicate_members(members):
+        # When [ImplementedAs] is used, cpp_name can conflict. For example,
+        # dictionary D { long foo; [ImplementedAs=foo, DeprecateAs=Foo] long oldFoo; };
+        # This function removes such duplications, checking they have the same type.
+        members_dict = {}
+        for member in members:
+            cpp_name = member['cpp_name']
+            duplicated_member = members_dict.get(cpp_name)
+            if duplicated_member and duplicated_member != member:
+                raise Exception('Member name conflict: %s' % cpp_name)
+            members_dict[cpp_name] = member
+        return sorted(members_dict.values(), key=lambda member: member['cpp_name'])
+
     includes.clear()
     header_includes = set(['platform/heap/Handle.h'])
-    return {
+    members = [member_impl_context(member, interfaces_info, header_includes)
+               for member in dictionary.members]
+    members = remove_duplicate_members(members)
+    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],
+        'members': 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()' % member.name
-        return 'm_%s' % member.name
+            return 'm_%s.get()' % cpp_name
+        return 'm_%s' % cpp_name
 
     def has_method_expression():
-        if idl_type.impl_should_use_nullable_container or idl_type.is_enum or idl_type.is_string_type:
-            return '!m_%s.isNull()' % member.name
-        elif is_object:
-            return '!(m_{0}.isEmpty() || m_{0}.isNull() || m_{0}.isUndefined())'.format(member.name)
+        if idl_type.impl_should_use_nullable_container or idl_type.is_enum or idl_type.is_string_type or idl_type.is_union_type:
+            return '!m_%s.isNull()' % cpp_name
+        elif idl_type.name in ['Any', 'Object']:
+            return '!(m_{0}.isEmpty() || m_{0}.isNull() || m_{0}.isUndefined())'.format(cpp_name)
         else:
-            return 'm_%s' % member.name
+            return 'm_%s' % cpp_name
 
     def member_cpp_type():
         member_cpp_type = idl_type.cpp_type_args(used_in_cpp_sequence=True)
         if idl_type.impl_should_use_nullable_container:
             return v8_types.cpp_template_type('Nullable', member_cpp_type)
         return member_cpp_type
 
     cpp_default_value = None
     if member.default_value and not member.default_value.is_null:
-        cpp_default_value = str(member.default_value)
+        cpp_default_value = idl_type.literal_cpp_value(member.default_value)
 
     header_includes.update(idl_type.impl_includes_for_type(interfaces_info))
     return {
         'cpp_default_value': cpp_default_value,
+        '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_garbage_collected or
-                         idl_type.is_will_be_garbage_collected),
+        'is_nullable': idl_type.is_nullable,
+        'is_traceable': idl_type.is_traceable,
         'member_cpp_type': member_cpp_type(),
-        'name': member.name,
+        'null_setter_name': null_setter_name_for_dictionary_member(member),
         'rvalue_cpp_type': idl_type.cpp_type_args(used_as_rvalue_type=True),
         'setter_name': setter_name_for_dictionary_member(member),
     }