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

bindings/dart/scripts/dart_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 v8_globals import includes
-import dart_types
-from dart_utilities import DartUtilities
-
-
-DICTIONARY_H_INCLUDES = frozenset([
-    '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',
-])
-
-
-def setter_name_for_dictionary_member(member):
-    return 'set%s' % DartUtilities.capitalize(member.name)
-
-
-def has_method_name_for_dictionary_member(member):
-    return 'has%s' % DartUtilities.capitalize(member.name)
-
-
-def unwrap_nullable_if_needed(idl_type):
-    if idl_type.is_nullable:
-        return idl_type.inner_type
-    return idl_type
-
-
-# Context for Dart bindings
-
-def dictionary_context(dictionary):
-    includes.clear()
-    includes.update(DICTIONARY_CPP_INCLUDES)
-    return {
-        'cpp_class': DartUtilities.cpp_name(dictionary),
-        'header_includes': set(DICTIONARY_H_INCLUDES),
-        'members': [member_context(member)
-                    for member in sorted(dictionary.members,
-                                         key=operator.attrgetter('name'))],
-        'dart_class': dart_types.dart_type(dictionary.name),
-
-    }
-
-
-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
-        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_value=cpp_default_value, isolate='isolate',
-            creation_context='creationContext')
-        return cpp_default_value, v8_default_value
-
-    cpp_default_value, dart_default_value = default_values()
-
-    dart_enum_expression = idl_type.enum_validation_expression
-    if dart_enum_expression:
-        dart_enum_expression = dart_enum_expression.format(param_name='string')
-
-    return {
-        'cpp_default_value': cpp_default_value,
-        'cpp_type': idl_type.cpp_type,
-        'cpp_value_to_dart_value': idl_type.cpp_value_to_dart_value(
-            cpp_value='impl->%s()' % member.name,
-            creation_context='creationContext',
-            extended_attributes=member.extended_attributes),
-        'enum_validation_expression': dart_enum_expression,
-        'has_method_name': has_method_name_for_dictionary_member(member),
-        'is_object': idl_type.name == 'Object',
-        'name': member.name,
-        'setter_name': setter_name_for_dictionary_member(member),
-        'dart_default_value': dart_default_value,
-    }
-
-
-# Context for implementation classes
-
-def dictionary_impl_context(dictionary, interfaces_info):
-    includes.clear()
-    header_includes = set(['platform/heap/Handle.h'])
-    return {
-        'header_includes': header_includes,
-        'cpp_class': DartUtilities.cpp_name(dictionary),
-        'members': [member_impl_context(member, interfaces_info,
-                                        header_includes)
-                    for member in dictionary.members],
-    }
-
-
-def member_impl_context(member, interfaces_info, header_includes):
-    idl_type = unwrap_nullable_if_needed(member.idl_type)
-    is_object = idl_type.name == 'Object'
-
-    def getter_expression():
-        if idl_type.impl_should_use_nullable_container:
-            return 'm_%s.get()' % member.name
-        return 'm_%s' % member.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)
-        else:
-            return 'm_%s' % member.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 dart_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)
-
-    header_includes.update(idl_type.impl_includes_for_type(interfaces_info))
-    return {
-        'cpp_default_value': cpp_default_value,
-        '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),
-        'member_cpp_type': member_cpp_type(),
-        'name': member.name,
-        'rvalue_cpp_type': idl_type.cpp_type_args(used_as_rvalue_type=True),
-        'setter_name': setter_name_for_dictionary_member(member),
-    }