Add a new bindings2/scripts directory for Dart bindings

sky/engine/bindings2/scripts/v8_methods.py

 # 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
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 27 matching lines @@
 from idl_types import IdlTypeBase, IdlUnionType, inherits_interface
 from v8_globals import includes
 import v8_types
 import v8_utilities
 from v8_utilities import has_extended_attribute_value
 
 
 # Methods with any of these require custom method registration code in the
 # interface's configure*Template() function.
 CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES = frozenset([
-    'DoNotCheckSecurity',
-    'DoNotCheckSignature',
     'NotEnumerable',
-    'Unforgeable',
 ])
 
 
 def argument_needs_try_catch(method, argument):
     return_promise = method.idl_type and method.idl_type.name == 'Promise'
     idl_type = argument.idl_type
     base_type = idl_type.base_type
 
     return not(
         # These cases are handled by separate code paths in the
         # generate_argument() macro in engine/bindings/templates/methods.cpp.
         idl_type.is_callback_interface or
         base_type == 'SerializedScriptValue' or
         (argument.is_variadic and idl_type.is_wrapper_type) or
         # String and enumeration arguments converted using one of the
         # TOSTRING_* macros except for _PROMISE variants in
         # engine/bindings/core/v8/V8BindingMacros.h don't use a v8::TryCatch.
         ((base_type == 'DOMString' or idl_type.is_enum) and
          not argument.is_variadic and
          not return_promise))
 
 
 def use_local_result(method):
     extended_attributes = method.extended_attributes
     idl_type = method.idl_type
     return (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
-            'ImplementedInPrivateScript' in extended_attributes or
             'RaisesException' in extended_attributes or
             idl_type.is_union_type or
             idl_type.is_explicit_nullable)
 
 
 def method_context(interface, method):
     arguments = method.arguments
     extended_attributes = method.extended_attributes
     idl_type = method.idl_type
     is_static = method.is_static
     name = method.name
 
     idl_type.add_includes_for_type()
     this_cpp_value = cpp_value(interface, method, len(arguments))
 
     def function_template():
         if is_static:
             return 'functionTemplate'
-        if 'Unforgeable' in extended_attributes:
-            return 'instanceTemplate'
         return 'prototypeTemplate'
 
-    is_implemented_in_private_script = 'ImplementedInPrivateScript' in extended_attributes
-    if is_implemented_in_private_script:
-        includes.add('bindings/core/v8/PrivateScriptRunner.h')
-        includes.add('core/frame/LocalFrame.h')
-        includes.add('platform/ScriptForbiddenScope.h')
-
-    # [OnlyExposedToPrivateScript]
-    is_only_exposed_to_private_script = 'OnlyExposedToPrivateScript' in extended_attributes
-
     is_call_with_script_arguments = has_extended_attribute_value(method, 'CallWith', 'ScriptArguments')
     if is_call_with_script_arguments:
         includes.update(['bindings/core/v8/ScriptCallStackFactory.h',
                          'core/inspector/ScriptArguments.h'])
     is_call_with_script_state = has_extended_attribute_value(method, 'CallWith', 'ScriptState')
     if is_call_with_script_state:
         includes.add('bindings/core/v8/ScriptState.h')
-    is_check_security_for_node = 'CheckSecurity' in extended_attributes
-    if is_check_security_for_node:
-        includes.add('bindings/core/v8/BindingSecurity.h')
     is_custom_element_callbacks = 'CustomElementCallbacks' in extended_attributes
     if is_custom_element_callbacks:
         includes.add('core/dom/custom/CustomElementProcessingStack.h')
 
-    is_do_not_check_security = 'DoNotCheckSecurity' in extended_attributes
-
-    is_check_security_for_frame = (
-        has_extended_attribute_value(interface, 'CheckSecurity', 'Frame') and
-        not is_do_not_check_security)
-
-    is_check_security_for_window = (
-        has_extended_attribute_value(interface, 'CheckSecurity', 'Window') and
-        not is_do_not_check_security)
-
     is_raises_exception = 'RaisesException' in extended_attributes
 
     arguments_need_try_catch = (
         any(argument_needs_try_catch(method, argument)
             for argument in arguments))
 
     return {
-        'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
         'arguments': [argument_context(interface, method, argument, index)
                       for index, argument in enumerate(arguments)],
-        'argument_declarations_for_private_script':
-            argument_declarations_for_private_script(interface, method),
         'arguments_need_try_catch': arguments_need_try_catch,
-        'conditional_string': v8_utilities.conditional_string(method),
         'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                      if idl_type.is_explicit_nullable else idl_type.cpp_type),
         'cpp_value': this_cpp_value,
         'cpp_type_initializer': idl_type.cpp_type_initializer,
         'custom_registration_extended_attributes':
             CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
                 extended_attributes.iterkeys()),
-        'deprecate_as': v8_utilities.deprecate_as(method),  # [DeprecateAs]
         'exposed_test': v8_utilities.exposed(method, interface),  # [Exposed]
         'function_template': function_template(),
         'has_custom_registration': is_static or
             v8_utilities.has_extended_attribute(
                 method, CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES),
         'has_exception_state':
             is_raises_exception or
-            is_check_security_for_frame or
-            is_check_security_for_window or
             any(argument for argument in arguments
                 if argument.idl_type.name == 'SerializedScriptValue' or
                    argument.idl_type.may_raise_exception_on_conversion),
         'idl_type': idl_type.base_type,
         'is_call_with_execution_context': has_extended_attribute_value(method, 'CallWith', 'ExecutionContext'),
         'is_call_with_script_arguments': is_call_with_script_arguments,
         'is_call_with_script_state': is_call_with_script_state,
-        'is_check_security_for_frame': is_check_security_for_frame,
-        'is_check_security_for_node': is_check_security_for_node,
-        'is_check_security_for_window': is_check_security_for_window,
         'is_custom': 'Custom' in extended_attributes,
         'is_custom_element_callbacks': is_custom_element_callbacks,
-        'is_do_not_check_security': is_do_not_check_security,
-        'is_do_not_check_signature': 'DoNotCheckSignature' in extended_attributes,
         'is_explicit_nullable': idl_type.is_explicit_nullable,
-        'is_implemented_in_private_script': is_implemented_in_private_script,
         'is_partial_interface_member':
             'PartialInterfaceImplementedAs' in extended_attributes,
-        'is_per_world_bindings': 'PerWorldBindings' in extended_attributes,
         'is_raises_exception': is_raises_exception,
-        'is_read_only': 'Unforgeable' in extended_attributes,
         'is_static': is_static,
         'is_variadic': arguments and arguments[-1].is_variadic,
-        'measure_as': v8_utilities.measure_as(method),  # [MeasureAs]
         'name': name,
         'number_of_arguments': len(arguments),
         'number_of_required_arguments': len([
             argument for argument in arguments
             if not (argument.is_optional or argument.is_variadic)]),
         'number_of_required_or_variadic_arguments': len([
             argument for argument in arguments
             if not argument.is_optional]),
-        'only_exposed_to_private_script': is_only_exposed_to_private_script,
-        'private_script_v8_value_to_local_cpp_value': idl_type.v8_value_to_local_cpp_value(
-            extended_attributes, 'v8Value', 'cppValue', isolate='scriptState->isolate()', used_in_private_script=True),
-        'property_attributes': property_attributes(method),
-        'runtime_enabled_function': v8_utilities.runtime_enabled_function_name(method),  # [RuntimeEnabled]
-        'should_be_exposed_to_script': not (is_implemented_in_private_script and is_only_exposed_to_private_script),
-        'signature': 'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature' in extended_attributes else 'defaultSignature',
         'union_arguments': idl_type.union_arguments,
         'use_local_result': use_local_result(method),
-        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
-        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
-        'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
     }
 
 
 def argument_context(interface, method, argument, index):
     extended_attributes = argument.extended_attributes
     idl_type = argument.idl_type
     this_cpp_value = cpp_value(interface, method, index)
-    is_variadic_wrapper_type = argument.is_variadic and idl_type.is_wrapper_type
     return_promise = (method.idl_type.name == 'Promise' if method.idl_type
                                                         else False)
 
-    if ('ImplementedInPrivateScript' in extended_attributes and
-        not idl_type.is_wrapper_type and
-        not idl_type.is_basic_type):
-        raise Exception('Private scripts supports only primitive types and DOM wrappers.')
-
     default_cpp_value = argument.default_cpp_value
     return {
         'cpp_type': idl_type.cpp_type_args(extended_attributes=extended_attributes,
                                            raw_type=True,
                                            used_as_variadic_argument=argument.is_variadic),
         'cpp_value': this_cpp_value,
         # FIXME: check that the default value's type is compatible with the argument's
         'default_value': default_cpp_value,
         'enum_validation_expression': idl_type.enum_validation_expression,
         'handle': '%sHandle' % argument.name,
         # FIXME: remove once [Default] removed and just use argument.default_value
         'has_default': 'Default' in extended_attributes or default_cpp_value,
         'has_type_checking_interface':
             (has_extended_attribute_value(interface, 'TypeChecking', 'Interface') or
              has_extended_attribute_value(method, 'TypeChecking', 'Interface')) and
             idl_type.is_wrapper_type,
         'has_type_checking_unrestricted':
             (has_extended_attribute_value(interface, 'TypeChecking', 'Unrestricted') or
              has_extended_attribute_value(method, 'TypeChecking', 'Unrestricted')) and
             idl_type.name in ('Float', 'Double'),
-        # Dictionary is special-cased, but arrays and sequences shouldn't be
         'idl_type': idl_type.base_type,
         'idl_type_object': idl_type,
         'index': index,
-        'is_clamp': 'Clamp' in extended_attributes,
         'is_callback_interface': idl_type.is_callback_interface,
         'is_nullable': idl_type.is_nullable,
         'is_optional': argument.is_optional,
-        'is_variadic_wrapper_type': is_variadic_wrapper_type,
         'is_wrapper_type': idl_type.is_wrapper_type,
         'name': argument.name,
-        'private_script_cpp_value_to_v8_value': idl_type.cpp_value_to_v8_value(
-            argument.name, isolate='scriptState->isolate()',
-            creation_context='scriptState->context()->Global()'),
-        'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
-        'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
-        'v8_value_to_local_cpp_value': v8_value_to_local_cpp_value(argument, index, return_promise=return_promise),
-        'vector_type': 'Vector',
     }
 
 
-def argument_declarations_for_private_script(interface, method):
-    argument_declarations = ['LocalFrame* frame']
-    argument_declarations.append('%s* holderImpl' % interface.name)
-    argument_declarations.extend(['%s %s' % (argument.idl_type.cpp_type_args(
-        used_as_rvalue_type=True), argument.name) for argument in method.arguments])
-    if method.idl_type.name != 'void':
-        argument_declarations.append('%s* %s' % (method.idl_type.cpp_type, 'result'))
-    return argument_declarations
-
-
 ################################################################################
 # Value handling
 ################################################################################
 
 def cpp_value(interface, method, number_of_arguments):
     def cpp_argument(argument):
         idl_type = argument.idl_type
         if idl_type.name == 'EventListener':
             return argument.name
         if (idl_type.is_callback_interface or
             idl_type.name in ['NodeFilter', 'NodeFilterOrNull']):
             # FIXME: remove this special case
             return '%s.release()' % argument.name
         return argument.name
 
     # Truncate omitted optional arguments
     arguments = method.arguments[:number_of_arguments]
     cpp_arguments = []
-    if 'ImplementedInPrivateScript' in method.extended_attributes:
-        cpp_arguments.append('toFrameIfNotDetached(info.GetIsolate()->GetCurrentContext())')
-        cpp_arguments.append('impl')
 
     if method.is_constructor:
         call_with_values = interface.extended_attributes.get('ConstructorCallWith')
     else:
         call_with_values = method.extended_attributes.get('CallWith')
     cpp_arguments.extend(v8_utilities.call_with_arguments(call_with_values))
 
     # Members of IDL partial interface definitions are implemented in C++ as
     # static member functions, which for instance members (non-static members)
     # take *impl as their first argument
     if ('PartialInterfaceImplementedAs' in method.extended_attributes and
-        not 'ImplementedInPrivateScript' in method.extended_attributes and
         not method.is_static):
         cpp_arguments.append('*impl')
     cpp_arguments.extend(cpp_argument(argument) for argument in arguments)
 
     this_union_arguments = method.idl_type and method.idl_type.union_arguments
     if this_union_arguments:
         cpp_arguments.extend([member_argument['cpp_value']
                               for member_argument in this_union_arguments])
 
-    if 'ImplementedInPrivateScript' in method.extended_attributes:
-        if method.idl_type.name != 'void':
-            cpp_arguments.append('&result')
-    elif ('RaisesException' in method.extended_attributes or
+    if ('RaisesException' in method.extended_attributes or
         (method.is_constructor and
          has_extended_attribute_value(interface, 'RaisesException', 'Constructor'))):
         cpp_arguments.append('exceptionState')
 
     if method.name == 'Constructor':
         base_name = 'create'
     elif method.name == 'NamedConstructor':
         base_name = 'createForJSConstructor'
-    elif 'ImplementedInPrivateScript' in method.extended_attributes:
-        base_name = '%sMethod' % method.name
     else:
         base_name = v8_utilities.cpp_name(method)
 
     cpp_method_name = v8_utilities.scoped_name(interface, method, base_name)
     return '%s(%s)' % (cpp_method_name, ', '.join(cpp_arguments))
 
 
-def v8_set_return_value(interface_name, method, cpp_value, for_main_world=False):
-    idl_type = method.idl_type
-    extended_attributes = method.extended_attributes
-    if not idl_type or idl_type.name == 'void':
-        # Constructors and void methods don't have a return type
-        return None
-
-    if ('ImplementedInPrivateScript' in extended_attributes and
-        not idl_type.is_wrapper_type and
-        not idl_type.is_basic_type):
-        raise Exception('Private scripts supports only primitive types and DOM wrappers.')
-
-    release = False
-    # [CallWith=ScriptState], [RaisesException]
-    if use_local_result(method):
-        if idl_type.is_explicit_nullable:
-            # result is of type Nullable<T>
-            cpp_value = 'result.get()'
-        else:
-            cpp_value = 'result'
-        release = idl_type.release
-
-    script_wrappable = 'impl' if inherits_interface(interface_name, 'Node') else ''
-    return idl_type.v8_set_return_value(cpp_value, extended_attributes, script_wrappable=script_wrappable, release=release, for_main_world=for_main_world)
-
-
 def v8_value_to_local_cpp_variadic_value(argument, index, return_promise):
     assert argument.is_variadic
     idl_type = argument.idl_type
 
     suffix = ''
 
     macro = 'TONATIVE_VOID'
     macro_args = [
       argument.name,
       'toNativeArguments<%s>(info, %s)' % (idl_type.cpp_type, index),
@@ skipping 15 matching lines @@
     if argument.is_variadic:
         return v8_value_to_local_cpp_variadic_value(argument, index, return_promise)
     return idl_type.v8_value_to_local_cpp_value(extended_attributes, 'info[%s]' % index,
                                                 name, index=index, declare_variable=False, return_promise=return_promise)
 
 
 ################################################################################
 # Auxiliary functions
 ################################################################################
 
-# [NotEnumerable]
-def property_attributes(method):
-    extended_attributes = method.extended_attributes
-    property_attributes_list = []
-    if 'NotEnumerable' in extended_attributes:
-        property_attributes_list.append('v8::DontEnum')
-    if 'Unforgeable' in extended_attributes:
-        property_attributes_list.append('v8::ReadOnly')
-    if property_attributes_list:
-        property_attributes_list.insert(0, 'v8::DontDelete')
-    return property_attributes_list
-
-
 def union_member_argument_context(idl_type, index):
     """Returns a context of union member for argument."""
     this_cpp_value = 'result%d' % index
     this_cpp_type = idl_type.cpp_type
     this_cpp_type_initializer = idl_type.cpp_type_initializer
     cpp_return_value = this_cpp_value
 
     if not idl_type.cpp_type_has_null_value:
         this_cpp_type = v8_types.cpp_template_type('Nullable', this_cpp_type)
         this_cpp_type_initializer = ''
         cpp_return_value = '%s.get()' % this_cpp_value
 
     if idl_type.is_string_type:
         null_check_value = '!%s.isNull()' % this_cpp_value
     else:
         null_check_value = this_cpp_value
 
     return {
         'cpp_type': this_cpp_type,
         'cpp_type_initializer': this_cpp_type_initializer,
         'cpp_value': this_cpp_value,
         'null_check_value': null_check_value,
-        'v8_set_return_value': idl_type.v8_set_return_value(
-            cpp_value=cpp_return_value,
-            release=idl_type.release),
     }
 
 
 def union_arguments(idl_type):
     return [union_member_argument_context(member_idl_type, index)
             for index, member_idl_type
             in enumerate(idl_type.member_types)]
 
 
 def argument_default_cpp_value(argument):
-    if argument.idl_type.is_dictionary:
-        # We always create impl objects for IDL dictionaries.
-        return '%s::create()' % argument.idl_type.base_type
     if not argument.default_value:
         return None
     return argument.idl_type.literal_cpp_value(argument.default_value)
 
 IdlTypeBase.union_arguments = None
 IdlUnionType.union_arguments = property(union_arguments)
 IdlArgument.default_cpp_value = property(argument_default_cpp_value)