def union_arguments(idl_type):
"""Return list of ['result0Enabled', 'result0', 'result1Enabled', ...] for union types, for use in setting return value"""
if not v8_types.is_union_type(idl_type):
return None
return [arg
for i in range(len(idl_type.union_member_types))
for arg in ['result%sEnabled' % i, 'result%s' % i]]
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 idl_type == 'void':
return None
is_union_type = v8_types.is_union_type(idl_type)
release = False
# [CallWith=ScriptState], [RaisesException]
if (has_extended_attribute_value(method, 'CallWith', 'ScriptState')
or 'RaisesException' in extended_attributes or is_union_type):
# use local variable for value
cpp_value = 'result'
if is_union_type:
release = [
v8_types.is_interface_type(union_member_type)
for union_member_type in idl_type.union_member_types
]
else:
release = v8_types.is_interface_type(idl_type)
script_wrappable = 'imp' if v8_types.inherits_interface(
interface_name, 'Node') else ''
return v8_types.v8_set_return_value(idl_type,
cpp_value,
extended_attributes,
script_wrappable=script_wrappable,
release=release,
for_main_world=for_main_world)
def union_arguments(idl_type):
"""Return list of ['result0Enabled', 'result0', 'result1Enabled', ...] for union types, for use in setting return value"""
if not v8_types.is_union_type(idl_type):
return None
return [
arg for i in range(len(idl_type.union_member_types))
for arg in ['result%sEnabled' %
i, 'result%s' % i]
]
def is_null_expression(idl_type):
if v8_types.is_union_type(idl_type):
return ' && '.join('!result%sEnabled' % i
for i, _ in
enumerate(idl_type.union_member_types))
if idl_type == 'DOMString':
return 'result.isNull()'
if is_interface_type(idl_type):
return '!result'
return ''
def property_getter(getter, cpp_arguments):
def is_null_expression(idl_type):
if v8_types.is_union_type(idl_type):
return ' && '.join('!result%sEnabled' % i
for i, _ in
enumerate(idl_type.union_member_types))
if idl_type == 'DOMString':
return 'result.isNull()'
if is_interface_type(idl_type):
return '!result'
return ''
idl_type = getter.idl_type
extended_attributes = getter.extended_attributes
is_raises_exception = 'RaisesException' in extended_attributes
if v8_types.is_union_type(idl_type):
release = [v8_types.is_interface_type(union_member_type)
for union_member_type in idl_type.union_member_types]
else:
release = v8_types.is_interface_type(idl_type)
# FIXME: make more generic, so can use v8_methods.cpp_value
cpp_method_name = 'imp->%s' % cpp_name(getter)
if is_raises_exception:
cpp_arguments.append('exceptionState')
this_union_arguments = v8_methods.union_arguments(idl_type)
if this_union_arguments:
cpp_arguments.extend(this_union_arguments)
cpp_value = '%s(%s)' % (cpp_method_name, ', '.join(cpp_arguments))
return {
'cpp_type': v8_types.cpp_type(idl_type),
'cpp_value': cpp_value,
'is_custom':
'Custom' in extended_attributes and
(not extended_attributes['Custom'] or
has_extended_attribute_value(getter, 'Custom', 'PropertyGetter')),
'is_custom_property_enumerator': has_extended_attribute_value(
getter, 'Custom', 'PropertyEnumerator'),
'is_custom_property_query': has_extended_attribute_value(
getter, 'Custom', 'PropertyQuery'),
'is_enumerable': 'NotEnumerable' not in extended_attributes,
'is_null_expression': is_null_expression(idl_type),
'is_raises_exception': is_raises_exception,
'name': cpp_name(getter),
'union_arguments': v8_methods.union_arguments(idl_type),
'v8_set_return_value': v8_types.v8_set_return_value(idl_type, 'result', extended_attributes=extended_attributes, script_wrappable='imp', release=release),
}
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 idl_type == 'void':
return None
is_union_type = v8_types.is_union_type(idl_type)
release = False
# [CallWith=ScriptState], [RaisesException]
if (has_extended_attribute_value(method, 'CallWith', 'ScriptState') or
'RaisesException' in extended_attributes or
is_union_type):
# use local variable for value
cpp_value = 'result'
if is_union_type:
release = [v8_types.is_interface_type(union_member_type)
for union_member_type in idl_type.union_member_types]
else:
release = v8_types.is_interface_type(idl_type)
script_wrappable = 'imp' if v8_types.inherits_interface(interface_name, 'Node') else ''
return v8_types.v8_set_return_value(idl_type, cpp_value, extended_attributes, script_wrappable=script_wrappable, release=release, for_main_world=for_main_world)
