def test_element_children(self):
sequence_one = Sequence.create(elements=[Element.create(), Element.create()])
sequence_two = Sequence.create(
max_occurs=2, elements=[Element.create(), Element.create()]
)
restriction = Restriction.create(
enumerations=[Enumeration.create(value=x) for x in "abc"],
sequence=sequence_two,
)
complex_type = ComplexType.create(
attributes=[Attribute.create(), Attribute.create()],
sequence=sequence_one,
simple_content=SimpleContent.create(restriction=Restriction.create()),
complex_content=ComplexContent.create(restriction=restriction,),
)
children = self.builder.element_children(complex_type)
expected = [
(sequence_two.elements[0], Restrictions.from_element(sequence_two)),
(sequence_two.elements[1], Restrictions.from_element(sequence_two)),
(restriction.enumerations[0], Restrictions.from_element(restriction)),
(restriction.enumerations[1], Restrictions.from_element(restriction)),
(restriction.enumerations[2], Restrictions.from_element(restriction)),
(sequence_one.elements[0], Restrictions.from_element(sequence_one)),
(sequence_one.elements[1], Restrictions.from_element(sequence_one)),
(complex_type.attributes[0], Restrictions.from_element(complex_type)),
(complex_type.attributes[1], Restrictions.from_element(complex_type)),
]
self.assertIsInstance(children, GeneratorType)
self.assertEqual(expected, list(children))
def build_class_attribute(self, target: Class, obj: ElementBase,
parent_restrictions: Restrictions):
"""Generate and append an attribute target to the target class."""
types = self.build_class_attribute_types(target, obj)
restrictions = Restrictions.from_element(obj)
if obj.class_name in (Tag.ELEMENT, Tag.ANY):
restrictions.merge(parent_restrictions)
if restrictions.prohibited:
return
name = obj.real_name
target.ns_map.update(obj.ns_map)
target.attrs.append(
Attr(
index=obj.index,
name=name,
local_name=name,
default=obj.default_value,
fixed=obj.is_fixed,
types=types,
tag=obj.class_name,
help=obj.display_help,
namespace=self.element_namespace(obj),
restrictions=restrictions,
))
def element_children(
self, obj: ElementBase, restrictions: Optional[Restrictions] = None
) -> Iterator[Tuple[AttributeElement, Restrictions]]:
"""Recursively find and return all child elements that are qualified to
be class attributes."""
for child in obj.children():
if child.is_attribute:
yield child, restrictions or Restrictions()
else:
yield from self.element_children(
child, restrictions=Restrictions.from_element(child)
)