def _get_ast(self, schema, context):
value = self.new_value
new_value_empty = \
(value is None or
(isinstance(value, collections.abc.Container) and not value))
old_value_empty = \
(self.old_value is None or
(isinstance(self.old_value, collections.abc.Container) and
not self.old_value))
if new_value_empty and not old_value_empty:
op = qlast.DropAnnotationValue(
name=qlast.ObjectRef(module='', name=self.property))
return op
if new_value_empty and old_value_empty:
return
if isinstance(value, s_expr.Expression):
value = edgeql.parse(value.text)
elif utils.is_nontrivial_container(value):
value = qlast.Tuple(
elements=[qlast.BaseConstant.from_python(el) for el in value])
else:
value = qlast.BaseConstant.from_python(value)
op = qlast.SetField(name=qlast.ObjectRef(module='',
name=self.property),
value=value)
return op
def reduce_DROP_ANNOTATION_NodeName(self, *kids):
self.val = qlast.DropAnnotationValue(
name=kids[2].val,
)