def visit_class_slot(self, cls: ClassDefinition, aliased_slot_name: str,
slot: SlotDefinition) -> None:
constraint = TripleConstraint()
# Juggling to get the constraint to be either a single triple constraint or an eachof construct
if not self.shape.expression:
self.shape.expression = constraint
elif isinstance(self.shape.expression, TripleConstraint):
self.shape.expression = EachOf(
expressions=[self.shape.expression, constraint])
else:
self.shape.expression.expressions.append(constraint)
constraint.predicate = self._predicate(slot.name)
# JSON-LD generates multi-valued entries as lists
constraint.min = 1 if slot.primary_key or slot.required else 0
constraint.max = 1 if not slot.multivalued or self.collections else -1
# TODO: This should not be hard coded -- figure out where to go with it
rng = IRIREF(META.SlotRangeTypes) if slot.range == 'anytype' else\
self._type_constraint(slot.range) if slot.range and slot.range not in self.schema.classes else\
self._shapeIRI(slot.range)
name_base = ("XSD_" +
self.grounded_slot_range(slot.range)) if isinstance(
rng, NodeConstraint) else str(rng)
constraint.valueExpr = self.gen_multivalued_slot(name_base, rng) \
if slot.multivalued and self.collections else rng
