concepts.dsl.expression.NullExpression#

class NullExpression[source]#

Bases: ObjectOrValueOutputExpression

Methods

`cached_string`([max_length])
`check_arguments`()

Attributes

`is_and_expr`
`is_constant_bool_expr`
`is_exists_expr`
`is_forall_expr`
`is_implies_expr`
`is_not_expr`
`is_null_expression`
`is_object_output_expression`
`is_or_expr`
`is_value_output_expression`
`is_variable_assignment_expression`
`is_xor_expr`
`return_type`
`dtype`	The type of the null expression.

__init__(dtype)[source]#

Parameters:: dtype (ObjectType | ValueType | SequenceType)

__new__(**kwargs)#

cached_string(max_length=None)#

Parameters:: max_length (int | None)

check_arguments()#

dtype: ObjectType | ValueType | SequenceType#: The type of the null expression.

property is_and_expr: bool#

property is_constant_bool_expr: bool#

property is_exists_expr: bool#

property is_forall_expr: bool#

property is_implies_expr: bool#

property is_not_expr: bool#

property is_null_expression: bool#

property is_object_output_expression: bool#

property is_or_expr: bool#

property is_value_output_expression: bool#

property is_variable_assignment_expression: bool#

property is_xor_expr: bool#

property return_type: ObjectType | ValueType | SequenceType#