fail ( value singleton -- mvalue )

Vocabulary

monads

Inputs

value	an object
singleton	an object

Outputs

mvalue

an object

Definition

IN: monads

GENERIC: fail ( value singleton -- mvalue )

Methods

USING: kernel monads ;

M: array-monad fail 2drop { } ;


USING: kernel monads ;

M: either-monad fail drop <left> ;


USING: kernel monads ;

M: identity-monad fail "Fail" throw ;


USING: kernel lists monads ;

M: list-monad fail 2drop nil ;


USING: kernel monads ;

M: maybe-monad fail 2drop nothing ;


USING: monads ;

M: monad fail monad-of fail ;


USING: kernel monads ;

M: reader-monad fail "Fail" throw ;


USING: kernel monads ;

M: state-monad fail "Fail" throw ;


USING: kernel monads ;

M: writer-monad fail "Fail" throw ;