Building a Preface_specs.State, a State transformer.
Build an Preface_specs.STATE over an Inner Preface_specs.MONAD.
module Over_monad
(M : Preface_specs.MONAD)
(State : Preface_specs.Types.T0) :
Preface_specs.STATE with type state = State.t and type 'a monad = 'a M.tIf there are complementary implementations to Preface_specs.MONAD attached to the Inner Preface_specs.MONAD type, it is possible to promote the Preface_specs.STATE API with these complementary implementations
If the Inner Preface_specs.MONAD is also a Preface_specs.FUNCTOR, the State monad is also a Preface_specs.FUNCTOR.
module Functor
(F : Preface_specs.FUNCTOR)
(State : Preface_specs.Types.T0) :
Preface_specs.FUNCTOR with type 'a t = State.t -> ('a * State.t) F.tIf the Inner Preface_specs.MONAD is also an Preface_specs.MONAD, the State monad is also an Preface_specs.APPLICATIVE.
module Applicative
(M : Preface_specs.MONAD)
(State : Preface_specs.Types.T0) :
Preface_specs.APPLICATIVE with type 'a t = State.t -> ('a * State.t) M.tIf the Inner Preface_specs.MONAD is also an Preface_specs.MONAD_PLUS, the State monad is also an Preface_specs.ALTERNATIVE.
module Alternative
(M : Preface_specs.MONAD_PLUS)
(State : Preface_specs.Types.T0) :
Preface_specs.ALTERNATIVE with type 'a t = State.t -> ('a * State.t) M.tIf the Inner Preface_specs.MONAD is also a Preface_specs.MONAD, the State monad is also a Preface_specs.MONAD (this is this functor which is used in the full API definition).
module Monad
(M : Preface_specs.MONAD)
(State : Preface_specs.Types.T0) :
Preface_specs.MONAD with type 'a t = State.t -> ('a * State.t) M.tIf the Inner Preface_specs.MONAD is also a Preface_specs.MONAD_PLUS, the State monad is also a Preface_specs.MONAD_PLUS.
module Monad_plus
(M : Preface_specs.MONAD_PLUS)
(State : Preface_specs.Types.T0) :
Preface_specs.MONAD_PLUS with type 'a t = State.t -> ('a * State.t) M.tAdvanced way to build an Preface_specs.STATE, constructing and assembling a component-by-component of Preface_specs.STATE. (In order to provide your own implementation for some features.)
module Core_over_monad
(M : Preface_specs.MONAD)
(State : Preface_specs.Types.T0) :
Preface_specs.State.CORE with type state = State.t and type 'a monad = 'a M.t