System.Process.Lens.StdStream

StdStream prisms and classy prisms.

Prisms

_Inherit :: Prism' StdStream StdStream

A prism into the Inherit structure of a StdStream

_UseHandle :: Prism' StdStream Handle

A prism into the UseHandle structure's Handle for a StdStream

_CreatePipe :: Prism' StdStream StdStream

A prism into the CreatePipe structure of a StdStream

_NoStream :: Prism' StdStream StdStream

A prism into the NoStream structure of a StdStream

Classy Prisms

class IsInherit a where

Class constraint proving a type has a prism into an Inherit structure. In general, this seems redundant, however, this class is a proof on a that a is an Inherit, which is a wonderful thing to prove.

Methods

_Inherits :: Prism' a StdStream

Instances

IsInherit StdStream

Defined in System.Process.Lens.StdStream

Methods

_Inherits :: Prism' StdStream StdStream

class IsUseHandle a where

Class constraint proving a type has a prism into a Handle via a UseHandle structure.

Methods

_UsesHandle :: Prism' a Handle

Instances

IsUseHandle StdStream

Defined in System.Process.Lens.StdStream

Methods

_UsesHandle :: Prism' StdStream Handle

class IsCreatePipe a where

Class constraint proving a type has a prism into a Handle via a UseHandle structure.

Methods

_CreatesPipe :: Prism' a StdStream

Instances

IsCreatePipe StdStream

Defined in System.Process.Lens.StdStream

Methods

_CreatesPipe :: Prism' StdStream StdStream

class IsNoStream a where

Class constraint proving a type has a prism into a Handle via a UseHandle structure.

Methods

_NoStreams :: Prism' a StdStream

Instances

IsNoStream StdStream

Defined in System.Process.Lens.StdStream

Methods

_NoStreams :: Prism' StdStream StdStream

Combinators

usehandleOf :: IsUseHandle a => Handle -> a

Inject a handle into something with a prism into the handle