#include "steam/control/command-signature.hpp"

Description

template<typename SIG>
class steam::control::UndoSignature< SIG >

Type analysis helper template.

Used for dissecting a given type signature to derive the related basic operation signature, the signature of a possible Undo-function and the signature necessary for capturing undo information. The implementation relies on re-binding an embedded type defining template, based on the actual case, as identified by the structure of the given parameter signature.

To use this template, it is instantiated with the signature of a functor object in question. Depending on the actual situation, the compiler will then either pick Case1 or Case2 – thus allowing the client in any case to pick up the correct signatures for Operation, Capture and Undo-function from the public typedefs within UndoSignature

Definition at line 108 of file command-signature.hpp.

Classes
struct	Case
	Case1: defining the Undo-Capture function. More...

struct	Case< void, ARG >
	Case2: defining the actual Undo function. More...

Public Types
using	CaptureSig = Case< Ret, Args >::CaptureSig

using	UndoOp_Sig = Case< Ret, Args >::UndoOp_Sig

using	OperateSig = Case< Ret, Args >::OperateSig

using	Memento = Case< Ret, Args >::Memento

Private Types
using	Args = _Fun< SIG >::Args

using	Ret = _Fun< SIG >::Ret

Class Documentation

◆ steam::control::UndoSignature::Case

struct steam::control::UndoSignature::Case

Class Members
typedef RET	Memento
typedef List	ExtendedArglist
typedef Seq	ExtendedArgs
typedef Sig	OperateSig
typedef Sig	CaptureSig
typedef Sig	UndoOp_Sig

Collaboration diagram for UndoSignature< SIG >::Case< RET, ARG >:

◆ steam::control::UndoSignature::Case< void, ARG >

struct steam::control::UndoSignature::Case< void, ARG >

Class Members
typedef List	Args
typedef Type	Memento
typedef List	OperationArglist
typedef Seq	OperationArgs
typedef Sig	OperateSig
typedef Sig	CaptureSig
typedef Sig	UndoOp_Sig