UndoSignature< SIG > Class Template Reference

#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 117 of file command-signature.hpp.

Public Types
using	CaptureSig = typename Case< Ret, Args >::CaptureSig
using	Memento = typename Case< Ret, Args >::Memento
using	OperateSig = typename Case< Ret, Args >::OperateSig
using	UndoOp_Sig = typename Case< Ret, Args >::UndoOp_Sig

Classes
struct	Case
	Case1: defining the Undo-Capture function. More...
struct	Case< void, ARG >
	Case2: defining the actual Undo function. More...

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

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Class Documentation

steam::control::UndoSignature::Case

struct steam::control::UndoSignature::Case

Class Members
typedef RET	Memento
typedef typename Append< ARG, Memento >::List	ExtendedArglist
typedef typename Types < ExtendedArglist >::Seq	ExtendedArgs
typedef typename BuildFunType < void, ARG >::Sig	OperateSig
typedef typename BuildFunType < Ret, ARG >::Sig	CaptureSig
typedef typename BuildFunType < void, ExtendedArgs >::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 typename List	Args
typedef typename SplitLast < Args >::Type	Memento
typedef typename SplitLast < Args >::List	OperationArglist
typedef typename Types < OperationArglist >::Seq	OperationArgs
typedef typename BuildFunType < void, OperationArgs >::Sig	OperateSig
typedef typename BuildFunType < Ret, OperationArgs >::Sig	CaptureSig
typedef typename BuildFunType < void, ARG >::Sig	UndoOp_Sig

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

Collaboration diagram for UndoSignature< SIG >:

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The documentation for this class was generated from the following file:

• command-signature.hpp