#include "steam/control/command-impl-clone-builder.hpp"

Description

Visitor to support creating a CommandImpl clone.

Created and managed by CommandRegistry, on clone creation an instance of this builder object is passed down to re-gain a fully typed context, necessary for re-wiring the undo functors and the memento storage within the cloned parts.

Definition at line 114 of file command-impl-clone-builder.hpp.

Public Member Functions
	CommandImplCloneBuilder (TypedAllocationManager &allo)

template<typename ARG >
void	buildCloneContext (ARG const &origArgHolder)
	to be executed from within the specifically typed context of a concrete command StorageHolder; allocate a clone copy and then prepare a new UNDO-Functor, which is correctly wired with the memento holder within this new clone closure.

UndoMutation const &	clonedUndoMutation ()
	after visitation: use pre-built bits to provide a cloned UndoFunctor

PClo const &	clonedClosuere ()
	after visitation: provide cloned StorageHolder, but already stripped down to the generic usage type

Private Types
typedef InPlaceBuffer< impl::CloneContext, sizeof(impl::ClonedContext)>	ContextHolder

Private Attributes
TypedAllocationManager &	allocator_

ContextHolder	newContext_

Additional Inherited Members
Private Member Functions inherited from NonCopyable
	~NonCopyable ()=default

	NonCopyable ()=default

	NonCopyable (NonCopyable const &)=delete

NonCopyable &	operator= (NonCopyable const &)=delete

Constructor & Destructor Documentation

◆ CommandImplCloneBuilder()

CommandImplCloneBuilder ( TypedAllocationManager & allo )

inline

Definition at line 123 of file command-impl-clone-builder.hpp.

Member Typedef Documentation

◆ ContextHolder

typedef InPlaceBuffer<impl::CloneContext, sizeof(impl::ClonedContext)> ContextHolder

private

Definition at line 117 of file command-impl-clone-builder.hpp.

Member Function Documentation

◆ buildCloneContext()

template<typename ARG >

void buildCloneContext ( ARG const & origArgHolder )

inline

to be executed from within the specifically typed context of a concrete command StorageHolder; allocate a clone copy and then prepare a new UNDO-Functor, which is correctly wired with the memento holder within this new clone closure.

After that point, these prepared parts can be retrieved through the public accessor functions; they will be used by the command registry to put together a complete clone copy of the original CommandImpl.

Definition at line 139 of file command-impl-clone-builder.hpp.

References CommandImplCloneBuilder::allocator_, and CommandImplCloneBuilder::newContext_.

Referenced by StorageHolder< SIG, MEM >::accept().

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