tree-diff-traits.hpp File Reference

Definitions and Properties to guide automated tree mutator binding. More...

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Description

Definitions and Properties to guide automated tree mutator binding.

Decision how to access the target structure and how to construct a suitable TreeMutator as attached to this opaque target data.

In a nutshell, if some private data structure wants to receive mutation diff messages...

• it must either implement the interface DiffMutable
• or provide the extension point void buildMutator(TreeMutator::Handle) Additionally, when the size of the custom TreeMutator object exceeds some hard wired limit (200 bytes), then the target type also needs to define the extension point size_t treeMutatorSize(TargetType)

All of this boils down to somewhere / somehow using the TreeMutator::Builder (a DSL API) to construct a custom binding, which allows to talk to our private data structure through the TreeMutator interface.

See also

DiffComplexApplication_test

DiffTreeApplication_test

DiffListApplication_test

GenNode_test

tree-diff.hpp

Definition in file tree-diff-traits.hpp.

#include "lib/diff/tree-mutator.hpp"
#include "lib/diff/diff-mutable.hpp"
#include "lib/null-value.hpp"
#include "lib/util.hpp"
#include <utility>
#include <stack>

Namespaces
namespace	lib
	Implementation namespace for support and library code.
namespace	lib::diff

Classes
struct	TreeMutatorSizeTraits< TAR, SEL >
	Heuristics to guide the allocation for nested TreeMutator. More...
struct	defines_custom_BufferSize< T >
struct	TreeMutatorSizeTraits< TAR, enable_if< defines_custom_BufferSize< TAR > > >
class	exposes_MutatorBuilder< T >
	helper to detect presence of a TreeMutator builder function More...
struct	TreeDiffTraits< TAR, SEL >
struct	TreeDiffTraits< TAR, enable_if< is_base_of< DiffMutable, TAR > > >
struct	TreeDiffTraits< TAR, enable_if< exposes_MutatorBuilder< TAR > > >
class	TreeDiffTraits< TAR, enable_if< exposes_MutatorBuilder< TAR > > >::Wrapper

Functions
constexpr size_t	treeMutatorSize (...)
template<typename T >
constexpr T *	getSelector ()
template<class TAR >
TreeDiffTraits< TAR >::Ret	mutatorBinding (TAR &subject)
	public access point to this configuration machinery