typed_adapters.h File Reference

Implementation of typed adapters for predicate and apply functions. More...

#include "libsapling/dm/graph.h"
#include "libsapling/dm/typed/typed_common.h"

Go to the source code of this file.

Macros
#define	CAST_USER_INFO(TYPE, VAR, INFO)   TYPE VAR = ((struct info_insert *)INFO)->info
	Creates a variable of the specified type with the user information proper. More...
#define	IMPLEMENT_TYPED_ADAPTERS(SYM, TYPE, IMPL)
	Pastes all definitions that implement typed adapters. More...

Detailed Description

Implementation of typed adapters for predicate and apply functions.

Adapters allow predicates and apply functions to be defined without having to expose the node and the implementation information. Adapters provide these predicate and apply functions with a pointer to node's data cast to the appropiate type and the pointer to the user information directly, instead of providing a pointer to the node and the information stack proper. This reduces the number of casts the user has to write when writing a predicate or an apply function.

Macro Definition Documentation

CAST_USER_INFO

#define CAST_USER_INFO	(		TYPE,
			VAR,
			INFO
	)		TYPE VAR = ((struct info_insert *)INFO)->info

Creates a variable of the specified type with the user information proper.

Parameters

TYPE	Type of the variable
VAR	Name of the variable
INFO	Name of function parameter that points to the user information

IMPLEMENT_TYPED_ADAPTERS

#define IMPLEMENT_TYPED_ADAPTERS	(		SYM,
			TYPE,
			IMPL
	)

Pastes all definitions that implement typed adapters.

Attention

This macro is only intended to be used when defining a typed interface for a set implementation.

Parameters

SYM	Prefix symbol for the adapter definitions
TYPE	Type with which the adapters will be dealing with
IMPL	Which set implementation's data will be accessed