/**
 * @file di/pp.h
 * Auxiliary preprocessor helper macros
 */
#ifndef INCLUDE_DI_PP_H_
#define INCLUDE_DI_PP_H_

#define DI_PP_CONCAT(A, B) A B

/* Generate "__FILE__:__LINE__" string at compile time */
#define DI_PP_FILE_LINE \
	DI_PP_CONCAT( \
	DI_PP_CONCAT( \
		__FILE__, \
		":"), \
	DI_PP_STRINGIZE(__LINE__))

/* Generate <component>:<file>:<line> string at compile time */
#define DI_PP_COMPONENT_FILE_LINE(component) \
	DI_PP_CONCAT( \
	DI_PP_CONCAT( \
		DI_PP_STRINGIZE(component), \
		":"), \
	DI_PP_FILE_LINE)

/* Generate <component>:<file>:<line>:<msg> string at compile time */
#define DI_PP_COMPONENT_FILE_LINE_MSG(component, msg) \
	DI_PP_CONCAT( \
	DI_PP_CONCAT( \
		DI_PP_COMPONENT_FILE_LINE(component), \
		":"), \
	msg)

/*
 * Concatenate preprocessor tokens A and B without expanding macro definitions
 * (however, if invoked from a macro, macro arguments are expanded).
 */
#define DI_PP_CAT_NX(A, B) A ## B

/*
 * Concatenate preprocessor tokens A and B after macro-expanding them.
 */
#define DI_PP_CAT(A, B) DI_PP_CAT_NX(A, B)

/*
 * Turn A into a string literal without expanding macro definitions
 * (however, if invoked from a macro, macro arguments are expanded).
 */
#define DI_PP_STRINGIZE_NX(A) #A

/*
 * Turn A into a string literal after macro-expanding it.
 */
#define DI_PP_STRINGIZE(A) DI_PP_STRINGIZE_NX(A)

#endif /* INCLUDE_DI_PP_H_ */