ply/type.h

#ifndef _PLY_TYPE_H
#define _PLY_TYPE_H

typedef unsigned int tid_t;

typedef struct alias {
	tid_t type;
	char *name;
} alias_t;

typedef struct scalar {
	char *name;
} scalar_t;

typedef struct pointer {
	tid_t type;
} pointer_t;

typedef struct array {
	tid_t type;
	size_t len;
} array_t;

typedef struct map {
	tid_t type;
	tid_t ktype;
	size_t len;
} map_t;

typedef struct field {
	struct field *next;

	tid_t type;
	size_t offset;
	char *name;
} field_t;

typedef struct sou {
	field_t *fields;
} sou_t;

typedef enum ttype {
	T_INVALID,
	T_NONE,
	T_ALIAS,
	T_SCALAR,
	T_POINTER,
	T_ARRAY,
	T_MAP,
	T_SOU,
} ttype_t;

typedef struct type {
	tid_t tid;

	size_t size;

	ttype_t type;
	union {
		alias_t alias;
		scalar_t scalar;
		pointer_t pointer;
		array_t array;
		map_t map;
		sou_t sou;
	} t;
} type_t;

typedef struct types {
	type_t *types;
	tid_t next;
} types_t;

#define BUILTIN_TYPES				\
	SCALAR(1, tid_v, void)			\
	POINTER(2, tid_vp, 1)			\
						\
	SCALAR(3, tid_c, char)			\
	POINTER(4, tid_cp, 3)			\
	SCALAR(5, tid_uc, unsigned char)	\
	POINTER(6, tid_ucp, 5)			\
						\
	SCALAR(7, tid_s, short)			\
	POINTER(8, tid_sp, 7)			\
	SCALAR(9, tid_us, unsigned short)	\
	POINTER(10, tid_usp, 9)			\
						\
	SCALAR(11, tid_i, int)			\
	POINTER(12, tid_ip, 11)			\
	SCALAR(13, tid_ui, unsigned int)	\
	POINTER(14, tid_uip, 13)		\
						\
	SCALAR(15, tid_l, long)			\
	POINTER(16, tid_lp, 15)			\
	SCALAR(17, tid_ul, unsigned long)	\
	POINTER(18, tid_ulp, 17)		\
						\
	SCALAR(19, tid_ll, long long)		\
	POINTER(20, tid_llp, 19)		\
	SCALAR(21, tid_ull, unsigned long long)	\
	POINTER(22, tid_ullp, 21)

typedef enum builtin_type {
	tid_none = 0,
#define SCALAR(_tid, _name, _) _name = _tid,
#define POINTER(_tid, _name, _) _name = _tid,
BUILTIN_TYPES
#undef SCALAR
#undef POINTER
} builtin_type_t;

#endif	/* _PLY_TYPE_H */