v4k-git-backup/engine/split/v4k_reflect.h

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2024-08-12 14:55:46 +00:00
// C reflection: enums, functions, structs, members and anotations.
// - rlyeh, public domain
//
// @todo: nested structs? pointers in members?
// @todo: declare TYPEDEF(vec3, float[3]), TYPEDEF(mat4, vec4[4]/*float[16]*/)
#ifndef OBJTYPE
#define OBJTYPE(T) 0
#endif
typedef struct reflect_t {
unsigned id, objtype;
union {
unsigned sz;
unsigned member_offset;
unsigned enum_value;
};
const char *name;
const char *info;
void *addr;
unsigned parent;
const char *type;
unsigned bytes;
} reflect_t;
// inscribe api
#define ENUM(V, ...) \
enum_inscribe(#V,V, "E" __VA_ARGS__ " ("FILELINE")")
#define FUNCTION(F, ...) \
function_inscribe(#F,(void*)F, "F" __VA_ARGS__ " ("FILELINE")")
#define STRUCT(T, type, member, ...) \
struct_inscribe(#T,sizeof(T),OBJTYPE(T),"S" " ("FILELINE")"), \
type_inscribe(#type,sizeof(((T){0}).member),"T" __VA_ARGS__ " ("FILELINE")"), \
member_inscribe(#T, #member,(uintptr_t)&((T*)0)->member, "M" __VA_ARGS__ " ("FILELINE")", #type, sizeof(((T){0}).member) )
// find api
API unsigned enum_find(const char *E);
API void * function_find(const char *F);
API reflect_t member_find(const char *T, const char *M); /// find specific member
API void * member_findptr(void *obj, const char *T, const char *M); // @deprecate
API array(reflect_t)* members_find(const char *T);
// iterate members in a struct
#define each_member(T,R) \
(array(reflect_t) *found_ = members_find(T); found_; found_ = 0) \
for(int it_ = 0, end_ = array_count(*found_); it_ != end_; ++it_ ) \
for(reflect_t *R = &(*found_)[it_]; R; R = 0 )
// private api, still exposed
API void type_inscribe(const char *TY,unsigned TYsz,const char *infos);
API void enum_inscribe(const char *E,unsigned Eval,const char *infos);
API void struct_inscribe(const char *T,unsigned Tsz,unsigned OBJTYPEid, const char *infos);
API void member_inscribe(const char *T, const char *M,unsigned Msz, const char *infos, const char *type, unsigned bytes);
API void function_inscribe(const char *F,void *func,const char *infos);
API const char* symbol_naked(const char *s);
API int ui_reflect(const char *mask); // *, model* or NULL