58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
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// C reflection: enums, functions, structs, members and anotations.
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// - rlyeh, public domain
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//
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// @todo: nested structs? pointers in members?
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// @todo: declare TYPEDEF(vec3, float[3]), TYPEDEF(mat4, vec4[4]/*float[16]*/)
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#define ifdef_objapi(T,...) __VA_ARGS__
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typedef struct reflected_t {
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unsigned id, objtype;
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unsigned sz;
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const char *name;
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const char *info;
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void *addr;
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unsigned parent;
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const char *type;
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} reflected_t;
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// inscribe api
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#define ENUM(V, value_annotations) \
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enum_inscribe(#V,intern(#V),V, value_annotations)
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#define FUNCTION(F, function_annotations) \
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function_inscribe(#F,intern(#F),(void*)F, function_annotations)
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#define STRUCT(T, type, member, member_annotations) \
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struct_inscribe(#T,intern(#T),sizeof(T),ifdef(objapi,OBJTYPE_##T,0),NULL), \
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type_inscribe(#type,intern(#type),sizeof(((T){0}).member),member_annotations), \
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member_inscribe(intern(#T), #member,intern(#member),(uintptr_t)&((T*)0)->member, member_annotations, #type )
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// find api
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API unsigned enum_find(const char *E);
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API void * function_find(const char *F);
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API reflected_t member_find(const char *T, const char *M); /// find specific member
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API void * member_findptr(void *obj, const char *T, const char *M);
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API array(reflected_t) members_find(const char *T);
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// iterate members in a struct
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#define each_member(T,R) \
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(array(reflected_t)*found_ = map_find(members, intern(T)); found_; found_ = 0) \
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for(int it_ = 0, end_ = array_count(*found_); it_ != end_; ++it_ ) \
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for(reflected_t *R = (*found_)+it_; R; R = 0 )
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// private api, still exposed
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API void type_inscribe(const char *TY,unsigned TYid,unsigned TYsz,const char *infos);
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API void enum_inscribe(const char *E,unsigned Eid,unsigned Eval,const char *infos);
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API void struct_inscribe(const char *T,unsigned Tid,unsigned Tsz,unsigned OBJTYPEid, const char *infos);
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API void member_inscribe(unsigned Tid, const char *M,unsigned Mid,unsigned Msz, const char *infos, const char *type);
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API void function_inscribe(const char *F,unsigned Fid,void *func,const char *infos);
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API void reflected_printf(reflected_t *r);
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API void reflected_printf_all();
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