internal.h: aggregate internal functions.

Internal functions can only be called from within the library.
Functions listed in `mruby/internal.h` can be called from:

* core (src/*.c)
* gems (mrbgems/**/*.c)

But not from the application linked with `libmruby`.

include/mruby/array.h

@@ -85,7 +85,6 @@ struct RArray {
 #define ARY_SET_SHARED_FLAG(a) ((a)->flags |= MRB_ARY_SHARED)
 #define ARY_UNSET_SHARED_FLAG(a) ((a)->flags &= ~MRB_ARY_SHARED)
 
-void mrb_ary_decref(mrb_state*, mrb_shared_array*);
 MRB_API void mrb_ary_modify(mrb_state*, struct RArray*);
 MRB_API mrb_value mrb_ary_new_capa(mrb_state*, mrb_int);
 
@@ -296,8 +295,6 @@ MRB_API mrb_value mrb_ary_join(mrb_state *mrb, mrb_value ary, mrb_value sep);
  */
 MRB_API mrb_value mrb_ary_resize(mrb_state *mrb, mrb_value ary, mrb_int new_len);
 
-/* helper functions */
-mrb_value mrb_ary_subseq(mrb_state *mrb, mrb_value ary, mrb_int beg, mrb_int len);
 
 MRB_END_DECL
 

include/mruby/class.h

@@ -73,8 +73,6 @@ mrb_class(mrb_state *mrb, mrb_value v)
 #define MRB_SET_INSTANCE_TT(c, tt) ((c)->flags = (((c)->flags & ~MRB_INSTANCE_TT_MASK) | (char)(tt)))
 #define MRB_INSTANCE_TT(c) (enum mrb_vtype)((c)->flags & MRB_INSTANCE_TT_MASK)
 
-struct RClass *mrb_vm_define_class(mrb_state*, mrb_value, mrb_value, mrb_sym);
-struct RClass *mrb_vm_define_module(mrb_state*, mrb_value, mrb_sym);
 MRB_API void mrb_define_method_raw(mrb_state*, struct RClass*, mrb_sym, mrb_method_t);
 MRB_API void mrb_alias_method(mrb_state*, struct RClass *c, mrb_sym a, mrb_sym b);
 MRB_API void mrb_remove_method(mrb_state *mrb, struct RClass *c, mrb_sym sym);
@@ -83,15 +81,6 @@ MRB_API mrb_method_t mrb_method_search_vm(mrb_state*, struct RClass**, mrb_sym);
 MRB_API mrb_method_t mrb_method_search(mrb_state*, struct RClass*, mrb_sym);
 
 MRB_API struct RClass* mrb_class_real(struct RClass* cl);
-mrb_value mrb_instance_new(mrb_state *mrb, mrb_value cv);
-
-void mrb_class_name_class(mrb_state*, struct RClass*, struct RClass*, mrb_sym);
-mrb_bool mrb_const_name_p(mrb_state*, const char*, mrb_int);
-mrb_value mrb_class_find_path(mrb_state*, struct RClass*);
-mrb_value mrb_mod_to_s(mrb_state*, mrb_value);
-void mrb_gc_mark_mt(mrb_state*, struct RClass*);
-size_t mrb_gc_mark_mt_size(mrb_state*, struct RClass*);
-void mrb_gc_free_mt(mrb_state*, struct RClass*);
 
 #ifndef MRB_NO_METHOD_CACHE
 void mrb_mc_clear_by_class(mrb_state *mrb, struct RClass* c);

include/mruby/dump.h

@@ -21,12 +21,7 @@ MRB_BEGIN_DECL
 #define MRB_DUMP_STATIC 2
 #define DUMP_DEBUG_INFO MRB_DUMP_DEBUG_INFO  /* deprecated */
 
-int mrb_dump_irep(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size);
 #ifndef MRB_NO_STDIO
-int mrb_dump_irep_binary(mrb_state*, const mrb_irep*, uint8_t, FILE*);
-int mrb_dump_irep_cfunc(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
-int mrb_dump_irep_cstruct(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
-mrb_irep *mrb_read_irep_file(mrb_state*, FILE*);
 MRB_API mrb_value mrb_load_irep_file(mrb_state*,FILE*);
 MRB_API mrb_value mrb_load_irep_file_cxt(mrb_state*, FILE*, mrbc_context*);
 #endif

include/mruby/error.h

@@ -27,11 +27,6 @@ MRB_API void mrb_sys_fail(mrb_state *mrb, const char *mesg);
 MRB_API mrb_value mrb_exc_new_str(mrb_state *mrb, struct RClass* c, mrb_value str);
 #define mrb_exc_new_lit(mrb, c, lit) mrb_exc_new_str(mrb, c, mrb_str_new_lit(mrb, lit))
 MRB_API mrb_value mrb_make_exception(mrb_state *mrb, mrb_int argc, const mrb_value *argv);
-mrb_value mrb_exc_backtrace(mrb_state *mrb, mrb_value exc);
-mrb_value mrb_get_backtrace(mrb_state *mrb);
-void mrb_exc_mesg_set(mrb_state *mrb, struct RException *exc, mrb_value mesg);
-mrb_value mrb_exc_mesg_get(mrb_state *mrb, struct RException *exc);
-
 MRB_API mrb_noreturn void mrb_no_method_error(mrb_state *mrb, mrb_sym id, mrb_value args, const char *fmt, ...);
 
 /* declaration for `fail` method */

include/mruby/gc.h

@@ -84,8 +84,7 @@ typedef struct mrb_gc {
   size_t majorgc_old_threshold;
 } mrb_gc;
 
-MRB_API mrb_bool
-mrb_object_dead_p(struct mrb_state *mrb, struct RBasic *object);
+MRB_API mrb_bool mrb_object_dead_p(struct mrb_state *mrb, struct RBasic *object);
 
 #define MRB_GC_RED 7
 

include/mruby/hash.h

@@ -35,7 +35,6 @@ struct RHash {
 #define mrb_hash_ptr(v)    ((struct RHash*)(mrb_ptr(v)))
 #define mrb_hash_value(p)  mrb_obj_value((void*)(p))
 
-size_t mrb_hash_memsize(mrb_value obj);
 MRB_API mrb_value mrb_hash_new_capa(mrb_state *mrb, mrb_int capa);
 
 /*
@@ -226,11 +225,6 @@ MRB_API void mrb_hash_merge(mrb_state *mrb, mrb_value hash1, mrb_value hash2);
 #define MRB_RHASH_DEFAULT_P(hash) (RHASH(hash)->flags & MRB_HASH_DEFAULT)
 #define MRB_RHASH_PROCDEFAULT_P(hash) (RHASH(hash)->flags & MRB_HASH_PROC_DEFAULT)
 
-/* GC functions */
-void mrb_gc_mark_hash(mrb_state*, struct RHash*);
-size_t mrb_gc_mark_hash_size(mrb_state*, struct RHash*);
-void mrb_gc_free_hash(mrb_state*, struct RHash*);
-
 /* return non zero to break the loop */
 typedef int (mrb_hash_foreach_func)(mrb_state *mrb, mrb_value key, mrb_value val, void *data);
 MRB_API void mrb_hash_foreach(mrb_state *mrb, struct RHash *hash, mrb_hash_foreach_func *func, void *p);

include/mruby/internal.h

@@ -0,0 +1,157 @@
+/**
+** @file mruby/internal.h - Functions only called from within the library
+**
+** See Copyright Notice in mruby.h
+*/
+
+#ifndef MRUBY_INTERNAL_H
+#define MRUBY_INTERNAL_H
+
+#ifdef MRUBY_ARRAY_H
+void mrb_ary_decref(mrb_state*, mrb_shared_array*);
+mrb_value mrb_ary_subseq(mrb_state *mrb, mrb_value ary, mrb_int beg, mrb_int len);
+#endif
+
+#ifdef MRUBY_CLASS_H
+struct RClass *mrb_vm_define_class(mrb_state*, mrb_value, mrb_value, mrb_sym);
+struct RClass *mrb_vm_define_module(mrb_state*, mrb_value, mrb_sym);
+mrb_value mrb_instance_new(mrb_state *mrb, mrb_value cv);
+void mrb_class_name_class(mrb_state*, struct RClass*, struct RClass*, mrb_sym);
+mrb_bool mrb_const_name_p(mrb_state*, const char*, mrb_int);
+mrb_value mrb_class_find_path(mrb_state*, struct RClass*);
+mrb_value mrb_mod_to_s(mrb_state *, mrb_value);
+void mrb_method_added(mrb_state *mrb, struct RClass *c, mrb_sym mid);
+#endif
+
+/* debug */
+size_t mrb_packed_int_len(uint32_t num);
+size_t mrb_packed_int_encode(uint32_t num, uint8_t *p, uint8_t *pend);
+uint32_t mrb_packed_int_decode(const uint8_t *p, const uint8_t **newpos);
+
+/* dump */
+#ifdef MRUBY_IREP_H
+int mrb_dump_irep(mrb_state *mrb, const mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size);
+#ifndef MRB_NO_STDIO
+int mrb_dump_irep_binary(mrb_state*, const mrb_irep*, uint8_t, FILE*);
+int mrb_dump_irep_cfunc(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
+int mrb_dump_irep_cstruct(mrb_state *mrb, const mrb_irep*, uint8_t flags, FILE *f, const char *initname);
+mrb_irep *mrb_read_irep_file(mrb_state*, FILE*);
+#endif
+#endif
+
+/* error */
+mrb_value mrb_exc_inspect(mrb_state *mrb, mrb_value exc);
+mrb_value mrb_exc_backtrace(mrb_state *mrb, mrb_value exc);
+mrb_value mrb_get_backtrace(mrb_state *mrb);
+void mrb_exc_mesg_set(mrb_state *mrb, struct RException *exc, mrb_value mesg);
+mrb_value mrb_exc_mesg_get(mrb_state *mrb, struct RException *exc);
+
+/* gc */
+void mrb_gc_mark_mt(mrb_state*, struct RClass*);
+size_t mrb_gc_mark_mt_size(mrb_state*, struct RClass*);
+void mrb_gc_free_mt(mrb_state*, struct RClass*);
+
+/* hash */
+size_t mrb_hash_memsize(mrb_value obj);
+void mrb_gc_mark_hash(mrb_state*, struct RHash*);
+size_t mrb_gc_mark_hash_size(mrb_state*, struct RHash*);
+void mrb_gc_free_hash(mrb_state*, struct RHash*);
+
+/* irep */
+struct mrb_insn_data mrb_decode_insn(const mrb_code *pc);
+#ifdef MRUBY_IREP_H
+void mrb_irep_free(mrb_state*, struct mrb_irep*);
+void mrb_irep_incref(mrb_state*, struct mrb_irep*);
+void mrb_irep_decref(mrb_state*, struct mrb_irep*);
+void mrb_irep_cutref(mrb_state*, struct mrb_irep*);
+void mrb_irep_remove_lv(mrb_state *mrb, mrb_irep *irep);
+
+static inline const struct mrb_irep_catch_handler *
+mrb_irep_catch_handler_table(const struct mrb_irep *irep)
+{
+  if (irep->clen > 0) {
+    return (const struct mrb_irep_catch_handler*)(irep->iseq + irep->ilen);
+  }
+  else {
+    return (const struct mrb_irep_catch_handler*)NULL;
+  }
+}
+#endif
+
+/* numeric */
+mrb_int mrb_div_int(mrb_state *mrb, mrb_int x, mrb_int y);
+mrb_value mrb_int_add(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_int_sub(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_int_mul(mrb_state *mrb, mrb_value x, mrb_value y);
+
+#ifdef MRB_USE_COMPLEX
+mrb_value mrb_complex_new(mrb_state *mrb, mrb_float x, mrb_float y);
+mrb_value mrb_complex_add(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_complex_sub(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_complex_mul(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_complex_div(mrb_state *mrb, mrb_value x, mrb_value y);
+#endif
+#ifdef MRB_USE_RATIONAL
+mrb_value mrb_rational_new(mrb_state *mrb, mrb_int x, mrb_int y);
+mrb_value mrb_rational_add(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_rational_sub(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_rational_mul(mrb_state *mrb, mrb_value x, mrb_value y);
+mrb_value mrb_rational_div(mrb_state *mrb, mrb_value x, mrb_value y);
+#endif
+
+#ifdef MRUBY_PROC_H
+struct RProc *mrb_proc_new(mrb_state*, const mrb_irep*);
+struct RProc *mrb_closure_new(mrb_state*, const mrb_irep*);
+void mrb_proc_copy(mrb_state *mrb, struct RProc *a, struct RProc *b);
+mrb_int mrb_proc_arity(const struct RProc *p);
+#endif
+
+/* range */
+#ifdef MRUBY_RANGE_H
+mrb_value mrb_get_values_at(mrb_state *mrb, mrb_value obj, mrb_int olen, mrb_int argc, const mrb_value *argv, mrb_value (*func)(mrb_state*, mrb_value, mrb_int));
+void mrb_gc_mark_range(mrb_state *mrb, struct RRange *r);
+#endif
+
+/* string */
+void mrb_gc_free_str(mrb_state*, struct RString*);
+uint32_t mrb_str_hash(mrb_state *mrb, mrb_value str);
+mrb_value mrb_str_dump(mrb_state *mrb, mrb_value str);
+mrb_value mrb_str_inspect(mrb_state *mrb, mrb_value str);
+mrb_bool mrb_str_beg_len(mrb_int str_len, mrb_int *begp, mrb_int *lenp);
+mrb_value mrb_str_byte_subseq(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len);
+mrb_value mrb_str_aref(mrb_state *mrb, mrb_value str, mrb_value idx, mrb_value len);
+
+#ifdef MRB_UTF8_STRING
+mrb_int mrb_utf8len(const char *str, const char *end);
+mrb_int mrb_utf8_strlen(const char *str, mrb_int byte_len);
+#endif
+
+/* variable */
+mrb_value mrb_vm_special_get(mrb_state*, mrb_sym);
+void mrb_vm_special_set(mrb_state*, mrb_sym, mrb_value);
+mrb_value mrb_vm_cv_get(mrb_state*, mrb_sym);
+void mrb_vm_cv_set(mrb_state*, mrb_sym, mrb_value);
+mrb_value mrb_vm_const_get(mrb_state*, mrb_sym);
+void mrb_vm_const_set(mrb_state*, mrb_sym, mrb_value);
+size_t mrb_obj_iv_tbl_memsize(mrb_value);
+mrb_value mrb_obj_iv_inspect(mrb_state*, struct RObject*);
+void mrb_obj_iv_set_force(mrb_state *mrb, struct RObject *obj, mrb_sym sym, mrb_value v);
+mrb_value mrb_mod_constants(mrb_state *mrb, mrb_value mod);
+mrb_value mrb_f_global_variables(mrb_state *mrb, mrb_value self);
+mrb_value mrb_obj_instance_variables(mrb_state*, mrb_value);
+mrb_value mrb_mod_class_variables(mrb_state*, mrb_value);
+mrb_value mrb_mod_cv_get(mrb_state *mrb, struct RClass * c, mrb_sym sym);
+mrb_bool mrb_mod_cv_defined(mrb_state *mrb, struct RClass * c, mrb_sym sym);
+mrb_bool mrb_ident_p(const char *s, mrb_int len);
+
+/* GC functions */
+void mrb_gc_mark_gv(mrb_state*);
+void mrb_gc_free_gv(mrb_state*);
+void mrb_gc_mark_iv(mrb_state*, struct RObject*);
+size_t mrb_gc_mark_iv_size(mrb_state*, struct RObject*);
+void mrb_gc_free_iv(mrb_state*, struct RObject*);
+
+/* VM */
+mrb_int mrb_ci_bidx(mrb_callinfo *ci);
+
+#endif  /* MRUBY_INTERNAL_H */

include/mruby/irep.h

@@ -112,12 +112,6 @@ MRB_API mrb_value mrb_load_irep_cxt(mrb_state*, const uint8_t*, mrbc_context*);
  */
 MRB_API mrb_value mrb_load_irep_buf_cxt(mrb_state*, const void*, size_t, mrbc_context*);
 
-void mrb_irep_free(mrb_state*, struct mrb_irep*);
-void mrb_irep_incref(mrb_state*, struct mrb_irep*);
-void mrb_irep_decref(mrb_state*, struct mrb_irep*);
-void mrb_irep_cutref(mrb_state*, struct mrb_irep*);
-void mrb_irep_remove_lv(mrb_state *mrb, mrb_irep *irep);
-
 struct mrb_insn_data {
   uint8_t insn;
   uint16_t a;
@@ -126,19 +120,6 @@ struct mrb_insn_data {
   const mrb_code *addr;
 };
 
-struct mrb_insn_data mrb_decode_insn(const mrb_code *pc);
-
-static inline const struct mrb_irep_catch_handler *
-mrb_irep_catch_handler_table(const struct mrb_irep *irep)
-{
-  if (irep->clen > 0) {
-    return (const struct mrb_irep_catch_handler*)(irep->iseq + irep->ilen);
-  }
-  else {
-    return (const struct mrb_irep_catch_handler*)NULL;
-  }
-}
-
 #define mrb_irep_catch_handler_pack(n, v)   uint32_to_bin(n, v)
 #define mrb_irep_catch_handler_unpack(v)    bin_to_uint32(v)
 

include/mruby/numeric.h

@@ -41,9 +41,6 @@ MRB_API mrb_value mrb_num_mul(mrb_state *mrb, mrb_value x, mrb_value y);
 MRB_API mrb_value mrb_integer_to_str(mrb_state *mrb, mrb_value x, mrb_int base);
 MRB_API char *mrb_int_to_cstr(char *buf, size_t len, mrb_int n, mrb_int base);
 
-/* internal function(s) */
-mrb_int mrb_div_int(mrb_state *mrb, mrb_int x, mrb_int y);
-
 /* obsolete function(s); will be removed */
 #define mrb_fixnum_to_str(mrb, x, base) mrb_integer_to_str(mrb, x, base)
 

include/mruby/proc.h

@@ -88,12 +88,8 @@ struct RProc {
 
 #define mrb_proc_ptr(v)    ((struct RProc*)(mrb_ptr(v)))
 
-struct RProc *mrb_proc_new(mrb_state*, const mrb_irep*);
-struct RProc *mrb_closure_new(mrb_state*, const mrb_irep*);
 MRB_API struct RProc *mrb_proc_new_cfunc(mrb_state*, mrb_func_t);
 MRB_API struct RProc *mrb_closure_new_cfunc(mrb_state *mrb, mrb_func_t func, int nlocals);
-void mrb_proc_copy(mrb_state *mrb, struct RProc *a, struct RProc *b);
-mrb_int mrb_proc_arity(const struct RProc *p);
 
 /* following functions are defined in mruby-proc-ext so please include it when using */
 MRB_API struct RProc *mrb_proc_new_cfunc_with_env(mrb_state *mrb, mrb_func_t func, mrb_int argc, const mrb_value *argv);

include/mruby/range.h

@@ -71,8 +71,6 @@ enum mrb_range_beg_len {
 };
 
 MRB_API enum mrb_range_beg_len mrb_range_beg_len(mrb_state *mrb, mrb_value range, mrb_int *begp, mrb_int *lenp, mrb_int len, mrb_bool trunc);
-mrb_value mrb_get_values_at(mrb_state *mrb, mrb_value obj, mrb_int olen, mrb_int argc, const mrb_value *argv, mrb_value (*func)(mrb_state*, mrb_value, mrb_int));
-void mrb_gc_mark_range(mrb_state *mrb, struct RRange *r);
 
 MRB_END_DECL
 

include/mruby/string.h

@@ -114,8 +114,6 @@ struct RStringEmbed {
 #define MRB_STR_EMBED_LEN_MASK (((1 << MRB_STR_EMBED_LEN_BIT) - 1) << MRB_STR_EMBED_LEN_SHIFT)
 #define MRB_STR_TYPE_MASK 15
 
-void mrb_gc_free_str(mrb_state*, struct RString*);
-
 MRB_API void mrb_str_modify(mrb_state *mrb, struct RString *s);
 /* mrb_str_modify() with keeping ASCII flag if set */
 MRB_API void mrb_str_modify_keep_ascii(mrb_state *mrb, struct RString *s);
@@ -423,27 +421,11 @@ MRB_API int mrb_str_cmp(mrb_state *mrb, mrb_value str1, mrb_value str2);
  */
 MRB_API char *mrb_str_to_cstr(mrb_state *mrb, mrb_value str);
 
-uint32_t mrb_str_hash(mrb_state *mrb, mrb_value str);
-mrb_value mrb_str_dump(mrb_state *mrb, mrb_value str);
-
-/**
- * Returns a printable version of str, surrounded by quote marks, with special characters escaped.
- */
-mrb_value mrb_str_inspect(mrb_state *mrb, mrb_value str);
-
 /* For backward compatibility */
 #define mrb_str_cat2(mrb, str, ptr) mrb_str_cat_cstr(mrb, str, ptr)
 #define mrb_str_buf_cat(mrb, str, ptr, len) mrb_str_cat(mrb, str, ptr, len)
 #define mrb_str_buf_append(mrb, str, str2) mrb_str_cat_str(mrb, str, str2)
 
-mrb_bool mrb_str_beg_len(mrb_int str_len, mrb_int *begp, mrb_int *lenp);
-mrb_value mrb_str_byte_subseq(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len);
-
-#ifdef MRB_UTF8_STRING
-mrb_int mrb_utf8len(const char *str, const char *end);
-mrb_int mrb_utf8_strlen(const char *str, mrb_int byte_len);
-#endif
-
 MRB_END_DECL
 
 #endif  /* MRUBY_STRING_H */

include/mruby/variable.h

@@ -14,13 +14,6 @@
  */
 MRB_BEGIN_DECL
 
-mrb_value mrb_vm_special_get(mrb_state*, mrb_sym);
-void mrb_vm_special_set(mrb_state*, mrb_sym, mrb_value);
-mrb_value mrb_vm_cv_get(mrb_state*, mrb_sym);
-void mrb_vm_cv_set(mrb_state*, mrb_sym, mrb_value);
-mrb_value mrb_vm_const_get(mrb_state*, mrb_sym);
-void mrb_vm_const_set(mrb_state*, mrb_sym, mrb_value);
-size_t mrb_obj_iv_tbl_memsize(mrb_value);
 MRB_API mrb_value mrb_const_get(mrb_state*, mrb_value, mrb_sym);
 MRB_API void mrb_const_set(mrb_state*, mrb_value, mrb_sym, mrb_value);
 MRB_API mrb_bool mrb_const_defined(mrb_state*, mrb_value, mrb_sym);
@@ -99,22 +92,6 @@ MRB_API mrb_value mrb_cv_get(mrb_state *mrb, mrb_value mod, mrb_sym sym);
 MRB_API void mrb_mod_cv_set(mrb_state *mrb, struct RClass * c, mrb_sym sym, mrb_value v);
 MRB_API void mrb_cv_set(mrb_state *mrb, mrb_value mod, mrb_sym sym, mrb_value v);
 MRB_API mrb_bool mrb_cv_defined(mrb_state *mrb, mrb_value mod, mrb_sym sym);
-mrb_value mrb_obj_iv_inspect(mrb_state*, struct RObject*);
-void mrb_obj_iv_set_force(mrb_state *mrb, struct RObject *obj, mrb_sym sym, mrb_value v);
-mrb_value mrb_mod_constants(mrb_state *mrb, mrb_value mod);
-mrb_value mrb_f_global_variables(mrb_state *mrb, mrb_value self);
-mrb_value mrb_obj_instance_variables(mrb_state*, mrb_value);
-mrb_value mrb_mod_class_variables(mrb_state*, mrb_value);
-mrb_value mrb_mod_cv_get(mrb_state *mrb, struct RClass * c, mrb_sym sym);
-mrb_bool mrb_mod_cv_defined(mrb_state *mrb, struct RClass * c, mrb_sym sym);
-mrb_bool mrb_ident_p(const char *s, mrb_int len);
-
-/* GC functions */
-void mrb_gc_mark_gv(mrb_state*);
-void mrb_gc_free_gv(mrb_state*);
-void mrb_gc_mark_iv(mrb_state*, struct RObject*);
-size_t mrb_gc_mark_iv_size(mrb_state*, struct RObject*);
-void mrb_gc_free_iv(mrb_state*, struct RObject*);
 
 /* return non zero to break the loop */
 typedef int (mrb_iv_foreach_func)(mrb_state*,mrb_sym,mrb_value,void*);