mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Seba Gamboa
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*
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** mruby/class.h - Class class
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRUBY_CLASS_H
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#define MRUBY_CLASS_H
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#include "mruby/common.h"
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/**
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* @file mruby/class.h
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* @defgroup mruby_class Class class
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* @ingroup mruby
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* @{
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*/
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MRB_BEGIN_DECL
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struct RClass {
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MRB_OBJECT_HEADER;
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struct iv_tbl *iv;
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struct kh_mt *mt;
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struct RClass *super;
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};
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#define mrb_class_ptr(v) ((struct RClass*)(mrb_ptr(v)))
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#define RCLASS_SUPER(v) (((struct RClass*)(mrb_ptr(v)))->super)
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#define RCLASS_IV_TBL(v) (((struct RClass*)(mrb_ptr(v)))->iv)
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#define RCLASS_M_TBL(v) (((struct RClass*)(mrb_ptr(v)))->mt)
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static inline struct RClass*
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mrb_class(mrb_state *mrb, mrb_value v)
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{
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switch (mrb_type(v)) {
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case MRB_TT_FALSE:
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if (mrb_fixnum(v))
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return mrb->false_class;
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return mrb->nil_class;
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case MRB_TT_TRUE:
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return mrb->true_class;
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case MRB_TT_SYMBOL:
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return mrb->symbol_class;
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case MRB_TT_FIXNUM:
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return mrb->fixnum_class;
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case MRB_TT_FLOAT:
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return mrb->float_class;
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case MRB_TT_CPTR:
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return mrb->object_class;
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case MRB_TT_ENV:
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return NULL;
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default:
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return mrb_obj_ptr(v)->c;
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}
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}
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// TODO: figure out where to put user flags
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#define MRB_FLAG_IS_PREPENDED (1 << 19)
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#define MRB_FLAG_IS_ORIGIN (1 << 20)
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#define MRB_CLASS_ORIGIN(c) do {\
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if (c->flags & MRB_FLAG_IS_PREPENDED) {\
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c = c->super;\
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while (!(c->flags & MRB_FLAG_IS_ORIGIN)) {\
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c = c->super;\
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}\
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}\
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} while (0)
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#define MRB_INSTANCE_TT_MASK (0xFF)
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#define MRB_SET_INSTANCE_TT(c, tt) c->flags = ((c->flags & ~MRB_INSTANCE_TT_MASK) | (char)tt)
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#define MRB_INSTANCE_TT(c) (enum mrb_vtype)(c->flags & MRB_INSTANCE_TT_MASK)
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MRB_API struct RClass* mrb_define_class_id(mrb_state*, mrb_sym, struct RClass*);
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MRB_API struct RClass* mrb_define_module_id(mrb_state*, mrb_sym);
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MRB_API struct RClass *mrb_vm_define_class(mrb_state*, mrb_value, mrb_value, mrb_sym);
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MRB_API struct RClass *mrb_vm_define_module(mrb_state*, mrb_value, mrb_sym);
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MRB_API void mrb_define_method_raw(mrb_state*, struct RClass*, mrb_sym, struct RProc *);
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MRB_API void mrb_define_method_id(mrb_state *mrb, struct RClass *c, mrb_sym mid, mrb_func_t func, mrb_aspec aspec);
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MRB_API void mrb_alias_method(mrb_state *mrb, struct RClass *c, mrb_sym a, mrb_sym b);
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MRB_API struct RClass *mrb_class_outer_module(mrb_state*, struct RClass *);
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MRB_API struct RProc *mrb_method_search_vm(mrb_state*, struct RClass**, mrb_sym);
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MRB_API struct RProc *mrb_method_search(mrb_state*, struct RClass*, mrb_sym);
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MRB_API struct RClass* mrb_class_real(struct RClass* cl);
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void mrb_gc_mark_mt(mrb_state*, struct RClass*);
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size_t mrb_gc_mark_mt_size(mrb_state*, struct RClass*);
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void mrb_gc_free_mt(mrb_state*, struct RClass*);
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/** @} */
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MRB_END_DECL
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#endif /* MRUBY_CLASS_H */
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