mirror of https://gitee.com/bigwinds/arangodb
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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** mruby/object.h - Object, NilClass, TrueClass, FalseClass 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_OBJECT_H
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#define MRUBY_OBJECT_H
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#define MRB_OBJECT_HEADER \
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enum mrb_vtype tt:8;\
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unsigned int color:3;\
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unsigned int flags:21;\
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struct RClass *c;\
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struct RBasic *gcnext
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/* white: 011, black: 100, gray: 000 */
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#define MRB_GC_GRAY 0
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#define MRB_GC_WHITE_A 1
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#define MRB_GC_WHITE_B (1 << 1)
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#define MRB_GC_BLACK (1 << 2)
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#define MRB_GC_WHITES (MRB_GC_WHITE_A | MRB_GC_WHITE_B)
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#define MRB_GC_COLOR_MASK 7
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#define paint_gray(o) ((o)->color = MRB_GC_GRAY)
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#define paint_black(o) ((o)->color = MRB_GC_BLACK)
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#define paint_white(o) ((o)->color = MRB_GC_WHITES)
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#define paint_partial_white(s, o) ((o)->color = (s)->current_white_part)
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#define is_gray(o) ((o)->color == MRB_GC_GRAY)
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#define is_white(o) ((o)->color & MRB_GC_WHITES)
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#define is_black(o) ((o)->color & MRB_GC_BLACK)
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#define is_dead(s, o) (((o)->color & other_white_part(s) & MRB_GC_WHITES) || (o)->tt == MRB_TT_FREE)
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#define flip_white_part(s) ((s)->current_white_part = other_white_part(s))
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#define other_white_part(s) ((s)->current_white_part ^ MRB_GC_WHITES)
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struct RBasic {
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MRB_OBJECT_HEADER;
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};
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struct RObject {
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MRB_OBJECT_HEADER;
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struct iv_tbl *iv;
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};
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#define mrb_obj_ptr(v) ((struct RObject*)((v).value.p))
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#define RBASIC(obj) ((struct RBasic*)((obj).value.p))
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#define RBASIC_KLASS(v) ((struct RClass *)(((struct RBasic*)((v).value.p))->c))
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#define ROBJECT(v) ((struct RObject*)((v).value.p))
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#define ROBJECT_IVPTR(v) (((struct RObject*)((v).value.p))->iv)
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#define ROBJECT_NUMIV(v) (ROBJECT_IVPTR(v) ? ROBJECT_IVPTR(v)->size : 0)
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#endif /* MRUBY_OBJECT_H */
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