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mruby/include/mruby/value.h at cpp_binding · gaffo/mruby · GitHub
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/*
** mruby/value.h - mrb_value definition
**
** See Copyright Notice in mruby.h
*/
#ifndef
MRUBY_VALUE_H
#define
MRUBY_VALUE_H
#ifndef
MRB_NAN_BOXING
enum
mrb_vtype
{
MRB_TT_FALSE
=
0
,
/* 0 */
MRB_TT_FREE
,
/* 1 */
MRB_TT_TRUE
,
/* 2 */
MRB_TT_FIXNUM
,
/* 3 */
MRB_TT_SYMBOL
,
/* 4 */
MRB_TT_UNDEF
,
/* 5 */
MRB_TT_FLOAT
,
/* 6 */
MRB_TT_VOIDP
,
/* 7 */
MRB_TT_MAIN
,
/* 8 */
MRB_TT_OBJECT
,
/* 9 */
MRB_TT_CLASS
,
/* 10 */
MRB_TT_MODULE
,
/* 11 */
MRB_TT_ICLASS
,
/* 12 */
MRB_TT_SCLASS
,
/* 13 */
MRB_TT_PROC
,
/* 14 */
MRB_TT_ARRAY
,
/* 15 */
MRB_TT_HASH
,
/* 16 */
MRB_TT_STRING
,
/* 17 */
MRB_TT_RANGE
,
/* 18 */
MRB_TT_EXCEPTION
,
/* 19 */
MRB_TT_FILE
,
/* 20 */
MRB_TT_ENV
,
/* 21 */
MRB_TT_DATA
,
/* 22 */
MRB_TT_MAXDEFINE
/* 23 */
};
typedef
struct
mrb_value
{
union
{
mrb_float
f
;
void
*
p
;
mrb_int
i
;
mrb_sym
sym
;
}
value
;
enum
mrb_vtype
tt
:
8
;
}
mrb_value
;
#define
mrb_type
(
o
) (o).tt
#define
mrb_float
(
o
) (o).value.f
#define
MRB_SET_VALUE
(
o
,
ttt
,
attr
,
v
) do {\
(o).tt = ttt;\
(o).attr = v;\
} while (0)
static
inline
mrb_value
mrb_float_value
(
mrb_float
f
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_FLOAT
,
value
.
f
,
f
);
return
v
;
}
#else
/* MRB_NAN_BOXING */
#ifdef
MRB_USE_FLOAT
# error
---->> MRB_NAN_BOXING and MRB_USE_FLOAT conflict <<----
#endif
enum
mrb_vtype
{
MRB_TT_FALSE
=
1
,
/* 1 */
MRB_TT_FREE
,
/* 2 */
MRB_TT_TRUE
,
/* 3 */
MRB_TT_FIXNUM
,
/* 4 */
MRB_TT_SYMBOL
,
/* 5 */
MRB_TT_UNDEF
,
/* 6 */
MRB_TT_FLOAT
,
/* 7 */
MRB_TT_VOIDP
,
/* 8 */
MRB_TT_MAIN
,
/* 9 */
MRB_TT_OBJECT
,
/* 10 */
MRB_TT_CLASS
,
/* 11 */
MRB_TT_MODULE
,
/* 12 */
MRB_TT_ICLASS
,
/* 13 */
MRB_TT_SCLASS
,
/* 14 */
MRB_TT_PROC
,
/* 15 */
MRB_TT_ARRAY
,
/* 16 */
MRB_TT_HASH
,
/* 17 */
MRB_TT_STRING
,
/* 18 */
MRB_TT_RANGE
,
/* 19 */
MRB_TT_EXCEPTION
,
/* 20 */
MRB_TT_FILE
,
/* 21 */
MRB_TT_ENV
,
/* 22 */
MRB_TT_DATA
,
/* 23 */
MRB_TT_MAXDEFINE
/* 24 */
};
#ifdef
MRB_ENDIAN_BIG
#define
MRB_ENDIAN_LOHI
(
a
,
b
) a b
#else
#define
MRB_ENDIAN_LOHI
(
a
,
b
) b a
#endif
typedef
struct
mrb_value
{
union
{
mrb_float
f
;
struct
{
MRB_ENDIAN_LOHI
(
uint32_t
ttt
;
,
union
{
void
*
p
;
mrb_int
i
;
mrb_sym
sym
;
}
value
;
)
};
};
}
mrb_value
;
#define
mrb_tt
(
o
) ((o).ttt & 0xff)
#define
mrb_mktt
(
tt
) (0xfff00000|(tt))
#define
mrb_type
(
o
) ((uint32_t)0xfff00000 < (o).ttt ? mrb_tt(o) : MRB_TT_FLOAT)
#define
mrb_float
(
o
) (o).f
#define
MRB_SET_VALUE
(
o
,
tt
,
attr
,
v
) do {\
(o).ttt = mrb_mktt(tt);\
(o).attr = v;\
} while (0)
static
inline
mrb_value
mrb_float_value
(
mrb_float
f
)
{
mrb_value
v
;
if
(
f
!=
f
) {
v
.
ttt
=
0x7ff80000
;
v
.
value
.
i
=
0
;
}
else
{
v
.
f
=
f
;
}
return
v
;
}
#endif
/* MRB_NAN_BOXING */
#define
mrb_fixnum
(
o
) (o).value.i
#define
mrb_symbol
(
o
) (o).value.sym
#define
mrb_object
(
o
) ((struct RBasic *) (o).value.p)
#define
mrb_voidp
(
o
) (o).value.p
#define
mrb_fixnum_p
(
o
) (mrb_type(o) == MRB_TT_FIXNUM)
#define
mrb_float_p
(
o
) (mrb_type(o) == MRB_TT_FLOAT)
#define
mrb_undef_p
(
o
) (mrb_type(o) == MRB_TT_UNDEF)
#define
mrb_nil_p
(
o
) (mrb_type(o) == MRB_TT_FALSE && !(o).value.i)
#define
mrb_symbol_p
(
o
) (mrb_type(o) == MRB_TT_SYMBOL)
#define
mrb_array_p
(
o
) (mrb_type(o) == MRB_TT_ARRAY)
#define
mrb_string_p
(
o
) (mrb_type(o) == MRB_TT_STRING)
#define
mrb_hash_p
(
o
) (mrb_type(o) == MRB_TT_HASH)
#define
mrb_voidp_p
(
o
) (mrb_type(o) == MRB_TT_VOIDP)
#define
mrb_test
(
o
) (mrb_type(o) != MRB_TT_FALSE)
#define
MRB_OBJECT_HEADER
\
enum mrb_vtype tt:8;\
unsigned int color:3;\
unsigned int flags:21;\
struct RClass *c;\
struct RBasic *gcnext
/* white: 011, black: 100, gray: 000 */
#define
MRB_GC_GRAY
0
#define
MRB_GC_WHITE_A
1
#define
MRB_GC_WHITE_B
(1 << 1)
#define
MRB_GC_BLACK
(1 << 2)
#define
MRB_GC_WHITES
(MRB_GC_WHITE_A | MRB_GC_WHITE_B)
#define
MRB_GC_COLOR_MASK
7
#define
paint_gray
(
o
) ((o)->color = MRB_GC_GRAY)
#define
paint_black
(
o
) ((o)->color = MRB_GC_BLACK)
#define
paint_white
(
o
) ((o)->color = MRB_GC_WHITES)
#define
paint_partial_white
(
s
,
o
) ((o)->color = (s)->current_white_part)
#define
is_gray
(
o
) ((o)->color == MRB_GC_GRAY)
#define
is_white
(
o
) ((o)->color & MRB_GC_WHITES)
#define
is_black
(
o
) ((o)->color & MRB_GC_BLACK)
#define
is_dead
(
s
,
o
) (((o)->color & other_white_part(s) & MRB_GC_WHITES) || (o)->tt == MRB_TT_FREE)
#define
flip_white_part
(
s
) ((s)->current_white_part = other_white_part(s))
#define
other_white_part
(
s
) ((s)->current_white_part ^ MRB_GC_WHITES)
struct
RBasic
{
MRB_OBJECT_HEADER
;
};
#define
mrb_basic
(
v
) ((struct RBasic*)((v).value.p))
struct
RObject
{
MRB_OBJECT_HEADER
;
struct
iv_tbl
*
iv
;
};
#define
mrb_obj_ptr
(
v
) ((struct RObject*)((v).value.p))
#define
mrb_immediate_p
(
x
) (mrb_type(x) <= MRB_TT_MAIN)
#define
mrb_special_const_p
(
x
) mrb_immediate_p(x)
static
inline
mrb_value
mrb_fixnum_value
(
mrb_int
i
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_FIXNUM
,
value
.
i
,
i
);
return
v
;
}
static
inline
mrb_value
mrb_symbol_value
(
mrb_sym
i
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_SYMBOL
,
value
.
sym
,
i
);
return
v
;
}
static
inline
mrb_value
mrb_obj_value
(
void
*
p
)
{
mrb_value
v
;
struct
RBasic
*
b
=
(
struct
RBasic
*
)
p
;
MRB_SET_VALUE
(
v
,
b
->
tt
,
value
.
p
,
p
);
return
v
;
}
static
inline
mrb_value
mrb_voidp_value
(
void
*
p
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_VOIDP
,
value
.
p
,
p
);
return
v
;
}
static
inline
mrb_value
mrb_false_value
(
void
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_FALSE
,
value
.
i
,
1
);
return
v
;
}
static
inline
mrb_value
mrb_nil_value
(
void
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_FALSE
,
value
.
i
,
0
);
return
v
;
}
static
inline
mrb_value
mrb_true_value
(
void
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_TRUE
,
value
.
i
,
1
);
return
v
;
}
static
inline
mrb_value
mrb_undef_value
(
void
)
{
mrb_value
v
;
MRB_SET_VALUE
(
v
,
MRB_TT_UNDEF
,
value
.
i
,
0
);
return
v
;
}
#endif
/* MRUBY_OBJECT_H */
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