[439] | 1 | /**
|
---|
| 2 | ** @file mruby/boxing_word.h - word boxing mrb_value definition
|
---|
[270] | 3 | **
|
---|
| 4 | ** See Copyright Notice in mruby.h
|
---|
| 5 | */
|
---|
| 6 |
|
---|
| 7 | #ifndef MRUBY_BOXING_WORD_H
|
---|
| 8 | #define MRUBY_BOXING_WORD_H
|
---|
| 9 |
|
---|
[331] | 10 | #if defined(MRB_INT64) && !defined(MRB_64BIT)
|
---|
| 11 | #error MRB_INT64 cannot be used with MRB_WORD_BOXING in 32-bit mode.
|
---|
| 12 | #endif
|
---|
| 13 |
|
---|
[439] | 14 | #ifndef MRB_WITHOUT_FLOAT
|
---|
[270] | 15 | struct RFloat {
|
---|
| 16 | MRB_OBJECT_HEADER;
|
---|
| 17 | mrb_float f;
|
---|
| 18 | };
|
---|
[439] | 19 | #endif
|
---|
[270] | 20 |
|
---|
| 21 | struct RCptr {
|
---|
| 22 | MRB_OBJECT_HEADER;
|
---|
| 23 | void *p;
|
---|
| 24 | };
|
---|
| 25 |
|
---|
| 26 | enum mrb_special_consts {
|
---|
[439] | 27 | MRB_Qnil = 0,
|
---|
| 28 | MRB_Qfalse = 4,
|
---|
| 29 | MRB_Qtrue = 12,
|
---|
| 30 | MRB_Qundef = 20,
|
---|
[270] | 31 | };
|
---|
| 32 |
|
---|
[439] | 33 | #if defined(MRB_64BIT) && defined(MRB_INT32)
|
---|
| 34 | #define MRB_FIXNUM_SHIFT 0
|
---|
| 35 | #else
|
---|
| 36 | #define MRB_FIXNUM_SHIFT BOXWORD_FIXNUM_SHIFT
|
---|
| 37 | #endif
|
---|
| 38 | #define MRB_SYMBOL_SHIFT BOXWORD_SYMBOL_SHIFT
|
---|
[270] | 39 |
|
---|
[439] | 40 | #define BOXWORD_FIXNUM_BIT_POS 1
|
---|
| 41 | #define BOXWORD_SYMBOL_BIT_POS 2
|
---|
| 42 | #define BOXWORD_FIXNUM_SHIFT BOXWORD_FIXNUM_BIT_POS
|
---|
| 43 | #ifdef MRB_64BIT
|
---|
| 44 | #define BOXWORD_SYMBOL_SHIFT 0
|
---|
| 45 | #else
|
---|
| 46 | #define BOXWORD_SYMBOL_SHIFT BOXWORD_SYMBOL_BIT_POS
|
---|
| 47 | #endif
|
---|
| 48 | #define BOXWORD_FIXNUM_FLAG (1 << (BOXWORD_FIXNUM_BIT_POS - 1))
|
---|
| 49 | #define BOXWORD_SYMBOL_FLAG (1 << (BOXWORD_SYMBOL_BIT_POS - 1))
|
---|
| 50 | #define BOXWORD_FIXNUM_MASK ((1 << BOXWORD_FIXNUM_BIT_POS) - 1)
|
---|
| 51 | #define BOXWORD_SYMBOL_MASK ((1 << BOXWORD_SYMBOL_BIT_POS) - 1)
|
---|
| 52 | #define BOXWORD_IMMEDIATE_MASK 0x07
|
---|
| 53 |
|
---|
| 54 | #define BOXWORD_SHIFT_VALUE(o,n,t) \
|
---|
| 55 | (t)(((long)(o).w) >> BOXWORD_##n##_SHIFT)
|
---|
| 56 | #define BOXWORD_SET_SHIFT_VALUE(o,n,v) \
|
---|
| 57 | ((o).w = (((unsigned long)(v)) << BOXWORD_##n##_SHIFT) | BOXWORD_##n##_FLAG)
|
---|
| 58 | #define BOXWORD_SHIFT_VALUE_P(o,n) \
|
---|
| 59 | (((o).w & BOXWORD_##n##_MASK) == BOXWORD_##n##_FLAG)
|
---|
| 60 | #define BOXWORD_OBJ_TYPE_P(o,n) \
|
---|
| 61 | (!mrb_immediate_p(o) && (o).value.bp->tt == MRB_TT_##n)
|
---|
| 62 |
|
---|
| 63 | /*
|
---|
| 64 | * mrb_value representation:
|
---|
| 65 | *
|
---|
| 66 | * nil : ...0000 0000 (all bits are 0)
|
---|
| 67 | * false : ...0000 0100 (mrb_fixnum(v) != 0)
|
---|
| 68 | * true : ...0000 1100
|
---|
| 69 | * undef : ...0001 0100
|
---|
| 70 | * fixnum: ...IIII III1
|
---|
| 71 | * symbol: ...SSSS SS10 (use only upper 32-bit as symbol value on 64-bit CPU)
|
---|
| 72 | * object: ...PPPP P000 (any bits are 1)
|
---|
| 73 | */
|
---|
[270] | 74 | typedef union mrb_value {
|
---|
| 75 | union {
|
---|
| 76 | void *p;
|
---|
[439] | 77 | #ifdef MRB_64BIT
|
---|
| 78 | /* use struct to avoid bit shift. */
|
---|
[270] | 79 | struct {
|
---|
[439] | 80 | MRB_ENDIAN_LOHI(
|
---|
| 81 | mrb_sym sym;
|
---|
| 82 | ,uint32_t sym_flag;
|
---|
| 83 | )
|
---|
[270] | 84 | };
|
---|
[439] | 85 | #endif
|
---|
[270] | 86 | struct RBasic *bp;
|
---|
[439] | 87 | #ifndef MRB_WITHOUT_FLOAT
|
---|
[270] | 88 | struct RFloat *fp;
|
---|
[439] | 89 | #endif
|
---|
[270] | 90 | struct RCptr *vp;
|
---|
| 91 | } value;
|
---|
| 92 | unsigned long w;
|
---|
| 93 | } mrb_value;
|
---|
| 94 |
|
---|
| 95 | MRB_API mrb_value mrb_word_boxing_cptr_value(struct mrb_state*, void*);
|
---|
[439] | 96 | #ifndef MRB_WITHOUT_FLOAT
|
---|
[270] | 97 | MRB_API mrb_value mrb_word_boxing_float_value(struct mrb_state*, mrb_float);
|
---|
| 98 | MRB_API mrb_value mrb_word_boxing_float_pool(struct mrb_state*, mrb_float);
|
---|
[439] | 99 | #endif
|
---|
[270] | 100 |
|
---|
[439] | 101 | #ifndef MRB_WITHOUT_FLOAT
|
---|
[270] | 102 | #define mrb_float_pool(mrb,f) mrb_word_boxing_float_pool(mrb,f)
|
---|
[439] | 103 | #endif
|
---|
[270] | 104 |
|
---|
| 105 | #define mrb_ptr(o) (o).value.p
|
---|
| 106 | #define mrb_cptr(o) (o).value.vp->p
|
---|
[439] | 107 | #ifndef MRB_WITHOUT_FLOAT
|
---|
[270] | 108 | #define mrb_float(o) (o).value.fp->f
|
---|
[439] | 109 | #endif
|
---|
| 110 | #define mrb_fixnum(o) BOXWORD_SHIFT_VALUE(o, FIXNUM, mrb_int)
|
---|
| 111 | #ifdef MRB_64BIT
|
---|
[270] | 112 | #define mrb_symbol(o) (o).value.sym
|
---|
[439] | 113 | #else
|
---|
| 114 | #define mrb_symbol(o) BOXWORD_SHIFT_VALUE(o, SYMBOL, mrb_sym)
|
---|
| 115 | #endif
|
---|
| 116 | #define mrb_bool(o) (((o).w & ~(unsigned long)MRB_Qfalse) != 0)
|
---|
[270] | 117 |
|
---|
[439] | 118 | #define mrb_immediate_p(o) ((o).w & BOXWORD_IMMEDIATE_MASK || (o).w == MRB_Qnil)
|
---|
| 119 | #define mrb_fixnum_p(o) BOXWORD_SHIFT_VALUE_P(o, FIXNUM)
|
---|
| 120 | #ifdef MRB_64BIT
|
---|
| 121 | #define mrb_symbol_p(o) ((o).value.sym_flag == BOXWORD_SYMBOL_FLAG)
|
---|
| 122 | #else
|
---|
| 123 | #define mrb_symbol_p(o) BOXWORD_SHIFT_VALUE_P(o, SYMBOL)
|
---|
| 124 | #endif
|
---|
[270] | 125 | #define mrb_undef_p(o) ((o).w == MRB_Qundef)
|
---|
| 126 | #define mrb_nil_p(o) ((o).w == MRB_Qnil)
|
---|
[439] | 127 | #define mrb_false_p(o) ((o).w == MRB_Qfalse)
|
---|
| 128 | #define mrb_true_p(o) ((o).w == MRB_Qtrue)
|
---|
| 129 | #ifndef MRB_WITHOUT_FLOAT
|
---|
| 130 | #define mrb_float_p(o) BOXWORD_OBJ_TYPE_P(o, FLOAT)
|
---|
| 131 | #endif
|
---|
| 132 | #define mrb_array_p(o) BOXWORD_OBJ_TYPE_P(o, ARRAY)
|
---|
| 133 | #define mrb_string_p(o) BOXWORD_OBJ_TYPE_P(o, STRING)
|
---|
| 134 | #define mrb_hash_p(o) BOXWORD_OBJ_TYPE_P(o, HASH)
|
---|
| 135 | #define mrb_cptr_p(o) BOXWORD_OBJ_TYPE_P(o, CPTR)
|
---|
| 136 | #define mrb_exception_p(o) BOXWORD_OBJ_TYPE_P(o, EXCEPTION)
|
---|
| 137 | #define mrb_free_p(o) BOXWORD_OBJ_TYPE_P(o, FREE)
|
---|
| 138 | #define mrb_object_p(o) BOXWORD_OBJ_TYPE_P(o, OBJECT)
|
---|
| 139 | #define mrb_class_p(o) BOXWORD_OBJ_TYPE_P(o, CLASS)
|
---|
| 140 | #define mrb_module_p(o) BOXWORD_OBJ_TYPE_P(o, MODULE)
|
---|
| 141 | #define mrb_iclass_p(o) BOXWORD_OBJ_TYPE_P(o, ICLASS)
|
---|
| 142 | #define mrb_sclass_p(o) BOXWORD_OBJ_TYPE_P(o, SCLASS)
|
---|
| 143 | #define mrb_proc_p(o) BOXWORD_OBJ_TYPE_P(o, PROC)
|
---|
| 144 | #define mrb_range_p(o) BOXWORD_OBJ_TYPE_P(o, RANGE)
|
---|
| 145 | #define mrb_file_p(o) BOXWORD_OBJ_TYPE_P(o, FILE)
|
---|
| 146 | #define mrb_env_p(o) BOXWORD_OBJ_TYPE_P(o, ENV)
|
---|
| 147 | #define mrb_data_p(o) BOXWORD_OBJ_TYPE_P(o, DATA)
|
---|
| 148 | #define mrb_fiber_p(o) BOXWORD_OBJ_TYPE_P(o, FIBER)
|
---|
| 149 | #define mrb_istruct_p(o) BOXWORD_OBJ_TYPE_P(o, ISTRUCT)
|
---|
| 150 | #define mrb_break_p(o) BOXWORD_OBJ_TYPE_P(o, BREAK)
|
---|
[270] | 151 |
|
---|
[439] | 152 | #ifndef MRB_WITHOUT_FLOAT
|
---|
| 153 | #define SET_FLOAT_VALUE(mrb,r,v) ((r) = mrb_word_boxing_float_value(mrb, v))
|
---|
| 154 | #endif
|
---|
| 155 | #define SET_CPTR_VALUE(mrb,r,v) ((r) = mrb_word_boxing_cptr_value(mrb, v))
|
---|
| 156 | #define SET_UNDEF_VALUE(r) ((r).w = MRB_Qundef)
|
---|
| 157 | #define SET_NIL_VALUE(r) ((r).w = MRB_Qnil)
|
---|
| 158 | #define SET_FALSE_VALUE(r) ((r).w = MRB_Qfalse)
|
---|
| 159 | #define SET_TRUE_VALUE(r) ((r).w = MRB_Qtrue)
|
---|
| 160 | #define SET_BOOL_VALUE(r,b) ((b) ? SET_TRUE_VALUE(r) : SET_FALSE_VALUE(r))
|
---|
| 161 | #define SET_INT_VALUE(r,n) BOXWORD_SET_SHIFT_VALUE(r, FIXNUM, n)
|
---|
| 162 | #ifdef MRB_64BIT
|
---|
| 163 | #define SET_SYM_VALUE(r,v) ((r).value.sym = v, (r).value.sym_flag = BOXWORD_SYMBOL_FLAG)
|
---|
| 164 | #else
|
---|
| 165 | #define SET_SYM_VALUE(r,n) BOXWORD_SET_SHIFT_VALUE(r, SYMBOL, n)
|
---|
| 166 | #endif
|
---|
| 167 | #define SET_OBJ_VALUE(r,v) ((r).value.p = v)
|
---|
[270] | 168 |
|
---|
[439] | 169 | MRB_INLINE enum mrb_vtype
|
---|
| 170 | mrb_type(mrb_value o)
|
---|
| 171 | {
|
---|
| 172 | return !mrb_bool(o) ? MRB_TT_FALSE :
|
---|
| 173 | mrb_true_p(o) ? MRB_TT_TRUE :
|
---|
| 174 | mrb_fixnum_p(o) ? MRB_TT_FIXNUM :
|
---|
| 175 | mrb_symbol_p(o) ? MRB_TT_SYMBOL :
|
---|
| 176 | mrb_undef_p(o) ? MRB_TT_UNDEF :
|
---|
| 177 | o.value.bp->tt;
|
---|
| 178 | }
|
---|
[270] | 179 |
|
---|
| 180 | #endif /* MRUBY_BOXING_WORD_H */
|
---|