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enhanced the 'in' operator evaluation to support an array

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This commit is contained in:
hyung-hwan 2020-05-03 05:45:31 +00:00
parent 11b6e0ce97
commit 210aa19820
4 changed files with 100 additions and 43 deletions
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3
hawk/lib/err.c
View File

@ -139,11 +139,10 @@ const hawk_ooch_t* hawk_dfl_errstr (hawk_errnum_t errnum)
HAWK_T("non-function value"),
HAWK_T("not deletable"),
HAWK_T("value not a map"),
HAWK_T("right-hand side of the 'in' operator not a map"),
HAWK_T("right-hand side of the 'in' operator not a map nor nil"),
HAWK_T("value not an array"),
HAWK_T("value not accessible with index"),
HAWK_T("value not referenceable"),
HAWK_T("wrong operand in right-hand side of 'in'"), /* EINROP */
HAWK_T("cannot return a nonscalar value"), /* ENONSCARET */
HAWK_T("cannot assign a nonscalar value to a positional"), /* ENONSCATOPOS */
HAWK_T("cannot assign a nonscalar value to an indexed variable"),/* ENONSCATOIDX */

3
hawk/lib/hawk-cmn.h
View File

@ -974,11 +974,10 @@ enum hawk_errnum_t
HAWK_ENOTFUN, /**< non-function value */
HAWK_ENOTDEL, /**< not deletable */
HAWK_ENOTMAP, /**< value not a map */
HAWK_ENOTMAPIN, /**< right-hand side of 'in' not a map */
HAWK_ENOTMAPNILIN, /**< right-hand side of 'in' not a map nor nil */
HAWK_ENOTARR, /**< value not an array */
HAWK_ENOTIDXACC, /**< value not accessible with index */
HAWK_ENOTREF, /**< value not referenceable */
HAWK_EINROP, /**< wrong operand in right-hand side of 'in'*/
HAWK_ENONSCARET, /**< nonscalar value cannot be returned */
HAWK_ENONSCATOPOS, /**< nonscalar value cannot be assigned to a positional */
HAWK_ENONSCATOIDX, /**< nonscalar value cannot be assigned to an indexed variable */

133
hawk/lib/run.c
View File

@ -193,7 +193,14 @@ static hawk_val_t* eval_printf (hawk_rtx_t* rtx, hawk_nde_t* nde);
static int read_record (hawk_rtx_t* rtx);
static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t* buf, hawk_oow_t* len, hawk_nde_t** remidx);
struct idxnde_to_str_idxint_t
{
int ok;
hawk_int_t v;
};
typedef struct idxnde_to_str_idxint_t idxnde_to_str_idxint_t;
static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t* buf, hawk_oow_t* len, hawk_nde_t** remidx, idxnde_to_str_idxint_t* firstidxint);
static hawk_ooi_t idxnde_to_int (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_nde_t** remidx);
typedef hawk_val_t* (*binop_func_t) (hawk_rtx_t* rtx, hawk_val_t* left, hawk_val_t* right);
@ -2663,7 +2670,7 @@ static int run_forin (hawk_rtx_t* rtx, hawk_nde_forin_t* nde)
}
default:
hawk_rtx_seterrnum (rtx, &test->right->loc, HAWK_ENOTMAPIN);
hawk_rtx_seterrnum (rtx, &test->right->loc, HAWK_EINROP);
ret = -1;
goto done1;
}
@ -3013,7 +3020,7 @@ static HAWK_INLINE int delete_indexed (hawk_rtx_t* rtx, hawk_val_t* vv, hawk_nde
if (vtype == HAWK_VAL_MAP)
{
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)vv)->map;
}
@ -3049,7 +3056,7 @@ static HAWK_INLINE int delete_indexed (hawk_rtx_t* rtx, hawk_val_t* vv, hawk_nde
val_map:
if (str && str != idxbuf) hawk_rtx_freemem (rtx, str);
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)vv)->map;
break;
@ -4014,7 +4021,7 @@ static hawk_val_t* do_assignment_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var,
if (vtype == HAWK_VAL_MAP)
{
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)vv)->map;
}
@ -4049,7 +4056,7 @@ static hawk_val_t* do_assignment_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var,
val_map:
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)vv)->map;
break;
@ -4409,12 +4416,15 @@ static hawk_val_t* eval_binop_land (hawk_rtx_t* rtx, hawk_nde_t* left, hawk_nde_
static hawk_val_t* eval_binop_in (hawk_rtx_t* rtx, hawk_nde_t* left, hawk_nde_t* right)
{
hawk_val_t* rv;
hawk_val_type_t rvtype;
hawk_val_t* res;
hawk_val_t* ropv;
hawk_val_type_t ropvtype;
hawk_ooch_t* str;
hawk_oow_t len;
hawk_ooch_t idxbuf[IDXBUFSIZE];
hawk_nde_t* remidx;
idxnde_to_str_idxint_t idxint;
hawk_errnum_t errnum;
#if defined(HAWK_ENABLE_GC)
if (right->type < HAWK_NDE_NAMED || right->type > HAWK_NDE_ARGIDX)
@ -4430,47 +4440,78 @@ static hawk_val_t* eval_binop_in (hawk_rtx_t* rtx, hawk_nde_t* left, hawk_nde_t*
/* evaluate the left-hand side of the operator */
len = HAWK_COUNTOF(idxbuf);
str = (left->type == HAWK_NDE_GRP)?
idxnde_to_str(rtx, ((hawk_nde_grp_t*)left)->body, idxbuf, &len, &remidx):
idxnde_to_str(rtx, left, idxbuf, &len, &remidx);
str = (left->type == HAWK_NDE_GRP)? /* it is inefficinet to call idxnde_to_str() for an array. but i don't know if the right hand side is a map or an array yet */
idxnde_to_str(rtx, ((hawk_nde_grp_t*)left)->body, idxbuf, &len, &remidx, &idxint):
idxnde_to_str(rtx, left, idxbuf, &len, &remidx, &idxint);
if (HAWK_UNLIKELY(!str)) return HAWK_NULL;
/* There is no way to express a true multi-dimensional indices for the 'in' operator.
* So remidx must be NULL here.
* a[10][20] <--- no way to express the test of 20 under 10 in a.
* You may use multi-level test conjoined with a logical and operator in such a case.
* ((10 in a) && (20 in a[10]))
*
* '(10, 20) in a' is to test for a[10,20] if 'a' is a map.
*/
HAWK_ASSERT (remidx == HAWK_NULL);
/* evaluate the right-hand side of the operator */
HAWK_ASSERT (right->next == HAWK_NULL);
rv = eval_expression(rtx, right);
if (HAWK_UNLIKELY(!rv))
ropv = eval_expression(rtx, right);
if (HAWK_UNLIKELY(!ropv))
{
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
return HAWK_NULL;
}
hawk_rtx_refupval (rtx, rv);
hawk_rtx_refupval (rtx, ropv);
rvtype = HAWK_RTX_GETVALTYPE(rtx, rv);
if (rvtype == HAWK_VAL_NIL)
ropvtype = HAWK_RTX_GETVALTYPE(rtx, ropv);
switch (ropvtype)
{
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
hawk_rtx_refdownval (rtx, rv);
return HAWK_VAL_ZERO;
}
else if (rvtype == HAWK_VAL_MAP)
case HAWK_VAL_NIL:
res = HAWK_VAL_ZERO;
break;
case HAWK_VAL_MAP:
{
hawk_val_t* res;
hawk_map_t* map;
map = ((hawk_val_map_t*)rv)->map;
map = ((hawk_val_map_t*)ropv)->map;
res = (hawk_map_search(map, str, len) == HAWK_NULL)? HAWK_VAL_ZERO: HAWK_VAL_ONE;
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
hawk_rtx_refdownval (rtx, rv);
return res;
break;
}
/* need a map */
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
hawk_rtx_refdownval (rtx, rv);
case HAWK_VAL_ARR:
{
hawk_arr_t* arr;
if (!idxint.ok)
{
hawk_rtx_seterrnum (rtx, &left->loc, HAWK_EARRIDXMULTI);
goto oops;
}
arr = ((hawk_val_arr_t*)ropv)->arr;
res = (idxint.v < 0 || idxint.v > HAWK_ARR_SIZE(arr) || !HAWK_ARR_SLOT(arr, idxint.v))? HAWK_VAL_ZERO: HAWK_VAL_ONE;
break;
}
default:
hawk_rtx_seterrnum (rtx, &right->loc, HAWK_EINROP);
goto oops;
}
done:
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
hawk_rtx_refdownval (rtx, ropv);
return res;
oops:
if (str != idxbuf) hawk_rtx_freemem (rtx, str);
hawk_rtx_refdownval (rtx, ropv);
hawk_rtx_seterrnum (rtx, &right->loc, HAWK_ENOTMAPNILIN);
return HAWK_NULL;
}
@ -6756,7 +6797,7 @@ static hawk_val_t** get_reference_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var)
case HAWK_VAL_MAP:
val_map_init:
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)v)->map;
break;
@ -6796,7 +6837,7 @@ static hawk_val_t** get_reference_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var)
val_map:
if (str && str != idxbuf) hawk_rtx_freemem (rtx, str);
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)v)->map;
break;
@ -6993,7 +7034,7 @@ static hawk_val_t* eval_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var)
case HAWK_VAL_MAP:
init_val_map:
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, var->idx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)v)->map;
break;
@ -7033,7 +7074,7 @@ static hawk_val_t* eval_indexed (hawk_rtx_t* rtx, hawk_nde_var_t* var)
val_map:
if (str && str != idxbuf) hawk_rtx_freemem (rtx, str);
len = HAWK_COUNTOF(idxbuf);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx);
str = idxnde_to_str(rtx, remidx, idxbuf, &len, &remidx, HAWK_NULL);
if (HAWK_UNLIKELY(!str)) goto oops;
map = ((hawk_val_map_t*)v)->map;
break;
@ -7428,10 +7469,11 @@ read_again:
return 1;
}
static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t* buf, hawk_oow_t* len, hawk_nde_t** remidx)
static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t* buf, hawk_oow_t* len, hawk_nde_t** remidx, idxnde_to_str_idxint_t* firstidxint)
{
hawk_ooch_t* str;
hawk_val_t* idx;
hawk_int_t idxint;
HAWK_ASSERT (nde != HAWK_NULL);
@ -7445,6 +7487,16 @@ static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t
hawk_rtx_refupval (rtx, idx);
if (firstidxint)
{
if (hawk_rtx_valtoint(rtx, idx, &idxint) <= -1)
{
hawk_rtx_refdownval (rtx, idx);
ADJERR_LOC (rtx, &nde->loc);
return HAWK_NULL;
}
}
str = HAWK_NULL;
if (buf)
@ -7480,10 +7532,15 @@ static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t
hawk_rtx_refdownval (rtx, idx);
*remidx = HAWK_NULL;
if (firstidxint)
{
firstidxint->ok = 1;
firstidxint->v = idxint;
}
}
else
{
/* multidimensional index */
/* multidimensional index - e.g. [1,2,3] */
hawk_ooecs_t idxstr;
hawk_oocs_t tmp;
hawk_rtx_valtostr_out_t out;
@ -7542,6 +7599,8 @@ static hawk_ooch_t* idxnde_to_str (hawk_rtx_t* rtx, hawk_nde_t* nde, hawk_ooch_t
/* if nde is not HAWK_NULL, it should be of the HAWK_NDE_NULL type */
*remidx = nde? nde->next: nde;
if (firstidxint) firstidxint->ok = 0;
}
return str;