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enhanced the error handling in lib/read.c
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hyung-hwan 2024-01-08 00:38:42 +09:00
parent cf0162e140
commit f70a087525
2 changed files with 42 additions and 33 deletions
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43
lib/read.c
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@ -55,6 +55,8 @@ static struct voca_t
{ 4, { 's','e','l','f' } },
{ 5, { 's','u','p','e','r' } },
{ 3, { 's','e','t' } },
{ 3, { '(',' ',')' /* XLIST */ } },
{ 4, { '(',':',' ',')' /* MLIST */ } },
{ 3, { '(',':','=',')' } },
@ -91,6 +93,8 @@ enum voca_id_t
VOCA_KW_SELF,
VOCA_KW_SUPER,
VOCA_SYM_SET,
VOCA_XLIST,
VOCA_MLIST,
VOCA_ALIST,
@ -562,52 +566,57 @@ static HCL_INLINE hcl_cnode_t* leave_list (hcl_t* hcl, hcl_loc_t* list_loc, int*
{
HCL_ASSERT (hcl, HCL_CNODE_IS_CONS(head));
int x = 0;
/* HACK */
if (concode == HCL_CONCODE_ALIST)
{
/* tranform (var := val) to (set var val) */
hcl_cnode_t* sym, * newhead;
hcl_oocs_t fake_tok, * fake_tok_ptr = HCL_NULL;
/* TODO: this part is experimenttal... */
static hcl_ooch_t set[4] = { 's', 'e', 't', '\0' };
fake_tok.ptr = set;
fake_tok.len = 3;
fake_tok.ptr = vocas[VOCA_SYM_SET].str;
fake_tok.len = vocas[VOCA_SYM_SET].len;
fake_tok_ptr = &fake_tok;
/* THIS LOCATION IS ALSO WRONG */
sym = hcl_makecnodesymbol(hcl, 0, TOKEN_LOC(hcl), fake_tok_ptr);
/* TODO: check the number of argumetns in advance??? */
sym = hcl_makecnodesymbol(hcl, 0, &loc, fake_tok_ptr);
if (HCL_UNLIKELY(!sym))
{
/* TDOO: better error message */
const hcl_ooch_t* orgmsg = hcl_backuperrmsg(hcl);
hcl_seterrbfmt (hcl, hcl_geterrnum(hcl), "failed to create symbol cnode for := - %js", orgmsg);
if (head) hcl_freecnode (hcl, head);
return HCL_NULL;
}
newhead = hcl_makecnodecons(hcl, 0, &loc, fake_tok_ptr, sym, head);
if (HCL_UNLIKELY(!newhead))
{
const hcl_ooch_t* orgmsg = hcl_backuperrmsg(hcl);
hcl_seterrbfmt (hcl, hcl_geterrnum(hcl), "failed to create cons cnode for := - %js", orgmsg);
hcl_freecnode (hcl, sym);
if (head) hcl_freecnode (hcl, head);
return HCL_NULL;
}
head = newhead;
concode = HCL_CONCODE_XLIST;
x = 1;
concode = HCL_CONCODE_XLIST; /* switch back to XLIST */
}
/* END HACK */
HCL_CNODE_CONS_CONCODE(head) = concode;
if (x) hcl_dumpcnode(hcl, head, 1);
if (fv & AUTO_FORGED) HCL_CNODE_GET_FLAGS(head) |= HCL_CNODE_AUTO_FORGED;
return head;
}
else
{
/* the list is empty */
head = hcl_makecnodeelist(hcl, ((fv & AUTO_FORGED)? HCL_CNODE_AUTO_FORGED: 0), &loc, concode);
if (HCL_UNLIKELY(!head))
{
const hcl_ooch_t* orgmsg = hcl_backuperrmsg(hcl);
hcl_seterrbfmt (hcl, hcl_geterrnum(hcl), "failed to create empty list - %js", orgmsg);
}
}
/* the list is empty */
return hcl_makecnodeelist(hcl, ((fv & AUTO_FORGED)? HCL_CNODE_AUTO_FORGED: 0), &loc, concode);
return head;
}
static HCL_INLINE int can_dot_list (hcl_t* hcl)