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some binop expression stuff
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hyung-hwan 2024-09-01 02:20:22 +09:00
parent 150e7386f8
commit 88e8471014
1 changed files with 20 additions and 6 deletions
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26
lib/read.c
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@ -939,10 +939,11 @@ static HCL_INLINE int can_binop_list (hcl_t* hcl)
/* repeated delimiters - e.g (a ++ ++ ...) (a : := ... ) */ /* repeated delimiters - e.g (a ++ ++ ...) (a : := ... ) */
if (rstl->flagv & (COMMAED | COLONED | COLONEQED | BINOPED)) return 0; if (rstl->flagv & (COMMAED | COLONED | COLONEQED | BINOPED)) return 0;
#if 0
TODO: multi binop support
if (cc == HCL_CONCODE_BLIST) if (cc == HCL_CONCODE_BLIST)
{ {
hcl_cnode_t* wrap;
hcl_oocs_t fake_tok, * fake_tok_ptr = HCL_NULL;
/* revised to BLIST in earlier call. /* revised to BLIST in earlier call.
* three elements before this binop. * three elements before this binop.
* xxx (1 + 2 + 3) * xxx (1 + 2 + 3)
@ -956,18 +957,30 @@ TODO: multi binop support
/* ugly to manipulate the current list */ /* ugly to manipulate the current list */
HCL_ASSERT (hcl, rstl->count == 3); HCL_ASSERT (hcl, rstl->count == 3);
hcl_makecnodecons(hcl, 0, loc,
fake_tok.ptr = vocas[VOCA_BLIST].str;
fake_tok.len = vocas[VOCA_BLIST].len;
fake_tok_ptr = &fake_tok;
hcl_logbfmt(hcl, HCL_LOG_STDERR, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXxx\n");
if (rstl->head) hcl_dumpcnode(hcl, rstl->head, 1);
else hcl_logbfmt(hcl, HCL_LOG_STDERR, "rstl->head is null\n");
if (rstl->tail) hcl_dumpcnode(hcl, rstl->tail, 1);
else hcl_logbfmt(hcl, HCL_LOG_STDERR, "rstl->tail is null\n");
HCL_ASSERT (hcl, HCL_CNODE_IS_TYPED(rstl->head, HCL_CNODE_CONS));
wrap = hcl_makecnodecons(hcl, 0, HCL_CNODE_GET_LOC(rstl->head), fake_tok_ptr, rstl->head, rstl->head->u.cons.cdr);
if (HCL_UNLIKELY(!wrap)) return -1;
rstl->head = wrap;
rstl->tail = wrap;
rstl->count = 1; /* force adjust it to 1 */ rstl->count = 1; /* force adjust it to 1 */
} }
else else
{ {
#endif
if (rstl->count >= 2) return 0; /* allowed after the first item only */ if (rstl->count >= 2) return 0; /* allowed after the first item only */
if (cc != HCL_CONCODE_XLIST) return 0; if (cc != HCL_CONCODE_XLIST) return 0;
#if 0
} }
#endif
LIST_FLAG_SET_CONCODE(rstl->flagv, HCL_CONCODE_BLIST); LIST_FLAG_SET_CONCODE(rstl->flagv, HCL_CONCODE_BLIST);
rstl->flagv |= BINOPED; rstl->flagv |= BINOPED;
@ -1587,6 +1600,7 @@ static int feed_process_token (hcl_t* hcl)
hcl_setsynerrbfmt (hcl, HCL_SYNERR_BANNED, TOKEN_LOC(hcl), TOKEN_NAME(hcl), "prohibited binary operator"); hcl_setsynerrbfmt (hcl, HCL_SYNERR_BANNED, TOKEN_LOC(hcl), TOKEN_NAME(hcl), "prohibited binary operator");
goto oops; goto oops;
} }
else if (can <= -1) goto oops;
if (can == 1) goto ident; /* if binop is the first in the list */ if (can == 1) goto ident; /* if binop is the first in the list */
HCL_ASSERT (hcl, can == 2); HCL_ASSERT (hcl, can == 2);