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simplified variable adding routines
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hyung-hwan 2024-10-19 22:00:53 +09:00
parent 001472fe4f
commit 41b36ab170
2 changed files with 35 additions and 52 deletions
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85
lib/comp.c
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@ -199,16 +199,32 @@ static int __find_word_in_string (const hcl_oocs_t* haystack, const hcl_oocs_t*
return -1; /* not found */
}
static int add_temporary_variable (hcl_t* hcl, const hcl_oocs_t* name, hcl_oow_t dup_check_start)
static int add_temporary_variable (hcl_t* hcl, const hcl_cnode_t* var, hcl_oow_t dup_check_start, const hcl_bch_t* desc, const hcl_oocs_t* tgt)
{
hcl_oocs_t s;
hcl_oocs_t* name;
int x;
name = HCL_CNODE_GET_TOK(var);
s.ptr = hcl->c->tv.s.ptr + dup_check_start;
s.len = hcl->c->tv.s.len - dup_check_start;
if (__find_word_in_string(&s, name, 0, HCL_NULL) >= 0)
{
hcl_seterrnum (hcl, HCL_EEXIST);
if (tgt)
{
hcl_setsynerrbfmt (
hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(var), HCL_NULL,
"duplicate %hs name '%.*js' for '%.*js'",
desc, name->len, name->ptr, tgt->len, tgt->ptr);
}
else
{
hcl_setsynerrbfmt (
hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(var), HCL_NULL,
"duplicate %hs name '%.*js'",
desc, name->len, name->ptr);
}
return -1;
}
x = hcl_copy_string_to(hcl, name, &hcl->c->tv.s, &hcl->c->tv.capa, 1, ' ');
@ -271,14 +287,18 @@ static void fini_class_level_variable_buffer (hcl_t* hcl, hcl_oocsc_t* dst)
}
}
static int add_class_level_variable (hcl_t* hcl, hcl_oocsc_t* dst, const hcl_oocs_t* name)
static int add_class_level_variable (hcl_t* hcl, hcl_oocsc_t* dst, const hcl_cnode_t* var, const hcl_bch_t* desc)
{
/* it downcasts hcl_oocsc_t* to hcl_oocs_t*. take extra care to keep their type defintion
* compatible for downcasting in hcl-cmn.h */
hcl_oocs_t* name;
name = HCL_CNODE_GET_TOK(var);
if (__find_word_in_string((hcl_oocs_t*)dst, name, 0, HCL_NULL) >= 0)
{
hcl_seterrnum (hcl, HCL_EEXIST);
hcl_setsynerrbfmt (
hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(var), HCL_NULL,
"duplicate %hs variable name '%.*js'", desc, name->len, name->ptr);
return -1;
}
return hcl_copy_string_to(hcl, name, (hcl_oocs_t*)dst, &dst->capa, 1, ' ');
@ -1428,7 +1448,7 @@ static int collect_vardcl_for_class (hcl_t* hcl, hcl_cnode_t* obj, hcl_cnode_t**
hcl_oow_t tv_wcount_saved, tv_slen_saved;
hcl_cnode_t* dcl, * dcl_saved;
int enclosed = 0;
static const hcl_bch_t* desc[] = { "instance", "class" };
static const hcl_bch_t* desc[] = { "instance variable", "class variable" };
HCL_MEMSET (vardcl, 0, HCL_SIZEOF(*vardcl));
tv_wcount_saved = hcl->c->tv.wcount;
@ -1468,15 +1488,8 @@ static int collect_vardcl_for_class (hcl_t* hcl, hcl_cnode_t* obj, hcl_cnode_t**
if (!HCL_CNODE_IS_SYMBOL(var) || HCL_CNODE_IS_SYMBOL_BINOP(var)) goto synerr_varname;
checkpoint = hcl->c->tv.s.len;
n = add_temporary_variable(hcl, HCL_CNODE_GET_TOK(var), tv_slen_saved);
if (n <= -1)
{
if (hcl->errnum == HCL_EEXIST)
{
hcl_setsynerrbfmt (hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(var), HCL_CNODE_GET_TOK(var), "duplicate %hs variable", desc[enclosed]);
}
return -1;
}
n = add_temporary_variable(hcl, var, tv_slen_saved, desc[enclosed], HCL_NULL);
if (n <= -1) return -1;
if (enclosed)
{
@ -1519,7 +1532,7 @@ static int collect_vardcl_for_class (hcl_t* hcl, hcl_cnode_t* obj, hcl_cnode_t**
if (!HCL_CNODE_IS_CONS(dcl))
{
hcl_setsynerrbfmt (hcl, HCL_SYNERR_DOTBANNED, HCL_CNODE_GET_LOC(dcl), HCL_CNODE_GET_TOK(dcl), "redundant cdr in %hs variable declaration", desc[enclosed]);
hcl_setsynerrbfmt (hcl, HCL_SYNERR_DOTBANNED, HCL_CNODE_GET_LOC(dcl), HCL_CNODE_GET_TOK(dcl), "redundant cdr in %hs declaration", desc[enclosed]);
return -1;
}
}
@ -1559,14 +1572,7 @@ static int collect_vardcl (hcl_t* hcl, hcl_cnode_t* obj, hcl_cnode_t** nextobj,
HCL_ASSERT (hcl, HCL_CNODE_IS_SYMBOL(var));
#endif
if (add_temporary_variable(hcl, HCL_CNODE_GET_TOK(var), tv_dup_check_start) <= -1)
{
if (hcl->errnum == HCL_EEXIST)
{
hcl_setsynerrbfmt (hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(var), HCL_CNODE_GET_TOK(var), "duplicate %hs variable", desc);
}
return -1;
}
if (add_temporary_variable(hcl, var, tv_dup_check_start, desc, HCL_NULL) <= -1) return -1;
ndcls++;
dcl = HCL_CNODE_CONS_CDR(dcl);
@ -3501,19 +3507,7 @@ static int compile_fun (hcl_t* hcl, hcl_cnode_t* src)
return -1;
}
if (add_temporary_variable(hcl, HCL_CNODE_GET_TOK(arg), tv_dup_start) <= -1)
{
if (hcl->errnum == HCL_EEXIST)
{
/* in 'fun x (y :: z z) {}', the second 'z' is duplicate */
hcl_setsynerrbfmt (
hcl, HCL_SYNERR_VARNAMEDUP, HCL_CNODE_GET_LOC(arg), HCL_NULL,
"duplicate return variable '%.*js' for '%.*js'",
HCL_CNODE_GET_TOKLEN(arg), HCL_CNODE_GET_TOKPTR(arg),
HCL_CNODE_GET_TOKLEN(cmd), HCL_CNODE_GET_TOKPTR(cmd));
}
return -1;
}
if (add_temporary_variable(hcl, arg, tv_dup_start, "return variable", HCL_CNODE_GET_TOK(cmd)) <= -1) return -1;
nrvars++;
}
else if (va)
@ -3555,18 +3549,7 @@ static int compile_fun (hcl_t* hcl, hcl_cnode_t* src)
}
else
{
if (add_temporary_variable(hcl, HCL_CNODE_GET_TOK(arg), tv_dup_start) <= -1)
{
if (hcl->errnum == HCL_EEXIST)
{
hcl_setsynerrbfmt (
hcl, HCL_SYNERR_ARGNAMEDUP, HCL_CNODE_GET_LOC(arg), HCL_NULL,
"duplicate argument name '%.*js' for '%.*js'",
HCL_CNODE_GET_TOKLEN(arg), HCL_CNODE_GET_TOKPTR(arg),
HCL_CNODE_GET_TOKLEN(cmd), HCL_CNODE_GET_TOKPTR(cmd));
}
return -1;
}
if (add_temporary_variable(hcl, arg, tv_dup_start, "argument", HCL_CNODE_GET_TOK(cmd)) <= -1) return -1;
nargs++;
}
}
@ -3823,12 +3806,12 @@ static int compile_var (hcl_t* hcl, hcl_cnode_t* src)
{
if (var_type == VAR_INST)
{
if (add_class_level_variable(hcl, &cbi->ivars, HCL_CNODE_GET_TOK(tmp)) <= -1) return -1;
if (add_class_level_variable(hcl, &cbi->ivars, tmp, "instance") <= -1) return -1;
cbi->nivars++;
}
else
{
if (add_class_level_variable(hcl, &cbi->cvars, HCL_CNODE_GET_TOK(tmp)) <= -1) return -1;
if (add_class_level_variable(hcl, &cbi->cvars, tmp, "class") <= -1) return -1;
cbi->ncvars++;
}
@ -4325,7 +4308,7 @@ static HCL_INLINE int compile_catch (hcl_t* hcl)
vi.type = VAR_INDEXED;
vi.ctx_offset = 0;
vi.index_in_ctx = hcl->c->tv.wcount - par_tmprcnt;
if (add_temporary_variable(hcl, HCL_CNODE_GET_TOK(exarg), hcl->c->tv.s.len) <= -1) return -1;
if (add_temporary_variable(hcl, exarg, hcl->c->tv.s.len, "exception variable", HCL_NULL) <= -1) return -1;
fbi = &hcl->c->funblk.info[hcl->c->funblk.depth];
HCL_ASSERT (hcl, fbi->tmprlen == hcl->c->tv.s.len - HCL_CNODE_GET_TOKLEN(exarg) - 1);

2
t/var-5004.err
View File

@ -32,7 +32,7 @@ fun x (x :: self.y) { ##ERROR: syntax error - invalid return variable 'self.y' f
---
fun x (x :: z z) { ##ERROR: syntax error - duplicate return variable 'z' for 'fun'
fun x (x :: z z) { ##ERROR: syntax error - duplicate return variable name 'z' for 'fun'
}
---