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cleanup: stop abuse of sym->c for #define tokenstreams

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This commit is contained in:
grischka 2009-07-06 21:16:41 +02:00 committed by unknown
parent d0b432ab38
commit bed17847bd
3 changed files with 17 additions and 9 deletions
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3
libtcc.c
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@ -1059,6 +1059,9 @@ static Sym *sym_push2(Sym **ps, int v, int t, long c)
s = sym_malloc();
s->v = v;
s->type.t = t;
#ifdef _WIN64
s->d = NULL;
#endif
s->c = c;
s->next = NULL;
/* add in stack */

5
tcc.h
View File

@ -198,7 +198,10 @@ typedef struct SValue {
typedef struct Sym {
int v; /* symbol token */
long r; /* associated register */
long c; /* associated number */
union {
long c; /* associated number */
int *d; /* define token stream */
};
CType type; /* associated type */
struct Sym *next; /* next related symbol */
struct Sym *prev; /* prev symbol in stack */

18
tccpp.c
View File

@ -860,7 +860,8 @@ static inline void define_push(int v, int macro_type, int *str, Sym *first_arg)
{
Sym *s;
s = sym_push2(&define_stack, v, macro_type, (long)str);
s = sym_push2(&define_stack, v, macro_type, 0);
s->d = str;
s->next = first_arg;
table_ident[v - TOK_IDENT]->sym_define = s;
}
@ -893,8 +894,8 @@ static void free_defines(Sym *b)
while (top != b) {
top1 = top->prev;
/* do not free args or predefined defines */
if (top->c)
tok_str_free((int *)top->c);
if (top->d)
tok_str_free(top->d);
v = top->v;
if (v >= TOK_IDENT && v < tok_ident)
table_ident[v - TOK_IDENT]->sym_define = NULL;
@ -2364,7 +2365,7 @@ static int *macro_arg_subst(Sym **nested_list, int *macro_str, Sym *args)
s = sym_find2(args, t);
if (s) {
cstr_new(&cstr);
st = (int *)s->c;
st = s->d;
spc = 0;
while (*st) {
TOK_GET(t, st, cval);
@ -2386,7 +2387,7 @@ static int *macro_arg_subst(Sym **nested_list, int *macro_str, Sym *args)
} else if (t >= TOK_IDENT) {
s = sym_find2(args, t);
if (s) {
st = (int *)s->c;
st = s->d;
/* if '##' is present before or after, no arg substitution */
if (*macro_str == TOK_TWOSHARPS || last_tok == TOK_TWOSHARPS) {
/* special case for var arg macros : ## eats the
@ -2487,7 +2488,7 @@ static int macro_subst_tok(TokenString *tok_str,
tok_str_add2(tok_str, t1, &cval);
cstr_free(&cstr);
} else {
mstr = (int *)s->c;
mstr = s->d;
mstr_allocated = 0;
if (s->type.t == MACRO_FUNC) {
/* NOTE: we do not use next_nomacro to avoid eating the
@ -2552,7 +2553,8 @@ static int macro_subst_tok(TokenString *tok_str,
}
str.len -= spc;
tok_str_add(&str, 0);
sym_push2(&args, sa->v & ~SYM_FIELD, sa->type.t, (long)str.str);
sa1 = sym_push2(&args, sa->v & ~SYM_FIELD, sa->type.t, 0);
sa1->d = str.str;
sa = sa->next;
if (tok == ')') {
/* special case for gcc var args: add an empty
@ -2577,7 +2579,7 @@ static int macro_subst_tok(TokenString *tok_str,
sa = args;
while (sa) {
sa1 = sa->prev;
tok_str_free((int *)sa->c);
tok_str_free(sa->d);
sym_free(sa);
sa = sa1;
}