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fixed macro argument substitution

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This commit is contained in:
bellard 2003-05-18 17:16:20 +00:00
parent 5908725ad5
commit 6cdf6f88d7
1 changed files with 12 additions and 10 deletions
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22
tcc.c
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@ -681,8 +681,8 @@ void vswap(void);
void vdup(void);
int get_reg(int rc);
static void macro_subst(TokenString *tok_str,
Sym **nested_list, const int *macro_str);
static void macro_subst(TokenString *tok_str, Sym **nested_list,
const int *macro_str, int can_read_stream);
int save_reg_forced(int r);
void gen_op(int op);
void force_charshort_cast(int t);
@ -3711,7 +3711,9 @@ static int *macro_arg_subst(Sym **nested_list, int *macro_str, Sym *args)
}
}
} else {
macro_subst(&str, nested_list, st);
/* NOTE: the stream cannot be read when macro
substituing an argument */
macro_subst(&str, nested_list, st, 0);
}
} else {
tok_str_add(&str, t);
@ -3736,7 +3738,7 @@ static char const ab_month_name[12][4] =
macros we got inside to avoid recursing. Return non zero if no
substitution needs to be done */
static int macro_subst_tok(TokenString *tok_str,
Sym **nested_list, Sym *s)
Sym **nested_list, Sym *s, int can_read_stream)
{
Sym *args, *sa, *sa1;
int mstr_allocated, parlevel, *mstr, t;
@ -3785,7 +3787,7 @@ static int macro_subst_tok(TokenString *tok_str,
next token. XXX: find better solution */
if (macro_ptr) {
t = *macro_ptr;
if (t == 0) {
if (t == 0 && can_read_stream) {
/* end of macro stream: we must look at the token
after in the file */
macro_ptr = NULL;
@ -3862,7 +3864,7 @@ static int macro_subst_tok(TokenString *tok_str,
mstr_allocated = 1;
}
sym_push2(nested_list, s->v, 0, 0);
macro_subst(tok_str, nested_list, mstr);
macro_subst(tok_str, nested_list, mstr, 1);
/* pop nested defined symbol */
sa1 = *nested_list;
*nested_list = sa1->prev;
@ -4009,8 +4011,8 @@ static inline int *macro_twosharps(const int *macro_str)
/* do macro substitution of macro_str and add result to
(tok_str,tok_len). 'nested_list' is the list of all macros we got
inside to avoid recursing. */
static void macro_subst(TokenString *tok_str,
Sym **nested_list, const int *macro_str)
static void macro_subst(TokenString *tok_str, Sym **nested_list,
const int *macro_str, int can_read_stream)
{
Sym *s;
int *saved_macro_ptr, *macro_str1;
@ -4039,7 +4041,7 @@ static void macro_subst(TokenString *tok_str,
saved_macro_ptr = macro_ptr;
macro_ptr = (int *)ptr;
tok = t;
ret = macro_subst_tok(tok_str, nested_list, s);
ret = macro_subst_tok(tok_str, nested_list, s, can_read_stream);
ptr = (int *)macro_ptr;
macro_ptr = saved_macro_ptr;
if (ret != 0)
@ -4071,7 +4073,7 @@ static void next(void)
/* we have a macro: we try to substitute */
tok_str_new(&str);
nested_list = NULL;
if (macro_subst_tok(&str, &nested_list, s) == 0) {
if (macro_subst_tok(&str, &nested_list, s, 1) == 0) {
/* substitution done, NOTE: maybe empty */
tok_str_add(&str, 0);
macro_ptr = str.str;