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fixing up dtors, parsing parameters of macros

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Wolfgang (Blub) Bumiller 2012-11-16 20:15:04 +01:00
parent 34646cfca7
commit d4fe6ed82d
1 changed files with 63 additions and 1 deletions
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64
ftepp.c
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@ -87,6 +87,21 @@ static void ftepp_error(ftepp_t *ftepp, const char *fmt, ...)
va_end(ap);
}
pptoken *pptoken_make(ftepp_t *ftepp)
{
pptoken *token = (pptoken*)mem_a(sizeof(pptoken));
token->token = ftepp->token;
token->value = util_strdup(ftepp_tokval(ftepp));
memcpy(&token->constval, &ftepp->lex->tok.constval, sizeof(token->constval));
return token;
}
void pptoken_delete(pptoken *self)
{
mem_d(self->value);
mem_d(self);
}
ppmacro *ppmacro_new(lex_ctx ctx, const char *name)
{
ppmacro *macro = (ppmacro*)mem_a(sizeof(ppmacro));
@ -97,7 +112,12 @@ ppmacro *ppmacro_new(lex_ctx ctx, const char *name)
void ppmacro_delete(ppmacro *self)
{
size_t i;
for (i = 0; i < vec_size(self->params); ++i)
mem_d(self->params[i]);
vec_free(self->params);
for (i = 0; i < vec_size(self->output); ++i)
pptoken_delete(self->output[i]);
vec_free(self->output);
mem_d(self->name);
mem_d(self);
@ -115,8 +135,12 @@ ftepp_t* ftepp_init()
void ftepp_delete(ftepp_t *self)
{
size_t i;
for (i = 0; i < vec_size(self->macros); ++i)
ppmacro_delete(self->macros[i]);
vec_free(self->macros);
vec_free(self->conditions);
lex_close(self->lex);
mem_d(self);
}
@ -151,6 +175,35 @@ static bool ftepp_skipspace(ftepp_t *ftepp)
/**
* The huge macro parsing code...
*/
static bool ftepp_define_params(ftepp_t *ftepp, ppmacro *macro)
{
do {
ftepp_next(ftepp);
if (!ftepp_skipspace(ftepp))
return false;
switch (ftepp->token) {
case TOKEN_IDENT:
case TOKEN_TYPENAME:
case TOKEN_KEYWORD:
break;
default:
ftepp_error(ftepp, "unexpected token in parameter list");
return false;
}
vec_push(macro->params, util_strdup(ftepp_tokval(ftepp)));
ftepp_next(ftepp);
if (!ftepp_skipspace(ftepp))
return false;
} while (ftepp->token == ',');
if (ftepp->token != ')') {
ftepp_error(ftepp, "expected closing paren after macro parameter list");
return false;
}
ftepp_next(ftepp);
/* skipspace happens in ftepp_define */
return true;
}
static bool ftepp_define(ftepp_t *ftepp)
{
ppmacro *macro;
@ -170,8 +223,16 @@ static bool ftepp_define(ftepp_t *ftepp)
}
(void)ftepp_next(ftepp);
if (ftepp->token == '(') {
macro->has_params = true;
if (!ftepp_define_params(ftepp, macro))
return false;
}
if (!ftepp_skipspace(ftepp))
return false;
if (ftepp->token != TOKEN_EOL) {
ftepp_error(ftepp, "stray tokens after macro");
return false;
@ -553,8 +614,9 @@ static bool ftepp_preprocess(ftepp_t *ftepp)
}
} while (!ftepp->errors && ftepp->token < TOKEN_EOF);
newline = ftepp->token == TOKEN_EOF;
ftepp_delete(ftepp);
return (ftepp->token == TOKEN_EOF);
return newline;
}
bool ftepp_preprocess_file(const char *filename)