/*
- * Copyright (C) 2012
+ * Copyright (C) 2012, 2013
* Wolfgang Bumiller
* Dale Weiler
*
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
+#include <time.h>
#include "gmqcc.h"
#include "lexer.h"
char **params;
/* yes we need an extra flag since `#define FOO x` is not the same as `#define FOO() x` */
bool has_params;
+ bool variadic;
pptoken **output;
} ppmacro;
char *includename;
} ftepp_t;
+/*
+ * Implement the predef subsystem now. We can do this safely with the
+ * help of lexer contexts.
+ */
+static uint32_t ftepp_predef_countval = 0;
+static uint32_t ftepp_predef_randval = 0;
+
+/* __DATE__ */
+char *ftepp_predef_date(lex_file *context) {
+ struct tm *itime;
+ time_t rtime;
+ char *value = mem_a(82);
+ /* 82 is enough for strftime but we also have " " in our string */
+
+ (void)context;
+
+ /* get time */
+ time (&rtime);
+ itime = localtime(&rtime);
+
+ strftime(value, 82, "\"%b %d %Y\"", itime);
+
+ return value;
+}
+
+/* __TIME__ */
+char *ftepp_predef_time(lex_file *context) {
+ struct tm *itime;
+ time_t rtime;
+ char *value = mem_a(82);
+ /* 82 is enough for strftime but we also have " " in our string */
+
+ (void)context;
+
+ /* get time */
+ time (&rtime);
+ itime = localtime(&rtime);
+
+ strftime(value, 82, "\"%X\"", itime);
+
+ return value;
+}
+
+/* __LINE__ */
+char *ftepp_predef_line(lex_file *context) {
+ char *value;
+ util_asprintf(&value, "%d", (int)context->line);
+ return value;
+}
+/* __FILE__ */
+char *ftepp_predef_file(lex_file *context) {
+ size_t length = strlen(context->name) + 3; /* two quotes and a terminator */
+ char *value = (char*)mem_a(length);
+ memset (value, 0, length);
+ sprintf(value, "\"%s\"", context->name);
+
+ return value;
+}
+/* __COUNTER_LAST__ */
+char *ftepp_predef_counterlast(lex_file *context) {
+ char *value;
+ util_asprintf(&value, "%u", ftepp_predef_countval);
+
+ (void)context;
+ return value;
+}
+/* __COUNTER__ */
+char *ftepp_predef_counter(lex_file *context) {
+ char *value;
+ ftepp_predef_countval ++;
+ util_asprintf(&value, "%u", ftepp_predef_countval);
+ (void)context;
+
+ return value;
+}
+/* __RANDOM__ */
+char *ftepp_predef_random(lex_file *context) {
+ char *value;
+ ftepp_predef_randval = (util_rand() % 0xFF) + 1;
+ util_asprintf(&value, "%u", ftepp_predef_randval);
+
+ (void)context;
+ return value;
+}
+/* __RANDOM_LAST__ */
+char *ftepp_predef_randomlast(lex_file *context) {
+ char *value;
+ util_asprintf(&value, "%u", ftepp_predef_randval);
+
+ (void)context;
+ return value;
+}
+
+const ftepp_predef_t ftepp_predefs[FTEPP_PREDEF_COUNT] = {
+ { "__LINE__", &ftepp_predef_line },
+ { "__FILE__", &ftepp_predef_file },
+ { "__COUNTER__", &ftepp_predef_counter },
+ { "__COUNTER_LAST__", &ftepp_predef_counterlast },
+ { "__RANDOM__", &ftepp_predef_random },
+ { "__RANDOM_LAST__", &ftepp_predef_randomlast },
+ { "__DATE__", &ftepp_predef_date },
+ { "__TIME__", &ftepp_predef_time }
+};
+
#define ftepp_tokval(f) ((f)->lex->tok.value)
#define ftepp_ctx(f) ((f)->lex->tok.ctx)
return ftepp;
}
+static void ftepp_flush_do(ftepp_t *self)
+{
+ vec_free(self->output_string);
+}
+
static void ftepp_delete(ftepp_t *self)
{
size_t i;
+ ftepp_flush_do(self);
if (self->itemname)
mem_d(self->itemname);
if (self->includename)
case TOKEN_IDENT:
case TOKEN_TYPENAME:
case TOKEN_KEYWORD:
+ vec_push(macro->params, util_strdup(ftepp_tokval(ftepp)));
+ break;
+ case TOKEN_DOTS:
+ macro->variadic = true;
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;
+ if (macro->variadic && ftepp->token != ')') {
+ ftepp_error(ftepp, "cannot have parameters after the variadic parameters");
+ return false;
+ }
} while (ftepp->token == ',');
if (ftepp->token != ')') {
ftepp_error(ftepp, "expected closing paren after macro parameter list");
{
pptoken *ptok;
while (ftepp->token != TOKEN_EOL && ftepp->token < TOKEN_EOF) {
+ if (macro->variadic && !strcmp(ftepp_tokval(ftepp), "__VA_ARGS__"))
+ ftepp->token = TOKEN_VA_ARGS;
ptok = pptoken_make(ftepp);
vec_push(macro->output, ptok);
ftepp_next(ftepp);
ftepp_out(ftepp, "\n#pragma pop(line)\n", false);
}
+static void ftepp_param_out(ftepp_t *ftepp, macroparam *param)
+{
+ size_t i;
+ pptoken *out;
+ for (i = 0; i < vec_size(param->tokens); ++i) {
+ out = param->tokens[i];
+ if (out->token == TOKEN_EOL)
+ ftepp_out(ftepp, "\n", false);
+ else
+ ftepp_out(ftepp, out->value, false);
+ }
+}
+
static bool ftepp_preprocess(ftepp_t *ftepp);
static bool ftepp_macro_expand(ftepp_t *ftepp, ppmacro *macro, macroparam *params)
{
- char *old_string = ftepp->output_string;
- lex_file *old_lexer = ftepp->lex;
- bool retval = true;
+ char *old_string = ftepp->output_string;
+ lex_file *old_lexer = ftepp->lex;
+ size_t vararg_start = vec_size(macro->params);
+ bool retval = true;
+ size_t varargs;
- size_t o, pi, pv;
+ size_t o, pi;
lex_file *inlex;
int nextok;
+ if (vararg_start < vec_size(params))
+ varargs = vec_size(params) - vararg_start;
+ else
+ varargs = 0;
+
/* really ... */
if (!vec_size(macro->output))
return true;
for (o = 0; o < vec_size(macro->output); ++o) {
pptoken *out = macro->output[o];
switch (out->token) {
+ case TOKEN_VA_ARGS:
+ if (!macro->variadic) {
+ ftepp_error(ftepp, "internal preprocessor error: TOKEN_VA_ARGS in non-variadic macro");
+ return false;
+ }
+ if (!varargs)
+ break;
+ pi = 0;
+ ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
+ for (++pi; pi < varargs; ++pi) {
+ ftepp_out(ftepp, ", ", false);
+ ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
+ }
+ break;
case TOKEN_IDENT:
case TOKEN_TYPENAME:
case TOKEN_KEYWORD:
if (!macro_params_find(macro, out->value, &pi)) {
ftepp_out(ftepp, out->value, false);
break;
- } else {
- for (pv = 0; pv < vec_size(params[pi].tokens); ++pv) {
- out = params[pi].tokens[pv];
- if (out->token == TOKEN_EOL)
- ftepp_out(ftepp, "\n", false);
- else
- ftepp_out(ftepp, out->value, false);
- }
- }
+ } else
+ ftepp_param_out(ftepp, ¶ms[pi]);
break;
case '#':
if (o + 1 < vec_size(macro->output)) {
goto cleanup;
}
ftepp->output_string = old_string;
+ inlex->line = ftepp->lex->line;
+ inlex->sline = ftepp->lex->sline;
ftepp->lex = inlex;
ftepp_recursion_header(ftepp);
if (!ftepp_preprocess(ftepp)) {
+ vec_free(ftepp->lex->open_string);
+ old_string = ftepp->output_string;
lex_close(ftepp->lex);
retval = false;
goto cleanup;
}
+ vec_free(ftepp->lex->open_string);
ftepp_recursion_footer(ftepp);
old_string = ftepp->output_string;
if (!ftepp_macro_call_params(ftepp, ¶ms))
return false;
- if (vec_size(params) != vec_size(macro->params)) {
- ftepp_error(ftepp, "macro %s expects %u paramteters, %u provided", macro->name,
+ if ( vec_size(params) < vec_size(macro->params) ||
+ (vec_size(params) > vec_size(macro->params) && !macro->variadic) )
+ {
+ ftepp_error(ftepp, "macro %s expects%s %u paramteters, %u provided", macro->name,
+ (macro->variadic ? " at least" : ""),
(unsigned int)vec_size(macro->params),
(unsigned int)vec_size(params));
retval = false;
{
ppmacro *macro;
bool wasnot = false;
+ bool wasneg = false;
if (!ftepp_skipspace(ftepp))
return false;
return false;
}
+ if (ftepp->token == TOKEN_OPERATOR && !strcmp(ftepp_tokval(ftepp), "-"))
+ {
+ wasneg = true;
+ ftepp_next(ftepp);
+ if (!ftepp_skipspace(ftepp))
+ return false;
+ }
+
switch (ftepp->token) {
case TOKEN_IDENT:
case TOKEN_TYPENAME:
}
break;
case TOKEN_STRINGCONST:
+ *value_out = 0;
*out = false;
break;
case TOKEN_INTCONST:
default:
ftepp_error(ftepp, "junk in #if: `%s` ...", ftepp_tokval(ftepp));
+ if (opts.debug)
+ ftepp_error(ftepp, "internal: token %i\n", ftepp->token);
return false;
}
+ if (wasneg)
+ *value_out = -*value_out;
if (wasnot) {
*out = !*out;
*value_out = (*out ? 1 : 0);
return filename;
}
-static void ftepp_directive_warning(ftepp_t *ftepp) {
+static bool ftepp_directive_warning(ftepp_t *ftepp) {
char *message = NULL;
if (!ftepp_skipspace(ftepp))
- return;
+ return false;
/* handle the odd non string constant case so it works like C */
if (ftepp->token != TOKEN_STRINGCONST) {
+ bool store = false;
vec_upload(message, "#warning", 8);
ftepp_next(ftepp);
while (ftepp->token != TOKEN_EOL) {
ftepp_next(ftepp);
}
vec_push(message, '\0');
- (void)!!ftepp_warn(ftepp, WARN_CPP, message);
+ store = ftepp_warn(ftepp, WARN_CPP, message);
vec_free(message);
- return;
+ return store;
}
unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
- (void)!!ftepp_warn(ftepp, WARN_CPP, "#warning %s", ftepp_tokval(ftepp));
+ return ftepp_warn(ftepp, WARN_CPP, "#warning %s", ftepp_tokval(ftepp));
}
static void ftepp_directive_error(ftepp_t *ftepp) {
ppmacro *macro;
bool newline = true;
+ /* predef stuff */
+ char *expand = NULL;
+ size_t i;
+
ftepp->lex->flags.preprocessing = true;
ftepp->lex->flags.mergelines = false;
ftepp->lex->flags.noops = true;
case TOKEN_KEYWORD:
case TOKEN_IDENT:
case TOKEN_TYPENAME:
+ /* is it a predef? */
+ if (OPTS_FLAG(FTEPP_PREDEFS)) {
+ for (i = 0; i < sizeof(ftepp_predefs) / sizeof (*ftepp_predefs); i++) {
+ if (!strcmp(ftepp_predefs[i].name, ftepp_tokval(ftepp))) {
+ expand = ftepp_predefs[i].func(ftepp->lex);
+ ftepp_out(ftepp, expand, false);
+ ftepp_next(ftepp); /* skip */
+
+ mem_d(expand); /* free memory */
+ break;
+ }
+ }
+ }
+
if (ftepp->output_on)
macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
else
macro = NULL;
+
if (!macro) {
ftepp_out(ftepp, ftepp_tokval(ftepp), false);
ftepp_next(ftepp);
ftepp_add_define(NULL, "__STD_GMQCC__");
sprintf(major, "\"%d\"", GMQCC_VERSION_MAJOR);
sprintf(minor, "\"%d\"", GMQCC_VERSION_MINOR);
+ } else if (opts.standard == COMPILER_QCCX) {
+ ftepp_add_define(NULL, "__STD_QCCX__");
+ sprintf(major, "\"%d\"", GMQCC_VERSION_MAJOR);
+ sprintf(minor, "\"%d\"", GMQCC_VERSION_MINOR);
} else if (opts.standard == COMPILER_QCC) {
ftepp_add_define(NULL, "__STD_QCC__");
/* 1.0 */
void ftepp_flush()
{
- vec_free(ftepp->output_string);
+ ftepp_flush_do(ftepp);
}
void ftepp_finish()
projects / xonotic / gmqcc.git / blobdiff