X-Git-Url: https://git.draconx.ca/gitweb/cdecl99.git/blobdiff_plain/846e987e42c15064fa078e0b708872f7938ceb09..568c39ad1836f8cf87ccc1b2ba577b6f6ba37e25:/test/randomdecl.c

diff --git a/test/randomdecl.c b/test/randomdecl.c
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--- /dev/null
+++ b/test/randomdecl.c
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+/*
+ *  Generate random C declarations for testing.
+ *  Copyright © 2011 Nick Bowler
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <getopt.h>
+#include <cdecl.h>
+
+#include "declgen.h"
+#include "test.h"
+
+#define PROGNAME "randomdecl"
+static const char *progname = PROGNAME;
+static const char sopts[] = "s:n:VH";
+static const struct option lopts[] = {
+	{ "seed",    1, NULL, 's' },
+	{ "count",   1, NULL, 'n' },
+	{ "version", 0, NULL, 'V' },
+	{ "help",    0, NULL, 'H' },
+	{ 0 }
+};
+
+static void print_version()
+{
+	puts(PROGNAME " (" PACKAGE_NAME ") " PACKAGE_VERSION);
+	puts("Copyright (C) 2011 Nick Bowler.");
+	puts("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.");
+	puts("This is free software: you are free to change and redistribute it.");
+	puts("There is NO WARRANTY, to the extent permitted by law.");
+}
+
+static void print_usage(FILE *f)
+{
+	fprintf(f, "Usage: %s [options]\n", progname);
+}
+
+static void print_help(void)
+{
+	print_usage(stdout);
+	puts("Detailed help coming soon.");
+}
+
+static struct cdecl *random_decl(struct gen_rng *rng)
+{
+	struct cdecl *decl;
+	unsigned flags = 0;
+
+	decl = malloc_nofail(sizeof *decl);
+	*decl = (struct cdecl) { 0 };
+
+	decl->declarators = gen_declarators(rng);
+	if (decl->declarators->type != CDECL_DECL_FUNCTION)
+		flags |= GEN_NO_FUNCTION;
+	if (cdecl_is_abstract(decl->declarators))
+		flags |= GEN_NO_STORAGE | GEN_NO_FUNCTION;
+	if (decl->declarators->type == CDECL_DECL_ARRAY
+	    || decl->declarators->type == CDECL_DECL_IDENT)
+		flags |= GEN_NO_VOID;
+
+	decl->specifiers = gen_declspecs(rng, flags);
+	return decl;
+}
+
+int main(int argc, char **argv)
+{
+	const char *seed = "", *count_str = NULL;
+	struct gen_rng *rng;
+	struct cdecl *decl;
+	unsigned long count = 0;
+	int opt;
+
+	if (argc > 0)
+		progname = argv[0];
+
+	while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
+		switch (opt) {
+		case 's':
+			seed = optarg;
+			break;
+		case 'n':
+			count_str = optarg;
+			break;
+		case 'V':
+			print_version();
+			return EXIT_SUCCESS;
+		case 'H':
+			print_help();
+			return EXIT_SUCCESS;
+		default:
+			print_usage(stderr);
+			return EXIT_FAILURE;
+		}
+	}
+
+	if (count_str && !strict_strtoul(&count, count_str, 0)) {
+		fprintf(stderr, "%s: invalid count: %s\n", progname, count_str);
+		return EXIT_FAILURE;
+	}
+
+	rng = gen_alloc_rng(seed);
+	if (!rng)
+		return EXIT_FAILURE;
+
+	for (unsigned long i = 0; !count || i < count; i++) {
+		decl = random_decl(rng);
+		if (!decl)
+			return EXIT_FAILURE;
+
+		test_print_decl(decl);
+	}
+
+	return EXIT_SUCCESS;
+}