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/* Ninja
* Copyright 2007, Soren Sandmann Pedersen
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "ast.h"
ast_t *
compile (const char *input, gboolean do_optimize)
{
token_t *tokens;
ast_t *ast;
if (!(tokens = scan (input)))
return NULL;
if (!(ast = parse (tokens)))
return NULL;
if (!prepare (ast))
return NULL;
if (!symbol (ast))
return NULL;
if (!type_check (ast))
return NULL;
if (!mark_constants (ast))
return NULL;
if (!switch_check (ast))
return NULL;
if (!graph (ast))
return NULL;
if (!init_check (ast))
return NULL;
if (!return_check (ast))
return NULL;
if (!levels (ast))
return NULL;
if (do_optimize && !optimize (ast))
return NULL;
if (!offsets (ast))
return NULL;
return ast;
}
static void
usage (const char *arg0)
{
g_print ("Usage: %s [-O] [-d] filename\n", arg0);
g_print ("\n");
g_print ("-O: Optimize\n");
g_print ("-d: Print debug spew\n");
exit (1);
}
int
main (int argc, char **argv)
{
gboolean optimize = FALSE;
gboolean debug_spew = FALSE;
gboolean run_tests = FALSE;
const char *filename = NULL;
char *contents;
size_t size;
int i;
for (i = 1; i < argc; ++i)
{
char *arg = argv[i];
if (strcmp (arg, "-O") == 0)
{
optimize = TRUE;
}
else if (strcmp (arg, "-t") == 0)
{
run_tests = TRUE;
}
else if (strcmp (arg, "-d") == 0)
{
debug_spew = TRUE;
}
else if (!filename)
{
filename = arg;
}
else
{
usage (argv[0]);
}
}
if (run_tests)
run_internal_tests ();
else if (!filename)
usage (argv[0]);
if (!g_file_get_contents (filename, &contents, &size, NULL))
{
g_print ("Could not read %s\n", filename);
return 0;
}
else
{
ast_t *ast;
if ((ast = compile (contents, optimize)))
{
if (debug_spew)
{
dump_program (&ast->program);
dump_graph (&ast->program);
}
interpret (ast);
}
}
return 0;
}
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