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#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <gmp.h>
#include "alloc.h"
#include "analyzer.h"
#include "codegen.h"
#include "common.h"
#include "errors.h"
#include "lexer.h"
#include "parser.h"
/* Read the contents of FILE into a dynamically allocated buffer and
return it, storing the buffer size in BUFSZ. */
static char *readfile(const char *file, size_t *bufsz)
__attribute__((returns_nonnull, nonnull));
int
main(int argc, char **argv)
{
if (argc != 2) {
fputs("Usage: oryx file\n", stderr);
exit(EXIT_FAILURE);
}
size_t srclen;
char *src = readfile(argv[1], &srclen);
aux_t aux;
mpq_t *folds;
type_t *types;
scope_t *scps;
arena_t a = NULL;
lexemes_t toks = lexstring(src, srclen);
ast_t ast = parsetoks(toks, &aux);
analyzeprog(ast, aux, toks, &a, &types, &scps, &folds);
codegen(argv[1], folds, scps, types, ast, aux, toks);
#if DEBUG
for (size_t i = 0; i < ast.len; i++) {
if ((*folds[i])._mp_den._mp_d != NULL)
mpq_clear(folds[i]);
}
free(folds);
free(scps);
free(src);
free(types);
lexemes_free(toks);
ast_free(ast);
aux_free(aux);
arena_free(&a);
#endif
return EXIT_SUCCESS;
}
char *
readfile(const char *filename, size_t *n)
{
int fd = open(filename, O_RDONLY);
if (fd == -1)
err("open: %s:", filename);
struct stat sb;
if (fstat(fd, &sb) == -1)
err("fstat: %s:", filename);
char *p = bufalloc(NULL, sb.st_size + 4, 1);
ssize_t nr;
for (size_t off = 0; (nr = read(fd, p + off, sb.st_blksize)) > 0; off += nr)
;
if (nr == -1)
err("read: %s:", filename);
p[sb.st_size + 0] =
p[sb.st_size + 1] =
p[sb.st_size + 2] =
p[sb.st_size + 3] = 0;
*n = sb.st_size;
close(fd);
return p;
}
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