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|
#include "mruby.h"
#include "mruby/proc.h"
#include "mruby/dump.h"
#include "mruby/cdump.h"
#include "mruby/compile.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define RITEBIN_EXT ".mrb"
#define C_EXT ".c"
void mrb_show_version(mrb_state *);
void mrb_show_copyright(mrb_state *);
void parser_dump(mrb_state*, struct mrb_ast_node*, int);
void codedump_all(mrb_state*, int);
struct _args {
FILE *rfp;
FILE *wfp;
char *filename;
char *initname;
char *ext;
int check_syntax : 1;
int dump_type : 2;
int verbose : 1;
};
static void
usage(const char *name)
{
static const char *const usage_msg[] = {
"switches:",
"-c check syntax only",
"-o<outfile> place the output into <outfile>",
"-v print version number, then trun on verbose mode",
"-B<symbol> binary <symbol> output in C language format",
"-C<func> function <func> output in C language format",
"--verbose run at verbose mode",
"--version print the version",
"--copyright print the copyright",
NULL
};
const char *const *p = usage_msg;
printf("Usage: %s [switches] programfile\n", name);
while(*p)
printf(" %s\n", *p++);
}
static char *
get_outfilename(char *infile, char *ext)
{
char *outfile;
char *p;
outfile = (char*)malloc(strlen(infile) + strlen(ext) + 1);
strcpy(outfile, infile);
if (*ext) {
if ((p = strrchr(outfile, '.')) == NULL)
p = &outfile[strlen(outfile)];
strcpy(p, ext);
}
return outfile;
}
static int
parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
{
char *infile = NULL;
char *outfile = NULL;
char **origargv = argv;
int result = 0;
static const struct _args args_zero = { 0 };
*args = args_zero;
args->ext = RITEBIN_EXT;
for (argc--,argv++; argc > 0; argc--,argv++) {
if (**argv == '-') {
if (strlen(*argv) == 1) {
args->filename = infile = "-";
args->rfp = stdin;
break;
}
switch ((*argv)[1]) {
case 'o':
outfile = get_outfilename((*argv) + 2, "");
break;
case 'B':
case 'C':
args->ext = C_EXT;
args->initname = (*argv) + 2;
if (*args->initname == '\0') {
printf("%s: Function name is not specified.\n", *origargv);
result = -2;
goto exit;
}
args->dump_type = ((*argv)[1] == 'B') ? DUMP_TYPE_BIN : DUMP_TYPE_CODE;
break;
case 'c':
args->check_syntax = 1;
break;
case 'v':
mrb_show_version(mrb);
args->verbose = 1;
break;
case '-':
if (strcmp((*argv) + 2, "version") == 0) {
mrb_show_version(mrb);
exit(0);
}
else if (strcmp((*argv) + 2, "verbose") == 0) {
args->verbose = 1;
break;
}
else if (strcmp((*argv) + 2, "copyright") == 0) {
mrb_show_copyright(mrb);
exit(0);
}
result = -3;
goto exit;
default:
break;
}
}
else if (args->rfp == NULL) {
args->filename = infile = *argv;
if ((args->rfp = fopen(infile, "r")) == NULL) {
printf("%s: Cannot open program file. (%s)\n", *origargv, infile);
goto exit;
}
}
}
if (infile == NULL) {
result = -4;
goto exit;
}
if (!args->check_syntax) {
if (outfile == NULL) {
if (strcmp("-", infile) == 0) {
outfile = infile;
}
else {
outfile = get_outfilename(infile, args->ext);
}
}
if (strcmp("-", outfile) == 0) {
args->wfp = stdout;
}
else if ((args->wfp = fopen(outfile, "wb")) == NULL) {
printf("%s: Cannot open output file. (%s)\n", *origargv, outfile);
result = -1;
goto exit;
}
}
exit:
if (outfile && infile != outfile) free(outfile);
return result;
}
static void
cleanup(mrb_state *mrb, struct _args *args)
{
if (args->rfp)
fclose(args->rfp);
if (args->wfp)
fclose(args->wfp);
mrb_close(mrb);
}
int
main(int argc, char **argv)
{
mrb_state *mrb = mrb_open();
int n = -1;
struct _args args;
mrbc_context *c;
mrb_value result;
if (mrb == NULL) {
fprintf(stderr, "Invalid mrb_state, exiting mrbc");
return EXIT_FAILURE;
}
n = parse_args(mrb, argc, argv, &args);
if (n < 0 || args.rfp == NULL) {
cleanup(mrb, &args);
usage(argv[0]);
return n;
}
c = mrbc_context_new(mrb);
if (args.verbose)
c->dump_result = 1;
c->no_exec = 1;
c->filename = args.filename;
result = mrb_load_file_cxt(mrb, args.rfp, c);
if (mrb_undef_p(result) || mrb_fixnum(result) < 0) {
cleanup(mrb, &args);
return EXIT_FAILURE;
}
if (args.check_syntax) {
printf("Syntax OK\n");
cleanup(mrb, &args);
return EXIT_SUCCESS;
}
if (args.initname) {
if (args.dump_type == DUMP_TYPE_BIN)
n = mrb_bdump_irep(mrb, n, args.wfp, args.initname);
else
n = mrb_cdump_irep(mrb, n, args.wfp, args.initname);
}
else {
n = mrb_dump_irep(mrb, n, args.wfp);
}
cleanup(mrb, &args);
return EXIT_SUCCESS;
}
void
mrb_init_mrblib(mrb_state *mrb)
{
}
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