1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* bock.c -- bootstrapping compiler for a Java(tm)-like language
* Written by Charles Briscoe-Smith; refer to the file LEGAL for details.
*/
#include <stdlib.h>
#include <stdio.h>
#include "packagetree.h"
#include "codegen.h"
#include "transform.h"
int num_errors=0;
extern int input_line;
extern void yyrestart(FILE *);
extern int yyparse();
extern const char *input_file;
struct typedecl *bock_cu;
int
main(int ac, char *av[])
{
FILE *fp=0;
int help=0;
const char *name=*av;
const char *output_name=0;
char *start_class=0;
for (ac--, av++; ac; ac--, av++) {
if ((*av)[0]=='-') {
switch ((*av)[1]) {
case '-':
fprintf(stderr, "%s: no long options\n", name);
num_errors++;
break;
case 'o':
if ((*av)[2]) {
output_name=&((*av)[2]);
} else if (*++av) {
output_name=*av;
ac--;
} else {
av--;
num_errors++;
fprintf(stderr,
"%s: output name not specified\n",
name);
}
break;
case 's':
if ((*av)[2]) {
start_class=&((*av)[2]);
} else if (*++av) {
start_class=*av;
ac--;
} else {
av--;
num_errors++;
fprintf(stderr,
"%s: start class not specified\n",
name);
}
break;
case 'h':
help=1;
num_errors++;
break;
default:
num_errors++;
fprintf(stderr, "%s: unknown option `%c'\n",
name, (*av)[1]);
}
continue;
}
fp=fopen(*av, "r");
if (fp==0) {
perror(*av);
num_errors++;
continue;
}
yyrestart(fp);
input_file=*av;
input_line=1;
if (yyparse()) {
num_errors++;
}
fclose(fp);
if (num_errors==0) {
packagetree_add_compunit(bock_cu);
}
}
if (help==0 && start_class==0) {
fprintf(stderr, "%s: Start class not specified; using `Test'\n", name);
start_class="Test";
}
if (fp==0) {
fprintf(stderr, "%s: No compilation units\n", name);
num_errors++;
}
if (num_errors) {
fprintf(help?stdout:stderr,
"Usage: %s -s startclass [-o outfile] javafile...\n",
name);
return 1;
}
/* We've loaded all the source code. Now do some munging... */
transform();
/* And spit out the appropriate C code... */
if (output_name) {
fp=fopen(output_name, "w");
if (fp) {
codegen(fp, start_class);
} else {
perror(output_name);
num_errors++;
}
} else {
codegen(stdout, start_class);
}
if (num_errors) {
return 1;
}
return 0;
}
|
