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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
// -*- rust -*-
import front.creader;
import front.parser;
import front.token;
import front.eval;
import middle.trans;
import middle.resolve;
import middle.capture;
import middle.ty;
import middle.typeck;
import middle.typestate_check;
import util.common;
import std.map.mk_hashmap;
import std.option;
import std.option.some;
import std.option.none;
import std._str;
import std._vec;
import std.io;
import std.GetOpts;
import std.GetOpts.optopt;
import std.GetOpts.optmulti;
import std.GetOpts.optflag;
import std.GetOpts.opt_present;
fn default_environment(session.session sess,
str argv0,
str input) -> eval.env {
auto libc = "libc.so";
alt (sess.get_targ_cfg().os) {
case (session.os_win32) { libc = "msvcrt.dll"; }
case (session.os_macos) { libc = "libc.dylib"; }
case (session.os_linux) { libc = "libc.so.6"; }
}
ret
vec(
// Target bindings.
tup("target_os", eval.val_str(std.os.target_os())),
tup("target_arch", eval.val_str("x86")),
tup("target_libc", eval.val_str(libc)),
// Build bindings.
tup("build_compiler", eval.val_str(argv0)),
tup("build_input", eval.val_str(input))
);
}
fn parse_input(session.session sess,
parser.parser p,
str input) -> @front.ast.crate {
if (_str.ends_with(input, ".rc")) {
ret parser.parse_crate_from_crate_file(p);
} else if (_str.ends_with(input, ".rs")) {
ret parser.parse_crate_from_source_file(p);
}
sess.err("unknown input file type: " + input);
fail;
}
fn compile_input(session.session sess,
eval.env env,
str input, str output,
bool shared,
bool optimize,
bool verify,
bool save_temps,
trans.output_type ot,
vec[str] library_search_paths) {
auto def = tup(0, 0);
auto p = parser.new_parser(sess, env, def, input, 0u);
auto crate = parse_input(sess, p, input);
if (ot == trans.output_type_none) {ret;}
crate = creader.read_crates(sess, crate, library_search_paths);
crate = resolve.resolve_crate(sess, crate);
capture.check_for_captures(sess, crate);
auto ty_cx = ty.mk_ctxt();
auto typeck_result = typeck.check_crate(sess, ty_cx, crate);
crate = typeck_result._0;
auto type_cache = typeck_result._1;
// FIXME: uncomment once typestate_check works
// crate = typestate_check.check_crate(crate);
trans.trans_crate(sess, crate, ty_cx, type_cache, output, shared,
optimize, verify, save_temps, ot);
}
fn pretty_print_input(session.session sess,
eval.env env,
str input) {
auto def = tup(0, 0);
auto p = front.parser.new_parser(sess, env, def, input, 0u);
auto crate = front.parser.parse_crate_from_source_file(p);
pretty.pprust.print_file(crate.node.module, input, std.io.stdout());
}
fn warn_wrong_compiler() {
io.stdout().write_str("This is the rust 'self-hosted' compiler.
The one written in rust.
It is currently incomplete.
You may want rustboot instead, the compiler next door.\n");
}
fn usage(session.session sess, str argv0) {
io.stdout().write_str(#fmt("usage: %s [options] <input>\n", argv0) + "
options:
-o <filename> write output to <filename>
--nowarn suppress wrong-compiler warning
--glue generate glue.bc file
--shared compile a shared-library crate
--pretty pretty-print the input instead of compiling
--ls list the symbols defined by a crate file
-L <path> add a directory to the library search path
--noverify suppress LLVM verification step (slight speedup)
--parse-only parse only; do not compile, assemble, or link
-O optimize
-S compile only; do not assemble or link
-c compile and assemble, but do not link
--save-temps write intermediate files in addition to normal output
-h display this message\n\n");
}
fn get_os() -> session.os {
auto s = std.os.target_os();
if (_str.eq(s, "win32")) { ret session.os_win32; }
if (_str.eq(s, "macos")) { ret session.os_macos; }
if (_str.eq(s, "linux")) { ret session.os_linux; }
}
fn main(vec[str] args) {
// FIXME: don't hard-wire this.
auto target_cfg = rec(os = get_os(),
arch = session.arch_x86,
int_type = common.ty_i32,
uint_type = common.ty_u32,
float_type = common.ty_f64 );
auto crate_cache = common.new_int_hash[session.crate_metadata]();
auto target_crate_num = 0;
let vec[@front.ast.meta_item] md = vec();
auto sess = session.session(target_crate_num, target_cfg, crate_cache,
md, front.codemap.new_codemap());
auto opts = vec(optflag("nowarn"), optflag("h"), optflag("glue"),
optflag("pretty"), optflag("ls"), optflag("parse-only"),
optflag("O"), optflag("shared"), optmulti("L"),
optflag("S"), optflag("c"), optopt("o"),
optflag("save-temps"), optflag("noverify"));
auto binary = _vec.shift[str](args);
auto match;
alt (GetOpts.getopts(args, opts)) {
case (GetOpts.failure(?f)) { sess.err(GetOpts.fail_str(f)); fail; }
case (GetOpts.success(?m)) { match = m; }
}
if (!opt_present(match, "nowarn")) {
warn_wrong_compiler();
}
if (opt_present(match, "h")) {
usage(sess, binary);
ret;
}
auto pretty = opt_present(match, "pretty");
auto ls = opt_present(match, "ls");
auto glue = opt_present(match, "glue");
auto shared = opt_present(match, "shared");
auto output_file = GetOpts.opt_maybe_str(match, "o");
auto library_search_paths = GetOpts.opt_strs(match, "L");
auto ot = trans.output_type_bitcode;
if (opt_present(match, "parse-only")) {
ot = trans.output_type_none;
} else if (opt_present(match, "S")) {
ot = trans.output_type_assembly;
} else if (opt_present(match, "c")) {
ot = trans.output_type_object;
}
auto verify = !opt_present(match, "noverify");
auto save_temps = opt_present(match, "save-temps");
// FIXME: Maybe we should support -O0, -O1, -Os, etc
auto optimize = opt_present(match, "O");
auto n_inputs = _vec.len[str](match.free);
if (glue) {
if (n_inputs > 0u) {
sess.err("No input files allowed with --glue.");
}
auto out = option.from_maybe[str]("glue.bc", output_file);
middle.trans.make_common_glue(out, optimize, verify, save_temps, ot);
ret;
}
if (n_inputs == 0u) {
sess.err("No input filename given.");
} else if (n_inputs > 1u) {
sess.err("Multiple input filenames provided.");
}
auto ifile = match.free.(0);
auto env = default_environment(sess, args.(0), ifile);
if (pretty) {
pretty_print_input(sess, env, ifile);
} else if (ls) {
front.creader.list_file_metadata(ifile, std.io.stdout());
} else {
alt (output_file) {
case (none[str]) {
let vec[str] parts = _str.split(ifile, '.' as u8);
_vec.pop[str](parts);
parts += vec(".bc");
auto ofile = _str.concat(parts);
compile_input(sess, env, ifile, ofile, shared,
optimize, verify, save_temps, ot,
library_search_paths);
}
case (some[str](?ofile)) {
compile_input(sess, env, ifile, ofile, shared,
optimize, verify, save_temps, ot,
library_search_paths);
}
}
}
}
// Local Variables:
// mode: rust
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
// End:
|
