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// -*- rust -*-
import front.creader;
import front.parser;
import front.token;
import front.eval;
import middle.trans;
import middle.resolve;
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;
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))
);
}
impure 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;
}
impure fn compile_input(session.session sess,
eval.env env,
str input, str output,
bool shared,
bool optimize,
bool parse_only,
vec[str] library_search_paths) {
auto def = tup(0, 0);
auto p = parser.new_parser(sess, env, def, input);
auto crate = parse_input(sess, p, input);
if (parse_only) {ret;}
crate = creader.read_crates(sess, crate, library_search_paths);
crate = resolve.resolve_crate(sess, crate);
auto typeck_result = typeck.check_crate(sess, 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, type_cache, output, shared, optimize);
}
impure 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);
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() {
log "This is the rust 'self-hosted' compiler.";
log "The one written in rust.";
log "It is currently incomplete.";
log "You may want rustboot instead, the compiler next door.";
}
fn usage(session.session sess, str argv0) {
log #fmt("usage: %s [options] <input>", argv0);
log "options:";
log "";
log " -o <filename> write output to <filename>";
log " -nowarn suppress wrong-compiler warning";
log " -glue generate glue.bc file";
log " -shared compile a shared-library crate";
log " -pp pretty-print the input instead of compiling";
log " -ls list the symbols defined by a crate file";
log " -L <path> add a directory to the library search path";
log " -h display this message";
log "";
log "";
}
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; }
}
impure 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;
auto sess = session.session(target_crate_num, target_cfg, crate_cache);
let option.t[str] input_file = none[str];
let option.t[str] output_file = none[str];
let vec[str] library_search_paths = vec();
let bool do_warn = true;
let bool shared = false;
let bool pretty = false;
let bool ls = false;
let bool parse_only = false;
let bool glue = false;
// FIXME: Maybe we should support -O0, -O1, -Os, etc
let bool optimize = false;
auto i = 1u;
auto len = _vec.len[str](args);
// FIXME: a getopt module would be nice.
while (i < len) {
auto arg = args.(i);
if (_str.byte_len(arg) > 0u && arg.(0) == '-' as u8) {
if (_str.eq(arg, "-nowarn")) {
do_warn = false;
} else if (_str.eq(arg, "-O")) {
optimize = true;
} else if (_str.eq(arg, "-glue")) {
glue = true;
} else if (_str.eq(arg, "-shared")) {
shared = true;
} else if (_str.eq(arg, "-pp")) {
pretty = true;
} else if (_str.eq(arg, "-ls")) {
ls = true;
} else if (_str.eq(arg, "-parse-only")) {
parse_only = true;
} else if (_str.eq(arg, "-o")) {
if (i+1u < len) {
output_file = some(args.(i+1u));
i += 1u;
} else {
usage(sess, args.(0));
sess.err("-o requires an argument");
}
} else if (_str.eq(arg, "-L")) {
if (i+1u < len) {
library_search_paths += vec(args.(i+1u));
i += 1u;
} else {
usage(sess, args.(0));
sess.err("-L requires an argument");
}
} else if (_str.eq(arg, "-h")) {
usage(sess, args.(0));
} else {
usage(sess, args.(0));
sess.err("unrecognized option: " + arg);
}
} else {
alt (input_file) {
case (some[str](_)) {
usage(sess, args.(0));
sess.err("multiple inputs provided");
}
case (none[str]) {
input_file = some[str](arg);
}
}
}
i += 1u;
}
if (do_warn) {
warn_wrong_compiler();
}
if (glue) {
alt (output_file) {
case (none[str]) {
middle.trans.make_common_glue("glue.bc", optimize);
}
case (some[str](?s)) {
middle.trans.make_common_glue(s, optimize);
}
}
ret;
}
alt (input_file) {
case (none[str]) {
usage(sess, args.(0));
sess.err("no input filename");
}
case (some[str](?ifile)) {
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, parse_only,
library_search_paths);
}
case (some[str](?ofile)) {
compile_input(sess, env, ifile, ofile, shared,
optimize, parse_only,
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:
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