408 lines
11 KiB
Rust
408 lines
11 KiB
Rust
// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
#[link(name = "rustc",
|
|
vers = "0.9-pre",
|
|
uuid = "0ce89b41-2f92-459e-bbc1-8f5fe32f16cf",
|
|
url = "https://github.com/mozilla/rust/tree/master/src/rustc")];
|
|
|
|
#[comment = "The Rust compiler"];
|
|
#[license = "MIT/ASL2"];
|
|
#[crate_type = "lib"];
|
|
|
|
#[feature(macro_rules, globs, struct_variant)];
|
|
|
|
// Rustc tasks always run on a fixed_stack_segment, so code in this
|
|
// module can call C functions (in particular, LLVM functions) with
|
|
// impunity.
|
|
#[allow(cstack)];
|
|
|
|
extern mod extra;
|
|
extern mod syntax;
|
|
|
|
use driver::driver::{host_triple, optgroups, early_error};
|
|
use driver::driver::{str_input, file_input, build_session_options};
|
|
use driver::driver::{build_session, build_configuration, parse_pretty};
|
|
use driver::driver::{PpMode, pretty_print_input, list_metadata};
|
|
use driver::driver::{compile_input};
|
|
use driver::session;
|
|
use middle::lint;
|
|
|
|
use std::comm;
|
|
use std::io;
|
|
use std::num;
|
|
use std::os;
|
|
use std::result;
|
|
use std::str;
|
|
use std::task;
|
|
use std::vec;
|
|
use extra::getopts::groups;
|
|
use extra::getopts;
|
|
use syntax::codemap;
|
|
use syntax::diagnostic::Emitter;
|
|
use syntax::diagnostic;
|
|
|
|
pub mod middle {
|
|
pub mod trans;
|
|
pub mod ty;
|
|
pub mod subst;
|
|
pub mod resolve;
|
|
pub mod typeck;
|
|
pub mod check_loop;
|
|
pub mod check_match;
|
|
pub mod check_const;
|
|
pub mod lint;
|
|
pub mod borrowck;
|
|
pub mod dataflow;
|
|
pub mod mem_categorization;
|
|
pub mod liveness;
|
|
pub mod kind;
|
|
pub mod freevars;
|
|
pub mod pat_util;
|
|
pub mod region;
|
|
pub mod const_eval;
|
|
pub mod astencode;
|
|
pub mod lang_items;
|
|
pub mod privacy;
|
|
pub mod moves;
|
|
pub mod entry;
|
|
pub mod effect;
|
|
pub mod reachable;
|
|
pub mod graph;
|
|
pub mod cfg;
|
|
pub mod stack_check;
|
|
}
|
|
|
|
pub mod front {
|
|
pub mod config;
|
|
pub mod test;
|
|
pub mod std_inject;
|
|
pub mod assign_node_ids;
|
|
pub mod feature_gate;
|
|
}
|
|
|
|
pub mod back {
|
|
pub mod link;
|
|
pub mod abi;
|
|
pub mod upcall;
|
|
pub mod arm;
|
|
pub mod mips;
|
|
pub mod x86;
|
|
pub mod x86_64;
|
|
pub mod rpath;
|
|
pub mod target_strs;
|
|
}
|
|
|
|
pub mod metadata;
|
|
|
|
pub mod driver;
|
|
|
|
pub mod util {
|
|
pub mod common;
|
|
pub mod ppaux;
|
|
}
|
|
|
|
pub mod lib {
|
|
pub mod llvm;
|
|
}
|
|
|
|
// A curious inner module that allows ::std::foo to be available in here for
|
|
// macros.
|
|
/*
|
|
mod std {
|
|
pub use std::clone;
|
|
pub use std::cmp;
|
|
pub use std::os;
|
|
pub use std::str;
|
|
pub use std::sys;
|
|
pub use std::to_bytes;
|
|
pub use std::unstable;
|
|
pub use extra::serialize;
|
|
}
|
|
*/
|
|
|
|
pub fn version(argv0: &str) {
|
|
let vers = match option_env!("CFG_VERSION") {
|
|
Some(vers) => vers,
|
|
None => "unknown version"
|
|
};
|
|
println!("{} {}", argv0, vers);
|
|
println!("host: {}", host_triple());
|
|
}
|
|
|
|
pub fn usage(argv0: &str) {
|
|
let message = format!("Usage: {} [OPTIONS] INPUT", argv0);
|
|
println!("{}\n\
|
|
Additional help:
|
|
-W help Print 'lint' options and default settings
|
|
-Z help Print internal options for debugging rustc\n",
|
|
groups::usage(message, optgroups()));
|
|
}
|
|
|
|
pub fn describe_warnings() {
|
|
use extra::sort::Sort;
|
|
println("
|
|
Available lint options:
|
|
-W <foo> Warn about <foo>
|
|
-A <foo> Allow <foo>
|
|
-D <foo> Deny <foo>
|
|
-F <foo> Forbid <foo> (deny, and deny all overrides)
|
|
");
|
|
|
|
let lint_dict = lint::get_lint_dict();
|
|
let mut lint_dict = lint_dict.move_iter()
|
|
.map(|(k, v)| (v, k))
|
|
.collect::<~[(lint::LintSpec, &'static str)]>();
|
|
lint_dict.qsort();
|
|
|
|
let mut max_key = 0;
|
|
for &(_, name) in lint_dict.iter() {
|
|
max_key = num::max(name.len(), max_key);
|
|
}
|
|
fn padded(max: uint, s: &str) -> ~str {
|
|
str::from_utf8(vec::from_elem(max - s.len(), ' ' as u8)) + s
|
|
}
|
|
println("\nAvailable lint checks:\n");
|
|
println!(" {} {:7.7s} {}",
|
|
padded(max_key, "name"), "default", "meaning");
|
|
println!(" {} {:7.7s} {}\n",
|
|
padded(max_key, "----"), "-------", "-------");
|
|
for (spec, name) in lint_dict.move_iter() {
|
|
let name = name.replace("_", "-");
|
|
println!(" {} {:7.7s} {}",
|
|
padded(max_key, name),
|
|
lint::level_to_str(spec.default),
|
|
spec.desc);
|
|
}
|
|
io::println("");
|
|
}
|
|
|
|
pub fn describe_debug_flags() {
|
|
println("\nAvailable debug options:\n");
|
|
let r = session::debugging_opts_map();
|
|
for tuple in r.iter() {
|
|
match *tuple {
|
|
(ref name, ref desc, _) => {
|
|
println!(" -Z {:>20s} -- {}", *name, *desc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn run_compiler(args: &[~str], demitter: @diagnostic::Emitter) {
|
|
let mut args = args.to_owned();
|
|
let binary = args.shift().to_managed();
|
|
|
|
if args.is_empty() { usage(binary); return; }
|
|
|
|
let matches =
|
|
&match getopts::groups::getopts(args, optgroups()) {
|
|
Ok(m) => m,
|
|
Err(f) => {
|
|
early_error(demitter, f.to_err_msg());
|
|
}
|
|
};
|
|
|
|
if matches.opt_present("h") || matches.opt_present("help") {
|
|
usage(binary);
|
|
return;
|
|
}
|
|
|
|
// Display the available lint options if "-W help" or only "-W" is given.
|
|
let lint_flags = vec::append(matches.opt_strs("W"),
|
|
matches.opt_strs("warn"));
|
|
|
|
let show_lint_options = lint_flags.iter().any(|x| x == &~"help") ||
|
|
(matches.opt_present("W") && lint_flags.is_empty());
|
|
|
|
if show_lint_options {
|
|
describe_warnings();
|
|
return;
|
|
}
|
|
|
|
let r = matches.opt_strs("Z");
|
|
if r.iter().any(|x| x == &~"help") {
|
|
describe_debug_flags();
|
|
return;
|
|
}
|
|
|
|
if matches.opt_str("passes") == Some(~"list") {
|
|
unsafe { lib::llvm::llvm::LLVMRustPrintPasses(); }
|
|
return;
|
|
}
|
|
|
|
if matches.opt_present("v") || matches.opt_present("version") {
|
|
version(binary);
|
|
return;
|
|
}
|
|
let input = match matches.free.len() {
|
|
0u => early_error(demitter, "no input filename given"),
|
|
1u => {
|
|
let ifile = matches.free[0].as_slice();
|
|
if "-" == ifile {
|
|
let src = str::from_utf8(io::stdin().read_whole_stream());
|
|
str_input(src.to_managed())
|
|
} else {
|
|
file_input(Path(ifile))
|
|
}
|
|
}
|
|
_ => early_error(demitter, "multiple input filenames provided")
|
|
};
|
|
|
|
let sopts = build_session_options(binary, matches, demitter);
|
|
let sess = build_session(sopts, demitter);
|
|
let odir = matches.opt_str("out-dir").map(|o| Path(o));
|
|
let ofile = matches.opt_str("o").map(|o| Path(o));
|
|
let cfg = build_configuration(sess);
|
|
let pretty = do matches.opt_default("pretty", "normal").map |a| {
|
|
parse_pretty(sess, a)
|
|
};
|
|
match pretty {
|
|
Some::<PpMode>(ppm) => {
|
|
pretty_print_input(sess, cfg, &input, ppm);
|
|
return;
|
|
}
|
|
None::<PpMode> => {/* continue */ }
|
|
}
|
|
let ls = matches.opt_present("ls");
|
|
if ls {
|
|
match input {
|
|
file_input(ref ifile) => {
|
|
list_metadata(sess, &(*ifile), io::stdout());
|
|
}
|
|
str_input(_) => {
|
|
early_error(demitter, "can not list metadata for stdin");
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
compile_input(sess, cfg, &input, &odir, &ofile);
|
|
}
|
|
|
|
#[deriving(Eq)]
|
|
pub enum monitor_msg {
|
|
fatal,
|
|
done,
|
|
}
|
|
|
|
struct RustcEmitter {
|
|
ch_capture: comm::SharedChan<monitor_msg>
|
|
}
|
|
|
|
impl diagnostic::Emitter for RustcEmitter {
|
|
fn emit(&self,
|
|
cmsp: Option<(@codemap::CodeMap, codemap::Span)>,
|
|
msg: &str,
|
|
lvl: diagnostic::level) {
|
|
if lvl == diagnostic::fatal {
|
|
self.ch_capture.send(fatal)
|
|
}
|
|
|
|
diagnostic::DefaultEmitter.emit(cmsp, msg, lvl)
|
|
}
|
|
}
|
|
|
|
/*
|
|
This is a sanity check that any failure of the compiler is performed
|
|
through the diagnostic module and reported properly - we shouldn't be calling
|
|
plain-old-fail on any execution path that might be taken. Since we have
|
|
console logging off by default, hitting a plain fail statement would make the
|
|
compiler silently exit, which would be terrible.
|
|
|
|
This method wraps the compiler in a subtask and injects a function into the
|
|
diagnostic emitter which records when we hit a fatal error. If the task
|
|
fails without recording a fatal error then we've encountered a compiler
|
|
bug and need to present an error.
|
|
*/
|
|
pub fn monitor(f: ~fn(@diagnostic::Emitter)) {
|
|
use std::comm::*;
|
|
|
|
// XXX: This is a hack for newsched since it doesn't support split stacks.
|
|
// rustc needs a lot of stack!
|
|
static STACK_SIZE: uint = 6000000;
|
|
|
|
let (p, ch) = stream();
|
|
let ch = SharedChan::new(ch);
|
|
let ch_capture = ch.clone();
|
|
let mut task_builder = task::task();
|
|
task_builder.supervised();
|
|
|
|
// XXX: Hacks on hacks. If the env is trying to override the stack size
|
|
// then *don't* set it explicitly.
|
|
if os::getenv("RUST_MIN_STACK").is_none() {
|
|
task_builder.opts.stack_size = Some(STACK_SIZE);
|
|
}
|
|
|
|
match do task_builder.try {
|
|
let ch = ch_capture.clone();
|
|
// The 'diagnostics emitter'. Every error, warning, etc. should
|
|
// go through this function.
|
|
let demitter = @RustcEmitter {
|
|
ch_capture: ch.clone(),
|
|
} as @diagnostic::Emitter;
|
|
|
|
struct finally {
|
|
ch: SharedChan<monitor_msg>,
|
|
}
|
|
|
|
impl Drop for finally {
|
|
fn drop(&mut self) { self.ch.send(done); }
|
|
}
|
|
|
|
let _finally = finally { ch: ch };
|
|
|
|
f(demitter);
|
|
|
|
// Due reasons explain in #7732, if there was a jit execution context it
|
|
// must be consumed and passed along to our parent task.
|
|
back::link::jit::consume_engine()
|
|
} {
|
|
result::Ok(_) => { /* fallthrough */ }
|
|
result::Err(_) => {
|
|
// Task failed without emitting a fatal diagnostic
|
|
if p.recv() == done {
|
|
diagnostic::DefaultEmitter.emit(
|
|
None,
|
|
diagnostic::ice_msg("unexpected failure"),
|
|
diagnostic::error);
|
|
|
|
let xs = [
|
|
~"the compiler hit an unexpected failure path. \
|
|
this is a bug",
|
|
~"try running with RUST_LOG=rustc=1 \
|
|
to get further details and report the results \
|
|
to github.com/mozilla/rust/issues"
|
|
];
|
|
for note in xs.iter() {
|
|
diagnostic::DefaultEmitter.emit(None,
|
|
*note,
|
|
diagnostic::note)
|
|
}
|
|
}
|
|
// Fail so the process returns a failure code
|
|
fail2!();
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn main() {
|
|
std::os::set_exit_status(main_args(std::os::args()));
|
|
}
|
|
|
|
pub fn main_args(args: &[~str]) -> int {
|
|
let owned_args = args.to_owned();
|
|
do monitor |demitter| {
|
|
run_compiler(owned_args, demitter);
|
|
}
|
|
|
|
return 0;
|
|
}
|