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// Copyright 2014 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.
extern crate rustc;
extern crate rustc_driver;
extern crate syntax;
use rustc::session::{build_session, Session};
use rustc::session::config::{basic_options, build_configuration, Input, OutputTypeExe};
use rustc_driver::driver::{compile_input};
use syntax::diagnostics::registry::Registry;
fn main() {
let src = r#"
fn main() {}
"#;
let args = std::os::args();
if args.len() < 4 {
panic!("expected rustc path");
}
let tmpdir = Path::new(args[1].as_slice());
let mut sysroot = Path::new(args[3].as_slice());
sysroot.pop();
sysroot.pop();
compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
}
fn basic_sess(sysroot: Path) -> Session {
let mut opts = basic_options();
opts.output_types = vec![OutputTypeExe];
opts.maybe_sysroot = Some(sysroot);
let descriptions = Registry::new(&rustc::DIAGNOSTICS);
let sess = build_session(opts, None, descriptions);
sess
}
fn compile(code: String, output: Path, sysroot: Path) {
let sess = basic_sess(sysroot);
let cfg = build_configuration(&sess);
compile_input(sess,
cfg,
&Input::Str(code),
&None,
&Some(output),
None);
}
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