src/test/run-make/issue-19371/foo.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![feature(rustc_private)]
  12
  13 extern crate rustc;
  14 extern crate rustc_driver;
  15 extern crate rustc_lint;
  16 extern crate rustc_metadata;
  17 extern crate syntax;
  18
  19 use rustc::session::{build_session, Session};
  20 use rustc::session::config::{basic_options, build_configuration, Input, OutputType};
  21 use rustc_driver::driver::{compile_input, CompileController};
  22 use rustc_metadata::cstore::CStore;
  23 use syntax::diagnostics::registry::Registry;
  24 use syntax::parse::token;
  25
  26 use std::path::PathBuf;
  27 use std::rc::Rc;
  28
  29 fn main() {
  30     let src = r#"
  31     fn main() {}
  32     "#;
  33
  34     let args: Vec<String> = std::env::args().collect();
  35
  36     if args.len() < 4 {
  37         panic!("expected rustc path");
  38     }
  39
  40     let tmpdir = PathBuf::from(&args[1]);
  41
  42     let mut sysroot = PathBuf::from(&args[3]);
  43     sysroot.pop();
  44     sysroot.pop();
  45
  46     compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
  47
  48     compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
  49 }
  50
  51 fn basic_sess(sysroot: PathBuf) -> (Session, Rc<CStore>) {
  52     let mut opts = basic_options();
  53     opts.output_types.insert(OutputType::Exe, None);
  54     opts.maybe_sysroot = Some(sysroot);
  55
  56     let descriptions = Registry::new(&rustc::DIAGNOSTICS);
  57     let cstore = Rc::new(CStore::new(token::get_ident_interner()));
  58     let cstore_ = ::rustc_driver::cstore_to_cratestore(cstore.clone());
  59     let sess = build_session(opts, None, descriptions, cstore_);
  60     rustc_lint::register_builtins(&mut sess.lint_store.borrow_mut(), Some(&sess));
  61     (sess, cstore)
  62 }
  63
  64 fn compile(code: String, output: PathBuf, sysroot: PathBuf) {
  65     let (sess, cstore) = basic_sess(sysroot);
  66     let cfg = build_configuration(&sess);
  67     let control = CompileController::basic();
  68
  69     compile_input(sess, &cstore,
  70             cfg,
  71             &Input::Str(code),
  72             &None,
  73             &Some(output),
  74             None,
  75             control);
  76 }