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 rustc_errors;
  18 extern crate syntax;
  19
  20 use rustc::dep_graph::DepGraph;
  21 use rustc::session::{build_session, Session};
  22 use rustc::session::config::{basic_options, build_configuration, Input,
  23                              OutputType, OutputTypes};
  24 use rustc_driver::driver::{compile_input, CompileController, anon_src};
  25 use rustc_metadata::cstore::CStore;
  26 use rustc_errors::registry::Registry;
  27
  28 use std::path::PathBuf;
  29 use std::rc::Rc;
  30
  31 fn main() {
  32     let src = r#"
  33     fn main() {}
  34     "#;
  35
  36     let args: Vec<String> = std::env::args().collect();
  37
  38     if args.len() < 4 {
  39         panic!("expected rustc path");
  40     }
  41
  42     let tmpdir = PathBuf::from(&args[1]);
  43
  44     let mut sysroot = PathBuf::from(&args[3]);
  45     sysroot.pop();
  46     sysroot.pop();
  47
  48     compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
  49
  50     compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
  51 }
  52
  53 fn basic_sess(sysroot: PathBuf) -> (Session, Rc<CStore>) {
  54     let mut opts = basic_options();
  55     opts.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
  56     opts.maybe_sysroot = Some(sysroot);
  57
  58     let descriptions = Registry::new(&rustc::DIAGNOSTICS);
  59     let dep_graph = DepGraph::new(opts.build_dep_graph());
  60     let cstore = Rc::new(CStore::new(&dep_graph));
  61     let sess = build_session(opts, &dep_graph, None, descriptions, cstore.clone());
  62     rustc_lint::register_builtins(&mut sess.lint_store.borrow_mut(), Some(&sess));
  63     (sess, cstore)
  64 }
  65
  66 fn compile(code: String, output: PathBuf, sysroot: PathBuf) {
  67     let (sess, cstore) = basic_sess(sysroot);
  68     let cfg = build_configuration(&sess, vec![]);
  69     let control = CompileController::basic();
  70
  71     compile_input(&sess, &cstore,
  72             cfg,
  73             &Input::Str { name: anon_src(), input: code },
  74             &None,
  75             &Some(output),
  76             None,
  77             &control);
  78 }