1 #![feature(rustc_private)]
3 extern crate rustc_driver;
4 extern crate rustc_interface;
5 extern crate rustc_session;
6 extern crate rustc_span;
8 use rustc_interface::interface;
9 use rustc_session::config::{Input, Options, OutputType, OutputTypes};
10 use rustc_span::source_map::FileName;
12 use std::path::PathBuf;
19 let args: Vec<String> = std::env::args().collect();
22 panic!("expected rustc path");
25 let tmpdir = PathBuf::from(&args[1]);
27 let mut sysroot = PathBuf::from(&args[3]);
31 compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
33 compile(src.to_string(), tmpdir.join("out"), sysroot.clone());
36 fn compile(code: String, output: PathBuf, sysroot: PathBuf) {
37 let mut opts = Options::default();
38 opts.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
39 opts.maybe_sysroot = Some(sysroot);
41 if let Ok(linker) = std::env::var("RUSTC_LINKER") {
42 opts.cg.linker = Some(linker.into());
45 let name = FileName::anon_source_code(&code);
46 let input = Input::Str { name, input: code };
48 let config = interface::Config {
50 crate_cfg: Default::default(),
51 crate_check_cfg: Default::default(),
53 output_file: Some(output),
56 lint_caps: Default::default(),
57 parse_sess_created: None,
59 override_queries: None,
60 make_codegen_backend: None,
61 registry: rustc_driver::diagnostics_registry(),
64 interface::run_compiler(config, |compiler| {
65 // This runs all the passes prior to linking, too.
66 let linker = compiler.enter(|queries| queries.linker());
67 if let Ok(linker) = linker {