1 use std::path::PathBuf;
6 // The src directory (we are in src/tools/error_index_generator)
7 // Note that we could skip one of the .. but this ensures we at least loosely find the right
9 let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
10 let dest = out_dir.join("error_codes.rs");
12 let error_codes_path = "../../../src/librustc_error_codes/error_codes.rs";
14 println!("cargo:rerun-if-changed={}", error_codes_path);
15 let file = fs::read_to_string(error_codes_path)
17 .replace(": include_str!(\"./error_codes/", ": include_str!(\"./");
18 let contents = format!("(|| {{\n{}\n}})()", file);
19 fs::write(&out_dir.join("all_error_codes.rs"), &contents).unwrap();
21 // We copy the md files as well to the target directory.
22 for entry in WalkDir::new("../../../src/librustc_error_codes/error_codes") {
23 let entry = entry.unwrap();
24 match entry.path().extension() {
25 Some(s) if s == "md" => {}
28 println!("cargo:rerun-if-changed={}", entry.path().to_str().unwrap());
29 let md_content = fs::read_to_string(entry.path()).unwrap();
30 fs::write(&out_dir.join(entry.file_name()), &md_content).unwrap();
33 let mut all = String::new();
36 fn register_all() -> Vec<(&'static str, Option<&'static str>)> {
37 let mut long_codes: Vec<(&'static str, Option<&'static str>)> = Vec::new();
38 macro_rules! register_diagnostics {
39 ($($ecode:ident: $message:expr,)*) => (
40 register_diagnostics!{$($ecode:$message,)* ;}
43 ($($ecode:ident: $message:expr,)* ; $($code:ident,)*) => (
46 (stringify!($ecode), Some($message)),
52 ].iter().cloned().map(|s| (s, None)).collect::<Vec<_>>());}
58 all.push_str(r#"include!(concat!(env!("OUT_DIR"), "/all_error_codes.rs"));"#);
59 all.push_str("\nlong_codes\n");
62 fs::write(&dest, all).unwrap();