rust/compiler/rustc_driver_impl
Matthias Krüger fe5403f517
Rollup merge of #130236 - yaahc:unstable-feature-usage, r=estebank
unstable feature usage metrics

example output

```
test-lib on  master [?] is 📦 v0.1.0 via 🦀 v1.80.1
❯ cat src/lib.rs
───────┬───────────────────────────────────────────────────────
       │ File: src/lib.rs
───────┼───────────────────────────────────────────────────────
   1   │ #![feature(unix_set_mark)]
   2   │ pub fn add(left: u64, right: u64) -> u64 {
   3   │     left + right
   4   │ }
   5   │
   6   │ #[cfg(test)]
   7   │ mod tests {
   8   │     use super::*;
   9   │
  10   │     #[test]
  11   │     fn it_works() {
  12   │         let result = add(2, 2);
  13   │         assert_eq!(result, 4);
  14   │     }
  15   │ }
───────┴───────────────────────────────────────────────────────

test-lib on  master [?] is 📦 v0.1.0 via 🦀 v1.80.1
❯ cargo +stage1 rustc -- -Zmetrics-dir=$PWD/metrics
   Compiling test-lib v0.1.0 (/home/yaahc/tmp/test-lib)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s

test-lib on  master [?] is 📦 v0.1.0 via 🦀 v1.80.1
❯ cat metrics/unstable_feature_usage.json
───────┬─────────────────────────────────────────────────────────────────────
       │ File: metrics/unstable_feature_usage.json
───────┼─────────────────────────────────────────────────────────────────────
   1   │ {"lib_features":[{"symbol":"unix_set_mark"}],"lang_features":[]}
   ```

   related to https://github.com/rust-lang/rust/issues/129485
2024-11-21 11:58:36 +01:00
..
src Rollup merge of #130236 - yaahc:unstable-feature-usage, r=estebank 2024-11-21 11:58:36 +01:00
Cargo.toml Auto merge of #132282 - Noratrieb:it-is-the-end-of-serial, r=cjgillot 2024-11-12 15:14:56 +00:00
messages.ftl unstable feature usage metrics 2024-11-20 11:31:40 -08:00
README.md Update out-dated link 2024-10-06 18:08:28 +08:00

The driver crate is effectively the "main" function for the rust compiler. It orchestrates the compilation process and "knits together" the code from the other crates within rustc. This crate itself does not contain any of the "main logic" of the compiler (though it does have some code related to pretty printing or other minor compiler options).

For more information about how the driver works, see the rustc dev guide.