rust/compiler/rustc_driver_impl
Yuki Okushi e3eb6a87bf
Rollup merge of #105354 - BlackHoleFox:apple-deployment-printer, r=oli-obk
Add deployment-target --print flag for Apple targets

This is very useful for crates that need to know what the Apple OS deployment target is for their build scripts or inside of a build environment. Right now, the defaults just get copy/pasted around the ecosystem since they've been stable for so long. But with #104385 in progress, that won't be true anymore and everything will need to move. Ideally whenever it happens again, this could be less painful as everything can ask the compiler what its default is instead.

To show examples of the copy/paste proliferation, here's some crates and/or apps that do:
- [cc](https://github.com/rust-lang/cc-rs/pull/708/files), Soon
-  [mac-notification-sys](https://github.com/h4llow3En/mac-notification-sys/pull/46/files#diff-d0d98998092552a1d3259338c2c71e118a5b8343dd4703c0c7f552ada7f9cb42R10-R12)
- [PyO3](ccb02d1aa1/src/target.rs (L755-L758))
- [Anki](613b5c1034/build/runner/src/bundle/artifacts.rs (L49-L54))
- [jsc-rs](3776726756/xtask/src/build.rs (L402-L405))
... and probably more that a simple GitHub codesearch didn't see
2023-05-08 19:41:48 +09:00
..
src Rollup merge of #105354 - BlackHoleFox:apple-deployment-printer, r=oli-obk 2023-05-08 19:41:48 +09:00
Cargo.toml Add rustc_fluent_macro to decouple fluent from rustc_macros 2023-04-18 18:56:22 +00:00
messages.ftl Simplify message paths 2023-03-11 22:51:57 +01:00
README.md

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.