rust/src/librustc_driver
David Tolnay 4646a88b7a
Deprecate Error::description for real
`description` has been documented as soft-deprecated since 1.27.0 (17
months ago). There is no longer any reason to call it or implement it.

This commit:

- adds #[rustc_deprecated(since = "1.41.0")] to Error::description;

- moves description (and cause, which is also deprecated) below the
  source and backtrace methods in the Error trait;

- reduces documentation of description and cause to take up much less
  vertical real estate in rustdocs, while preserving the example that
  shows how to render errors without needing to call description;

- removes the description function of all *currently unstable* Error
  impls in the standard library;

- marks #[allow(deprecated)] the description function of all *stable*
  Error impls in the standard library;

- replaces miscellaneous uses of description in example code and the
  compiler.
2019-12-24 22:39:49 -08:00
..
args.rs Deprecate Error::description for real 2019-12-24 22:39:49 -08:00
build.rs Remove licenses 2018-12-25 21:08:33 -07:00
Cargo.toml rustc: Link LLVM directly into rustc again 2019-12-11 09:50:11 -05:00
lib.rs Format the world 2019-12-22 17:42:47 -05:00
pretty.rs Format the world 2019-12-22 17:42:47 -05:00
README.md rustc-guide has moved 2018-11-26 15:03:13 -06:00

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 guide.