rust/compiler/rustc_driver_impl
Tamir Duberstein 7654d4b398
compiler: always use var_os("RUST_BACKTRACE")
There are 3 instances of var(...) and 3 instances of var_os(...); the
latter avoids an appearance of unhandled error, so use it everywhere.
2023-10-06 08:53:23 -04:00
..

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.