8cbfb26383
This commit refactors `SourceMap` and most importantly `RealFileName` to make it self-contained in order to achieve cross-compiler consistency. This is achieved: - by making `RealFileName` immutable - by only having `SourceMap::to_real_filename` create `RealFileName` - by also making `RealFileName` holds it's working directory, it's embeddable name and the remapped scopes - by making most `FileName` and `RealFileName` methods take a scope as an argument In order for `SourceMap::to_real_filename` to know which scopes to apply `FilePathMapping` now takes the current remapping scopes to apply, which makes `FileNameDisplayPreference` and company useless and are removed. The scopes type `RemapPathScopeComponents` was moved from `rustc_session::config` to `rustc_span`. The previous system for scoping the local/remapped filenames `RemapFileNameExt::for_scope` is no longer useful as it's replaced by methods on `FileName` and `RealFileName`. |
||
|---|---|---|
| .. | ||
| src | ||
| Cargo.toml | ||
| messages.ftl | ||
| 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.