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The handling of the `PpMode` variants is currently spread across three functions: `print_after_parsing`, `print_after_hir_lowering`, and `print_with_analysis`. Each one handles some of the variants. This split is primarily because `print_after_parsing` has slightly different arguments to the other two. This commit changes the structure. It merges the three functions into a single `print` function, and encapsulates the different arguments in a new enum `PrintExtra`. Benefits: - The code is a little shorter. - All the `PpMode` variants are handled in a single `match`, with no need for `unreachable!` arms. - It enables the trait removal in the subsequent commit by reducing the number of `call_with_pp_support_ast` call sites from two to one. |
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| 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.