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rust/compiler/rustc_hir_analysis
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Nicholas Nethercote 1f9fa2305a Tweak error counting. 
We have several methods indicating the presence of errors, lint errors,
and delayed bugs. I find it frustrating that it's very unclear which one
you should use in any particular spot. This commit attempts to instill a
basic principle of "use the least general one possible", because that
reflects reality in practice -- `has_errors` is the least general one
and has by far the most uses (esp. via `abort_if_errors`).

Specifics:
- Add some comments giving some usage guidelines.
- Prefer `has_errors` to comparing `err_count` to zero.
- Remove `has_errors_or_span_delayed_bugs` because it's a weird one: in
  the cases where we need to count delayed bugs, we should really be
  counting lint errors as well.
- Rename `is_compilation_going_to_fail` as
  `has_errors_or_lint_errors_or_span_delayed_bugs`, for consistency with
  `has_errors` and `has_errors_or_lint_errors`.
- Change a few other `has_errors_or_lint_errors` calls to `has_errors`,
  as per the "least general" principle.

This didn't turn out to be as neat as I hoped when I started, but I
think it's still an improvement.
2024-01-22 10:14:01 +11:00
..
src Tweak error counting. 2024-01-22 10:14:01 +11:00
Cargo.toml Use zip_eq to enforce that things being zipped have equal sizes 2024-01-14 20:01:12 +00:00
messages.ftl Delegation implementation: step 1 2024-01-12 14:11:16 +03:00
README.md rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00

README.md

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.