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Prefer DiagnosticBuilder over Diagnostic in diagnostic modifiers.

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There are lots of functions that modify a diagnostic. This can be via a
`&mut Diagnostic` or a `&mut DiagnosticBuilder`, because the latter type
wraps the former and impls `DerefMut`.

This commit converts all the `&mut Diagnostic` occurrences to `&mut
DiagnosticBuilder`. This is a step towards greatly simplifying
`Diagnostic`. Some of the relevant function are made generic, because
they deal with both errors and warnings. No function bodies are changed,
because all the modifier methods are available on both `Diagnostic` and
`DiagnosticBuilder`.
This commit is contained in:
Nicholas Nethercote 2024-02-01 10:13:24 +11:00
parent 8b21296b5d
commit b18f3e11fa
66 changed files with 536 additions and 454 deletions
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2
compiler/rustc_hir_analysis/src/check/mod.rs
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@ -78,7 +78,7 @@ use std::num::NonZero;
use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
use rustc_errors::ErrorGuaranteed;
use rustc_errors::{pluralize, struct_span_code_err, Diagnostic, DiagnosticBuilder};
use rustc_errors::{pluralize, struct_span_code_err, DiagnosticBuilder};
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_hir::intravisit::Visitor;
use rustc_index::bit_set::BitSet;