bjoernager/rust
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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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13
compiler/rustc_session/src/parse.rs
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@ -15,7 +15,8 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexMap, FxIndexSet};
use rustc_data_structures::sync::{AppendOnlyVec, Lock, Lrc};
use rustc_errors::{emitter::SilentEmitter, DiagCtxt};
use rustc_errors::{
fallback_fluent_bundle, Diagnostic, DiagnosticBuilder, DiagnosticMessage, MultiSpan, StashKey,
fallback_fluent_bundle, DiagnosticBuilder, DiagnosticMessage, EmissionGuarantee, MultiSpan,
StashKey,
};
use rustc_feature::{find_feature_issue, GateIssue, UnstableFeatures};
use rustc_span::edition::Edition;
@ -156,7 +157,11 @@ pub fn feature_warn_issue(
}
/// Adds the diagnostics for a feature to an existing error.
pub fn add_feature_diagnostics(err: &mut Diagnostic, sess: &Session, feature: Symbol) {
pub fn add_feature_diagnostics<G: EmissionGuarantee>(
err: &mut DiagnosticBuilder<'_, G>,
sess: &Session,
feature: Symbol,
) {
add_feature_diagnostics_for_issue(err, sess, feature, GateIssue::Language, false);
}
@ -165,8 +170,8 @@ pub fn add_feature_diagnostics(err: &mut Diagnostic, sess: &Session, feature: Sy
/// This variant allows you to control whether it is a library or language feature.
/// Almost always, you want to use this for a language feature. If so, prefer
/// `add_feature_diagnostics`.
pub fn add_feature_diagnostics_for_issue(
err: &mut Diagnostic,
pub fn add_feature_diagnostics_for_issue<G: EmissionGuarantee>(
err: &mut DiagnosticBuilder<'_, G>,
sess: &Session,
feature: Symbol,
issue: GateIssue,