bjoernager/rust
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Add fix suggestions for E0199, E0200, and E0569

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This commit is contained in:
Nicolas Barrios 2022-10-19 22:06:50 -04:00
parent dcb3761150
commit 770538ef9b
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GPG key ID: C1DDB7A429E915F7
7 changed files with 84 additions and 0 deletions
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30
compiler/rustc_hir_analysis/src/coherence/unsafety.rs
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@ -26,6 +26,12 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
"implementing the trait `{}` is not unsafe",
trait_ref.print_only_trait_path()
)
.span_suggestion_verbose(
item.span.with_hi(item.span.lo() + rustc_span::BytePos(7)),
"remove `unsafe` from this trait implementation",
"",
rustc_errors::Applicability::MachineApplicable,
)
.emit();
}
@ -37,6 +43,18 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
"the trait `{}` requires an `unsafe impl` declaration",
trait_ref.print_only_trait_path()
)
.note(format!(
"the trait `{}` enforces invariants that the compiler can't check. \
Review the trait documentation and make sure this implementation \
upholds those invariants before adding the `unsafe` keyword",
trait_ref.print_only_trait_path()
))
.span_suggestion_verbose(
item.span.shrink_to_lo(),
"add `unsafe` to this trait implementation",
"unsafe ",
rustc_errors::Applicability::MaybeIncorrect,
)
.emit();
}
@ -48,6 +66,18 @@ pub(super) fn check_item(tcx: TyCtxt<'_>, def_id: LocalDefId) {
"requires an `unsafe impl` declaration due to `#[{}]` attribute",
attr_name
)
.note(format!(
"the trait `{}` enforces invariants that the compiler can't check. \
Review the trait documentation and make sure this implementation \
upholds those invariants before adding the `unsafe` keyword",
trait_ref.print_only_trait_path()
))
.span_suggestion_verbose(
item.span.shrink_to_lo(),
"add `unsafe` to this trait implementation",
"unsafe ",
rustc_errors::Applicability::MaybeIncorrect,
)
.emit();
}