diff options
| -rw-r--r-- | compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs | 6 | ||||
| -rw-r--r-- | tests/ui/traits/suggest-remove-deref-issue-140166.stderr | 6 |
2 files changed, 7 insertions, 5 deletions
diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index de251ae2893..8801397b775 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -1516,6 +1516,12 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } else { expr.span.with_hi(expr.span.lo() + BytePos(1)) }; + + match self.tcx.sess.source_map().span_to_snippet(span) { + Ok(snippet) if snippet.starts_with("&") => {} + _ => break 'outer, + } + suggestions.push((span, String::new())); let ty::Ref(_, inner_ty, _) = suggested_ty.kind() else { diff --git a/tests/ui/traits/suggest-remove-deref-issue-140166.stderr b/tests/ui/traits/suggest-remove-deref-issue-140166.stderr index 8bdcf5981a5..90f24d86d53 100644 --- a/tests/ui/traits/suggest-remove-deref-issue-140166.stderr +++ b/tests/ui/traits/suggest-remove-deref-issue-140166.stderr @@ -6,6 +6,7 @@ LL | format_args!("{:?}", FlatMap(&Chars)); | | | required by a bound introduced by this call | + = help: the trait `Trait` is implemented for `Chars` note: required for `FlatMap<&Chars>` to implement `Debug` --> $DIR/suggest-remove-deref-issue-140166.rs:7:16 | @@ -15,11 +16,6 @@ LL | impl<T: Trait> std::fmt::Debug for FlatMap<T> { | unsatisfied trait bound introduced here note: required by a bound in `core::fmt::rt::Argument::<'_>::new_debug` --> $SRC_DIR/core/src/fmt/rt.rs:LL:COL -help: consider removing the leading `&`-reference - | -LL - format_args!("{:?}", FlatMap(&Chars)); -LL + format_args!("{:?}", latMap(&Chars)); - | error: aborting due to 1 previous error |