diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index 472086eca8f..26ba3d780d5 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -2514,6 +2514,15 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ObligationCauseCode::VariableType(hir_id) => { let parent_node = self.tcx.hir().get_parent_node(hir_id); match self.tcx.hir().find(parent_node) { + Some(Node::Local(hir::Local { ty: Some(ty), .. })) => { + err.span_suggestion_verbose( + ty.span.shrink_to_lo(), + "consider borrowing here", + "&", + Applicability::MachineApplicable, + ); + err.note("all local variables must have a statically known size"); + } Some(Node::Local(hir::Local { init: Some(hir::Expr { kind: hir::ExprKind::Index(_, _), span, .. }), .. |