Point at return expression for RPIT-related error

2022-06-06 23:20:13 -07:00
parent dc80ca78b6
commit 52409c4c90
14 changed files with 97 additions and 5 deletions
--- a/compiler/rustc_middle/src/traits/mod.rs
+++ b/compiler/rustc_middle/src/traits/mod.rs
@@ -387,6 +387,9 @@ pub enum ObligationCauseCode<'tcx> {
    /// Return type of this function
    ReturnType,

+    /// Opaque return type of this function
+    OpaqueReturnType(Option<(Ty<'tcx>, Span)>),
+
    /// Block implicit return
    BlockTailExpression(hir::HirId),