Actually create ranged int types in the type system.

1 files changed, 14 insertions, 0 deletions

diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs
index 28c86d8019e..20e4110e137 100644
--- a/compiler/rustc_hir_analysis/src/variance/constraints.rs
+++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs
@@ -249,6 +249,20 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> {
                 self.add_constraints_from_ty(current, typ, variance);
             }
 
+            ty::Pat(typ, pat) => {
+                match *pat {
+                    ty::PatternKind::Range { start, end, include_end: _ } => {
+                        if let Some(start) = start {
+                            self.add_constraints_from_const(current, start, variance);
+                        }
+                        if let Some(end) = end {
+                            self.add_constraints_from_const(current, end, variance);
+                        }
+                    }
+                }
+                self.add_constraints_from_ty(current, typ, variance);
+            }
+
             ty::Slice(typ) => {
                 self.add_constraints_from_ty(current, typ, variance);
             }