about summary refs log tree commit diff
path: root/compiler/rustc_pattern_analysis/src/lib.rs
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/rustc_pattern_analysis/src/lib.rs')
-rw-r--r--compiler/rustc_pattern_analysis/src/lib.rs5
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/rustc_pattern_analysis/src/lib.rs b/compiler/rustc_pattern_analysis/src/lib.rs
index 9f758dd8263..a1c9b157666 100644
--- a/compiler/rustc_pattern_analysis/src/lib.rs
+++ b/compiler/rustc_pattern_analysis/src/lib.rs
@@ -58,9 +58,8 @@ pub trait TypeCx: Sized + fmt::Debug {
     type StrLit: Clone + PartialEq + fmt::Debug;
     /// Extra data to store in a match arm.
     type ArmData: Copy + Clone + fmt::Debug;
-    /// Extra data to store in a pattern. `Default` needed when we create fictitious wildcard
-    /// patterns during analysis.
-    type PatData: Clone + Default;
+    /// Extra data to store in a pattern.
+    type PatData: Clone;
 
     /// FIXME(Nadrieril): `Cx` should only give us revealed types.
     fn reveal_opaque_ty(&self, ty: Self::Ty) -> Self::Ty;