X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_middle%2Fsrc%2Fthir.rs;h=5f320708c8416944466a25137159b95386baee11;hb=9b502a4765b80f4ffaaf23ede63d8a823ad93272;hp=ac903010c8d31bba0e158db5016516709d3b5b38;hpb=b8d71fc41fe3476da0e4857294583eff271aa625;p=rust.git

diff --git a/compiler/rustc_middle/src/thir.rs b/compiler/rustc_middle/src/thir.rs
index ac903010c8d..5f320708c84 100644
--- a/compiler/rustc_middle/src/thir.rs
+++ b/compiler/rustc_middle/src/thir.rs
@@ -9,6 +9,7 @@
 //! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/thir.html
 
 use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece};
+use rustc_errors::{DiagnosticArgValue, IntoDiagnosticArg};
 use rustc_hir as hir;
 use rustc_hir::def_id::DefId;
 use rustc_hir::RangeEnd;
@@ -575,6 +576,12 @@ pub fn simple_ident(&self) -> Option<Symbol> {
     }
 }
 
+impl<'tcx> IntoDiagnosticArg for Pat<'tcx> {
+    fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
+        format!("{}", self).into_diagnostic_arg()
+    }
+}
+
 #[derive(Clone, Debug, HashStable)]
 pub struct Ascription<'tcx> {
     pub annotation: CanonicalUserTypeAnnotation<'tcx>,