1 files changed, 10 insertions, 0 deletions
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index b8545139cec..63c0d58bc9c 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -39,6 +39,16 @@ pub trait IntoDiagnosticArg {
     fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static>;
 }
 
+impl IntoDiagnosticArg for bool {
+    fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
+        if self {
+            DiagnosticArgValue::Str(Cow::Borrowed("true"))
+        } else {
+            DiagnosticArgValue::Str(Cow::Borrowed("false"))
+        }
+    }
+}
+
 impl IntoDiagnosticArg for String {
     fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
         DiagnosticArgValue::Str(Cow::Owned(self))