1 files changed, 34 insertions, 0 deletions
diff --git a/compiler/rustc_symbol_mangling/src/errors.rs b/compiler/rustc_symbol_mangling/src/errors.rs
new file mode 100644
index 000000000..664d2543f
--- /dev/null
+++ b/compiler/rustc_symbol_mangling/src/errors.rs
@@ -0,0 +1,34 @@
+//! Errors emitted by symbol_mangling.
+
+use rustc_errors::{DiagnosticArgValue, IntoDiagnosticArg};
+use rustc_macros::SessionDiagnostic;
+use rustc_span::Span;
+
+#[derive(SessionDiagnostic)]
+#[diag(symbol_mangling::test_output)]
+pub struct TestOutput {
+    #[primary_span]
+    pub span: Span,
+    pub kind: Kind,
+    pub content: String,
+}
+
+pub enum Kind {
+    SymbolName,
+    Demangling,
+    DemanglingAlt,
+    DefPath,
+}
+
+impl IntoDiagnosticArg for Kind {
+    fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
+        let kind = match self {
+            Kind::SymbolName => "symbol-name",
+            Kind::Demangling => "demangling",
+            Kind::DemanglingAlt => "demangling-alt",
+            Kind::DefPath => "def-path",
+        }
+        .into();
+        DiagnosticArgValue::Str(kind)
+    }
+}