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-rw-r--r--compiler/rustc_metadata/src/errors.rs7
1 files changed, 7 insertions, 0 deletions
diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs
index b6c5619ec18..cefc6498f68 100644
--- a/compiler/rustc_metadata/src/errors.rs
+++ b/compiler/rustc_metadata/src/errors.rs
@@ -732,3 +732,10 @@ pub struct ImportNameTypeRaw {
     #[primary_span]
     pub span: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(metadata_wasm_c_abi)]
+pub(crate) struct WasmCAbi {
+    #[primary_span]
+    pub span: Span,
+}