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-rw-r--r--src/libsyntax_ext/deriving/generic/mod.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libsyntax_ext/deriving/generic/mod.rs b/src/libsyntax_ext/deriving/generic/mod.rs
index 08a7f85d14b..3660d2fe46a 100644
--- a/src/libsyntax_ext/deriving/generic/mod.rs
+++ b/src/libsyntax_ext/deriving/generic/mod.rs
@@ -830,7 +830,9 @@ fn find_repr_type_name(diagnostic: &Handler, type_attrs: &[ast::Attribute]) -> &
     for a in type_attrs {
         for r in &attr::find_repr_attrs(diagnostic, a) {
             repr_type_name = match *r {
-                attr::ReprPacked | attr::ReprSimd | attr::ReprAlign(_) => continue,
+                attr::ReprPacked | attr::ReprSimd | attr::ReprAlign(_) | attr::ReprTransparent =>
+                    continue,
+
                 attr::ReprC => "i32",
 
                 attr::ReprInt(attr::SignedInt(ast::IntTy::Isize)) => "isize",