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-rw-r--r--gcc/rust/expand/rust-derive.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/rust/expand/rust-derive.h b/gcc/rust/expand/rust-derive.h
index 48f6594..796c23f 100644
--- a/gcc/rust/expand/rust-derive.h
+++ b/gcc/rust/expand/rust-derive.h
@@ -130,6 +130,7 @@ private:
virtual void visit (RangeFromToInclExpr &expr) override final{};
virtual void visit (RangeToInclExpr &expr) override final{};
virtual void visit (ReturnExpr &expr) override final{};
+ virtual void visit (BoxExpr &expr) override final{};
virtual void visit (UnsafeBlockExpr &expr) override final{};
virtual void visit (LoopExpr &expr) override final{};
virtual void visit (WhileLoopExpr &expr) override final{};