From 19770d5940d2f772532658d0c12ed64709681a55 Mon Sep 17 00:00:00 2001
From: Oliver Reiche <oliver.reiche@huawei.com>
Date: Tue, 14 Jun 2022 09:57:50 +0200
Subject: Improve move semantics with smart pointers

---
 src/buildtool/build_engine/expression/expression_ptr.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/buildtool/build_engine/expression/expression_ptr.hpp')

diff --git a/src/buildtool/build_engine/expression/expression_ptr.hpp b/src/buildtool/build_engine/expression/expression_ptr.hpp
index aeca6287..d7e05923 100644
--- a/src/buildtool/build_engine/expression/expression_ptr.hpp
+++ b/src/buildtool/build_engine/expression/expression_ptr.hpp
@@ -34,8 +34,9 @@ class ExpressionPtr {
     auto operator=(ExpressionPtr&&) noexcept -> ExpressionPtr& = default;
 
     explicit operator bool() const { return static_cast<bool>(ptr_); }
+    [[nodiscard]] auto operator*() & -> Expression& { return *ptr_; }
     [[nodiscard]] auto operator*() const& -> Expression const& { return *ptr_; }
-    [[nodiscard]] auto operator*() && -> Expression;
+    [[nodiscard]] auto operator*() && -> Expression = delete;
     [[nodiscard]] auto operator->() const& -> Expression const* {
         return ptr_.get();
     }
-- 
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