From d9e35f9d82acbc661aca0cb5608e052434e52dc8 Mon Sep 17 00:00:00 2001
From: Klaus Aehlig <klaus.aehlig@huawei.com>
Date: Wed, 15 Jun 2022 15:45:24 +0200
Subject: expression: cache the cacheability property

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

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

diff --git a/src/buildtool/build_engine/expression/expression.hpp b/src/buildtool/build_engine/expression/expression.hpp
index 047089d2..68dddb10 100644
--- a/src/buildtool/build_engine/expression/expression.hpp
+++ b/src/buildtool/build_engine/expression/expression.hpp
@@ -242,6 +242,7 @@ class Expression {
         data_{none_t{}};
 
     AtomicValue<std::string> hash_{};
+    AtomicValue<bool> is_cachable_{};
 
     template <class T, std::size_t kIndex = 0>
     requires(IsValidType<T>()) [[nodiscard]] static consteval auto GetIndexOf()
@@ -325,6 +326,7 @@ class Expression {
     [[nodiscard]] auto TypeStringForIndex() const noexcept -> std::string;
     [[nodiscard]] auto TypeString() const noexcept -> std::string;
     [[nodiscard]] auto ComputeHash() const noexcept -> std::string;
+    [[nodiscard]] auto ComputeIsCacheable() const -> bool;
 };
 
 namespace std {
-- 
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