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-rw-r--r--Source/cmConstStack.tcc62
1 files changed, 62 insertions, 0 deletions
diff --git a/Source/cmConstStack.tcc b/Source/cmConstStack.tcc
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+/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+ file Copyright.txt or https://cmake.org/licensing for details. */
+
+#include <cassert>
+#include <memory>
+#include <utility>
+
+template <typename T, typename Stack>
+struct cmConstStack<T, Stack>::Entry
+{
+ Entry(std::shared_ptr<Entry const> parent, T value)
+ : Value(std::move(value))
+ , Parent(std::move(parent))
+ {
+ }
+
+ T Value;
+ std::shared_ptr<Entry const> Parent;
+};
+
+template <typename T, typename Stack>
+cmConstStack<T, Stack>::cmConstStack() = default;
+
+template <typename T, typename Stack>
+Stack cmConstStack<T, Stack>::Push(T value) const
+{
+ return Stack(this->TopEntry, std::move(value));
+}
+
+template <typename T, typename Stack>
+Stack cmConstStack<T, Stack>::Pop() const
+{
+ assert(this->TopEntry);
+ return Stack(this->TopEntry->Parent);
+}
+
+template <typename T, typename Stack>
+T const& cmConstStack<T, Stack>::Top() const
+{
+ assert(this->TopEntry);
+ return this->TopEntry->Value;
+}
+
+template <typename T, typename Stack>
+bool cmConstStack<T, Stack>::Empty() const
+{
+ return !this->TopEntry;
+}
+
+template <typename T, typename Stack>
+cmConstStack<T, Stack>::cmConstStack(std::shared_ptr<Entry const> parent,
+ T value)
+ : TopEntry(
+ std::make_shared<Entry const>(std::move(parent), std::move(value)))
+{
+}
+
+template <typename T, typename Stack>
+cmConstStack<T, Stack>::cmConstStack(std::shared_ptr<Entry const> top)
+ : TopEntry(std::move(top))
+{
+}