From 577fc0845718ed8ad5bebf02a277c0579a817f77 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Fri, 17 May 2024 17:58:38 +0200
Subject: wanda: restructure source layout

---
 source/lib/include/wanda/meta/deferred_failure.hpp | 21 ++++++++++
 source/lib/include/wanda/meta/keyed.hpp            | 28 +++++++++++++
 source/lib/include/wanda/meta/type_wrapper.hpp     | 47 ++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 source/lib/include/wanda/meta/deferred_failure.hpp
 create mode 100644 source/lib/include/wanda/meta/keyed.hpp
 create mode 100644 source/lib/include/wanda/meta/type_wrapper.hpp

(limited to 'source/lib/include/wanda/meta')

diff --git a/source/lib/include/wanda/meta/deferred_failure.hpp b/source/lib/include/wanda/meta/deferred_failure.hpp
new file mode 100644
index 0000000..f74d923
--- /dev/null
+++ b/source/lib/include/wanda/meta/deferred_failure.hpp
@@ -0,0 +1,21 @@
+/**
+ * @file   deferred_failure.hpp
+ * @author Felix Morgner (felix.morgner@gmail.com)
+ * @since  1.0.0
+ */
+
+#ifndef WANDA_META_DEFERRED_FAILURE_HPP
+#define WANDA_META_DEFERRED_FAILURE_HPP
+
+#include <type_traits>
+
+namespace wanda::meta
+{
+  /**
+   * @brief A helper type to defer static_assert failures
+   */
+  template<typename...>
+  using deferred_failure = std::false_type;
+}  // namespace wanda::meta
+
+#endif
\ No newline at end of file
diff --git a/source/lib/include/wanda/meta/keyed.hpp b/source/lib/include/wanda/meta/keyed.hpp
new file mode 100644
index 0000000..a09d1eb
--- /dev/null
+++ b/source/lib/include/wanda/meta/keyed.hpp
@@ -0,0 +1,28 @@
+/**
+ * @file   keyed.hpp
+ * @author Felix Morgner (felix.morgner@gmail.com)
+ * @since  1.0.0
+ */
+
+#ifndef WANDA_META_KEYED_HPP
+#define WANDA_META_KEYED_HPP
+
+namespace wanda::meta
+{
+  /**
+   * @brief A tag type to prevent construction of a type without a factory
+   */
+  template<typename Derived>
+  struct keyed
+  {
+  protected:
+    struct key
+    {
+    };
+
+    explicit keyed(key) {}
+  };
+
+}  // namespace wanda::meta
+
+#endif
\ No newline at end of file
diff --git a/source/lib/include/wanda/meta/type_wrapper.hpp b/source/lib/include/wanda/meta/type_wrapper.hpp
new file mode 100644
index 0000000..1d34c09
--- /dev/null
+++ b/source/lib/include/wanda/meta/type_wrapper.hpp
@@ -0,0 +1,47 @@
+/**
+ * @file   type_wrapper.hpp
+ * @author Felix Morgner (felix.morgner@gmail.com)
+ * @since  1.0.0
+ */
+
+#ifndef WANDA_META_TYPE_WRAPPER_HPP
+#define WANDA_META_TYPE_WRAPPER_HPP
+
+#include <utility>
+
+namespace wanda::meta
+{
+  /**
+   * @brief A type to create a distinct type based on an existing type
+   *
+   * @tparam InnerType The type to wrap
+   * @tparam TagType   A tag type to identify the distinct type
+   */
+  template<typename InnerType, typename TagType>
+  struct type_wrapper
+  {
+    /**
+     * @brief Construct a new type wrapper object
+     */
+    explicit type_wrapper(InnerType value)
+        : m_value{std::move(value)}
+    {
+    }
+
+    /**
+     * @brief Retrieve the wrapped value with its original type
+     */
+    constexpr explicit operator InnerType const &() const { return get(); }
+
+    /**
+     * @brief Retrieve the wrapped value with its original type
+     */
+    constexpr InnerType const & get() const { return m_value; }
+
+  private:
+    InnerType m_value;
+  };
+
+}  // namespace wanda::meta
+
+#endif
\ No newline at end of file
-- 
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