From 5068d34c08f951a7ea6257d305a1627b09a95817 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 19:44:55 +0200
Subject: Adding upstream version 0.11.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/base/injector.bind.hh | 173 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 src/base/injector.bind.hh

(limited to 'src/base/injector.bind.hh')

diff --git a/src/base/injector.bind.hh b/src/base/injector.bind.hh
new file mode 100644
index 0000000..f240cd1
--- /dev/null
+++ b/src/base/injector.bind.hh
@@ -0,0 +1,173 @@
+/**
+ * Copyright (c) 2021, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @file injector.bind.hh
+ */
+
+#ifndef lnav_injector_bind_hh
+#define lnav_injector_bind_hh
+
+#include "injector.hh"
+
+namespace injector {
+
+namespace details {
+
+template<typename I, typename R, typename... Args>
+std::function<std::shared_ptr<I>()>
+create_factory(R (*)(Args...))
+{
+    return []() { return std::make_shared<I>(::injector::get<Args>()...); };
+}
+
+template<typename I, std::enable_if_t<has_injectable<I>::value, bool> = true>
+std::function<std::shared_ptr<I>()>
+create_factory()
+{
+    typename I::injectable* i = nullptr;
+
+    return create_factory<I>(i);
+}
+
+template<typename I, std::enable_if_t<!has_injectable<I>::value, bool> = true>
+std::function<std::shared_ptr<I>()>
+create_factory() noexcept
+{
+    return []() { return std::make_shared<I>(); };
+}
+
+}  // namespace details
+
+template<typename T, typename... Annotations>
+struct bind : singleton_storage<T, Annotations...> {
+    template<typename I = T,
+             std::enable_if_t<has_injectable<I>::value, bool> = true>
+    static bool to_singleton() noexcept
+    {
+        typename I::injectable* i = nullptr;
+        singleton_storage<T, Annotations...>::ss_owner
+            = create_from_injectable<I>(i)();
+        singleton_storage<T, Annotations...>::ss_data
+            = singleton_storage<T, Annotations...>::ss_owner.get();
+        singleton_storage<T, Annotations...>::ss_scope = scope::singleton;
+
+        return true;
+    }
+
+    template<typename I = T,
+             std::enable_if_t<!has_injectable<I>::value, bool> = true>
+    static bool to_singleton() noexcept
+    {
+        singleton_storage<T, Annotations...>::ss_owner = std::make_shared<T>();
+        singleton_storage<T, Annotations...>::ss_data
+            = singleton_storage<T, Annotations...>::ss_owner.get();
+        singleton_storage<T, Annotations...>::ss_scope = scope::singleton;
+        return true;
+    }
+
+    struct lifetime {
+        ~lifetime()
+        {
+            singleton_storage<T, Annotations...>::ss_owner = nullptr;
+            singleton_storage<T, Annotations...>::ss_data = nullptr;
+        }
+    };
+
+    template<typename I = T,
+             std::enable_if_t<has_injectable<I>::value, bool> = true>
+    static lifetime to_scoped_singleton() noexcept
+    {
+        typename I::injectable* i = nullptr;
+        singleton_storage<T, Annotations...>::ss_owner
+            = create_from_injectable<I>(i)();
+        singleton_storage<T, Annotations...>::ss_data
+            = singleton_storage<T, Annotations...>::ss_owner.get();
+        singleton_storage<T, Annotations...>::ss_scope = scope::singleton;
+
+        return {};
+    }
+
+    template<typename... Args>
+    static bool to_instance(T* (*f)(Args...)) noexcept
+    {
+        singleton_storage<T, Annotations...>::ss_data
+            = f(::injector::get<Args>()...);
+        singleton_storage<T, Annotations...>::ss_scope = scope::singleton;
+        return true;
+    }
+
+    static bool to_instance(T* data) noexcept
+    {
+        singleton_storage<T, Annotations...>::ss_data = data;
+        singleton_storage<T, Annotations...>::ss_scope = scope::singleton;
+        return true;
+    }
+
+    template<typename I>
+    static bool to() noexcept
+    {
+        singleton_storage<T, Annotations...>::ss_factory
+            = details::create_factory<I>();
+        singleton_storage<T, Annotations...>::ss_scope = scope::none;
+        return true;
+    }
+};
+
+template<typename T>
+struct bind_multiple : multiple_storage<T> {
+    bind_multiple() noexcept = default;
+
+    template<typename I>
+    bind_multiple& add() noexcept
+    {
+        multiple_storage<T>::get_factories()[typeid(I).name()]
+            = details::create_factory<I>();
+
+        return *this;
+    }
+
+    template<typename I, typename... Annotations>
+    bind_multiple& add_singleton() noexcept
+    {
+        auto factory = details::create_factory<I>();
+        auto single = factory();
+
+        if (sizeof...(Annotations) > 0) {
+            bind<T, Annotations...>::to_instance(single.get());
+        }
+        bind<I, Annotations...>::to_instance(single.get());
+        multiple_storage<T>::get_factories()[typeid(I).name()]
+            = [single]() { return single; };
+
+        return *this;
+    }
+};
+
+}  // namespace injector
+
+#endif
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