59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
#pragma once
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#include "component_interface.hpp"
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class component_loader final
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{
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public:
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class premature_shutdown_trigger final : public std::exception
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{
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[[nodiscard]] const char* what() const noexcept override
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{
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return "Premature shutdown requested";
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}
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};
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template <typename T>
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class installer final
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{
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static_assert(std::is_base_of_v<component_interface, T>, "component has invalid base class");
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public:
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installer()
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{
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register_component(std::make_unique<T>());
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}
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};
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template <typename T>
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static T* get()
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{
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for (const auto& component_ : get_components())
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{
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if (typeid(*component_.get()) == typeid(T))
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{
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return reinterpret_cast<T*>(component_.get());
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}
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}
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return nullptr;
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}
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static void register_component(std::unique_ptr<component_interface>&& component);
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static bool pre_start();
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static void post_unpack();
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static void pre_destroy();
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static void clean();
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static void trigger_premature_shutdown();
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private:
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static std::vector<std::unique_ptr<component_interface>>& get_components();
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};
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#define REGISTER_COMPONENT(name) \
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namespace \
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{ \
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static component_loader::installer<name> __component; \
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}
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