67 lines
1.4 KiB
C++
67 lines
1.4 KiB
C++
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#pragma once
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#ifdef interface
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#undef interface
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#endif
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namespace steam
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{
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class interface final
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{
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public:
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class method final
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{
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public:
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void* pointer = nullptr;
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size_t param_size = 0;
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};
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class method_result final
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{
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public:
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bool valid = false;
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std::string name;
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size_t param_size = 0;
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};
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interface(void* interface_ptr);
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template<typename T, typename... Args>
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T invoke(const std::string& method_name, Args... args)
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{
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if(!this->interface_ptr_)
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{
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throw std::runtime_error("Invalid interface pointer");
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}
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const auto method_result = this->find_method(method_name);
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if(!method_result.pointer)
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{
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throw std::runtime_error("Unable to find desired method");
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}
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return reinterpret_cast<T(__thiscall*)(void*, Args ...)>(method_result.pointer)(this->interface_ptr_, args...);
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}
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template<typename T, typename... Args>
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T invoke(size_t table_entry, Args... args)
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{
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if (!this->interface_ptr_)
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{
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throw std::runtime_error("Invalid interface pointer");
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}
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return reinterpret_cast<T(__thiscall*)(void*, Args ...)>((*this->interface_ptr_)[table_entry])(this->interface_ptr_, args...);
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}
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private:
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void*** interface_ptr_;
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std::unordered_map<std::string, method> methods_;
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method find_method(const std::string& name);
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method search_method(const std::string& name);
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method_result analyze_method(const void* method_ptr);
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};
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}
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