86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Core module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_CORE_PARAMETERFILE_HPP
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#define NAZARA_CORE_PARAMETERFILE_HPP
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#include <NazaraUtils/Prerequisites.hpp>
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#include <Nazara/Core/Config.hpp>
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#include <NazaraUtils/FixedVector.hpp>
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#include <NazaraUtils/FunctionRef.hpp>
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#include <NazaraUtils/FunctionTraits.hpp>
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#include <NazaraUtils/TypeList.hpp>
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#include <functional>
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#include <string>
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#include <type_traits>
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namespace Nz
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{
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class Stream;
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class NAZARA_CORE_API ParameterFile
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{
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public:
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inline ParameterFile(Stream& stream);
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ParameterFile(const ParameterFile&) = delete;
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ParameterFile(ParameterFile&&) = delete;
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~ParameterFile() = default;
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template<typename... Args> void Block(Args&&... args);
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template<typename... Args> void Handle(Args&&... args);
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ParameterFile& operator=(const ParameterFile&) = delete;
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ParameterFile& operator=(ParameterFile&&) = delete;
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struct Keyword
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{
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std::string str;
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};
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struct Array_t {};
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struct OptionalBlock_t {};
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static constexpr inline Array_t Array{};
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static constexpr inline OptionalBlock_t OptionalBlock{};
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private:
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using ValueHandler = std::function<void(ParameterFile& file)>;
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struct KeyValue
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{
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std::string_view key;
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ValueHandler handler;
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};
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template<typename T> static std::string_view BuildBlockKey(T&& key);
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template<typename... Args> static ValueHandler BuildBlockHandler(ParameterFile& file, ValueHandler handler);
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template<typename T> static ValueHandler BuildBlockHandler(ParameterFile& file, T* value);
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template<typename T> static ValueHandler BuildBlockHandler(ParameterFile& file, T&& handler, std::enable_if_t<IsFunctor_v<T>>* = nullptr);
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template<typename... Args> static ValueHandler BuildBlockHandler(ParameterFile& file, FunctionRef<void(Args...)> handler);
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template<std::size_t N, typename K, typename V, typename... Rest> static void BuildKeyValues(ParameterFile& file, FixedVector<KeyValue, N>& keyValues, K&& key, V&& value, Rest&&... rest);
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template<typename V, typename... Rest> static ValueHandler GetSingleHandler(ParameterFile& file, V&& value, Rest&&... rest);
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template<typename... Args> void HandleInner(std::string_view listEnd, Args&&... args);
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template<typename T> static T ReadValue(ParameterFile& file);
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template<typename T> static constexpr bool ShouldIgnoreImpl = std::is_same_v<T, Array_t> || std::is_same_v<T, OptionalBlock_t>;
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template<typename T> static constexpr bool ShouldIgnore = ShouldIgnoreImpl<std::decay_t<std::remove_const_t<T>>>;
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bool EnsureLine(bool peek = false);
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std::string ReadKeyword(bool peek = false);
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std::string ReadString();
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std::string m_currentLine;
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Stream& m_stream;
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};
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}
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#include <Nazara/Core/ParameterFile.inl>
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#endif // NAZARA_CORE_PARAMETERFILE_HPP
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