8eecd1d0fd
Allows the functions that only query or retrieve from the underlying map to be able to handle keys in various string formats. This means we can make these bits of the API non-allocating by default.
54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
// Copyright 2017 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <functional>
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#include <initializer_list>
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#include <string>
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#include <unordered_map>
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namespace Common {
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/// A string-based key-value container supporting serializing to and deserializing from a string
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class ParamPackage {
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public:
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struct DataHash final {
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using is_transparent = void;
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[[nodiscard]] size_t operator()(std::string_view view) const noexcept {
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return std::hash<std::string_view>{}(view);
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}
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[[nodiscard]] size_t operator()(const std::string& str) const noexcept {
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return std::hash<std::string>{}(str);
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}
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};
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using DataType = std::unordered_map<std::string, std::string, DataHash, std::equal_to<>>;
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ParamPackage() = default;
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explicit ParamPackage(const std::string& serialized);
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ParamPackage(std::initializer_list<DataType::value_type> list);
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ParamPackage(const ParamPackage& other) = default;
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ParamPackage(ParamPackage&& other) noexcept = default;
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ParamPackage& operator=(const ParamPackage& other) = default;
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ParamPackage& operator=(ParamPackage&& other) = default;
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[[nodiscard]] std::string Serialize() const;
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[[nodiscard]] std::string Get(std::string_view key, const std::string& default_value) const;
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[[nodiscard]] int Get(std::string_view key, int default_value) const;
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[[nodiscard]] float Get(std::string_view key, float default_value) const;
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void Set(const std::string& key, std::string value);
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void Set(const std::string& key, int value);
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void Set(const std::string& key, float value);
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[[nodiscard]] bool Has(std::string_view key) const;
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void Erase(const std::string& key);
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void Clear();
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private:
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DataType data;
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};
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} // namespace Common
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