849 lines
19 KiB
C++
849 lines
19 KiB
C++
#include <glaze/glaze.hpp>
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#include <variant>
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#include <map>
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#include <vector>
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#include <string>
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#include <cstdint>
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#include <optional>
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#include <type_traits>
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using integer = std::int32_t;
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using uinteger = std::uint32_t;
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using decimal = double;
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using boolean = bool;
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using string = std::string;
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// 前向声明
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struct LSPAny;
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using LSPObject = std::map<string, LSPAny>;
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using LSPArray = std::vector<LSPAny>;
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using LSPAnyVariant = std::variant<
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LSPObject,
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LSPArray,
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string,
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decimal, // 放在前面，优先匹配数字
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boolean,
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std::nullptr_t>;
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struct LSPAny
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{
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LSPAnyVariant value;
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// 默认构造函数
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LSPAny() :
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value(nullptr) {}
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// 拷贝和移动构造函数
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LSPAny(const LSPAny& other) :
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value(other.value) {}
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LSPAny(LSPAny&& other) noexcept :
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value(std::move(other.value)) {}
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// 针对每种支持的类型的构造函数
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LSPAny(const std::map<string, LSPAny>& val) :
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value(val) {}
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LSPAny(std::map<string, LSPAny>&& val) :
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value(std::move(val)) {}
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LSPAny(const std::vector<LSPAny>& val) :
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value(val) {}
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LSPAny(std::vector<LSPAny>&& val) :
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value(std::move(val)) {}
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LSPAny(const string& val) :
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value(val) {}
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LSPAny(string&& val) :
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value(std::move(val)) {}
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LSPAny(const char* val) :
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value(string(val)) {}
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// 所有数字类型都转换为 decimal
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LSPAny(int val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(long val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(long long val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(unsigned int val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(unsigned long val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(unsigned long long val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(float val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(double val) :
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value(val) {}
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LSPAny(long double val) :
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value(static_cast<decimal>(val)) {}
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LSPAny(boolean val) :
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value(val) {}
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LSPAny(std::nullptr_t) :
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value(nullptr) {}
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// 赋值操作符
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LSPAny& operator=(const LSPAny& other)
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{
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value = other.value;
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return *this;
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}
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LSPAny& operator=(LSPAny&& other) noexcept
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{
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value = std::move(other.value);
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return *this;
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}
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// 针对每种支持的类型的赋值操作符
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LSPAny& operator=(const std::map<string, LSPAny>& val)
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{
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value = val;
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return *this;
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}
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LSPAny& operator=(std::map<string, LSPAny>&& val)
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{
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value = std::move(val);
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return *this;
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}
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LSPAny& operator=(const std::vector<LSPAny>& val)
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{
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value = val;
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return *this;
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}
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LSPAny& operator=(std::vector<LSPAny>&& val)
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{
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value = std::move(val);
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return *this;
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}
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LSPAny& operator=(const string& val)
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{
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value = val;
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return *this;
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}
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LSPAny& operator=(string&& val)
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{
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value = std::move(val);
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return *this;
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}
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LSPAny& operator=(const char* val)
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{
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value = string(val);
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return *this;
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}
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// 所有数字类型都转换为 decimal
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LSPAny& operator=(int val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(long val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(long long val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(unsigned int val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(unsigned long val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(unsigned long long val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(float val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(double val)
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{
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value = val;
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return *this;
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}
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LSPAny& operator=(long double val)
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{
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value = static_cast<decimal>(val);
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return *this;
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}
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LSPAny& operator=(boolean val)
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{
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value = val;
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return *this;
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}
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LSPAny& operator=(std::nullptr_t)
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{
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value = nullptr;
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return *this;
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}
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// 类型检查辅助函数
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template<typename T>
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bool is() const
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{
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return std::holds_alternative<T>(value);
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}
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template<typename T>
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T& get()
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{
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return std::get<T>(value);
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}
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template<typename T>
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const T& get() const
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{
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return std::get<T>(value);
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}
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// 访问操作符
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template<typename Visitor>
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auto visit(Visitor&& visitor) const
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{
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return std::visit(std::forward<Visitor>(visitor), value);
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}
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template<typename Visitor>
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auto visit(Visitor&& visitor)
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{
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return std::visit(std::forward<Visitor>(visitor), value);
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}
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};
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// glaze 自动支持 std::variant，无需额外配置
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namespace glz
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{
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template<>
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struct meta<LSPAny>
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{
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using T = LSPAny;
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static constexpr auto value = &T::value;
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};
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}
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// ===== 简单清晰的转换模板 =====
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// 转换工具类
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struct LSPConvert
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{
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// === 基本类型的转换（优先级最高） ===
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// boolean
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static LSPAny ToLSPAny(boolean value)
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{
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return LSPAny(value);
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}
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// 整数类型
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static LSPAny ToLSPAny(int value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(long value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(long long value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(unsigned int value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(unsigned long value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(unsigned long long value)
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{
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return LSPAny(value);
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}
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// 浮点类型
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static LSPAny ToLSPAny(float value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(double value)
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{
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return LSPAny(value);
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}
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static LSPAny ToLSPAny(long double value)
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{
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return LSPAny(value);
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}
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// string
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static LSPAny ToLSPAny(const string& str)
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{
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return LSPAny(str);
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}
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static LSPAny ToLSPAny(const char* str)
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{
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return LSPAny(str);
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}
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// nullptr
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static LSPAny ToLSPAny(std::nullptr_t)
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{
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return LSPAny(nullptr);
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}
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// LSPAny 自身
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static LSPAny ToLSPAny(const LSPAny& any)
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{
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return any;
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}
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// === 容器类型的转换 ===
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// vector
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template<typename T>
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static LSPAny ToLSPAny(const std::vector<T>& vec)
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{
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LSPArray arr;
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arr.reserve(vec.size());
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for (const auto& item : vec)
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{
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arr.push_back(ToLSPAny(item));
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}
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return LSPAny(std::move(arr));
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}
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// map
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template<typename T>
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static LSPAny ToLSPAny(const std::map<string, T>& map)
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{
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LSPObject obj;
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for (const auto& [key, value] : map)
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{
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obj[key] = ToLSPAny(value);
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}
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return LSPAny(std::move(obj));
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}
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// optional
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template<typename T>
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static LSPAny ToLSPAny(const std::optional<T>& opt)
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{
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if (opt.has_value())
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{
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return ToLSPAny(*opt);
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}
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return LSPAny(nullptr);
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}
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// === Struct 到 LSPAny 的转换（最低优先级） ===
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template<typename T>
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static typename std::enable_if<
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!std::is_arithmetic<T>::value &&
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!std::is_same<T, string>::value &&
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!std::is_same<T, const char*>::value &&
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!std::is_same<T, std::nullptr_t>::value &&
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!std::is_same<T, LSPAny>::value,
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LSPAny>::type
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ToLSPAny(const T& obj)
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{
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// 序列化为 JSON 字符串
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std::string json;
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auto ec = glz::write_json(obj, json);
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if (ec)
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{
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throw std::runtime_error("Failed to serialize to JSON");
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}
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// 直接解析为 LSPAny
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LSPAny result;
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ec = glz::read_json(result, json);
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if (ec)
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{
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throw std::runtime_error("Failed to parse JSON to LSPAny");
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}
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return result;
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}
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// === LSPAny 到基本类型的转换 ===
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// boolean
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static boolean BoolFromLSPAny(const LSPAny& any)
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{
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if (!any.is<boolean>())
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{
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throw std::runtime_error("LSPAny is not a boolean");
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}
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return any.get<boolean>();
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}
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// 数字类型
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template<typename T>
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static typename std::enable_if<std::is_arithmetic<T>::value && !std::is_same<T, boolean>::value, T>::type
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NumberFromLSPAny(const LSPAny& any)
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{
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if (!any.is<decimal>())
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{
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throw std::runtime_error("LSPAny is not a number");
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}
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return static_cast<T>(any.get<decimal>());
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}
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// string
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static string StringFromLSPAny(const LSPAny& any)
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{
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if (!any.is<string>())
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{
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throw std::runtime_error("LSPAny is not a string");
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}
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return any.get<string>();
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}
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// === LSPAny 到容器类型的转换 ===
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// vector
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template<typename T>
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static std::vector<T> VectorFromLSPAny(const LSPAny& any)
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{
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if (!any.is<LSPArray>())
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{
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throw std::runtime_error("LSPAny is not an array");
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}
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const auto& arr = any.get<LSPArray>();
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std::vector<T> result;
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result.reserve(arr.size());
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for (const auto& item : arr)
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{
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result.push_back(FromLSPAny<T>(item));
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}
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return result;
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}
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// optional
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template<typename T>
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static std::optional<T> OptionalFromLSPAny(const LSPAny& any)
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{
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if (any.is<std::nullptr_t>())
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{
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return std::nullopt;
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}
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return FromLSPAny<T>(any);
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}
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// === LSPAny 到 Struct 的转换 ===
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template<typename T>
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static T FromLSPAny(const LSPAny& any)
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{
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return FromLSPAnyImpl<T>(any);
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}
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private:
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// 内部实现，使用重载来处理不同类型
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// boolean
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static boolean FromLSPAnyImpl(const LSPAny& any, boolean*)
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{
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return BoolFromLSPAny(any);
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}
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// string
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static string FromLSPAnyImpl(const LSPAny& any, string*)
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{
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return StringFromLSPAny(any);
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}
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// 数字类型
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template<typename T>
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static typename std::enable_if<std::is_arithmetic<T>::value && !std::is_same<T, boolean>::value, T>::type
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FromLSPAnyImpl(const LSPAny& any, T*)
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{
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return NumberFromLSPAny<T>(any);
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}
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// LSPAny 自身
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static LSPAny FromLSPAnyImpl(const LSPAny& any, LSPAny*)
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{
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return any;
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}
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// struct 类型
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template<typename T>
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static typename std::enable_if<
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!std::is_arithmetic<T>::value &&
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!std::is_same<T, string>::value &&
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!std::is_same<T, LSPAny>::value,
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T>::type
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FromLSPAnyImpl(const LSPAny& any, T*)
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{
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// 序列化 LSPAny 为 JSON
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std::string json;
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auto ec = glz::write_json(any.value, json);
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if (ec)
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{
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throw std::runtime_error("Failed to serialize LSPAny to JSON");
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}
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// 解析 JSON 到目标类型
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T result;
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ec = glz::read_json(result, json);
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if (ec)
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{
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throw std::runtime_error("Failed to parse JSON to target type");
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}
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return result;
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}
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// 通过指针类型来分派
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template<typename T>
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static T FromLSPAnyImpl(const LSPAny& any)
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{
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return FromLSPAnyImpl(any, static_cast<T*>(nullptr));
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}
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};
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// ===== 便利函数（可选） =====
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// 基本类型的便利函数
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inline LSPAny ToLSPAny(boolean value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(int value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(long value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(long long value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(unsigned int value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(unsigned long value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(unsigned long long value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(float value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(double value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(long double value) { return LSPConvert::ToLSPAny(value); }
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inline LSPAny ToLSPAny(const string& str) { return LSPConvert::ToLSPAny(str); }
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inline LSPAny ToLSPAny(const char* str) { return LSPConvert::ToLSPAny(str); }
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inline LSPAny ToLSPAny(std::nullptr_t) { return LSPConvert::ToLSPAny(nullptr); }
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inline LSPAny ToLSPAny(const LSPAny& any) { return LSPConvert::ToLSPAny(any); }
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// 容器类型的便利函数
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template<typename T>
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LSPAny ToLSPAny(const std::vector<T>& vec)
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{
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return LSPConvert::ToLSPAny(vec);
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}
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template<typename T>
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LSPAny ToLSPAny(const std::map<string, T>& map)
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{
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return LSPConvert::ToLSPAny(map);
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}
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template<typename T>
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LSPAny ToLSPAny(const std::optional<T>& opt)
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{
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return LSPConvert::ToLSPAny(opt);
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}
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// struct 类型的便利函数
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template<typename T>
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typename std::enable_if<
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!std::is_arithmetic<T>::value &&
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!std::is_same<T, string>::value &&
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!std::is_same<T, const char*>::value &&
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!std::is_same<T, std::nullptr_t>::value &&
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!std::is_same<T, LSPAny>::value,
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LSPAny>::type
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ToLSPAny(const T& value)
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{
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return LSPConvert::ToLSPAny(value);
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}
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// FromLSPAny 便利函数
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template<typename T>
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T FromLSPAny(const LSPAny& any)
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{
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return LSPConvert::FromLSPAny<T>(any);
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}
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// ===== 测试代码 =====
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// 测试用的结构体
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struct Message
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{
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string jsonrpc = "2.0";
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string method;
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int id = 0;
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};
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struct Position
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{
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int line;
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int character;
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};
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struct Range
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{
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Position start;
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Position end;
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};
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struct TextDocumentIdentifier
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{
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string uri;
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};
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struct TextDocumentPositionParams
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{
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TextDocumentIdentifier textDocument;
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Position position;
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};
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struct CompletionItem
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{
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string label;
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std::optional<int> kind;
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std::optional<string> detail;
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std::optional<string> documentation;
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std::optional<boolean> deprecated;
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std::optional<boolean> preselect;
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std::optional<string> sortText;
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std::optional<string> filterText;
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std::optional<string> insertText;
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};
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// 为测试结构体提供 glaze 元数据
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template<>
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struct glz::meta<Message>
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{
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using T = Message;
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static constexpr auto value = object(
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"jsonrpc",
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&T::jsonrpc,
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"method",
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&T::method,
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"id",
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&T::id);
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};
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template<>
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struct glz::meta<Position>
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{
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using T = Position;
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static constexpr auto value = object(
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"line",
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&T::line,
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"character",
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&T::character);
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};
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template<>
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struct glz::meta<Range>
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{
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using T = Range;
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static constexpr auto value = object(
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"start",
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&T::start,
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"end",
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&T::end);
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};
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template<>
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struct glz::meta<TextDocumentIdentifier>
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{
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using T = TextDocumentIdentifier;
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static constexpr auto value = object(
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"uri",
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&T::uri);
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};
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template<>
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struct glz::meta<TextDocumentPositionParams>
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{
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using T = TextDocumentPositionParams;
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static constexpr auto value = object(
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"textDocument",
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&T::textDocument,
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"position",
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&T::position);
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};
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template<>
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struct glz::meta<CompletionItem>
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{
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using T = CompletionItem;
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static constexpr auto value = object(
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"label",
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&T::label,
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"kind",
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&T::kind,
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"detail",
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&T::detail,
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"documentation",
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&T::documentation,
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"deprecated",
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&T::deprecated,
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"preselect",
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&T::preselect,
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"sortText",
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&T::sortText,
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"filterText",
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&T::filterText,
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"insertText",
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&T::insertText);
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};
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// 测试函数
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#include <iostream>
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void test_basic_conversion()
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{
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std::cout << "=== Testing Basic Conversion ===" << std::endl;
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// 测试 struct 转换
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Message msg;
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msg.method = "textDocument/completion";
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msg.id = 42;
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// Struct -> LSPAny
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LSPAny any = ToLSPAny(msg);
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// 序列化查看
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std::string json;
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glz::write_json(any, json);
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std::cout << "Message as JSON: " << json << std::endl;
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// LSPAny -> Struct
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Message restored = FromLSPAny<Message>(any);
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std::cout << "Restored method: " << restored.method << std::endl;
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std::cout << "Restored id: " << restored.id << std::endl;
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}
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void test_vector_conversion()
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{
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std::cout << "\n=== Testing Vector Conversion ===" << std::endl;
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std::vector<Position> positions = {
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{ 10, 5 },
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{ 20, 15 },
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{ 30, 25 }
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};
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// Vector -> LSPAny
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LSPAny any = ToLSPAny(positions);
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std::string json;
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glz::write_json(any, json);
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std::cout << "Vector as JSON: " << json << std::endl;
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// LSPAny -> Vector
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auto restored = LSPConvert::VectorFromLSPAny<Position>(any);
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std::cout << "Restored " << restored.size() << " positions" << std::endl;
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}
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void test_optional_conversion()
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{
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std::cout << "\n=== Testing Optional Conversion ===" << std::endl;
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CompletionItem item;
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item.label = "std::vector";
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item.kind = 1;
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item.detail = "template<typename T> class vector";
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LSPAny any = ToLSPAny(item);
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std::string json;
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glz::write_json(any, json);
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std::cout << "CompletionItem as JSON: " << json << std::endl;
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// 测试 null optional
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std::optional<string> empty_opt;
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LSPAny null_any = ToLSPAny(empty_opt);
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glz::write_json(null_any, json);
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std::cout << "Empty optional as JSON: " << json << std::endl;
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}
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void test_mixed_usage()
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{
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std::cout << "\n=== Testing Mixed Usage ===" << std::endl;
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// 创建复杂对象
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LSPObject obj;
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obj["message"] = ToLSPAny(Message{ "2.0", "test/method", 123 });
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obj["position"] = ToLSPAny(Position{ 10, 20 });
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obj["numbers"] = ToLSPAny(std::vector<int>{ 1, 2, 3 });
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obj["flag"] = LSPAny(true);
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obj["value"] = LSPAny(3.14);
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obj["text"] = LSPAny("Hello LSP");
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obj["empty"] = LSPAny(nullptr);
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LSPAny root(obj);
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std::string json;
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glz::write_json(root, json);
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std::cout << "Complex object: " << json << std::endl;
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// 提取值
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if (root.is<LSPObject>())
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{
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auto& root_obj = root.get<LSPObject>();
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Message msg = FromLSPAny<Message>(root_obj["message"]);
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std::cout << "Extracted message method: " << msg.method << std::endl;
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Position pos = FromLSPAny<Position>(root_obj["position"]);
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std::cout << "Extracted position: " << pos.line << ", " << pos.character << std::endl;
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}
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}
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int main()
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{
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try
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{
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test_basic_conversion();
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test_vector_conversion();
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test_optional_conversion();
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test_mixed_usage();
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std::cout << "\nAll tests completed!" << std::endl;
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}
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catch (const std::exception& e)
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{
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std::cout << "Exception: " << e.what() << std::endl;
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return 1;
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}
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return 0;
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}
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