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TokenValue.hpp
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TokenValue.hpp
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#pragma once
#include <cstdint>
#include <sstream>
#include <vector>
class TokenValue {
public:
enum class Type
{
kBool,
kChar,
kU8,
kU16,
kU32,
kU64,
kI8,
kI16,
kI32,
kI64,
kF32,
kF64,
kText,
kByteString,
kEmpty,
kVoid
};
TokenValue() : type_(Type::kEmpty) {}
TokenValue(bool val) : bool_(val), type_(Type::kBool) {}
TokenValue(char val) : char_(val), type_(Type::kChar) {}
TokenValue(uint8_t val) : u8_(val), type_(Type::kU8) {}
TokenValue(uint16_t val) : u16_(val), type_(Type::kU16) {}
TokenValue(uint32_t val) : u32_(val), type_(Type::kU32) {}
TokenValue(uint64_t val) : u64_(val), type_(Type::kU64) {}
TokenValue(int8_t val) : i8_(val), type_(Type::kI8) {}
TokenValue(int16_t val) : i16_(val), type_(Type::kI16) {}
TokenValue(int32_t val) : i32_(val), type_(Type::kI32) {}
TokenValue(int64_t val) : i64_(val), type_(Type::kI64) {}
TokenValue(float val) : f32_(val), type_(Type::kF32) {}
TokenValue(double val) : f64_(val), type_(Type::kF64) {}
TokenValue(std::string val) : text_(val), type_(Type::kText) {}
TokenValue(const std::vector<uint8_t> &val) : byte_string_(val), type_(Type::kByteString) {}
operator bool() const {
return bool_;
}
operator char() const {
return char_;
}
operator uint8_t() const {
return u8_;
}
operator uint16_t() const {
return u16_;
}
operator uint32_t() const {
return u32_;
}
operator uint64_t() const {
return u64_;
}
operator int8_t() const {
return i8_;
}
operator int16_t() const {
return i16_;
}
operator int32_t() const {
return i32_;
}
operator int64_t() const {
return i64_;
}
operator float() const {
return f32_;
}
operator double() const {
return f64_;
}
operator std::string() const {
return text_;
}
operator std::vector<uint8_t>() const {
return byte_string_;
}
std::string ToString() const {
std::ostringstream oss;
oss << TypeToString(type_);
if (type_ != Type::kEmpty) {
oss << ' ' << ValueToString();
}
return oss.str();
}
std::string ValueToString() const {
std::ostringstream oss;
if (type_ != Type::kEmpty) {
switch (type_) {
case Type::kBool:
oss << bool_;
break;
case Type::kChar:
oss << char_;
break;
case Type::kU8:
oss << static_cast<uint16_t>(u8_);
break;
case Type::kU16:
oss << u16_;
break;
case Type::kU32:
oss << u32_;
break;
case Type::kU64:
oss << u64_;
break;
case Type::kI8:
oss << static_cast<int16_t>(i8_);
break;
case Type::kI16:
oss << i16_;
break;
case Type::kI32:
oss << i32_;
break;
case Type::kI64:
oss << i64_;
break;
case Type::kF32:
oss << f32_;
break;
case Type::kF64:
oss << f64_;
break;
case Type::kText:
oss << text_;
break;
case Type::kByteString:
for (size_t i = 0; i < byte_string_.size(); i++) {
oss << static_cast<uint16_t>(byte_string_[i]);
if (i + 1 != byte_string_.size()) {
oss << ' ';
}
}
break;
default:
throw std::exception();
}
}
return oss.str();
}
static std::string TypeToString(Type type) {
switch (type) {
case Type::kBool:
return "bool";
case Type::kChar:
return "char";
case Type::kU8:
return "u8";
case Type::kU16:
return "u16";
case Type::kU32:
return "u32";
case Type::kU64:
return "u64";
case Type::kI8:
return "i8";
case Type::kI16:
return "i16";
case Type::kI32:
return "i32";
case Type::kI64:
return "i64";
case Type::kF32:
return "f32";
case Type::kF64:
return "f64";
case Type::kText:
return "text";
case Type::kByteString:
return "byte string";
case Type::kEmpty:
return "empty";
default:
throw std::exception();
}
}
Type GetType() const {
return type_;
}
bool IsInteger() const {
return 2 <= static_cast<int>(type_) && 9 >= static_cast<int>(type_);
}
bool IsUnsignedInteger() const {
return 2 <= static_cast<int>(type_) && 5 >= static_cast<int>(type_);
}
int64_t GetInt() const {
if (type_ == Type::kI8)
return i8_;
if (type_ == Type::kI16)
return i16_;
if (type_ == Type::kI32)
return i32_;
if (type_ == Type::kI64)
return i64_;
if (type_ == Type::kU8)
return i8_;
if (type_ == Type::kU16)
return i16_;
if (type_ == Type::kU32)
return i32_;
if (type_ == Type::kU64)
return i64_;
throw std::exception(); // todo
}
uint64_t GetUnsignedInt() const {
if (type_ == Type::kU8)
return i8_;
if (type_ == Type::kU16)
return i16_;
if (type_ == Type::kU32)
return i32_;
if (type_ == Type::kU64)
return i64_;
throw std::exception(); // todo
}
private:
Type type_;
union {
bool bool_;
char char_;
uint8_t u8_;
uint16_t u16_;
uint32_t u32_;
uint64_t u64_;
int8_t i8_;
int16_t i16_;
int32_t i32_;
int64_t i64_;
float f32_;
double f64_;
};
std::string text_;
std::vector<uint8_t> byte_string_;
};