96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#pragma once
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#include <hex.hpp>
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#include <array>
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#include <functional>
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#include <memory>
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#include <optional>
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#include <string>
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#include <vector>
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#include "lang/token.hpp"
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namespace hex {
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template<typename ... Args>
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inline std::string format(const std::string &format, Args ... args) {
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size_t size = snprintf( nullptr, 0, format.c_str(), args ... );
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if( size <= 0 )
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return "";
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std::vector<char> buffer(size + 1, 0x00);
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snprintf(buffer.data(), size + 1, format.c_str(), args ...);
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return std::string(buffer.data(), buffer.data() + size);
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}
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[[nodiscard]] constexpr inline u64 signExtend(u64 value, u8 currWidth, u8 targetWidth) {
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u64 mask = 1LLU << (currWidth - 1);
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return (((value ^ mask) - mask) << (64 - targetWidth)) >> (64 - targetWidth);
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}
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constexpr inline bool isUnsigned(const lang::Token::TypeToken::Type type) {
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return (static_cast<u32>(type) & 0x0F) == 0x00;
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}
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constexpr inline bool isSigned(const lang::Token::TypeToken::Type type) {
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return (static_cast<u32>(type) & 0x0F) == 0x01;
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}
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constexpr inline bool isFloatingPoint(const lang::Token::TypeToken::Type type) {
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return (static_cast<u32>(type) & 0x0F) == 0x02;
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}
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constexpr inline u32 getTypeSize(const lang::Token::TypeToken::Type type) {
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return static_cast<u32>(type) >> 4;
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}
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inline std::string toByteString(u64 bytes) {
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double value = bytes;
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u8 unitIndex = 0;
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while (value > 1024) {
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value /= 1024;
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unitIndex++;
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if (unitIndex == 6)
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break;
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}
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std::string result = std::to_string(value);
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switch (unitIndex) {
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case 0: result += " Bytes"; break;
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case 1: result += " kB"; break;
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case 2: result += " MB"; break;
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case 3: result += " GB"; break;
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case 4: result += " TB"; break;
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case 5: result += " PB"; break;
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case 6: result += " EB"; break;
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default: result = "A lot!";
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}
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return result;
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}
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[[nodiscard]] constexpr inline u64 extract(u8 from, u8 to, const u64 &value) {
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u64 mask = (std::numeric_limits<u64>::max() >> (63 - (from - to))) << to;
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return (value & mask) >> to;
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}
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class ScopeExit {
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public:
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ScopeExit(std::function<void()> func) : m_func(func) {}
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~ScopeExit() { if (this->m_func != nullptr) this->m_func(); }
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void release() {
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this->m_func = nullptr;
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}
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private:
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std::function<void()> m_func;
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};
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} |