geode/loader/include/Geode/utils/general.hpp
matcool 2c3520f454 Add CPM.cmake, use it for external libraries
this removes submodules and external libraries in the code in favor of
importing them as CPM packages. CPM_SOURCE_CACHE is recommended as
codegen has to readd two of the same dependencies
2022-12-12 18:20:24 -03:00

131 lines
4.2 KiB
C++

#pragma once
#include "Result.hpp"
#include "../DefaultInclude.hpp"
#include <chrono>
#include <iomanip>
#include <sstream>
#include <string>
#include <vector>
#include <ghc/filesystem.hpp>
#undef snprintf
// for some reason std::filesystem::path doesn't have std::hash defined in C++17
// and ghc seems to have inherited this limitation
template<>
struct std::hash<ghc::filesystem::path> {
std::size_t operator()(ghc::filesystem::path const& path) const noexcept {
return ghc::filesystem::hash_value(path);
}
};
namespace geode {
using byte_array = std::vector<uint8_t>;
template <typename T>
byte_array to_byte_array(T const& a) {
byte_array out;
out.resize(sizeof(T));
std::memcpy(out.data(), &a, sizeof(T));
return out;
}
template <class T>
struct TypeIdentity {
using type = T;
};
template <class T>
using TypeIdentityType = typename TypeIdentity<T>::type;
namespace utils {
// helper for std::visit
template<class... Ts> struct makeVisitor : Ts... { using Ts::operator()...; };
template<class... Ts> makeVisitor(Ts...) -> makeVisitor<Ts...>;
template<class T, class ... Args>
constexpr T getOr(std::variant<Args...> const& variant, T const& defValue) {
return std::holds_alternative<T>(variant) ?
std::get<T>(variant) : defValue;
}
constexpr unsigned int hash(char const* str, int h = 0) {
return !str[h] ? 5381 : (hash(str, h + 1) * 33) ^ str[h];
}
constexpr unsigned int hash(wchar_t const* str, int h = 0) {
return !str[h] ? 5381 : (hash(str, h + 1) * 33) ^ str[h];
}
constexpr size_t operator"" _h(char const* txt, size_t) {
return geode::utils::hash(txt);
}
constexpr size_t operator"" _h(wchar_t const* txt, size_t) {
return geode::utils::hash(txt);
}
template <typename T>
constexpr const T& clamp(const T& value, const T& minValue, const T& maxValue) {
return value < minValue ? minValue : maxValue < value ? maxValue : value;
}
// from https://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf
template <typename... Args>
std::string strfmt(std::string const& format, Args... args) {
int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; // Extra space for '\0'
if (size_s <= 0) {
throw std::runtime_error("Error during formatting.");
}
auto size = static_cast<size_t>(size_s);
auto buf = std::make_unique<char[]>(size);
std::snprintf(buf.get(), size, format.c_str(), args...);
return std::string(buf.get(), buf.get() + size - 1);
}
/**
* Format a string
* @returns Pointer to char array. MAKE SURE TO CALL DELETE[]!
*/
template <typename... Args>
char const* cstrfmt(char const* fmt, Args... args) {
auto str = strfmt(fmt, args...);
char* ptr = new char[str.size() + 1];
strcpy_s(ptr, str.c_str());
return ptr;
}
template <typename T>
std::string intToHex(T i) {
std::stringstream stream;
stream << std::showbase << std::setbase(16) << (uint64_t)i;
return stream.str();
}
/**
* Turn a number into a string, with support for specifying precision
* (unlike std::to_string).
* @param num Number to convert to string
* @param precision Precision of the converted number
* @returns Number as string
*/
template <class Num>
std::string numToString(Num num, size_t precision = 0) {
std::stringstream ss;
if (precision) {
ss << std::fixed << std::setprecision(precision);
}
ss << num;
return ss.str();
}
GEODE_DLL std::string timePointAsString(std::chrono::system_clock::time_point const& tp);
}
}
namespace geode::utils::clipboard {
GEODE_DLL bool write(std::string const& data);
GEODE_DLL std::string read();
}