68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
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#ifndef STAR_OUTPUT_PROXY_HPP
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#define STAR_OUTPUT_PROXY_HPP
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#include "StarMemory.hpp"
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#include "fmt/format.h"
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#include "fmt/ostream.h"
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namespace Star {
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namespace OutputAnyDetail {
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template<typename T, typename CharT, typename Traits>
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std::basic_string<CharT, Traits> string(T const& t) {
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return fmt::format("<type {} at address: {}>", typeid(T).name(), (void*)&t);
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}
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template<typename T, typename CharT, typename Traits>
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std::basic_ostream<CharT, Traits>& output(std::basic_ostream<CharT, Traits>& os, T const& t) {
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return os << string<T, CharT, Traits>(t);
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}
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namespace Operator {
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template<typename T, typename CharT, typename Traits>
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std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, T const& t) {
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return output(os, t);
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}
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}
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template <typename T>
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struct Wrapper {
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T const& wrapped;
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};
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template <typename T>
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std::ostream& operator<<(std::ostream& os, Wrapper<T> const& wrapper) {
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using namespace Operator;
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return os << wrapper.wrapped;
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}
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}
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// Wraps a type so that is printable no matter what.. If no operator<< is
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// defined for a type, then will print <type [typeid] at address: [address]>
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template <typename T>
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OutputAnyDetail::Wrapper<T> outputAny(T const& t) {
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return OutputAnyDetail::Wrapper<T>{t};
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}
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struct OutputProxy {
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typedef function<void(std::ostream&)> PrintFunction;
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OutputProxy(PrintFunction p)
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: print(move(p)) {}
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PrintFunction print;
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};
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inline std::ostream& operator<<(std::ostream& os, OutputProxy const& p) {
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p.print(os);
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return os;
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}
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}
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template <typename T>
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struct fmt::formatter<Star::OutputAnyDetail::Wrapper<T>> : ostream_formatter {};
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template <> struct fmt::formatter<Star::OutputProxy> : ostream_formatter {};
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#endif
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