102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
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#ifndef TOML11_ERROR_INFO_FWD_HPP
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#define TOML11_ERROR_INFO_FWD_HPP
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#include "../source_location.hpp"
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#include "../utility.hpp"
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#include "../version.hpp"
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namespace toml
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{
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inline namespace TOML11_INLINE_VERSION_NAMESPACE
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{
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// error info returned from parser.
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struct error_info
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{
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error_info(std::string t, source_location l, std::string m, std::string s = "")
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: title_(std::move(t)), locations_{std::make_pair(std::move(l), std::move(m))},
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suffix_(std::move(s))
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{}
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error_info(std::string t, std::vector<std::pair<source_location, std::string>> l,
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std::string s = "")
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: title_(std::move(t)), locations_(std::move(l)), suffix_(std::move(s))
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{}
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std::string const& title() const noexcept {return title_;}
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std::string & title() noexcept {return title_;}
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std::vector<std::pair<source_location, std::string>> const&
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locations() const noexcept {return locations_;}
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void add_locations(source_location loc, std::string msg) noexcept
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{
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locations_.emplace_back(std::move(loc), std::move(msg));
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}
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std::string const& suffix() const noexcept {return suffix_;}
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std::string & suffix() noexcept {return suffix_;}
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private:
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std::string title_;
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std::vector<std::pair<source_location, std::string>> locations_;
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std::string suffix_; // hint or something like that
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};
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// forward decl
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template<typename TypeConfig>
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class basic_value;
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namespace detail
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{
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inline error_info make_error_info_rec(error_info e)
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{
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return e;
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}
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inline error_info make_error_info_rec(error_info e, std::string s)
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{
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e.suffix() = s;
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return e;
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}
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template<typename TC, typename ... Ts>
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error_info make_error_info_rec(error_info e,
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const basic_value<TC>& v, std::string msg, Ts&& ... tail);
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template<typename ... Ts>
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error_info make_error_info_rec(error_info e,
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source_location loc, std::string msg, Ts&& ... tail)
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{
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e.add_locations(std::move(loc), std::move(msg));
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return make_error_info_rec(std::move(e), std::forward<Ts>(tail)...);
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}
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} // detail
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template<typename ... Ts>
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error_info make_error_info(
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std::string title, source_location loc, std::string msg, Ts&& ... tail)
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{
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error_info ei(std::move(title), std::move(loc), std::move(msg));
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return detail::make_error_info_rec(ei, std::forward<Ts>(tail) ... );
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}
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std::string format_error(const std::string& errkind, const error_info& err);
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std::string format_error(const error_info& err);
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// for custom error message
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template<typename ... Ts>
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std::string format_error(std::string title,
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source_location loc, std::string msg, Ts&& ... tail)
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{
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return format_error("", make_error_info(std::move(title),
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std::move(loc), std::move(msg), std::forward<Ts>(tail)...));
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}
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std::ostream& operator<<(std::ostream& os, const error_info& e);
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} // TOML11_INLINE_VERSION_NAMESPACE
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} // toml
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#endif // TOML11_ERROR_INFO_FWD_HPP
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