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Diffstat (limited to 'vendor/toml++/impl/parse_error.hpp')
| -rw-r--r-- | vendor/toml++/impl/parse_error.hpp | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/vendor/toml++/impl/parse_error.hpp b/vendor/toml++/impl/parse_error.hpp new file mode 100644 index 0000000..05f2b6d --- /dev/null +++ b/vendor/toml++/impl/parse_error.hpp @@ -0,0 +1,139 @@ +//# This file is a part of toml++ and is subject to the the terms of the MIT license. +//# Copyright (c) Mark Gillard <mark.gillard@outlook.com.au> +//# See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text. +// SPDX-License-Identifier: MIT +#pragma once + +#include "preprocessor.hpp" +#if TOML_ENABLE_PARSER + +#include "std_except.hpp" +#include "source_region.hpp" +#include "print_to_stream.hpp" +#include "header_start.hpp" + +#if TOML_DOXYGEN || !TOML_EXCEPTIONS +#define TOML_PARSE_ERROR_BASE +#else +#define TOML_PARSE_ERROR_BASE : public std::runtime_error +#endif + +TOML_NAMESPACE_START +{ + TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex); + + /// \brief An error generated when parsing fails. + /// + /// \remarks This class inherits from std::runtime_error when exceptions are enabled. + /// The public interface is the same regardless of exception mode. + class parse_error TOML_PARSE_ERROR_BASE + { + private: +#if !TOML_EXCEPTIONS + std::string description_; +#endif + source_region source_; + + public: +#if TOML_EXCEPTIONS + + TOML_NODISCARD_CTOR + TOML_ATTR(nonnull) + parse_error(const char* desc, source_region&& src) noexcept // + : std::runtime_error{ desc }, + source_{ std::move(src) } + {} + + TOML_NODISCARD_CTOR + TOML_ATTR(nonnull) + parse_error(const char* desc, const source_region& src) noexcept // + : parse_error{ desc, source_region{ src } } + {} + + TOML_NODISCARD_CTOR + TOML_ATTR(nonnull) + parse_error(const char* desc, const source_position& position, const source_path_ptr& path = {}) noexcept + : parse_error{ desc, source_region{ position, position, path } } + {} + +#else + + TOML_NODISCARD_CTOR + parse_error(std::string&& desc, source_region&& src) noexcept // + : description_{ std::move(desc) }, + source_{ std::move(src) } + {} + + TOML_NODISCARD_CTOR + parse_error(std::string&& desc, const source_region& src) noexcept // + : parse_error{ std::move(desc), source_region{ src } } + {} + + TOML_NODISCARD_CTOR + parse_error(std::string&& desc, const source_position& position, const source_path_ptr& path = {}) noexcept + : parse_error{ std::move(desc), source_region{ position, position, path } } + {} + +#endif + + /// \brief Returns a textual description of the error. + /// \remark The backing string is guaranteed to be null-terminated. + TOML_NODISCARD + std::string_view description() const noexcept + { +#if TOML_EXCEPTIONS + return std::string_view{ what() }; +#else + return description_; +#endif + } + + /// \brief Returns the region of the source document responsible for the error. + TOML_NODISCARD + const source_region& source() const noexcept + { + return source_; + } + + /// \brief Prints a parse_error to a stream. + /// + /// \detail \cpp + /// try + /// { + /// auto tbl = toml::parse("enabled = trUe"sv); + /// } + /// catch (const toml::parse_error & err) + /// { + /// std::cerr << "Parsing failed:\n"sv << err << "\n"; + /// } + /// \ecpp + /// + /// \out + /// Parsing failed: + /// Encountered unexpected character while parsing boolean; expected 'true', saw 'trU' + /// (error occurred at line 1, column 13) + /// \eout + /// + /// \tparam Char The output stream's underlying character type. Must be 1 byte in size. + /// \param lhs The stream. + /// \param rhs The parse_error. + /// + /// \returns The input stream. + friend std::ostream& operator<<(std::ostream& lhs, const parse_error& rhs) + { + impl::print_to_stream(lhs, rhs.description()); + impl::print_to_stream(lhs, "\n\t(error occurred at "sv); + impl::print_to_stream(lhs, rhs.source()); + impl::print_to_stream(lhs, ")"sv); + return lhs; + } + }; + + TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS +} +TOML_NAMESPACE_END; + +#undef TOML_PARSE_ERROR_BASE + +#include "header_end.hpp" +#endif // TOML_ENABLE_PARSER |