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authorDaniil Cherednik <dan.cherednik@gmail.com>2022-10-11 17:07:02 +0300
committerDaniil Cherednik <dan.cherednik@gmail.com>2022-10-11 17:07:02 +0300
commit0b931ad6e6868bca7e7ec4617999c0d6befd7003 (patch)
treec10d4fcf9f5a638745e9c2b725852f03e5a175ce /contrib/restricted/nlohmann_json/include/nlohmann/detail/exceptions.hpp
parente6c9b17192c56494adba359d5e132c431b241191 (diff)
downloadydb-0b931ad6e6868bca7e7ec4617999c0d6befd7003.tar.gz
Ydb stable 22-4-3022.4.30
x-stable-origin-commit: a5971297427891237b5f05b5389146b6ca2fff93
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+// __ _____ _____ _____
+// __| | __| | | | JSON for Modern C++
+// | | |__ | | | | | | version 3.11.2
+// |_____|_____|_____|_|___| https://github.com/nlohmann/json
+//
+// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <cstddef> // nullptr_t
+#include <exception> // exception
+#include <stdexcept> // runtime_error
+#include <string> // to_string
+#include <vector> // vector
+
+#include <nlohmann/detail/value_t.hpp>
+#include <nlohmann/detail/string_escape.hpp>
+#include <nlohmann/detail/input/position_t.hpp>
+#include <nlohmann/detail/macro_scope.hpp>
+#include <nlohmann/detail/meta/cpp_future.hpp>
+#include <nlohmann/detail/meta/type_traits.hpp>
+#include <nlohmann/detail/string_concat.hpp>
+
+
+NLOHMANN_JSON_NAMESPACE_BEGIN
+namespace detail
+{
+
+////////////////
+// exceptions //
+////////////////
+
+/// @brief general exception of the @ref basic_json class
+/// @sa https://json.nlohmann.me/api/basic_json/exception/
+class exception : public std::exception
+{
+ public:
+ /// returns the explanatory string
+ const char* what() const noexcept override
+ {
+ return m.what();
+ }
+
+ /// the id of the exception
+ const int id; // NOLINT(cppcoreguidelines-non-private-member-variables-in-classes)
+
+ protected:
+ JSON_HEDLEY_NON_NULL(3)
+ exception(int id_, const char* what_arg) : id(id_), m(what_arg) {} // NOLINT(bugprone-throw-keyword-missing)
+
+ static std::string name(const std::string& ename, int id_)
+ {
+ return concat("[json.exception.", ename, '.', std::to_string(id_), "] ");
+ }
+
+ static std::string diagnostics(std::nullptr_t /*leaf_element*/)
+ {
+ return "";
+ }
+
+ template<typename BasicJsonType>
+ static std::string diagnostics(const BasicJsonType* leaf_element)
+ {
+#if JSON_DIAGNOSTICS
+ std::vector<std::string> tokens;
+ for (const auto* current = leaf_element; current != nullptr && current->m_parent != nullptr; current = current->m_parent)
+ {
+ switch (current->m_parent->type())
+ {
+ case value_t::array:
+ {
+ for (std::size_t i = 0; i < current->m_parent->m_value.array->size(); ++i)
+ {
+ if (&current->m_parent->m_value.array->operator[](i) == current)
+ {
+ tokens.emplace_back(std::to_string(i));
+ break;
+ }
+ }
+ break;
+ }
+
+ case value_t::object:
+ {
+ for (const auto& element : *current->m_parent->m_value.object)
+ {
+ if (&element.second == current)
+ {
+ tokens.emplace_back(element.first.c_str());
+ break;
+ }
+ }
+ break;
+ }
+
+ case value_t::null: // LCOV_EXCL_LINE
+ case value_t::string: // LCOV_EXCL_LINE
+ case value_t::boolean: // LCOV_EXCL_LINE
+ case value_t::number_integer: // LCOV_EXCL_LINE
+ case value_t::number_unsigned: // LCOV_EXCL_LINE
+ case value_t::number_float: // LCOV_EXCL_LINE
+ case value_t::binary: // LCOV_EXCL_LINE
+ case value_t::discarded: // LCOV_EXCL_LINE
+ default: // LCOV_EXCL_LINE
+ break; // LCOV_EXCL_LINE
+ }
+ }
+
+ if (tokens.empty())
+ {
+ return "";
+ }
+
+ auto str = std::accumulate(tokens.rbegin(), tokens.rend(), std::string{},
+ [](const std::string & a, const std::string & b)
+ {
+ return concat(a, '/', detail::escape(b));
+ });
+ return concat('(', str, ") ");
+#else
+ static_cast<void>(leaf_element);
+ return "";
+#endif
+ }
+
+ private:
+ /// an exception object as storage for error messages
+ std::runtime_error m;
+};
+
+/// @brief exception indicating a parse error
+/// @sa https://json.nlohmann.me/api/basic_json/parse_error/
+class parse_error : public exception
+{
+ public:
+ /*!
+ @brief create a parse error exception
+ @param[in] id_ the id of the exception
+ @param[in] pos the position where the error occurred (or with
+ chars_read_total=0 if the position cannot be
+ determined)
+ @param[in] what_arg the explanatory string
+ @return parse_error object
+ */
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static parse_error create(int id_, const position_t& pos, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("parse_error", id_), "parse error",
+ position_string(pos), ": ", exception::diagnostics(context), what_arg);
+ return {id_, pos.chars_read_total, w.c_str()};
+ }
+
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static parse_error create(int id_, std::size_t byte_, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("parse_error", id_), "parse error",
+ (byte_ != 0 ? (concat(" at byte ", std::to_string(byte_))) : ""),
+ ": ", exception::diagnostics(context), what_arg);
+ return {id_, byte_, w.c_str()};
+ }
+
+ /*!
+ @brief byte index of the parse error
+
+ The byte index of the last read character in the input file.
+
+ @note For an input with n bytes, 1 is the index of the first character and
+ n+1 is the index of the terminating null byte or the end of file.
+ This also holds true when reading a byte vector (CBOR or MessagePack).
+ */
+ const std::size_t byte;
+
+ private:
+ parse_error(int id_, std::size_t byte_, const char* what_arg)
+ : exception(id_, what_arg), byte(byte_) {}
+
+ static std::string position_string(const position_t& pos)
+ {
+ return concat(" at line ", std::to_string(pos.lines_read + 1),
+ ", column ", std::to_string(pos.chars_read_current_line));
+ }
+};
+
+/// @brief exception indicating errors with iterators
+/// @sa https://json.nlohmann.me/api/basic_json/invalid_iterator/
+class invalid_iterator : public exception
+{
+ public:
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static invalid_iterator create(int id_, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("invalid_iterator", id_), exception::diagnostics(context), what_arg);
+ return {id_, w.c_str()};
+ }
+
+ private:
+ JSON_HEDLEY_NON_NULL(3)
+ invalid_iterator(int id_, const char* what_arg)
+ : exception(id_, what_arg) {}
+};
+
+/// @brief exception indicating executing a member function with a wrong type
+/// @sa https://json.nlohmann.me/api/basic_json/type_error/
+class type_error : public exception
+{
+ public:
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static type_error create(int id_, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("type_error", id_), exception::diagnostics(context), what_arg);
+ return {id_, w.c_str()};
+ }
+
+ private:
+ JSON_HEDLEY_NON_NULL(3)
+ type_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+
+/// @brief exception indicating access out of the defined range
+/// @sa https://json.nlohmann.me/api/basic_json/out_of_range/
+class out_of_range : public exception
+{
+ public:
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static out_of_range create(int id_, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("out_of_range", id_), exception::diagnostics(context), what_arg);
+ return {id_, w.c_str()};
+ }
+
+ private:
+ JSON_HEDLEY_NON_NULL(3)
+ out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+
+/// @brief exception indicating other library errors
+/// @sa https://json.nlohmann.me/api/basic_json/other_error/
+class other_error : public exception
+{
+ public:
+ template<typename BasicJsonContext, enable_if_t<is_basic_json_context<BasicJsonContext>::value, int> = 0>
+ static other_error create(int id_, const std::string& what_arg, BasicJsonContext context)
+ {
+ std::string w = concat(exception::name("other_error", id_), exception::diagnostics(context), what_arg);
+ return {id_, w.c_str()};
+ }
+
+ private:
+ JSON_HEDLEY_NON_NULL(3)
+ other_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
+};
+
+} // namespace detail
+NLOHMANN_JSON_NAMESPACE_END