153 lines
4.5 KiB
C++
153 lines
4.5 KiB
C++
//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/json
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//
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#ifndef BOOST_JSON_IMPL_ERROR_IPP
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#define BOOST_JSON_IMPL_ERROR_IPP
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#include <boost/json/error.hpp>
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BOOST_JSON_NS_BEGIN
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error_code
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make_error_code(error e)
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{
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struct codes : error_category
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{
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const char*
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name() const noexcept override
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{
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return "boost.json";
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}
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std::string
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message(int ev) const override
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{
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switch(static_cast<error>(ev))
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{
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default:
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case error::syntax: return "syntax error";
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case error::extra_data: return "extra data";
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case error::incomplete: return "incomplete JSON";
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case error::exponent_overflow: return "exponent overflow";
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case error::too_deep: return "too deep";
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case error::illegal_leading_surrogate: return "illegal leading surrogate";
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case error::illegal_trailing_surrogate: return "illegal trailing surrogate";
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case error::expected_hex_digit: return "expected hex digit";
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case error::expected_utf16_escape: return "expected utf16 escape";
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case error::object_too_large: return "object too large";
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case error::array_too_large: return "array too large";
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case error::key_too_large: return "key too large";
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case error::string_too_large: return "string too large";
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case error::exception: return "got exception";
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case error::not_number: return "not a number";
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case error::not_exact: return "not exact";
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case error::test_failure: return "test failure";
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case error::missing_slash: return "missing slash character";
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case error::invalid_escape: return "invalid escape sequence";
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case error::token_not_number: return "token is not a number";
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case error::value_is_scalar: return "current value is scalar";
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case error::not_found: return "no referenced value";
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case error::token_overflow: return "token overflow";
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case error::past_the_end: return "past-the-end token not supported";
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}
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}
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error_condition
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default_error_condition(
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int ev) const noexcept override
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{
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switch(static_cast<error>(ev))
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{
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default:
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return {ev, *this};
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case error::syntax:
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case error::extra_data:
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case error::incomplete:
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case error::exponent_overflow:
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case error::too_deep:
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case error::illegal_leading_surrogate:
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case error::illegal_trailing_surrogate:
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case error::expected_hex_digit:
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case error::expected_utf16_escape:
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case error::object_too_large:
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case error::array_too_large:
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case error::key_too_large:
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case error::string_too_large:
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case error::exception:
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return condition::parse_error;
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case error::not_number:
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case error::not_exact:
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return condition::assign_error;
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case error::missing_slash:
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case error::invalid_escape:
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return condition::pointer_parse_error;
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case error::token_not_number:
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case error::value_is_scalar:
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case error::not_found:
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case error::token_overflow:
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case error::past_the_end:
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return condition::pointer_use_error;
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}
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}
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};
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// on some versions of msvc-14.2 the category is put in RO memory
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// erroneusly, if the category object is const,
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// and that may result in crash
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static codes cat{};
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return error_code{static_cast<
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std::underlying_type<error>::type>(e), cat};
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}
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error_condition
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make_error_condition(condition c)
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{
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struct codes : error_category
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{
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const char*
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name() const noexcept override
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{
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return "boost.json";
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}
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std::string
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message(int cv) const override
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{
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switch(static_cast<condition>(cv))
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{
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default:
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case condition::parse_error:
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return "A JSON parse error occurred";
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case condition::assign_error:
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return "An error occurred during assignment";
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case condition::pointer_parse_error:
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return "A JSON Pointer parse error occurred";
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case condition::pointer_use_error:
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return "An error occurred when JSON Pointer was used with"
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" a value";
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}
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}
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};
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// on some versions of msvc-14.2 the category is put in RO memory
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// erroneusly, if the category object is const,
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// and that may result in crash
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static codes cat{};
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return error_condition{static_cast<
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std::underlying_type<condition>::type>(c), cat};
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}
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BOOST_JSON_NS_END
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#endif
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