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/*
* Copyright (c) 2003-2023, John Wiegley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of New Artisans LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @addtogroup util
*/
/**
* @file error.h
* @author John Wiegley
*
* @ingroup util
*/
#pragma once
namespace ledger {
extern std::ostringstream _desc_buffer;
template <typename T>
[[ noreturn ]] inline void throw_func(const string& message) {
_desc_buffer.clear();
_desc_buffer.str("");
throw T(message);
}
#define throw_(cls, msg) \
((_desc_buffer << (msg)), \
throw_func<cls>(_desc_buffer.str()))
inline void warning_func(const string& message) {
std::cerr << "Warning: " << message << std::endl;
_desc_buffer.clear();
_desc_buffer.str("");
}
#define warning_(msg) \
((_desc_buffer << (msg)), \
warning_func(_desc_buffer.str()))
extern std::ostringstream _ctxt_buffer;
#define add_error_context(msg) \
((long(_ctxt_buffer.tellp()) == 0) ? \
(_ctxt_buffer << (msg)) : \
(_ctxt_buffer << std::endl << (msg)))
string error_context();
string file_context(const path& file, std::size_t line);
string line_context(const string& line,
const string::size_type pos = 0,
const string::size_type end_pos = 0);
string source_context(const path& file,
const std::istream::pos_type pos,
const std::istream::pos_type end_pos,
const string& prefix = "");
#define DECLARE_EXCEPTION(name, kind) \
class name : public kind { \
public: \
explicit name(const string& why) throw() : kind(why) {} \
virtual ~name() throw() {} \
}
struct error_count {
std::size_t count;
std::string message;
explicit error_count(std::size_t _count, std::string _msg) : count(_count), message(_msg) {}
const char * what() const { return message.c_str(); }
};
} // namespace ledger
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