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/**
* @copyright
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
* @endcopyright
*/
#ifndef __cplusplus
#error "This is a C++ header file."
#endif
#ifndef SVN_CXXHL_EXCEPTION_HPP
#define SVN_CXXHL_EXCEPTION_HPP
#include <exception>
#include <string>
#include <utility>
#include <vector>
#include "svncxxhl/_compat.hpp"
// Forward declaration of implementation-specific structure
struct svn_error_t;
namespace subversion {
namespace cxxhl {
namespace compat {} // Announce the compat namespace for shared_ptr lookup
namespace detail {
// Forward declaration of implementation-specific structure
class error_description;
} // namespace detail
namespace version_1_9_dev {
class error : public std::exception
{
public:
typedef compat::shared_ptr<error> shared_ptr;
error(const char* description, int error_code);
error(const char* description, int error_code, shared_ptr nested_error);
error(const error& that) throw();
error& operator=(const error& that) throw();
virtual ~error() throw();
/**
* Returns the error code associated with the exception.
*/
virtual int code() const throw() { return m_errno; }
/**
* Returns a shared pointer to the nested exception object, if any.
*/
virtual shared_ptr nested() const throw() { return m_nested; }
/// Returns the message associated with this exception object.
virtual const char* what() const throw();
/**
* Error message description.
*
* The first element of this pair is the error code, the second the
* associated error message. If the error code is 0, the message
* describes the location in the source code where the error was
* generated from.
*/
typedef std::pair<int, std::string> message;
/**
* The list of messages associated with an error.
*/
typedef std::vector<message> message_list;
/**
* Returns the complete list of error messages, including those from
* nested exceptions.
*/
virtual message_list messages() const
{
return compile_messages(false);
}
/**
* Like error::messages(), but includes debugging traceback.
*
* @note
* Traceback is only available if the Subversion libraries were
* compiled with tracing enabled.
*/
virtual message_list traced_messages() const
{
return compile_messages(true);
}
public:
/** Used internally by the implementation. */
static void throw_svn_error(svn_error_t*);
protected:
error(int error_code, detail::error_description* description) throw();
private:
std::vector<message> compile_messages(bool show_traces) const;
int m_errno; /**< The (SVN or APR) error code. */
shared_ptr m_nested; /**< Optional pointer to nessted error. */
/** Error description and trace location information. */
detail::error_description* m_description;
};
class cancelled : public error
{
friend void error::throw_svn_error(svn_error_t*);
protected:
cancelled(int error_code, detail::error_description* description) throw()
: error(error_code, description)
{}
};
} // namespace version_1_9_dev
} // namespace cxxhl
} // namespace subversion
#endif // SVN_CXXHL_EXCEPTION_HPP
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