///////////////////////////////////////////////////////////////////////////

//

// Copyright (c) 2002-2012, Industrial Light & Magic, a division of Lucas

// Digital Ltd. LLC

// 

// 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 Industrial Light & Magic 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.

//

///////////////////////////////////////////////////////////////////////////

//---------------------------------------------------------------------

//

//  Constructors and destructors for our exception base class.

//

//---------------------------------------------------------------------

#include "IexExport.h"

#include "IexBaseExc.h"

#include "IexMacros.h"

#ifdef PLATFORM_WINDOWS

#include <windows.h>

#endif

#include <stdlib.h>

IEX_INTERNAL_NAMESPACE_SOURCE_ENTER

namespace {

StackTracer currentStackTracer = 0;

} // namespace

void  

setStackTracer (StackTracer stackTracer)

{

    currentStackTracer = stackTracer;

}

StackTracer

stackTracer ()

{

    return currentStackTracer;

}

BaseExc::BaseExc (const char* s) throw () :

    _message (s? s: ""),

    _stackTrace (currentStackTracer? currentStackTracer(): "")

{

    // empty

}

BaseExc::BaseExc (const std::string &s) throw () :

    _message (s),

    _stackTrace (currentStackTracer? currentStackTracer(): "")

{

    // empty

}

BaseExc::BaseExc (std::stringstream &s) throw () :

    _message (s.str()),

    _stackTrace (currentStackTracer? currentStackTracer(): "")

{

    // empty

}

BaseExc::BaseExc (const BaseExc &be) throw () :

    _message (be._message),

    _stackTrace (be._stackTrace)

{

    // empty

}

BaseExc::~BaseExc () throw ()

{

    // empty

}

const char *

BaseExc::what () const throw ()

{

    return _message.c_str();

}

BaseExc &

BaseExc::assign (std::stringstream &s)

{

    _message.assign (s.str());

    return *this;

}

BaseExc &

BaseExc::append (std::stringstream &s)

{

    _message.append (s.str());

    return *this;

}

const std::string &

BaseExc::message() const

{

  return _message;

}

BaseExc &

BaseExc::operator = (std::stringstream &s)

{

    return assign (s);

}

BaseExc &

BaseExc::operator += (std::stringstream &s)

{

    return append (s);

}

BaseExc &

BaseExc::assign (const char *s)

{

    _message.assign(s);

    return *this;

}

BaseExc &

BaseExc::operator = (const char *s)

{

    return assign(s);

}

BaseExc &

BaseExc::append (const char *s)

{

    _message.append(s);

    return *this;

}

BaseExc &

BaseExc::operator += (const char *s)

{

    return append(s);

}

const std::string &

BaseExc::stackTrace () const

{

    return _stackTrace;

}

IEX_INTERNAL_NAMESPACE_SOURCE_EXIT

#ifdef PLATFORM_WINDOWS

#pragma optimize("", off)

void

iex_debugTrap()

{

    if (0 != getenv("IEXDEBUGTHROW"))

        ::DebugBreak();

}

#else

void

iex_debugTrap()

{

    // how to in Linux?

    if (0 != ::getenv("IEXDEBUGTHROW"))

        __builtin_trap();

}

#endif