xst_traced_action_base.h

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// Common Text Transformation Library
// Copyright (C) 1997-2006 by Igor Kholodov. 
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the
// Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// mailto:cttl@users.sourceforge.net
// http://sourceforge.net/projects/cttl/

// xst_traced_action_base.h

#ifndef _XST_TRACED_ACTION_BASE_H_INCLUDED_
#define _XST_TRACED_ACTION_BASE_H_INCLUDED_

namespace cttl_impl {

class xst_traced_action_base {

private:
    int m_line;

    char const* m_action_name;

protected:
    xst_traced_action_base( int line_, char const* action_name_ )
        :
        m_line( line_ ),
        m_action_name( action_name_ )
    {
    }

    void trace_prolog() const
    {
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
        CTTL_TRACE_DEPOSIT_TEXT( m_line );
        CTTL_TRACE_DEPOSIT_TEXT( "=>" );
        CTTL_TRACE_DEPOSIT_TEXT( m_action_name );
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        xtl_trace_grammar::depth( +1 );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
    }

    template< typename ArgumentT >
    void trace_prolog( ArgumentT const& arg_ ) const
    {
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
        CTTL_TRACE_DEPOSIT_TEXT( m_line );
        CTTL_TRACE_DEPOSIT_TEXT( "=>" );
        CTTL_TRACE_DEPOSIT_TEXT( m_action_name );
        CTTL_TRACE_DEPOSIT_TEXT( '\'' );
        CTTL_TRACE_DEPOSIT_TEXT( xst_scalar_traits< ArgumentT >::identity( arg_ ) );
        CTTL_TRACE_DEPOSIT_TEXT( '\'' );
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        xtl_trace_grammar::depth( +1 );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
    }

    template< typename ResultT >
    void trace_epilog( ResultT const& result_ ) const
    {
        xtl_trace_grammar::depth( -1 );
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
        CTTL_TRACE_DEPOSIT_TEXT( m_line );
        CTTL_TRACE_DEPOSIT_TEXT( "<=" );
        CTTL_TRACE_DEPOSIT_TEXT( m_action_name );
        CTTL_TRACE_DEPOSIT_TEXT( ':' );
        CTTL_TRACE_DEPOSIT_TEXT( xst_non_scalar_traits< ResultT >::identity( result_ ) );
        CTTL_TRACE_DEPOSIT_TEXT( std::endl );
        CTTL_TRACE_DEPOSIT_JUSTIFY();
    }

};  // class xst_traced_action_base


}   // namespace cttl_impl


#endif //_XST_TRACED_ACTION_BASE_H_INCLUDED_

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