tclprocwrapper.h

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00001 
00004 
00005 //
00006 // Copyright (c) 2002-2004 California Institute of Technology
00007 // Copyright (c) 2004-2007 University of Southern California
00008 // Rob Peters <rjpeters at usc dot edu>
00009 //
00010 // created: Wed Jan 30 11:41:47 2002
00011 // commit: $Id: tclprocwrapper.h 10065 2007-04-12 05:54:56Z rjpeters $
00012 // $HeadURL: file:///lab/rjpeters/svnrepo/code/trunk/groovx/src/tcl-io/tclprocwrapper.h $
00013 //
00014 // --------------------------------------------------------------------
00015 //
00016 // This file is part of GroovX.
00017 //   [http://ilab.usc.edu/rjpeters/groovx/]
00018 //
00019 // GroovX is free software; you can redistribute it and/or modify it
00020 // under the terms of the GNU General Public License as published by
00021 // the Free Software Foundation; either version 2 of the License, or
00022 // (at your option) any later version.
00023 //
00024 // GroovX is distributed in the hope that it will be useful, but
00025 // WITHOUT ANY WARRANTY; without even the implied warranty of
00026 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00027 // General Public License for more details.
00028 //
00029 // You should have received a copy of the GNU General Public License
00030 // along with GroovX; if not, write to the Free Software Foundation,
00031 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
00032 //
00034 
00035 #ifndef GROOVX_TCL_IO_TCLPROCWRAPPER_H_UTC20050712162004_DEFINED
00036 #define GROOVX_TCL_IO_TCLPROCWRAPPER_H_UTC20050712162004_DEFINED
00037 
00038 #include "io/io.h"
00039 
00040 #include "tcl/interp.h"
00041 
00042 #include "rutz/fstring.h"
00043 
00044 namespace tcl
00045 {
00046   class ProcWrapper;
00047 }
00048 
00050 class tcl::ProcWrapper : public io::serializable
00051 {
00052 private:
00053   ProcWrapper(const ProcWrapper&);
00054   ProcWrapper& operator=(const ProcWrapper&);
00055 
00056   tcl::interpreter itsInterp;
00057   const rutz::fstring itsName;
00058   rutz::fstring itsArgs;
00059   rutz::fstring itsBody;
00060 
00061 public:
00063   ProcWrapper(const tcl::interpreter& intp);
00064 
00066   ProcWrapper(const tcl::interpreter& intp, const rutz::fstring& name);
00067 
00068   virtual ~ProcWrapper() throw();
00069 
00070   virtual void read_from(io::reader& reader);
00071   virtual void write_to(io::writer& writer) const;
00072 
00075   void define(const rutz::fstring& args, const rutz::fstring& body);
00076 
00078   bool isNoop() const;
00079 
00080   // Just run the code, but don't yet extract a result from the interpreter
00081   void invoke(const rutz::fstring& args);
00082 
00083   template <class T>
00084   T call(const rutz::fstring& args)
00085   {
00086     // might throw if Tcl code raises an error:
00087     invoke(args);
00088 
00089     // might throw if conversion to T fails:
00090     return itsInterp.template get_result<T>();
00091   }
00092 
00093   const rutz::fstring& name() const { return itsName; }
00094   const rutz::fstring& args() const { return itsArgs; }
00095   const rutz::fstring& body() const { return itsBody; }
00096 
00097   rutz::fstring fullSpec() const;
00098 };
00099 
00100 static const char __attribute__((used)) vcid_groovx_tcl_io_tclprocwrapper_h_utc20050712162004[] = "$Id: tclprocwrapper.h 10065 2007-04-12 05:54:56Z rjpeters $ $HeadURL: file:
00101 #endif // !GROOVX_TCL_IO_TCLPROCWRAPPER_H_UTC20050712162004_DEFINED

The software described here is Copyright (c) 1998-2005, Rob Peters.
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