mercury/runtime/mercury_mcpp.cpp

//
// Copyright (C) 2000-2001 The University of Melbourne.
// This file may only be copied under the terms of the GNU Library General
// Public License - see the file COPYING.LIB in the Mercury distribution.
//

// mercury_mcpp.cpp - This file defines the system runtime types and
// methods that are used when generating code for the .NET backend.
// It is written using Microsoft's Managed Extensions for C++ (usually
// called Managed C++ or MC++).

// vi: ts=4 sw=4 et tw=0 wm=0

#using <mscorlib.dll>
#using "mercury_il.dll"

    // This line (somehow) stops the compiler from
    // linking in the C library (and it will then complain about main being
    // missing)
extern "C" int _fltused=0;

#include "mercury_mcpp.h"

namespace mercury {

namespace runtime {

	// XXX Exception support is utterly incomplete.
__gc public class Exception : public System::Exception
{
public:
	// XXX there should be a Mercury object here.
    Exception(MR_String Msg) : System::Exception(Msg)
    { 
	// XXX this should set the exception message
    }
};



__gc public class Convert
{
public:
    static MR_Box ToObject(MR_Integer x)
    {
        return ConvertImpl::ToObject(x);
    }
    static MR_Box ToObject(MR_Char x)
    {
        return ConvertImpl::ToObject((MR_Integer) x);
    }
    static MR_Box ToObject(MR_Word x)
    {
        return x;
    }
    static MR_Box ToObject(MR_Float x)
    {
        return ConvertImpl::ToObject(x);
    }


    static MR_Char ToChar(MR_Box x)
    {
        return (MR_Char) ConvertImpl::ToInt32(x);
    }
    static MR_Integer ToInt32(MR_Box x)
    {
        return ConvertImpl::ToInt32(x);
    }
    static MR_Float ToDouble(MR_Box x)
    {
        return ConvertImpl::ToFloat64(x);
    }
    static MR_Word ToArray(MR_Box x)
    {
        return dynamic_cast<MR_Word>(x);
    }
};


__gc public class Errors {
    public:
    static void SORRY(MR_String s) 
    {
        MR_String msg;
        msg = System::String::Concat("Sorry, unimplemented: ", s);
        throw new mercury::runtime::Exception(msg);
    }

    static void fatal_error(MR_String s)
    {
        MR_String msg;
        msg = System::String::Concat("Fatal error: ", s);
        throw new mercury::runtime::Exception(msg);
    }
};


__gc public class Constants {
    public:

        // These constants are duplicated in library/private_builtin.m.
        // They must be kept sychronized.

	// XXX it would be nice if these could be const or an enum.  But
	// there are some problems with accessing the values from IL if we do
	// that because neither alternatives seem to define field names we
	// can reference from IL.

    static int MR_TYPECTOR_REP_ENUM 			= MR_TYPECTOR_REP_ENUM_val;
    static int MR_TYPECTOR_REP_ENUM_USEREQ 		= MR_TYPECTOR_REP_ENUM_USEREQ_val;
    static int MR_TYPECTOR_REP_DU				= MR_TYPECTOR_REP_DU_val;
    static int MR_TYPECTOR_REP_DU_USEREQ		= 3;
    static int MR_TYPECTOR_REP_NOTAG			= 4;
    static int MR_TYPECTOR_REP_NOTAG_USEREQ		= 5;
    static int MR_TYPECTOR_REP_EQUIV			= 6;
    static int MR_TYPECTOR_REP_EQUIV_VAR		= 7;
    static int MR_TYPECTOR_REP_INT		    	= 8;
    static int MR_TYPECTOR_REP_CHAR		    	= 9;
    static int MR_TYPECTOR_REP_FLOAT			=10;
    static int MR_TYPECTOR_REP_STRING			=11;
    static int MR_TYPECTOR_REP_PRED		    	=12;
	// MR_TYPECTOR_REP_UNIV is unused - it is retained
	// only for backwards compatability.
    static int MR_TYPECTOR_REP_UNIV		    	=13;
    static int MR_TYPECTOR_REP_VOID		    	=14;
    static int MR_TYPECTOR_REP_C_POINTER		=15;
    static int MR_TYPECTOR_REP_TYPEINFO			=16;
    static int MR_TYPECTOR_REP_TYPECLASSINFO	=17;
    static int MR_TYPECTOR_REP_ARRAY			=18;
    static int MR_TYPECTOR_REP_SUCCIP			=19;
    static int MR_TYPECTOR_REP_HP				=20;
    static int MR_TYPECTOR_REP_CURFR			=21;
    static int MR_TYPECTOR_REP_MAXFR			=22;
    static int MR_TYPECTOR_REP_REDOFR			=23;
    static int MR_TYPECTOR_REP_REDOIP			=24;
    static int MR_TYPECTOR_REP_TRAIL_PTR		=25;
    static int MR_TYPECTOR_REP_TICKET			=26;
    static int MR_TYPECTOR_REP_NOTAG_GROUND		=27;
    static int MR_TYPECTOR_REP_NOTAG_GROUND_USEREQ	=28;
    static int MR_TYPECTOR_REP_EQUIV_GROUND		=29;

    static int MR_SECTAG_NONE				= 0;
    static int MR_SECTAG_LOCAL				= 1;
    static int MR_SECTAG_REMOTE				= 2;
};

__gc public class Environment
{
public:
};

__gc public class Commit : public System::Exception
{
public:
};

}

}