{--
JVM-Bridge -- bridge from FP languages and others to the Java VM
Copyright (C) 2001 Ashley Yakeley <ashley@semantic.org>

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--}

module Platform.JavaVM.Types.Witness where
{
	import Platform.JavaVM.Types.Types;
	import Data.Witness;
	
	data PrimitiveType t where
	{
		Tboolean :: PrimitiveType Jboolean;
		Tbyte :: PrimitiveType Jbyte;
		Tchar :: PrimitiveType Jchar;
		Tshort :: PrimitiveType Jshort;
		Tint:: PrimitiveType Jint;
		Tlong :: PrimitiveType Jlong;
		Tfloat :: PrimitiveType Jfloat;
		Tdouble :: PrimitiveType Jdouble;
	};
	
	instance Witness PrimitiveType where
	{
		withWitness f t@Tboolean	= f t;
		withWitness f t@Tbyte		= f t;
		withWitness f t@Tchar		= f t;
		withWitness f t@Tshort		= f t;
		withWitness f t@Tint		= f t;
		withWitness f t@Tlong		= f t;
		withWitness f t@Tfloat		= f t;
		withWitness f t@Tdouble		= f t;
	};
	
	instance TotalWitness PrimitiveType where
	{
		matchWitnessF Tboolean Tboolean = Just id;
		matchWitnessF Tbyte Tbyte = Just id;
		matchWitnessF Tchar Tchar = Just id;
		matchWitnessF Tshort Tshort = Just id;
		matchWitnessF Tint Tint = Just id;
		matchWitnessF Tlong Tlong = Just id;
		matchWitnessF Tfloat Tfloat = Just id;
		matchWitnessF Tdouble Tdouble = Just id;
		matchWitnessF _ _ = Nothing;
	};
	
	instance Is PrimitiveType Jboolean where
	{
		witness = Tboolean;
	};
	
	instance Is PrimitiveType Jbyte where
	{
		witness = Tbyte;
	};
	
	instance Is PrimitiveType Jchar where
	{
		witness = Tchar;
	};
	
	instance Is PrimitiveType Jshort where
	{
		witness = Tshort;
	};
	
	instance Is PrimitiveType Jint where
	{
		witness = Tint;
	};
	
	instance Is PrimitiveType Jlong where
	{
		witness = Tlong;
	};
	
	instance Is PrimitiveType Jfloat where
	{
		witness = Tfloat;
	};
	
	instance Is PrimitiveType Jdouble where
	{
		witness = Tdouble;
	};
}