Name:
Anonymous
2007-06-03 15:49
ID:xvzgDsaZ
public class Currier<ARG1, ARG2, RET> {
public interface CurriableFunctor<ARG1, ARG2, RET> {
RET evaluate(ARG1 arg1, ARG2 arg2);
}
public interface CurriedFunctor<ARG2, RET> {
RET evaluate(ARG2 arg);
}
final CurriableFunctor<ARG1, ARG2, RET> functor;
public Currier(CurriableFunctor<ARG1, ARG2, RET> fn) { functor = fn; }
public CurriedFunctor<ARG2, RET> curry(final ARG1 arg1) {
return new CurriedFunctor<ARG2, RET>() {
public RET evaluate(ARG2 arg2) {
return functor.evaluate(arg1, arg2);
}
};
}
public static void main(String[] args) {
Currier.CurriableFunctor<Integer, Integer, Integer> add
= new Currier.CurriableFunctor<Integer, Integer, Integer>() {
public Integer evaluate(Integer arg1, Integer arg2) {
return new Integer(arg1.intValue() + arg2.intValue());
}
};
Currier<Integer, Integer, Integer> currier
= new Currier<Integer, Integer, Integer>(add);
Currier.CurriedFunctor<Integer, Integer> add5
= currier.curry(new Integer(5));
System.out.println(add5.evaluate(new Integer(2)));
}
}
Name:
Anonymous
2007-06-04 12:33
ID:QIG4yE5g
curryl = lambda f, x: lambda *a: f(x, *a)
curryr = lambda f, x: lambda *a: f(*list(a) + [x])