Application: gvSIG desktop

package org.gvsig.expressionevaluator;

import java.util.Iterator;

import org.gvsig.expressionevaluator.Code.Caller.Arguments;

import org.gvsig.tools.visitor.Visitable;

public interface Code extends Visitable {

    public static final int UNDEFINED = -1;

    public static final int CONSTANT = 0;

    public static final int IDENTIFIER = 1;

    public static final int CALLER = 2;

    public interface Constant extends Code {

        public Object value();

    }

    public interface Identifier extends Code {

        public String name();

    }

    public interface Caller extends Code {

        public interface Arguments extends Iterable<Code>, Visitable {

            public int count();

            @Override

            public Iterator<Code> iterator();

            public Code get(int i);

        }

        public static final int FUNCTION = 0;

        public static final int BINARY_OPERATOR = 1;

        public static final int UNARY_OPERATOR = 2;

        public String name();

        public Object call(Interpreter interpreter, Object[] args) throws Exception;

        public Function function();

        public Function function(Function function);

        public Arguments args();

        public int type();

    }

    int code();

}