Application: gvSIG desktop

package org.gvsig.expressionevaluator.impl.function.programming;

import org.apache.commons.lang3.Range;

import org.gvsig.expressionevaluator.Code;

import org.gvsig.expressionevaluator.Codes;

import org.gvsig.expressionevaluator.Function;

import org.gvsig.expressionevaluator.Interpreter;

import org.gvsig.expressionevaluator.impl.DefaultInterpreter;

import org.gvsig.expressionevaluator.spi.AbstractFunction;

public class CodeBlockFunction extends AbstractFunction {

    public static final String NAME = "BLOCK";

    public CodeBlockFunction() {

        super(Function.GROUP_PROGRAMMING, 

                NAME, 

                Range.between(1,Integer.MAX_VALUE),

                "Evaluate each of the arguments sequentially.",

                NAME+"( {{arguments...}} )",

                null,

                "Object",

                false

        );

    }

    @Override

    public boolean isHidden() {

      return true;

    }

    @Override

    public boolean useArgumentsInsteadObjects() {

        return true;

    }

    @Override

    public boolean allowConstantFolding() {

        return false;

    }

    @Override

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

        throw new UnsupportedOperationException("Not supported yet.");

    }

    @Override

    public Object call(Interpreter interpreter, Codes args) throws Exception {

        Object value = null;

        for (Code arg : args) {

            // LLamamos a runCode para que no atrape los returns.

            value = ((DefaultInterpreter)interpreter).runCode(arg);

        }

        return value;

    }

}