serene-simple/src/main/java/serene/simple/builtin/PlusFn.java

package serene.simple.builtin;

import serene.simple.BaseScope;
import serene.simple.SNumber;
import serene.simple.SereneException;


public class PlusFn extends AFn {
  public String fnName() {
    return "+";
  };

  public Object eval(BaseScope scope) throws SereneException{
    SNumber.IOps result = (SNumber.IOps) new SNumber.LongNumber();

    for(Object x: this.arguments()) {
      result = (SNumber.IOps) result.add(x);
    }

    return result.value();
  }
}