Method eval

src/bsh/BSHIfStatement.java:33–49

(CallStack callstack, Interpreter interpreter)

    BSHIfStatement(int id) { super(id); }

    public Object eval(CallStack callstack, Interpreter interpreter)  
		throws EvalError
    {
        Object ret = null;

        if( evaluateCondition( 
			(SimpleNode)jjtGetChild(0), callstack, interpreter ) )
            ret = ((SimpleNode)jjtGetChild(1)).eval(callstack, interpreter);
        else
            if(jjtGetNumChildren() > 2)
                ret = ((SimpleNode)jjtGetChild(2)).eval(callstack, interpreter);

        if(ret instanceof ReturnControl)
            return ret;
        else    
            return Primitive.VOID;
    }

    public static boolean evaluateCondition(
		SimpleNode condExp, CallStack callstack, Interpreter interpreter)