Method unaryOperation

src/bsh/BSHUnaryExpression.java:75–87

( Object op, int kind )

    }

    private Object unaryOperation( Object op, int kind ) throws UtilEvalError
    {
        if (op instanceof Boolean || op instanceof Character 
			|| op instanceof Number)
            return primitiveWrapperUnaryOperation( op, kind );

        if ( !(op instanceof Primitive) )
            throw new UtilEvalError( "Unary operation " + tokenImage[kind]
                + " inappropriate for object" );

		
        return Primitive.unaryOperation((Primitive)op, kind);
    }

    private Object primitiveWrapperUnaryOperation(Object val, int kind)
        throws UtilEvalError