assertThat(annotation, notNullValue());
        assertThat(annotation.value(), equalTo("test"));
        assertThat(annotation.values(), equalTo(new String[]{"1", "2"}));
        assertThat(annotation.enumValue(), equalTo(AnnotationEnum.A));
        assertThat(annotation.enumValues(), equalTo(new AnnotationEnum[]{AnnotationEnum.A, AnnotationEnum.B}));
        assertThat(annotation.number(), equalTo(1));

        }

        @Override
        public String with(Syntax syntax) {
            return literal.toString();
        }
    }

    private static class EnumValue implements ExpressionValue {
        final Enum<?> literal;

        EnumValue(Object literal) {
            this.literal = Cast.uncheckedNonnullCast(literal);
        }

        @Override
        public String with(Syntax syntax) {