/**
     * Gets the optional preprocessor for configuration values.
     *
     * @return The preprocessor for configuration values or {@code null} if none.
     */
    BeanConfigurationValuePreprocessor getValuePreprocessor();

    /**
     * Sets the optional preprocessor for configuration values.
     *
     * @param valuePreprocessor The preprocessor for configuration values, may be {@code null} if unneeded.

    /**
     * Preprocesses the specified bean configuration value. The optional type provided to this method is a hint (not a
     * requirement) for the preprocessor to resolve the value to a compatible value or a (string) value than can be
     * unmarshalled into that type. The preprocessor is not required to perform any type conversion but should rather
     * filter out incompatible values from its result.
     *

    void testPreAndPostProcessing() throws BeanConfigurationException {
        SomeBean bean = new SomeBean();

        Xpp3Dom config = toConfig("<file>${test}</file>");

        BeanConfigurationValuePreprocessor preprocessor = (value, type) -> {
            if (value != null && value.startsWith("${") && value.endsWith("}")) {
                return value.substring(2, value.length() - 1);
            }
            return value;
        };

        private final BeanConfigurationValuePreprocessor preprocessor;

        private final BeanConfigurationPathTranslator translator;

        BeanExpressionEvaluator(BeanConfigurationRequest request) {
            preprocessor = request.getValuePreprocessor();
            translator = request.getPathTranslator();
        }

        @Override

	-v
		Print debug output.

Input language:

The assembler uses mostly the same syntax for all architectures,
the main variation having to do with addressing modes. Input is
run through a simplified C preprocessor that implements #include,
#define, #ifdef/endif, but not #if or ##.

For more information, see https://golang.org/doc/asm.
*/

    void testPreAndPostProcessing() throws BeanConfigurationException {
        SomeBean bean = new SomeBean();

        Xpp3Dom config = toConfig("<file>${test}</file>");

        BeanConfigurationValuePreprocessor preprocessor = (value, type) -> {
            if (value != null && value.startsWith("${") && value.endsWith("}")) {
                return value.substring(2, value.length() - 1);
            }
            return value;
        };