# Классы как зависимости { #classes-as-dependencies }

Прежде чем углубиться в систему **Внедрения Зависимостей**, давайте обновим предыдущий пример.

## `dict` из предыдущего примера { #a-dict-from-the-previous-example }

В предыдущем примере мы возвращали `dict` из нашей зависимости («dependable»):

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}

Но затем мы получаем `dict` в параметре `commons` *функции-обработчика пути*.

Date: Summary no class cycles class cycle class cycles class layers classes (using external classes) grouped in packages no package cycles package cycle package cycles no package packages Type Number of classes Averaged (maximum) size in bytes Averaged (maximum) number of usage by other classes Averaged (maximum) number of used internal classes Averaged (maximum) number of used external clasess Interfaces Abstract classes Concrete classes Cycles Name Number of classes Best Fragment Size Girth Radius Diameter...

                            .map(classes::get)
                            .filter(this::implementsNamingConvention)
                            .collect(Collectors.toSet())
                    )
                );

            final Map<String, Set<Class<?>>> suffixToBaseClass;
            if (classes.isEmpty()) {
                // Don't load base classes if we don't have any tests.

 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code
 * AutoValue_Foo}) can be excluded using <code>ignoreClasses({@link #UNDERSCORE_IN_NAME})</code>.
 *

     *       <td>{@code /home/user/myproject/target/classes}</td>
     *       <td>No explicit path → use output directory</td>
     *     </tr>
     *     <tr>
     *       <td>{@code Optional.of(Path.of("META-INF"))}</td>
     *       <td>{@code /home/user/myproject/target/classes}</td>
     *       <td>{@code /home/user/myproject/target/classes/META-INF}</td>

        for (String each : violatingClasses) {
            violationsExcludes.add(each);
        }
    }

    public void ignoreJarHellWithJDK(String... classes) {
        for (String each : classes) {
            jdkJarHellExcludes.add(each);
        }
    }

    @Input
    public Set<String> getJdkJarHellExcludes() {
        return jdkJarHellExcludes;
    }

 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code
 * AutoValue_Foo}) can be excluded using <code>ignoreClasses({@link #UNDERSCORE_IN_NAME})</code>.
 *

     */
    private static boolean isApplicable(Method method, Class<?>... classes) {
        Class<?>[] methodArgs = method.getParameterTypes();

        if (methodArgs.length != classes.length) {
            return false;
        }

        for (int i = 0; i < classes.length; ++i) {
            if (!isMethodInvocationConvertible(methodArgs[i], classes[i])) {
                return false;
            }
        }

     * preventing deserialization of arbitrary classes that could lead to RCE vulnerabilities.
     * Only explicitly registered classes can be serialized/deserialized.
     * </p>
     */
    public DataSerializer() {
        kryoThreadLocal = ThreadLocal.withInitial(() -> {
            final Kryo kryo = new Kryo();
            // Enable registration requirement for security - only registered classes can be deserialized

      if (lastDollarSign != -1) {
        String innerClassName = className.substring(lastDollarSign + 1);
        // local and anonymous classes are prefixed with number (1,2,3...), anonymous classes are
        // entirely numeric whereas local classes have the user supplied name as a suffix
        return CharMatcher.inRange('0', '9').trimLeadingFrom(innerClassName);
      }
      String packageName = getPackageName();