程序包 proguard.classfile

类 MethodSignature

  • 所有已实现的接口:
    java.lang.Comparable<Signature>, MethodInfo
    public class MethodSignature
extends Signature
implements MethodInfo
    Represents a Method signature containing a class, method and a descriptor.

    In order to avoid a huge blow-up in memory consumption for analyses that rely heavily on method signatures, e.g. the creation of a call graph, this class provides the ability to cache signatures belonging to concrete Method objects. By using the corresponding computeIfAbsent(Clazz, Method) method, the amount of strings that need to be retained during runtime is reduced.

    • 字段详细资料

      • method

        @Nullable
public final @Nullable java.lang.String method

    • 构造器详细资料

      • MethodSignature

        public MethodSignature​(@Nullable
                       @Nullable java.lang.String internalClassName,
                       @Nullable
                       @Nullable java.lang.String method,
                       @Nullable
                       @Nullable MethodDescriptor descriptor)

      • MethodSignature

        public MethodSignature​(@Nullable
                       @Nullable java.lang.String internalClassName,
                       @Nullable
                       @Nullable java.lang.String method,
                       @Nullable
                       @Nullable java.lang.String descriptor)

      • MethodSignature

        public MethodSignature​(@NotNull
                       @NotNull Clazz clazz,
                       @NotNull
                       @NotNull Method method)

      • MethodSignature

        public MethodSignature​(@NotNull
                       @NotNull Clazz clazz)

      • MethodSignature

        public MethodSignature​(@Nullable
                       @Nullable java.lang.String className)

    • 方法详细资料

      • getReferencedMethod

        public Method getReferencedMethod()
        Returns the Method reference that corresponds to the method represented by this MethodSignature or null if no reference is available (e.g. the methhod or its class were missing).

      • computeIfAbsent

        public static MethodSignature computeIfAbsent​(Clazz clazz,
                                              Method method)
        Get the singleton MethodSignature object for this specific Method. If it is not yet available in the cache, it will be newly instantiated.
        参数:
        clazz - The class containing the target method
        method - The method whose signature is to be generated
        返回:
        The cached or newly generated MethodSignature object

      • isIncomplete

        public boolean isIncomplete()
        从类复制的说明: Signature
        Check if this signature is missing information.
        指定者:
        isIncomplete 在类中 Signature

      • clearCache

        public static void clearCache()
        Remove all currently cached MethodSignature objects from the cache, allowing them to be removed by the garbage collector.

      • matchesIgnoreNull

        public static boolean matchesIgnoreNull​(MethodSignature signature,
                                        MethodSignature wildcard)
        Fuzzy check if two MethodSignature objects are equal. If any pattern field is null, its value in the matched object does not influence the check result, providing a way to create a wildcard MethodSignature that e.g. matches several methods of a class that have the same name but a different MethodDescriptor.
        参数:
        signature - The MethodSignature to be compared
        wildcard - The MethodSignature pattern to be matched against
        返回:
        true if the two objects match

      • matchesIgnoreNullAndDollar

        public static boolean matchesIgnoreNullAndDollar​(MethodSignature signature,
                                                 MethodSignature wildcard)
        Fuzzy check like {@link .matchesIgnoreNull(MethodSignature)} but allows dollar signs in type strings. Usually the notation for inner classes is com/example/Foo$Bar, but sometimes external systems call this class com/example/Foo/Bar. These two names correspond to the same class and thus should be treated as the same if they appear in a MethodSignature. If it is to be expected that this situation may occur, this method should be preferred over {@link .matchesIgnoreNull(MethodSignature)} to avoid false negatives.
        参数:
        signature - The MethodSignature to be compared
        wildcard - The MethodSignature pattern to be matched against
        返回:
        true if the two objects match

      • equals

        public boolean equals​(java.lang.Object o)
        覆盖:
        equals 在类中 Signature

      • getMethodName

        @Nullable
public @Nullable java.lang.String getMethodName()
        从接口复制的说明: MethodInfo
        Returns the method's name.
        指定者:
        getMethodName 在接口中 MethodInfo