Class DescriptorUtils

java.lang.Object
org.jboss.classfilewriter.util.DescriptorUtils

public class DescriptorUtils extends Object
Utility class for working with method descriptors
Author:
Stuart Douglas
  • Constructor Details

    • DescriptorUtils

      public DescriptorUtils()
  • Method Details

    • makeDescriptor

      public static String makeDescriptor(String className)
      Changes a class name to the internal form suitable for use in a descriptor string.

      e.g. java.lang.String => Ljava/lang/String;

    • makeDescriptor

      public static String makeDescriptor(Class<?> c)
    • makeDescriptor

      public static String makeDescriptor(Constructor<?> c)
    • parameterDescriptors

      public static String[] parameterDescriptors(String methodDescriptor)
      returns an array of String representations of the parameter types. Primitives are returned as their native representations, while clases are returned in the internal descriptor form e.g. Ljava/lang/Integer;
    • parameterDescriptors

      public static String[] parameterDescriptors(Method m)
    • parameterDescriptors

      public static String[] parameterDescriptors(Class<?>[] parameters)
    • returnType

      public static String returnType(String methodDescriptor)
    • isPrimitive

      public static boolean isPrimitive(String descriptor)
      returns true if the descriptor represents a primitive type
    • isWide

      public static boolean isWide(String descriptor)
      returns true if the descriptor represents a long or a double
    • isWide

      public static boolean isWide(Class<?> cls)
      returns true if the class represents a long or a double
    • methodDescriptor

      public static String methodDescriptor(Method m)
    • methodDescriptor

      public static String methodDescriptor(String[] parameters, String returnType)
    • validateDescriptor

      public static String validateDescriptor(String descriptor)
      performs basic validation on a descriptor