Package com.google.errorprone.refaster.annotation

Annotation Type Matches

  • @Target({PARAMETER,METHOD})
@Retention(SOURCE)
public @interface Matches
    Specify an error-prone Matcher to further restrict what expressions are matched by the annotated parameter.

    Note: The @Matches annotation should only go on the @BeforeTemplate. For example: 

    
 class SingletonList {
   {@literal @}BeforeTemplate
   public <E> List<E> before({@literal @}Matches(IsNonNullMatcher.class) E e) {
     return Collections.singletonList(e);
   }

   {@literal @}AfterTemplate
   public <E> List<E> after(E e) {
     return ImmutableList.of(e);
   }
 }