import japicmp.model.JApiField
import japicmp.model.JApiMethod


private
typealias PredicateVisitor = GenericVisitorAdapter<Boolean, Unit?>


internal
object JavaSourceQueries {

    fun isOverrideMethod(method: JApiMethod): JavaSourceQuery<Boolean> =
        JavaSourceQuery(
            false,
            object : PredicateVisitor() {
                override fun visit(declaration: MethodDeclaration, arg: Unit?): Boolean? {

@ElementTypesAreNonnullByDefault
public final class Predicates {
  private Predicates() {}

  // TODO(kevinb): considering having these implement a VisitablePredicate
  // interface which specifies an accept(PredicateVisitor) method.

  /** Returns a predicate that always evaluates to {@code true}. */
  @GwtCompatible(serializable = true)
  public static <T extends @Nullable Object> Predicate<T> alwaysTrue() {

@ElementTypesAreNonnullByDefault
public final class Predicates {
  private Predicates() {}

  // TODO(kevinb): considering having these implement a VisitablePredicate
  // interface which specifies an accept(PredicateVisitor) method.

  /** Returns a predicate that always evaluates to {@code true}. */
  @GwtCompatible(serializable = true)
  public static <T extends @Nullable Object> Predicate<T> alwaysTrue() {