Example #1
0
  /**
   * @param <H> is something that handles CallableDescriptor inside
   * @return
   */
  @NotNull
  public static <H> Collection<H> extractMembersOverridableInBothWays(
      @NotNull H overrider,
      @NotNull @Mutable Collection<H> extractFrom,
      @NotNull Function1<H, CallableDescriptor> descriptorByHandle,
      @NotNull Function1<H, Unit> onConflict) {
    Collection<H> overridable = new ArrayList<H>();
    overridable.add(overrider);
    CallableDescriptor overriderDescriptor = descriptorByHandle.invoke(overrider);
    for (Iterator<H> iterator = extractFrom.iterator(); iterator.hasNext(); ) {
      H candidate = iterator.next();
      CallableDescriptor candidateDescriptor = descriptorByHandle.invoke(candidate);
      if (overrider == candidate) {
        iterator.remove();
        continue;
      }

      OverrideCompatibilityInfo.Result finalResult =
          getBothWaysOverridability(overriderDescriptor, candidateDescriptor);

      if (finalResult == OVERRIDABLE) {
        overridable.add(candidate);
        iterator.remove();
      } else if (finalResult == CONFLICT) {
        onConflict.invoke(candidate);
        iterator.remove();
      }
    }
    return overridable;
  }
Example #2
0
 /**
  * Given a fake override, finds any declaration of it in the overridden descriptors. Keep in mind
  * that there may be many declarations of the fake override in the supertypes, this method finds
  * just the only one. TODO: probably all call-sites of this method are wrong, they should handle
  * all super-declarations
  */
 @NotNull
 @SuppressWarnings("unchecked")
 public static <D extends CallableMemberDescriptor> D unwrapFakeOverride(@NotNull D descriptor) {
   while (descriptor.getKind() == CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
     Collection<? extends CallableMemberDescriptor> overridden =
         descriptor.getOverriddenDescriptors();
     if (overridden.isEmpty()) {
       throw new IllegalStateException(
           "Fake override should have at least one overridden descriptor: " + descriptor);
     }
     descriptor = (D) overridden.iterator().next();
   }
   return descriptor;
 }
Example #3
0
  private static boolean allHasSameContainingDeclaration(
      @NotNull Collection<CallableMemberDescriptor> notOverridden) {
    if (notOverridden.size() < 2) return true;

    final DeclarationDescriptor containingDeclaration =
        notOverridden.iterator().next().getContainingDeclaration();
    return CollectionsKt.all(
        notOverridden,
        new Function1<CallableMemberDescriptor, Boolean>() {
          @Override
          public Boolean invoke(CallableMemberDescriptor descriptor) {
            return descriptor.getContainingDeclaration() == containingDeclaration;
          }
        });
  }