| /* |
| * Copyright (C) 2017 The Dagger Authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package dagger.internal.codegen.writing; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| import com.squareup.javapoet.AnnotationSpec; |
| import dagger.internal.codegen.binding.Binding; |
| import java.util.Optional; |
| import javax.lang.model.element.AnnotationMirror; |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.Name; |
| |
| final class GwtCompatibility { |
| |
| /** |
| * Returns a {@code @GwtIncompatible} annotation that is applied to {@code binding}'s {@link |
| * Binding#bindingElement()} or any enclosing type. |
| */ |
| static Optional<AnnotationSpec> gwtIncompatibleAnnotation(Binding binding) { |
| checkArgument(binding.bindingElement().isPresent()); |
| Element element = binding.bindingElement().get(); |
| while (element != null) { |
| Optional<AnnotationSpec> gwtIncompatible = |
| element |
| .getAnnotationMirrors() |
| .stream() |
| .filter(annotation -> isGwtIncompatible(annotation)) |
| .map(AnnotationSpec::get) |
| .findFirst(); |
| if (gwtIncompatible.isPresent()) { |
| return gwtIncompatible; |
| } |
| element = element.getEnclosingElement(); |
| } |
| return Optional.empty(); |
| } |
| |
| private static boolean isGwtIncompatible(AnnotationMirror annotation) { |
| Name simpleName = annotation.getAnnotationType().asElement().getSimpleName(); |
| return simpleName.contentEquals("GwtIncompatible"); |
| } |
| } |