1 /* 2 * Copyright (C) 2017 The Dagger Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package dagger.internal.codegen.writing; 18 19 import static com.google.common.base.Preconditions.checkArgument; 20 21 import androidx.room.compiler.processing.XAnnotation; 22 import androidx.room.compiler.processing.XElement; 23 import com.squareup.javapoet.AnnotationSpec; 24 import dagger.internal.codegen.binding.Binding; 25 import dagger.internal.codegen.xprocessing.XAnnotations; 26 import java.util.Optional; 27 28 final class GwtCompatibility { 29 30 /** 31 * Returns a {@code @GwtIncompatible} annotation that is applied to {@code binding}'s {@link 32 * Binding#bindingElement()} or any enclosing type. 33 */ gwtIncompatibleAnnotation(Binding binding)34 static Optional<AnnotationSpec> gwtIncompatibleAnnotation(Binding binding) { 35 checkArgument(binding.bindingElement().isPresent()); 36 XElement element = binding.bindingElement().get(); 37 while (element != null) { 38 Optional<AnnotationSpec> gwtIncompatible = 39 element.getAllAnnotations().stream() 40 .filter(GwtCompatibility::isGwtIncompatible) 41 .map(XAnnotations::getAnnotationSpec) 42 .findFirst(); 43 if (gwtIncompatible.isPresent()) { 44 return gwtIncompatible; 45 } 46 element = element.getEnclosingElement(); 47 } 48 return Optional.empty(); 49 } 50 isGwtIncompatible(XAnnotation annotation)51 private static boolean isGwtIncompatible(XAnnotation annotation) { 52 return XAnnotations.getClassName(annotation).simpleName().contentEquals("GwtIncompatible"); 53 } 54 } 55