1 /* 2 * Copyright (C) 2015 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.base; 18 19 import static com.google.auto.common.MoreTypes.isType; 20 21 import com.google.auto.common.MoreTypes; 22 import com.google.common.collect.ImmutableSet; 23 import dagger.Lazy; 24 import dagger.MembersInjector; 25 import dagger.producers.Produced; 26 import dagger.producers.Producer; 27 import java.util.Set; 28 import javax.inject.Provider; 29 import javax.lang.model.type.TypeMirror; 30 31 /** 32 * A collection of utility methods for dealing with Dagger framework types. A framework type is any 33 * type that the framework itself defines. 34 */ 35 public final class FrameworkTypes { 36 private static final ImmutableSet<Class<?>> PROVISION_TYPES = 37 ImmutableSet.of(Provider.class, Lazy.class, MembersInjector.class); 38 39 // NOTE(beder): ListenableFuture is not considered a producer framework type because it is not 40 // defined by the framework, so we can't treat it specially in ordinary Dagger. 41 private static final ImmutableSet<Class<?>> PRODUCTION_TYPES = 42 ImmutableSet.of(Produced.class, Producer.class); 43 44 /** Returns true if the type represents a producer-related framework type. */ isProducerType(TypeMirror type)45 public static boolean isProducerType(TypeMirror type) { 46 return isType(type) && typeIsOneOf(PRODUCTION_TYPES, type); 47 } 48 49 /** Returns true if the type represents a framework type. */ isFrameworkType(TypeMirror type)50 public static boolean isFrameworkType(TypeMirror type) { 51 return isType(type) 52 && (typeIsOneOf(PROVISION_TYPES, type) 53 || typeIsOneOf(PRODUCTION_TYPES, type)); 54 } 55 typeIsOneOf(Set<Class<?>> classes, TypeMirror type)56 private static boolean typeIsOneOf(Set<Class<?>> classes, TypeMirror type) { 57 for (Class<?> clazz : classes) { 58 if (MoreTypes.isTypeOf(clazz, type)) { 59 return true; 60 } 61 } 62 return false; 63 } 64 FrameworkTypes()65 private FrameworkTypes() {} 66 } 67