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.writing; 18 19 import static dagger.internal.codegen.binding.BindingRequest.bindingRequest; 20 import static dagger.internal.codegen.javapoet.CodeBlocks.anonymousProvider; 21 import static dagger.model.RequestKind.INSTANCE; 22 23 import com.squareup.javapoet.ClassName; 24 import com.squareup.javapoet.CodeBlock; 25 import dagger.internal.codegen.binding.BindingRequest; 26 import dagger.internal.codegen.binding.ContributionBinding; 27 import dagger.internal.codegen.javapoet.Expression; 28 import dagger.internal.codegen.writing.FrameworkFieldInitializer.FrameworkInstanceCreationExpression; 29 30 /** 31 * A {@link javax.inject.Provider} creation expression for an anonymous inner class whose 32 * {@code get()} method returns the expression for an instance binding request for its key. 33 */ 34 final class AnonymousProviderCreationExpression 35 implements FrameworkInstanceCreationExpression { 36 private final ContributionBinding binding; 37 private final ComponentBindingExpressions componentBindingExpressions; 38 private final ClassName requestingClass; 39 AnonymousProviderCreationExpression( ContributionBinding binding, ComponentBindingExpressions componentBindingExpressions, ClassName requestingClass)40 AnonymousProviderCreationExpression( 41 ContributionBinding binding, 42 ComponentBindingExpressions componentBindingExpressions, 43 ClassName requestingClass) { 44 this.binding = binding; 45 this.componentBindingExpressions = componentBindingExpressions; 46 this.requestingClass = requestingClass; 47 } 48 49 @Override creationExpression()50 public CodeBlock creationExpression() { 51 BindingRequest instanceExpressionRequest = bindingRequest(binding.key(), INSTANCE); 52 Expression instanceExpression = 53 componentBindingExpressions.getDependencyExpression( 54 instanceExpressionRequest, 55 // Not a real class name, but the actual requestingClass is an inner class within the 56 // given class, not that class itself. 57 requestingClass.nestedClass("Anonymous")); 58 return anonymousProvider(instanceExpression); 59 } 60 } 61