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; 18 19 import com.squareup.javapoet.ClassName; 20 import com.squareup.javapoet.CodeBlock; 21 import dagger.internal.codegen.javapoet.Expression; 22 23 /** A binding expression for the instance of the component itself, i.e. {@code this}. */ 24 final class ComponentInstanceBindingExpression extends SimpleInvocationBindingExpression { 25 private final ClassName componentName; 26 private final ContributionBinding binding; 27 ComponentInstanceBindingExpression(ResolvedBindings resolvedBindings, ClassName componentName)28 ComponentInstanceBindingExpression(ResolvedBindings resolvedBindings, ClassName componentName) { 29 super(resolvedBindings); 30 this.componentName = componentName; 31 this.binding = resolvedBindings.contributionBinding(); 32 } 33 34 @Override getDependencyExpression(ClassName requestingClass)35 Expression getDependencyExpression(ClassName requestingClass) { 36 return Expression.create( 37 binding.key().type(), 38 componentName.equals(requestingClass) 39 ? CodeBlock.of("this") 40 : CodeBlock.of("$T.this", componentName)); 41 } 42 } 43