1 /* 2 * Copyright (C) 2016 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 static com.google.common.base.Preconditions.checkArgument; 20 21 import com.google.auto.common.MoreElements; 22 import com.google.common.collect.ImmutableSet; 23 import java.lang.annotation.Annotation; 24 import java.util.Set; 25 import javax.annotation.processing.Messager; 26 import javax.inject.Inject; 27 import javax.lang.model.element.ExecutableElement; 28 29 /** A step that validates all binding methods that were not validated while processing modules. */ 30 final class BindingMethodProcessingStep extends TypeCheckingProcessingStep<ExecutableElement> { 31 32 private final Messager messager; 33 private final AnyBindingMethodValidator anyBindingMethodValidator; 34 35 @Inject BindingMethodProcessingStep( Messager messager, AnyBindingMethodValidator anyBindingMethodValidator)36 BindingMethodProcessingStep( 37 Messager messager, AnyBindingMethodValidator anyBindingMethodValidator) { 38 super(MoreElements::asExecutable); 39 this.messager = messager; 40 this.anyBindingMethodValidator = anyBindingMethodValidator; 41 } 42 43 @Override annotations()44 public Set<? extends Class<? extends Annotation>> annotations() { 45 return anyBindingMethodValidator.methodAnnotations(); 46 } 47 48 @Override process( ExecutableElement method, ImmutableSet<Class<? extends Annotation>> annotations)49 protected void process( 50 ExecutableElement method, ImmutableSet<Class<? extends Annotation>> annotations) { 51 checkArgument( 52 anyBindingMethodValidator.isBindingMethod(method), 53 "%s is not annotated with any of %s", 54 method, 55 annotations()); 56 if (!anyBindingMethodValidator.wasAlreadyValidated(method)) { 57 anyBindingMethodValidator.validate(method).printMessagesTo(messager); 58 } 59 } 60 } 61