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.validation; 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 public final class BindingMethodProcessingStep 31 extends TypeCheckingProcessingStep<ExecutableElement> { 32 33 private final Messager messager; 34 private final AnyBindingMethodValidator anyBindingMethodValidator; 35 36 @Inject BindingMethodProcessingStep( Messager messager, AnyBindingMethodValidator anyBindingMethodValidator)37 BindingMethodProcessingStep( 38 Messager messager, AnyBindingMethodValidator anyBindingMethodValidator) { 39 super(MoreElements::asExecutable); 40 this.messager = messager; 41 this.anyBindingMethodValidator = anyBindingMethodValidator; 42 } 43 44 @Override annotations()45 public Set<? extends Class<? extends Annotation>> annotations() { 46 return anyBindingMethodValidator.methodAnnotations(); 47 } 48 49 @Override process( ExecutableElement method, ImmutableSet<Class<? extends Annotation>> annotations)50 protected void process( 51 ExecutableElement method, ImmutableSet<Class<? extends Annotation>> annotations) { 52 checkArgument( 53 anyBindingMethodValidator.isBindingMethod(method), 54 "%s is not annotated with any of %s", 55 method, 56 annotations()); 57 if (!anyBindingMethodValidator.wasAlreadyValidated(method)) { 58 anyBindingMethodValidator.validate(method).printMessagesTo(messager); 59 } 60 } 61 } 62