1 /* 2 * Copyright (C) 2019 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.hilt.processor.internal.generatesrootinput; 18 19 import static net.ltgt.gradle.incap.IncrementalAnnotationProcessorType.ISOLATING; 20 21 import com.google.auto.service.AutoService; 22 import com.google.common.collect.ImmutableSet; 23 import dagger.hilt.processor.internal.BaseProcessor; 24 import dagger.hilt.processor.internal.ClassNames; 25 import dagger.hilt.processor.internal.ProcessorErrors; 26 import java.util.Set; 27 import javax.annotation.processing.Processor; 28 import javax.lang.model.element.Element; 29 import javax.lang.model.element.ElementKind; 30 import javax.lang.model.element.TypeElement; 31 import net.ltgt.gradle.incap.IncrementalAnnotationProcessor; 32 33 /** 34 * Processes the annotations annotated with {@link dagger.hilt.GeneratesRootInput} which generate 35 * input for components and should be processed before component creation. 36 */ 37 @IncrementalAnnotationProcessor(ISOLATING) 38 @AutoService(Processor.class) 39 public final class GeneratesRootInputProcessor extends BaseProcessor { 40 41 @Override getSupportedAnnotationTypes()42 public Set<String> getSupportedAnnotationTypes() { 43 return ImmutableSet.of(ClassNames.GENERATES_ROOT_INPUT.toString()); 44 } 45 46 @Override processEach(TypeElement annotation, Element element)47 public void processEach(TypeElement annotation, Element element) throws Exception { 48 ProcessorErrors.checkState( 49 element.getKind().equals(ElementKind.ANNOTATION_TYPE), 50 element, 51 "%s should only annotate other annotations. However, it was found annotating %s", 52 annotation, 53 element); 54 55 new GeneratesRootInputPropagatedDataGenerator(this.getProcessingEnv(), element).generate(); 56 } 57 } 58