1 /* 2 * Copyright (C) 2021 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.earlyentrypoint; 18 19 import static dagger.internal.codegen.extension.DaggerStreams.toImmutableSet; 20 21 import com.google.auto.value.AutoValue; 22 import com.google.common.collect.ImmutableMap; 23 import com.google.common.collect.ImmutableSet; 24 import com.squareup.javapoet.ClassName; 25 import dagger.hilt.processor.internal.AggregatedElements; 26 import dagger.hilt.processor.internal.AnnotationValues; 27 import dagger.hilt.processor.internal.ClassNames; 28 import dagger.hilt.processor.internal.Processors; 29 import dagger.hilt.processor.internal.root.ir.AggregatedEarlyEntryPointIr; 30 import javax.lang.model.element.AnnotationMirror; 31 import javax.lang.model.element.AnnotationValue; 32 import javax.lang.model.element.TypeElement; 33 import javax.lang.model.util.Elements; 34 35 /** 36 * A class that represents the values stored in an {@link 37 * dagger.hilt.android.internal.earlyentrypoint.AggregatedEarlyEntryPoint} annotation. 38 */ 39 @AutoValue 40 public abstract class AggregatedEarlyEntryPointMetadata { 41 42 /** Returns the aggregating element */ aggregatingElement()43 public abstract TypeElement aggregatingElement(); 44 45 /** Returns the element annotated with {@link dagger.hilt.android.EarlyEntryPoint}. */ earlyEntryPoint()46 public abstract TypeElement earlyEntryPoint(); 47 48 /** Returns metadata for all aggregated elements in the aggregating package. */ from(Elements elements)49 public static ImmutableSet<AggregatedEarlyEntryPointMetadata> from(Elements elements) { 50 return from( 51 AggregatedElements.from( 52 ClassNames.AGGREGATED_EARLY_ENTRY_POINT_PACKAGE, 53 ClassNames.AGGREGATED_EARLY_ENTRY_POINT, 54 elements), 55 elements); 56 } 57 58 /** Returns metadata for each aggregated element. */ from( ImmutableSet<TypeElement> aggregatedElements, Elements elements)59 public static ImmutableSet<AggregatedEarlyEntryPointMetadata> from( 60 ImmutableSet<TypeElement> aggregatedElements, Elements elements) { 61 return aggregatedElements.stream() 62 .map(aggregatedElement -> create(aggregatedElement, elements)) 63 .collect(toImmutableSet()); 64 } 65 toIr(AggregatedEarlyEntryPointMetadata metadata)66 public static AggregatedEarlyEntryPointIr toIr(AggregatedEarlyEntryPointMetadata metadata) { 67 return new AggregatedEarlyEntryPointIr( 68 ClassName.get(metadata.aggregatingElement()), 69 ClassName.get(metadata.earlyEntryPoint())); 70 } 71 create(TypeElement element, Elements elements)72 private static AggregatedEarlyEntryPointMetadata create(TypeElement element, Elements elements) { 73 AnnotationMirror annotationMirror = 74 Processors.getAnnotationMirror(element, ClassNames.AGGREGATED_EARLY_ENTRY_POINT); 75 76 ImmutableMap<String, AnnotationValue> values = 77 Processors.getAnnotationValues(elements, annotationMirror); 78 79 return new AutoValue_AggregatedEarlyEntryPointMetadata( 80 element, 81 elements.getTypeElement(AnnotationValues.getString(values.get("earlyEntryPoint")))); 82 } 83 } 84