| /* |
| * Copyright (C) 2016 The Dagger Authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package dagger.internal.codegen.base; |
| |
| import static com.google.auto.common.AnnotationMirrors.getAnnotationValue; |
| import static dagger.internal.codegen.base.MoreAnnotationValues.asAnnotationValues; |
| import static dagger.internal.codegen.extension.DaggerStreams.toImmutableList; |
| |
| import com.google.auto.common.AnnotationMirrors; |
| import com.google.common.base.Equivalence; |
| import com.google.common.collect.ImmutableList; |
| import java.util.Optional; |
| import javax.lang.model.element.AnnotationMirror; |
| import javax.lang.model.element.Name; |
| import javax.lang.model.type.TypeMirror; |
| |
| /** |
| * A utility class for working with {@link AnnotationMirror} instances, similar to {@link |
| * AnnotationMirrors}. |
| */ |
| public final class MoreAnnotationMirrors { |
| |
| private MoreAnnotationMirrors() {} |
| |
| /** |
| * Wraps an {@link Optional} of a type in an {@code Optional} of a {@link Equivalence.Wrapper} for |
| * that type. |
| */ |
| public static Optional<Equivalence.Wrapper<AnnotationMirror>> wrapOptionalInEquivalence( |
| Optional<AnnotationMirror> optional) { |
| return optional.map(AnnotationMirrors.equivalence()::wrap); |
| } |
| |
| /** |
| * Unwraps an {@link Optional} of a {@link Equivalence.Wrapper} into an {@code Optional} of the |
| * underlying type. |
| */ |
| public static Optional<AnnotationMirror> unwrapOptionalEquivalence( |
| Optional<Equivalence.Wrapper<AnnotationMirror>> wrappedOptional) { |
| return wrappedOptional.map(Equivalence.Wrapper::get); |
| } |
| |
| public static Name simpleName(AnnotationMirror annotationMirror) { |
| return annotationMirror.getAnnotationType().asElement().getSimpleName(); |
| } |
| |
| /** |
| * Returns the list of types that is the value named {@code name} from {@code annotationMirror}. |
| * |
| * @throws IllegalArgumentException unless that member represents an array of types |
| */ |
| public static ImmutableList<TypeMirror> getTypeListValue( |
| AnnotationMirror annotationMirror, String name) { |
| return asAnnotationValues(getAnnotationValue(annotationMirror, name)) |
| .stream() |
| .map(MoreAnnotationValues::asType) |
| .collect(toImmutableList()); |
| } |
| } |