81 lines
2.8 KiB
Java
81 lines
2.8 KiB
Java
/*
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* Copyright (C) 2017 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.internal.codegen.base;
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import static dagger.internal.codegen.langmodel.Accessibility.isTypeAccessibleFrom;
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import dagger.internal.codegen.langmodel.Accessibility;
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import java.util.Collection;
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import java.util.List;
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import java.util.function.Predicate;
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import javax.lang.model.element.AnnotationMirror;
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import javax.lang.model.element.AnnotationValue;
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import javax.lang.model.element.VariableElement;
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import javax.lang.model.type.TypeMirror;
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import javax.lang.model.util.SimpleAnnotationValueVisitor8;
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/** Utility class for checking the visibility of an annotation. */
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public final class MapKeyAccessibility extends SimpleAnnotationValueVisitor8<Boolean, Void> {
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private final Predicate<TypeMirror> accessibilityChecker;
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private MapKeyAccessibility(Predicate<TypeMirror> accessibilityChecker) {
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this.accessibilityChecker = accessibilityChecker;
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}
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@Override
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public Boolean visitAnnotation(AnnotationMirror annotation, Void aVoid) {
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// The annotation type is not checked, as the generated code will refer to the @AutoAnnotation
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// generated type which is always public
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return visitValues(annotation.getElementValues().values());
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}
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@Override
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public Boolean visitArray(List<? extends AnnotationValue> values, Void aVoid) {
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return visitValues(values);
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}
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private boolean visitValues(Collection<? extends AnnotationValue> values) {
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return values.stream().allMatch(value -> value.accept(this, null));
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}
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@Override
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public Boolean visitEnumConstant(VariableElement enumConstant, Void aVoid) {
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return accessibilityChecker.test(enumConstant.getEnclosingElement().asType());
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}
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@Override
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public Boolean visitType(TypeMirror type, Void aVoid) {
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return accessibilityChecker.test(type);
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}
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@Override
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protected Boolean defaultAction(Object o, Void aVoid) {
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return true;
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}
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public static boolean isMapKeyAccessibleFrom(
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AnnotationMirror annotation, String accessingPackage) {
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return new MapKeyAccessibility(type -> isTypeAccessibleFrom(type, accessingPackage))
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.visitAnnotation(annotation, null);
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}
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public static boolean isMapKeyPubliclyAccessible(AnnotationMirror annotation) {
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return new MapKeyAccessibility(Accessibility::isTypePubliclyAccessible)
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.visitAnnotation(annotation, null);
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}
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}
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