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58 lines
2.0 KiB
58 lines
2.0 KiB
/*
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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.writing;
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import static com.google.common.base.Preconditions.checkArgument;
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import com.squareup.javapoet.AnnotationSpec;
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import dagger.internal.codegen.binding.Binding;
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import java.util.Optional;
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import javax.lang.model.element.AnnotationMirror;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.Name;
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final class GwtCompatibility {
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/**
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* Returns a {@code @GwtIncompatible} annotation that is applied to {@code binding}'s {@link
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* Binding#bindingElement()} or any enclosing type.
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*/
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static Optional<AnnotationSpec> gwtIncompatibleAnnotation(Binding binding) {
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checkArgument(binding.bindingElement().isPresent());
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Element element = binding.bindingElement().get();
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while (element != null) {
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Optional<AnnotationSpec> gwtIncompatible =
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element
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.getAnnotationMirrors()
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.stream()
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.filter(annotation -> isGwtIncompatible(annotation))
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.map(AnnotationSpec::get)
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.findFirst();
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if (gwtIncompatible.isPresent()) {
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return gwtIncompatible;
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}
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element = element.getEnclosingElement();
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}
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return Optional.empty();
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}
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private static boolean isGwtIncompatible(AnnotationMirror annotation) {
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Name simpleName = annotation.getAnnotationType().asElement().getSimpleName();
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return simpleName.contentEquals("GwtIncompatible");
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}
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}
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