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/*
* Copyright (C) 2018 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.writing;
import static com.squareup.javapoet.MethodSpec.constructorBuilder;
import static com.squareup.javapoet.TypeSpec.classBuilder;
import static javax.lang.model.element.Modifier.FINAL;
import static javax.lang.model.element.Modifier.PRIVATE;
import static javax.lang.model.element.Modifier.PUBLIC;
import com.google.common.collect.ImmutableList;
import com.squareup.javapoet.TypeSpec;
import dagger.internal.codegen.base.SourceFileGenerator;
import dagger.internal.codegen.binding.ContributionBinding;
import dagger.internal.codegen.binding.MapKeys;
import dagger.internal.codegen.langmodel.DaggerElements;
import dagger.internal.codegen.langmodel.DaggerTypes;
import javax.annotation.processing.Filer;
import javax.inject.Inject;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
/**
* Generates a class that exposes a non-{@code public} {@link
* ContributionBinding#mapKeyAnnotation()} @MapKey} annotation.
*/
public final class InaccessibleMapKeyProxyGenerator
extends SourceFileGenerator<ContributionBinding> {
private final DaggerTypes types;
private final DaggerElements elements;
@Inject
InaccessibleMapKeyProxyGenerator(
Filer filer, DaggerTypes types, DaggerElements elements, SourceVersion sourceVersion) {
super(filer, elements, sourceVersion);
this.types = types;
this.elements = elements;
}
@Override
public Element originatingElement(ContributionBinding binding) {
// a map key is only ever present on bindings that have a binding element
return binding.bindingElement().get();
}
@Override
public ImmutableList<TypeSpec.Builder> topLevelTypes(ContributionBinding binding) {
return MapKeys.mapKeyFactoryMethod(binding, types, elements)
.map(
method ->
classBuilder(MapKeys.mapKeyProxyClassName(binding))
.addModifiers(PUBLIC, FINAL)
.addMethod(constructorBuilder().addModifiers(PRIVATE).build())
.addMethod(method))
.map(ImmutableList::of)
.orElse(ImmutableList.of());
}
}
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