69 lines
2.1 KiB
Java
69 lines
2.1 KiB
Java
/*
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* Copyright (C) 2016 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.binding;
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import static com.google.auto.common.MoreElements.isAnnotationPresent;
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import static com.google.common.base.Preconditions.checkArgument;
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import com.google.auto.value.AutoValue;
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import com.google.auto.value.extension.memoized.Memoized;
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import dagger.BindsOptionalOf;
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import dagger.model.Key;
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import java.util.Optional;
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import javax.inject.Inject;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.TypeElement;
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/** A {@link BindsOptionalOf} declaration. */
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@AutoValue
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abstract class OptionalBindingDeclaration extends BindingDeclaration {
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/**
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* {@inheritDoc}
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*
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* <p>The key's type is the method's return type, even though the synthetic bindings will be for
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* {@code Optional} of derived types.
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*/
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@Override
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public abstract Key key();
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@Memoized
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@Override
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public abstract int hashCode();
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@Override
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public abstract boolean equals(Object obj);
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static class Factory {
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private final KeyFactory keyFactory;
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@Inject
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Factory(KeyFactory keyFactory) {
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this.keyFactory = keyFactory;
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}
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OptionalBindingDeclaration forMethod(ExecutableElement method, TypeElement contributingModule) {
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checkArgument(isAnnotationPresent(method, BindsOptionalOf.class));
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return new AutoValue_OptionalBindingDeclaration(
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Optional.<Element>of(method),
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Optional.of(contributingModule),
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keyFactory.forBindsOptionalOfMethod(method, contributingModule));
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}
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}
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}
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