93 lines
3.5 KiB
Java
93 lines
3.5 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.common.base.Preconditions.checkArgument;
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import static dagger.internal.codegen.base.MoreAnnotationMirrors.wrapOptionalInEquivalence;
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import static dagger.internal.codegen.binding.MapKeys.getMapKey;
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import com.google.auto.common.MoreElements;
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import com.google.auto.common.MoreTypes;
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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 com.google.common.base.Equivalence;
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import com.google.common.collect.Iterables;
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import dagger.Binds;
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import dagger.internal.codegen.base.ContributionType;
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import dagger.internal.codegen.base.ContributionType.HasContributionType;
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import dagger.internal.codegen.langmodel.DaggerTypes;
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import dagger.model.DependencyRequest;
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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.AnnotationMirror;
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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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import javax.lang.model.type.ExecutableType;
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/** The declaration for a delegate binding established by a {@link Binds} method. */
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@AutoValue
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public abstract class DelegateDeclaration extends BindingDeclaration
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implements HasContributionType {
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abstract DependencyRequest delegateRequest();
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abstract Optional<Equivalence.Wrapper<AnnotationMirror>> wrappedMapKey();
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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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/** A {@link DelegateDeclaration} factory. */
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public static final class Factory {
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private final DaggerTypes types;
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private final KeyFactory keyFactory;
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private final DependencyRequestFactory dependencyRequestFactory;
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@Inject
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Factory(
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DaggerTypes types,
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KeyFactory keyFactory,
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DependencyRequestFactory dependencyRequestFactory) {
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this.types = types;
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this.keyFactory = keyFactory;
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this.dependencyRequestFactory = dependencyRequestFactory;
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}
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public DelegateDeclaration create(
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ExecutableElement bindsMethod, TypeElement contributingModule) {
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checkArgument(MoreElements.isAnnotationPresent(bindsMethod, Binds.class));
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ExecutableType resolvedMethod =
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MoreTypes.asExecutable(
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types.asMemberOf(MoreTypes.asDeclared(contributingModule.asType()), bindsMethod));
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DependencyRequest delegateRequest =
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dependencyRequestFactory.forRequiredResolvedVariable(
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Iterables.getOnlyElement(bindsMethod.getParameters()),
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Iterables.getOnlyElement(resolvedMethod.getParameterTypes()));
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return new AutoValue_DelegateDeclaration(
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ContributionType.fromBindingElement(bindsMethod),
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keyFactory.forBindsMethod(bindsMethod, contributingModule),
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Optional.<Element>of(bindsMethod),
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Optional.of(contributingModule),
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delegateRequest,
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wrapOptionalInEquivalence(getMapKey(bindsMethod)));
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}
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}
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}
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