102 lines
3.9 KiB
Java
102 lines
3.9 KiB
Java
/*
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* Copyright (C) 2018 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.checkNotNull;
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import static dagger.internal.codegen.writing.DelegateRequestRepresentation.instanceRequiresCast;
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import com.squareup.javapoet.ClassName;
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import dagger.assisted.Assisted;
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import dagger.assisted.AssistedFactory;
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import dagger.assisted.AssistedInject;
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import dagger.internal.codegen.binding.BindsTypeChecker;
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import dagger.internal.codegen.binding.ComponentDescriptor.ComponentMethodDescriptor;
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import dagger.internal.codegen.binding.ContributionBinding;
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import dagger.internal.codegen.binding.FrameworkType;
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import dagger.internal.codegen.javapoet.Expression;
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import dagger.internal.codegen.langmodel.DaggerElements;
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import dagger.internal.codegen.langmodel.DaggerTypes;
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import dagger.spi.model.BindingKind;
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import dagger.spi.model.RequestKind;
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/** A binding expression that depends on a framework instance. */
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final class DerivedFromFrameworkInstanceRequestRepresentation extends RequestRepresentation {
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private final ContributionBinding binding;
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private final RequestRepresentation frameworkRequestRepresentation;
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private final RequestKind requestKind;
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private final FrameworkType frameworkType;
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private final DaggerTypes types;
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private final BindsTypeChecker bindsTypeChecker;
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@AssistedInject
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DerivedFromFrameworkInstanceRequestRepresentation(
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@Assisted ContributionBinding binding,
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@Assisted RequestRepresentation frameworkRequestRepresentation,
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@Assisted RequestKind requestKind,
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@Assisted FrameworkType frameworkType,
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DaggerTypes types,
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DaggerElements elements) {
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this.binding = binding;
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this.frameworkRequestRepresentation = checkNotNull(frameworkRequestRepresentation);
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this.requestKind = requestKind;
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this.frameworkType = checkNotNull(frameworkType);
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this.types = types;
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this.bindsTypeChecker = new BindsTypeChecker(types, elements);
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}
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@Override
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Expression getDependencyExpression(ClassName requestingClass) {
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Expression expression =
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frameworkType.to(
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requestKind,
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frameworkRequestRepresentation.getDependencyExpression(requestingClass),
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types);
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return requiresTypeCast(expression, requestingClass)
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? expression.castTo(binding.contributedType())
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: expression;
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}
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@Override
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Expression getDependencyExpressionForComponentMethod(
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ComponentMethodDescriptor componentMethod, ComponentImplementation component) {
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Expression expression =
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frameworkType.to(
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requestKind,
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frameworkRequestRepresentation.getDependencyExpressionForComponentMethod(
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componentMethod, component),
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types);
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return requiresTypeCast(expression, component.name())
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? expression.castTo(binding.contributedType())
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: expression;
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}
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private boolean requiresTypeCast(Expression expression, ClassName requestingClass) {
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return binding.kind().equals(BindingKind.DELEGATE)
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&& requestKind.equals(RequestKind.INSTANCE)
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&& instanceRequiresCast(binding, expression, requestingClass, bindsTypeChecker);
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}
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@AssistedFactory
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static interface Factory {
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DerivedFromFrameworkInstanceRequestRepresentation create(
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ContributionBinding binding,
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RequestRepresentation frameworkRequestRepresentation,
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RequestKind requestKind,
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FrameworkType frameworkType);
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}
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}
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