| /* |
| * Copyright (C) 2016 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.validation; |
| |
| import static com.google.auto.common.MoreTypes.asTypeElement; |
| import static dagger.internal.codegen.base.Keys.isValidImplicitProvisionKey; |
| import static dagger.internal.codegen.binding.InjectionAnnotations.injectedConstructors; |
| import static dagger.internal.codegen.validation.BindingElementValidator.AllowsMultibindings.NO_MULTIBINDINGS; |
| import static dagger.internal.codegen.validation.BindingElementValidator.AllowsScoping.NO_SCOPING; |
| import static dagger.internal.codegen.validation.BindingMethodValidator.Abstractness.MUST_BE_ABSTRACT; |
| import static dagger.internal.codegen.validation.BindingMethodValidator.ExceptionSuperclass.NO_EXCEPTIONS; |
| |
| import com.google.common.collect.ImmutableSet; |
| import dagger.BindsOptionalOf; |
| import dagger.Module; |
| import dagger.internal.codegen.binding.InjectionAnnotations; |
| import dagger.internal.codegen.kotlin.KotlinMetadataUtil; |
| import dagger.internal.codegen.langmodel.DaggerElements; |
| import dagger.internal.codegen.langmodel.DaggerTypes; |
| import dagger.producers.ProducerModule; |
| import javax.inject.Inject; |
| import javax.lang.model.element.ExecutableElement; |
| import javax.lang.model.type.TypeMirror; |
| |
| /** A validator for {@link BindsOptionalOf} methods. */ |
| final class BindsOptionalOfMethodValidator extends BindingMethodValidator { |
| |
| private final DaggerTypes types; |
| private final InjectionAnnotations injectionAnnotations; |
| |
| @Inject |
| BindsOptionalOfMethodValidator( |
| DaggerElements elements, |
| DaggerTypes types, |
| KotlinMetadataUtil kotlinMetadataUtil, |
| DependencyRequestValidator dependencyRequestValidator, |
| InjectionAnnotations injectionAnnotations) { |
| super( |
| elements, |
| types, |
| kotlinMetadataUtil, |
| BindsOptionalOf.class, |
| ImmutableSet.of(Module.class, ProducerModule.class), |
| dependencyRequestValidator, |
| MUST_BE_ABSTRACT, |
| NO_EXCEPTIONS, |
| NO_MULTIBINDINGS, |
| NO_SCOPING, |
| injectionAnnotations); |
| this.types = types; |
| this.injectionAnnotations = injectionAnnotations; |
| } |
| |
| |
| @Override |
| protected ElementValidator elementValidator(ExecutableElement element) { |
| return new Validator(element); |
| } |
| |
| private class Validator extends MethodValidator { |
| Validator(ExecutableElement element) { |
| super(element); |
| } |
| |
| @Override |
| protected void checkKeyType(TypeMirror keyType) { |
| super.checkKeyType(keyType); |
| if (isValidImplicitProvisionKey( |
| injectionAnnotations.getQualifiers(element).stream().findFirst(), keyType, types) |
| && !injectedConstructors(asTypeElement(keyType)).isEmpty()) { |
| report.addError( |
| "@BindsOptionalOf methods cannot return unqualified types that have an @Inject-" |
| + "annotated constructor because those are always present"); |
| } |
| } |
| |
| @Override |
| protected void checkParameters() { |
| if (!element.getParameters().isEmpty()) { |
| report.addError("@BindsOptionalOf methods cannot have parameters"); |
| } |
| } |
| } |
| } |