76 lines
3.0 KiB
Java
76 lines
3.0 KiB
Java
/*
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* Copyright (C) 2014 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;
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import static androidx.room.compiler.processing.XElementKt.isConstructor;
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import static androidx.room.compiler.processing.XElementKt.isField;
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import static androidx.room.compiler.processing.XElementKt.isMethod;
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import static dagger.internal.codegen.xprocessing.XElements.asConstructor;
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import static dagger.internal.codegen.xprocessing.XElements.asField;
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import static dagger.internal.codegen.xprocessing.XElements.asMethod;
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import androidx.room.compiler.processing.XElement;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.collect.Sets;
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import com.squareup.javapoet.ClassName;
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import dagger.internal.codegen.binding.InjectBindingRegistry;
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import dagger.internal.codegen.javapoet.TypeNames;
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import dagger.internal.codegen.validation.TypeCheckingProcessingStep;
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import java.util.Set;
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import javax.inject.Inject;
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/**
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* An annotation processor for generating Dagger implementation code based on the {@link Inject}
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* annotation.
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*/
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// TODO(gak): add some error handling for bad source files
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// TODO(bcorso): Add support in TypeCheckingProcessingStep to perform custom validation and use
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// SuperficialInjectValidator rather than SuperficialValidator.
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final class InjectProcessingStep extends TypeCheckingProcessingStep<XElement> {
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private final InjectBindingRegistry injectBindingRegistry;
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private final Set<XElement> processedElements = Sets.newHashSet();
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@Inject
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InjectProcessingStep(InjectBindingRegistry injectBindingRegistry) {
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this.injectBindingRegistry = injectBindingRegistry;
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}
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@Override
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public ImmutableSet<ClassName> annotationClassNames() {
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return ImmutableSet.of(TypeNames.INJECT, TypeNames.INJECT_JAVAX, TypeNames.ASSISTED_INJECT);
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}
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@Override
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protected void process(XElement injectElement, ImmutableSet<ClassName> annotations) {
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// Only process an element once to avoid getting duplicate errors when an element is annotated
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// with multiple inject annotations.
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if (processedElements.contains(injectElement)) {
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return;
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}
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if (isConstructor(injectElement)) {
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injectBindingRegistry.tryRegisterInjectConstructor(asConstructor(injectElement));
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} else if (isField(injectElement)) {
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injectBindingRegistry.tryRegisterInjectField(asField(injectElement));
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} else if (isMethod(injectElement)) {
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injectBindingRegistry.tryRegisterInjectMethod(asMethod(injectElement));
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}
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processedElements.add(injectElement);
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}
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}
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