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/*
* Copyright (C) 2019 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.hilt.processor.internal.aggregateddeps;
import com.google.common.collect.ImmutableSet;
import com.squareup.javapoet.AnnotationSpec;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.JavaFile;
import com.squareup.javapoet.TypeSpec;
import dagger.hilt.processor.internal.Processors;
import java.io.IOException;
import java.util.Optional;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.TypeElement;
/**
* Generates the @AggregatedDeps annotated class used to pass information
* about modules and entry points through multiple javac runs.
*/
final class AggregatedDepsGenerator {
static final String AGGREGATING_PACKAGE = "hilt_aggregated_deps";
private static final ClassName AGGREGATED_DEPS =
ClassName.get("dagger.hilt.processor.internal.aggregateddeps", "AggregatedDeps");
private final String dependencyType;
private final TypeElement dependency;
private final Optional<ClassName> testName;
private final ImmutableSet<ClassName> components;
private final ImmutableSet<ClassName> replacedDependencies;
private final ProcessingEnvironment processingEnv;
AggregatedDepsGenerator(
String dependencyType,
TypeElement dependency,
Optional<ClassName> testName,
ImmutableSet<ClassName> components,
ImmutableSet<ClassName> replacedDependencies,
ProcessingEnvironment processingEnv) {
this.dependencyType = dependencyType;
this.dependency = dependency;
this.testName = testName;
this.components = components;
this.replacedDependencies = replacedDependencies;
this.processingEnv = processingEnv;
}
void generate() throws IOException {
ClassName name =
ClassName.get(
AGGREGATING_PACKAGE, Processors.getFullEnclosedName(dependency) + "ModuleDeps");
TypeSpec.Builder generator =
TypeSpec.classBuilder(name.simpleName())
.addOriginatingElement(dependency)
.addAnnotation(aggregatedDepsAnnotation())
.addJavadoc("Generated class to pass information through multiple javac runs.\n");
Processors.addGeneratedAnnotation(generator, processingEnv, getClass());
JavaFile.builder(name.packageName(), generator.build())
.build()
.writeTo(processingEnv.getFiler());
}
private AnnotationSpec aggregatedDepsAnnotation() {
AnnotationSpec.Builder annotationBuilder = AnnotationSpec.builder(AGGREGATED_DEPS);
components.forEach(component -> annotationBuilder.addMember("components", "$S", component));
replacedDependencies.forEach(dep -> annotationBuilder.addMember("replaces", "$S", dep));
testName.ifPresent(test -> annotationBuilder.addMember("test", "$S", test));
annotationBuilder.addMember(dependencyType, "$S", dependency.getQualifiedName());
return annotationBuilder.build();
}
}
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