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/*
* Copyright (C) 2021 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.aliasof;
import static com.google.auto.common.MoreElements.asType;
import static com.google.auto.common.MoreElements.isType;
import com.google.auto.value.AutoValue;
import com.google.common.collect.ImmutableSet;
import dagger.hilt.processor.internal.ClassNames;
import dagger.hilt.processor.internal.ProcessorErrors;
import dagger.hilt.processor.internal.Processors;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.Element;
import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.Elements;
/**
* A class that represents the values stored in an {@link
* dagger.hilt.internal.aliasof.AliasOfPropagatedData} annotation.
*/
@AutoValue
abstract class AliasOfPropagatedDataMetadata {
abstract TypeElement defineComponentScopeElement();
abstract TypeElement aliasElement();
static ImmutableSet<AliasOfPropagatedDataMetadata> from(Elements elements) {
PackageElement packageElement =
elements.getPackageElement(ClassNames.ALIAS_OF_PROPAGATED_DATA_PACKAGE);
if (packageElement == null) {
return ImmutableSet.of();
}
ImmutableSet<Element> aggregatedElements =
ImmutableSet.copyOf(packageElement.getEnclosedElements());
ProcessorErrors.checkState(
!aggregatedElements.isEmpty(),
packageElement,
"No dependencies found. Did you remove code in package %s?",
ClassNames.ALIAS_OF_PROPAGATED_DATA_PACKAGE);
ImmutableSet.Builder<AliasOfPropagatedDataMetadata> builder = ImmutableSet.builder();
for (Element element : aggregatedElements) {
ProcessorErrors.checkState(
isType(element),
element,
"Only types may be in package %s. Did you add custom code in the package?",
ClassNames.ALIAS_OF_PROPAGATED_DATA_PACKAGE);
builder.add(create(asType(element), elements));
}
return builder.build();
}
private static AliasOfPropagatedDataMetadata create(TypeElement element, Elements elements) {
AnnotationMirror annotationMirror =
Processors.getAnnotationMirror(element, ClassNames.ALIAS_OF_PROPAGATED_DATA);
ProcessorErrors.checkState(
annotationMirror != null,
element,
"Classes in package %s must be annotated with @%s: %s."
+ " Found: %s. Files in this package are generated, did you add custom code in the"
+ " package? ",
ClassNames.ALIAS_OF_PROPAGATED_DATA_PACKAGE,
ClassNames.ALIAS_OF_PROPAGATED_DATA,
element.getSimpleName(),
element.getAnnotationMirrors());
TypeElement defineComponentScopeElement =
Processors.getAnnotationClassValue(elements, annotationMirror, "defineComponentScope");
TypeElement aliasElement =
Processors.getAnnotationClassValue(elements, annotationMirror, "alias");
return new AutoValue_AliasOfPropagatedDataMetadata(defineComponentScopeElement, aliasElement);
}
}
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