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/*
* Copyright (C) 2021 Square, Inc.
*
* 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
*
* https://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 com.squareup.kotlinpoet.metadata.specs
import com.squareup.kotlinpoet.AnnotationSpec
import com.squareup.kotlinpoet.AnnotationSpec.UseSiteTarget.GET
import com.squareup.kotlinpoet.AnnotationSpec.UseSiteTarget.SET
import com.squareup.kotlinpoet.metadata.KotlinPoetMetadataPreview
import com.squareup.kotlinpoet.metadata.classinspectors.ClassInspectorUtil
/**
* Represents relevant information on a property used for [ClassInspector]. Should only be
* associated with properties of a [ClassData].
*
* @param annotations declared annotations on this property.
* @property fieldData associated [FieldData] with this property, if any.
* @property getterData associated getter (as [MethodData]) with this property, if any.
* @property setterData associated setter (as [MethodData]) with this property, if any.
* @property isJvmField indicates if this property should be treated as a jvm field.
*/
@KotlinPoetMetadataPreview
public data class PropertyData(
private val annotations: List<AnnotationSpec>,
val fieldData: FieldData?,
val getterData: MethodData?,
val setterData: MethodData?,
val isJvmField: Boolean
) {
/** Indicates if this property overrides another from a supertype. */
val isOverride: Boolean = (getterData?.isOverride ?: false) || (setterData?.isOverride ?: false)
/**
* A collection of all annotations on this property including declared ones and any derived from
* [fieldData], [getterData], [setterData], and [isJvmField].
*/
val allAnnotations: Collection<AnnotationSpec> = ClassInspectorUtil.createAnnotations {
// Don't add annotations that are already defined on the parent
val higherScopedAnnotations = annotations.associateBy { it.typeName }
val fieldAnnotations = fieldData?.allAnnotations.orEmpty()
.filterNot { it.typeName in higherScopedAnnotations }
.associateByTo(LinkedHashMap()) { it.typeName }
val getterAnnotations = getterData?.allAnnotations(GET).orEmpty()
.filterNot { it.typeName in higherScopedAnnotations }
.associateByTo(LinkedHashMap()) { it.typeName }
val finalTopAnnotations = annotations.toMutableList()
// If this is a val, and annotation is on both getter and field, we can move it to just the
// regular annotations
if (setterData == null && !isJvmField) {
val sharedAnnotations = getterAnnotations.keys.intersect(fieldAnnotations.keys)
for (sharedAnnotation in sharedAnnotations) {
// Add it to the top-level annotations without a site-target
finalTopAnnotations += getterAnnotations.getValue(sharedAnnotation).toBuilder()
.useSiteTarget(null)
.build()
// Remove from field and getter
fieldAnnotations.remove(sharedAnnotation)
getterAnnotations.remove(sharedAnnotation)
}
}
addAll(finalTopAnnotations)
addAll(fieldAnnotations.values)
addAll(getterAnnotations.values)
addAll(
setterData?.allAnnotations(SET).orEmpty()
.filterNot { it.typeName in higherScopedAnnotations }
)
if (isJvmField) {
add(ClassInspectorUtil.JVM_FIELD_SPEC)
}
}
}
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