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/*
* Copyright 2020 Google LLC
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
*
* 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 com.google.devtools.ksp.processor
import com.google.devtools.ksp.closestClassDeclaration
import com.google.devtools.ksp.getClassDeclarationByName
import com.google.devtools.ksp.processing.Resolver
import com.google.devtools.ksp.symbol.*
@Suppress("unused") // used by tests
class OverrideeProcessor : AbstractTestProcessor() {
private val results = mutableListOf<String>()
override fun toResult() = results
override fun process(resolver: Resolver): List<KSAnnotated> {
logSubject(resolver, "NoOverride")
logSubject(resolver, "Subject")
logSubject(resolver, "JavaSubject.Subject")
logSubject(resolver, "lib.Subject")
logSubject(resolver, "ConflictingSubject1")
logSubject(resolver, "ConflictingSubject2")
logSubject(resolver, "ConflictingSubject3")
logSubject(resolver, "ConflictingSubject4")
logSubject(resolver, "OverrideOrder1")
logSubject(resolver, "OverrideOrder2")
logSubject(resolver, "JavaAccessorImpl")
logSubject(resolver, "JavaAnno")
logSubject(resolver, "JavaAnnos")
logSubject(resolver, "PrimaryConstructorOverride")
return emptyList()
}
private fun logSubject(resolver: Resolver, qName: String) {
val subject = resolver.getClassDeclarationByName(qName) ?: return
results.add("$qName:")
subject.declarations.filterIsInstance<KSClassDeclaration>().forEach {
logClass(it)
}
logClass(subject)
}
private fun logClass(subject: KSClassDeclaration) {
subject.declarations.filterIsInstance<KSPropertyDeclaration>()
.forEach {
checkOverridee(it)
}
subject.declarations.filterIsInstance<KSFunctionDeclaration>()
.filterNot { it.simpleName.asString() in IGNORED_METHOD_NAMES }
.forEach {
checkOverridee(it)
}
}
private fun checkOverridee(declaration: KSDeclaration) {
val signature = if (declaration is KSPropertyDeclaration) declaration.toSignature() else
(declaration as KSFunctionDeclaration).toSignature()
val overrideeSignature = if (declaration is KSPropertyDeclaration) declaration.findOverridee()?.toSignature()
else (declaration as KSFunctionDeclaration).findOverridee()?.toSignature()
results.add("$signature -> $overrideeSignature")
}
private fun KSDeclaration.toSignature(): String {
return when (this) {
is KSFunctionDeclaration -> this.toSignature()
is KSPropertyDeclaration -> this.toSignature()
else -> throw IllegalStateException()
}
}
private fun KSFunctionDeclaration.toSignature(): String {
val self = this
return buildString {
append(self.closestClassDeclaration()?.simpleName?.asString())
append(".")
append(self.simpleName.asString())
append(
self.parameters.joinToString(", ", prefix = "(", postfix = ")") {
"${it.name?.asString()}:${it.type.resolve().declaration.simpleName.asString()}"
}
)
}
}
private fun KSPropertyDeclaration.toSignature(): String {
val self = this
return buildString {
append(self.closestClassDeclaration()?.simpleName?.asString())
append(".")
append(self.simpleName.asString())
}
}
companion object {
// ignore these methods as we receive syntetics of it from compiled code
private val IGNORED_METHOD_NAMES = listOf("equals", "hashCode", "toString", "<init>")
}
}
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