org.jetbrains.kotlin.resolve.DataClassAnnotationChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.resolve
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.diagnostics.*
import org.jetbrains.kotlin.builtins.*
public class DataClassAnnotationChecker : DeclarationChecker {
override fun check(
declaration: JetDeclaration,
descriptor: DeclarationDescriptor,
diagnosticHolder: DiagnosticSink,
bindingContext: BindingContext
) {
if (descriptor !is ClassDescriptor) return
if (declaration !is JetClassOrObject) return
if (KotlinBuiltIns.isData(descriptor)) {
if (descriptor.unsubstitutedPrimaryConstructor == null && descriptor.constructors.isNotEmpty()) {
declaration.nameIdentifier?.let { diagnosticHolder.report(Errors.PRIMARY_CONSTRUCTOR_REQUIRED_FOR_DATA_CLASS.on(it)) }
}
val primaryConstructor = declaration.getPrimaryConstructor()
val parameters = primaryConstructor?.valueParameters ?: emptyList()
if (parameters.isEmpty()) {
declaration.nameIdentifier?.let { diagnosticHolder.report(Errors.DATA_CLASS_WITHOUT_PARAMETERS.on(it)) }
}
for (parameter in parameters) {
if (parameter.isVarArg) {
diagnosticHolder.report(Errors.DATA_CLASS_VARARG_PARAMETER.on(parameter))
}
if (!parameter.hasValOrVar()) {
diagnosticHolder.report(Errors.DATA_CLASS_NOT_PROPERTY_PARAMETER.on(parameter))
}
}
}
}
}