org.jetbrains.kotlin.js.resolve.diagnostics.JsMultipleInheritanceChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 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.js.resolve.diagnostics
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
import org.jetbrains.kotlin.name.FqNameUnsafe
import org.jetbrains.kotlin.psi.KtDeclaration
import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext
import org.jetbrains.kotlin.resolve.checkers.DeclarationChecker
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
object JsMultipleInheritanceChecker : DeclarationChecker {
private val fqNames = listOf(
FqNameUnsafe("kotlin.CharSequence.get"),
FqNameUnsafe("kotlin.collections.CharIterator.nextChar")
)
private val simpleNames = fqNames.mapTo(mutableSetOf()) { it.shortName() }
override fun check(declaration: KtDeclaration, descriptor: DeclarationDescriptor, context: DeclarationCheckerContext) {
if (descriptor !is ClassDescriptor) return
for (callable in descriptor.unsubstitutedMemberScope.getContributedDescriptors { it in simpleNames }
.filterIsInstance()) {
if (callable.overriddenDescriptors.size > 1 && callable.overriddenDescriptors.any { it.fqNameUnsafe in fqNames }) {
context.trace.report(ErrorsJs.WRONG_MULTIPLE_INHERITANCE.on(declaration, callable))
}
}
}
}