org.jetbrains.kotlin.resolve.ConstructorHeaderCallChecker.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.
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package org.jetbrains.kotlin.resolve
import org.jetbrains.kotlin.descriptors.CallableDescriptor
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.ConstructorDescriptor
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.psi.KtInstanceExpressionWithLabel
import org.jetbrains.kotlin.resolve.calls.checkers.CallChecker
import org.jetbrains.kotlin.resolve.calls.context.BasicCallResolutionContext
import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
import org.jetbrains.kotlin.resolve.scopes.LexicalScope
import org.jetbrains.kotlin.resolve.scopes.LexicalScopeKind
import org.jetbrains.kotlin.resolve.scopes.receivers.ImplicitReceiver
import org.jetbrains.kotlin.resolve.scopes.receivers.Receiver
import org.jetbrains.kotlin.resolve.scopes.utils.parentsWithSelf
object ConstructorHeaderCallChecker : CallChecker {
override fun check(resolvedCall: ResolvedCall, context: BasicCallResolutionContext) {
val dispatchReceiverClass = resolvedCall.dispatchReceiver.classDescriptorForImplicitReceiver
val extensionReceiverClass = resolvedCall.extensionReceiver.classDescriptorForImplicitReceiver
val labelReferenceClass =
(resolvedCall.call.callElement as? KtInstanceExpressionWithLabel)?.let {
instanceExpressionWithLabel ->
context.trace.get(BindingContext.REFERENCE_TARGET, instanceExpressionWithLabel.instanceReference) as? ClassDescriptor
}
if (dispatchReceiverClass == null && extensionReceiverClass == null && labelReferenceClass == null) return
if (context.scope.parentsWithSelf.any() {
it is LexicalScope && it.kind == LexicalScopeKind.CONSTRUCTOR_HEADER
&& (it.ownerDescriptor as ConstructorDescriptor).containingDeclaration in
setOf(dispatchReceiverClass, extensionReceiverClass, labelReferenceClass)
}) {
context.trace.report(
Errors.INSTANCE_ACCESS_BEFORE_SUPER_CALL.on(context.call.calleeExpression ?: return, resolvedCall.resultingDescriptor))
}
}
}
private val Receiver?.classDescriptorForImplicitReceiver: ClassDescriptor?
get() = (this as? ImplicitReceiver)?.declarationDescriptor as? ClassDescriptor