org.jetbrains.kotlin.resolve.validation.InfixValidator.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.validation
import com.intellij.psi.PsiElement
import org.jetbrains.kotlin.descriptors.CallableDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.psi.KtBinaryExpression
import org.jetbrains.kotlin.psi.KtOperationReferenceExpression
import org.jetbrains.kotlin.resolve.BindingTrace
import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
import org.jetbrains.kotlin.resolve.calls.tasks.isDynamic
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
import org.jetbrains.kotlin.types.ErrorUtils
public class InfixValidator : SymbolUsageValidator {
override fun validateCall(
resolvedCall: ResolvedCall<*>?,
targetDescriptor: CallableDescriptor,
trace: BindingTrace,
element: PsiElement
) {
val functionDescriptor = targetDescriptor as? FunctionDescriptor ?: return
if (functionDescriptor.isDynamic() || ErrorUtils.isError(functionDescriptor)) return
if (isInfixCall(element) && !functionDescriptor.isInfix) {
val operationRefExpression = element as? KtOperationReferenceExpression ?: return
val containingDeclarationName = functionDescriptor.containingDeclaration.fqNameUnsafe.asString()
trace.report(Errors.INFIX_MODIFIER_REQUIRED.on(operationRefExpression, functionDescriptor, containingDeclarationName))
}
}
companion object {
fun isInfixCall(element: PsiElement?): Boolean {
val operationRefExpression = element as? KtOperationReferenceExpression ?: return false
val binaryExpression = operationRefExpression.parent as? KtBinaryExpression ?: return false
return binaryExpression.operationReference === operationRefExpression && !operationRefExpression.isPredefinedOperator()
}
}
}