org.jetbrains.kotlin.fir.analysis.checkers.expression.FirCallableReferenceChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.fir.analysis.checkers.expression
import org.jetbrains.kotlin.KtFakeSourceElementKind
import org.jetbrains.kotlin.descriptors.ClassKind
import org.jetbrains.kotlin.fir.analysis.checkers.classKind
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.checkers.declaration.isExtensionMember
import org.jetbrains.kotlin.fir.analysis.checkers.declaration.isLocalMember
import org.jetbrains.kotlin.fir.analysis.checkers.getContainingClassSymbol
import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.fir.expressions.FirCallableReferenceAccess
import org.jetbrains.kotlin.fir.expressions.FirQualifiedAccessExpression
import org.jetbrains.kotlin.fir.resolved
import org.jetbrains.kotlin.fir.symbols.impl.FirCallableSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirConstructorSymbol
object FirCallableReferenceChecker : FirQualifiedAccessExpressionChecker() {
override fun check(expression: FirQualifiedAccessExpression, context: CheckerContext, reporter: DiagnosticReporter) {
if (expression !is FirCallableReferenceAccess) return
checkReferenceIsToAllowedMember(expression, context, reporter)
}
// See FE 1.0 [DoubleColonExpressionResolver#checkReferenceIsToAllowedMember]
private fun checkReferenceIsToAllowedMember(
callableReferenceAccess: FirCallableReferenceAccess,
context: CheckerContext,
reporter: DiagnosticReporter
) {
// UNRESOLVED_REFERENCE will be reported separately.
val reference = callableReferenceAccess.calleeReference.resolved ?: return
val source = reference.source ?: return
if (source.kind is KtFakeSourceElementKind) return
val referredSymbol = reference.resolvedSymbol
if (referredSymbol is FirConstructorSymbol && referredSymbol.getContainingClassSymbol(context.session)?.classKind == ClassKind.ANNOTATION_CLASS) {
reporter.reportOn(source, FirErrors.CALLABLE_REFERENCE_TO_ANNOTATION_CONSTRUCTOR, context)
}
if ((referredSymbol as? FirCallableSymbol<*>)?.isExtensionMember == true &&
!referredSymbol.isLocalMember
) {
reporter.reportOn(source, FirErrors.EXTENSION_IN_CLASS_REFERENCE_NOT_ALLOWED, referredSymbol, context)
}
}
}