org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirMethodOfAnyImplementedInInterfaceChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2020 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.declaration
import org.jetbrains.kotlin.builtins.StandardNames.HASHCODE_NAME
import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.fir.analysis.checkers.FirDeclarationPresenter
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.fir.analysis.diagnostics.withSuppressedDiagnostics
import org.jetbrains.kotlin.fir.declarations.FirRegularClass
import org.jetbrains.kotlin.fir.declarations.FirSimpleFunction
import org.jetbrains.kotlin.fir.declarations.utils.hasBody
import org.jetbrains.kotlin.fir.declarations.utils.isInterface
import org.jetbrains.kotlin.fir.declarations.utils.isOverride
import org.jetbrains.kotlin.fir.resolve.isEquals
import org.jetbrains.kotlin.name.CallableId
import org.jetbrains.kotlin.util.OperatorNameConventions.TO_STRING
object FirMethodOfAnyImplementedInInterfaceChecker : FirRegularClassChecker(), FirDeclarationPresenter {
// We need representations that look like JVM signatures. Thus, just function names, not fully qualified ones.
override fun StringBuilder.appendRepresentation(it: CallableId) {
append(it.callableName)
}
// We need representations that look like JVM signatures. Hence, no need to represent operator.
override fun StringBuilder.appendOperatorTag(it: FirSimpleFunction) {
// Intentionally empty
}
override fun check(declaration: FirRegularClass, context: CheckerContext, reporter: DiagnosticReporter) {
if (!declaration.isInterface) {
return
}
for (function in declaration.declarations) {
if (function !is FirSimpleFunction || !function.isOverride || !function.hasBody) continue
var methodOfAny = false
if (function.valueParameters.isEmpty() &&
(function.name == HASHCODE_NAME || function.name == TO_STRING)
) {
methodOfAny = true
} else if (function.isEquals()) {
methodOfAny = true
}
if (methodOfAny) {
withSuppressedDiagnostics(function, context) {
reporter.reportOn(function.source, FirErrors.METHOD_OF_ANY_IMPLEMENTED_IN_INTERFACE, it)
}
}
}
}
}