org.jetbrains.kotlin.resolve.jvm.checkers.JvmSerializableLambdaAnnotationChecker.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2022 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.resolve.jvm.checkers

import org.jetbrains.kotlin.config.LanguageVersionSettings
import org.jetbrains.kotlin.descriptors.annotations.KotlinTarget
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.psi.KtAnnotated
import org.jetbrains.kotlin.psi.KtAnnotationEntry
import org.jetbrains.kotlin.resolve.AdditionalAnnotationChecker
import org.jetbrains.kotlin.resolve.BindingContext.ANNOTATION
import org.jetbrains.kotlin.resolve.BindingTrace
import org.jetbrains.kotlin.resolve.jvm.annotations.JVM_SERIALIZABLE_LAMBDA_ANNOTATION_FQ_NAME

object JvmSerializableLambdaAnnotationChecker : AdditionalAnnotationChecker {
    override fun checkEntries(
        entries: List,
        actualTargets: List,
        trace: BindingTrace,
        annotated: KtAnnotated?,
        languageVersionSettings: LanguageVersionSettings
    ) {
        entries.find { trace.get(ANNOTATION, it)?.fqName == JVM_SERIALIZABLE_LAMBDA_ANNOTATION_FQ_NAME }?.let {
            if (!actualTargets.contains(KotlinTarget.LAMBDA_EXPRESSION) && !actualTargets.contains(KotlinTarget.ANONYMOUS_FUNCTION)) {
                trace.report(
                    Errors.WRONG_ANNOTATION_TARGET.on(it, actualTargets.firstOrNull()?.description ?: "unidentified target")
                )
            }
        }
    }
}