org.jetbrains.kotlin.backend.common.CommonBackendErrors.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2023 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.backend.common

import com.intellij.psi.PsiElement
import org.jetbrains.kotlin.backend.common.BackendDiagnosticRenderers.EVALUATION_ERROR_EXPLANATION
import org.jetbrains.kotlin.diagnostics.*
import org.jetbrains.kotlin.diagnostics.rendering.BaseDiagnosticRendererFactory
import org.jetbrains.kotlin.diagnostics.rendering.Renderer
import org.jetbrains.kotlin.diagnostics.rendering.RootDiagnosticRendererFactory

object CommonBackendErrors {
    val EVALUATION_ERROR by error1()

    init {
        RootDiagnosticRendererFactory.registerFactory(KtDefaultCommonBackendErrorMessages)
    }
}

object KtDefaultCommonBackendErrorMessages : BaseDiagnosticRendererFactory() {
    override val MAP = KtDiagnosticFactoryToRendererMap("KT").also { map ->
        map.put(
            CommonBackendErrors.EVALUATION_ERROR,
            "Cannot evaluate constant expression: {0}",
            EVALUATION_ERROR_EXPLANATION,
        )
    }
}

object BackendDiagnosticRenderers {
    val EVALUATION_ERROR_EXPLANATION = Renderer {
        val result = Regex("Exception (\\S+)(: (.*))?").matchEntire(it)?.groupValues
        val exceptionName = result?.getOrNull(1)
        val message = result?.getOrNull(3)
        when {
            !message.isNullOrBlank() -> message
            exceptionName == StackOverflowError::class.java.name -> "stack overflow (potentially due to infinite recursion)"
            exceptionName == NullPointerException::class.java.name -> "null reference access"
            exceptionName != null -> exceptionName.split('.').last()
            else -> it
        }
    }
}