[IR] More user-friendly compilation exceptions from lowerings and JS codegen

Merge-request: KT-MR-5004

compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt

@@ -8,13 +8,13 @@ package org.jetbrains.kotlin.cli.js
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.util.text.StringUtil
+import org.jetbrains.kotlin.backend.common.CompilationException
 import org.jetbrains.kotlin.backend.common.phaser.PhaseConfig
 import org.jetbrains.kotlin.backend.common.serialization.metadata.KlibMetadataVersion
 import org.jetbrains.kotlin.backend.wasm.compileWasm
 import org.jetbrains.kotlin.backend.wasm.wasmPhases
 import org.jetbrains.kotlin.cli.common.*
-import org.jetbrains.kotlin.cli.common.ExitCode.COMPILATION_ERROR
+import org.jetbrains.kotlin.cli.common.ExitCode.*
-import org.jetbrains.kotlin.cli.common.ExitCode.OK
 import org.jetbrains.kotlin.cli.common.arguments.K2JSCompilerArguments
 import org.jetbrains.kotlin.cli.common.arguments.K2JsArgumentConstants
 import org.jetbrains.kotlin.cli.common.arguments.K2JsArgumentConstants.RUNTIME_DIAGNOSTIC_EXCEPTION
@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.cli.common.arguments.K2JsArgumentConstants.RUNTIME_D
 import org.jetbrains.kotlin.cli.common.config.addKotlinSourceRoot
 import org.jetbrains.kotlin.cli.common.extensions.ScriptEvaluationExtension
 import org.jetbrains.kotlin.cli.common.messages.AnalyzerWithCompilerReport
+import org.jetbrains.kotlin.cli.common.messages.CompilerMessageLocation
 import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity.*
 import org.jetbrains.kotlin.cli.common.messages.MessageCollector
 import org.jetbrains.kotlin.cli.common.messages.MessageUtil
@@ -35,15 +36,11 @@ import org.jetbrains.kotlin.incremental.js.IncrementalDataProvider
 import org.jetbrains.kotlin.incremental.js.IncrementalNextRoundChecker
 import org.jetbrains.kotlin.incremental.js.IncrementalResultsConsumer
 import org.jetbrains.kotlin.ir.backend.js.*
-import org.jetbrains.kotlin.ir.backend.js.ic.actualizeCacheForModule
-import org.jetbrains.kotlin.ir.backend.js.ic.buildCache
-import org.jetbrains.kotlin.ir.backend.js.ic.checkCaches
-import org.jetbrains.kotlin.ir.backend.js.utils.sanitizeName
-import org.jetbrains.kotlin.ir.backend.js.ic.*
-import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImpl
 import org.jetbrains.kotlin.ir.backend.js.codegen.JsGenerationGranularity
+import org.jetbrains.kotlin.ir.backend.js.ic.*
 import org.jetbrains.kotlin.ir.backend.js.transformers.irToJs.IrModuleToJsTransformer
 import org.jetbrains.kotlin.ir.backend.js.transformers.irToJs.IrModuleToJsTransformerTmp
+import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImpl
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrFactory
 import org.jetbrains.kotlin.js.analyzer.JsAnalysisResult
 import org.jetbrains.kotlin.js.config.*
@@ -59,7 +56,6 @@ import org.jetbrains.kotlin.utils.fileUtils.withReplacedExtensionOrNull
 import org.jetbrains.kotlin.utils.join
 import java.io.File
 import java.io.IOException
-import java.lang.IllegalArgumentException
 
 enum class ProduceKind {
     DEFAULT,  // Determine what to produce based on js-v1 options
@@ -236,7 +232,10 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
             if (updated) {
                 messageCollector.report(INFO, "IC $invalidationType cache building duration: ${System.currentTimeMillis() - start}ms")
             } else {
-                messageCollector.report(INFO, "IC $invalidationType cache up-to-date check duration: ${System.currentTimeMillis() - start}ms")
+                messageCollector.report(
+                    INFO,
+                    "IC $invalidationType cache up-to-date check duration: ${System.currentTimeMillis() - start}ms"
+                )
             }
             return OK
         }
@@ -384,7 +383,7 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                 arguments.irPerFile -> JsGenerationGranularity.PER_FILE
                 else -> JsGenerationGranularity.WHOLE_PROGRAM
             }
-
+            try {
                 val ir = compile(
                     module,
                     phaseConfig,
@@ -424,7 +423,7 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                         fullJs = true,
                         dceJs = arguments.irDce,
                         multiModule = arguments.irPerModule,
-                    relativeRequirePath = false
+                        relativeRequirePath = false,
                     )
 
                     transformer.generateModule(ir.allModules)
@@ -433,7 +432,6 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                 messageCollector.report(INFO, "Executable production duration: ${System.currentTimeMillis() - start}ms")
 
 
-
                 val outputs = if (arguments.irDce && !arguments.irDceDriven)
                     compiledModule.outputsAfterDce!!
                 else
@@ -447,6 +445,19 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                     val dtsFile = outputFile.withReplacedExtensionOrNull(outputFile.extension, "d.ts")!!
                     dtsFile.writeText(compiledModule.tsDefinitions ?: error("No ts definitions"))
                 }
+            } catch (e: CompilationException) {
+                messageCollector.report(
+                    ERROR,
+                    e.stackTraceToString(),
+                    CompilerMessageLocation.create(
+                        path = e.path,
+                        line = e.line,
+                        column = e.column,
+                        lineContent = e.content
+                    )
+                )
+                return INTERNAL_ERROR
+            }
         }
 
         return OK

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CompilationException.kt

@@ -0,0 +1,98 @@
+/*
+ * 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.backend.common
+
+import org.jetbrains.kotlin.ir.IrElement
+import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
+import org.jetbrains.kotlin.ir.declarations.IrDeclaration
+import org.jetbrains.kotlin.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.declarations.path
+import org.jetbrains.kotlin.ir.types.IrType
+import org.jetbrains.kotlin.ir.util.dumpKotlinLike
+import org.jetbrains.kotlin.ir.util.fileOrNull
+
+class CompilationException(
+    message: String,
+    // file is not known in any moment, need to set it later in catch to save stacktrace
+    var file: IrFile?,
+    val ir: Any?, /* IrElement | IrType */
+    cause: Throwable? = null
+) : RuntimeException(message, cause) {
+    override val message: String
+        get() = buildString {
+            appendLine("Back-end: Please report this problem https://kotl.in/issue")
+            path?.let { appendLine("$it:$line:$column") }
+            content?.let { appendLine("Problem with `$it`") }
+            append("Details: " + super.message)
+        }
+
+    val line: Int
+        get() {
+            val irStartOffset = irStartOffset
+                ?: return UNDEFINED_OFFSET
+
+            val lineNumber = file?.fileEntry?.getLineNumber(irStartOffset)
+                ?: return UNDEFINED_OFFSET
+
+            return lineNumber + 1
+        }
+
+    val column: Int
+        get() {
+            val irStartOffset = irStartOffset
+                ?: return UNDEFINED_OFFSET
+
+            val columnNumber = file?.fileEntry?.getColumnNumber(irStartOffset)
+                ?: return UNDEFINED_OFFSET
+
+            return columnNumber + 1
+        }
+
+    private val irStartOffset: Int?
+        get() = (ir as? IrElement)?.startOffset
+
+    val path: String?
+        get() = file?.path
+
+    val content: String?
+        get() = when (ir) {
+            is IrElement -> ir.dumpKotlinLike()
+            is IrType -> ir.dumpKotlinLike()
+            else -> null
+        }
+}
+
+fun compilationException(message: String, element: IrElement): Nothing {
+    throw CompilationException(message, null, element)
+}
+
+fun compilationException(message: String, type: IrType?): Nothing {
+    throw CompilationException(message, null, type)
+}
+
+fun compilationException(message: String, declaration: IrDeclaration): Nothing {
+    val file = try {
+        declaration.fileOrNull
+    } catch (e: Throwable) {
+        null
+    }
+    throw CompilationException(message, file, declaration)
+}
+
+fun Throwable.wrapWithCompilationException(
+    message: String,
+    file: IrFile,
+    element: IrElement?
+): CompilationException {
+    return CompilationException(
+        "$message: ${this::class.qualifiedName}: ${this.message}",
+        file,
+        element,
+        cause = this
+    ).apply {
+        stackTrace = this@wrapWithCompilationException.stackTrace
+    }
+}

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/Lower.kt

@@ -67,7 +67,22 @@ interface BodyAndScriptBodyLoweringPass : BodyLoweringPass {
     override fun lower(irFile: IrFile) = runOnFilePostfix(irFile)
 }
 
-fun FileLoweringPass.lower(moduleFragment: IrModuleFragment) = moduleFragment.files.forEach { lower(it) }
+fun FileLoweringPass.lower(
+    moduleFragment: IrModuleFragment
+) = moduleFragment.files.forEach {
+    try {
+        lower(it)
+    } catch (e: CompilationException) {
+        e.file = it
+        throw e
+    } catch (e: Throwable) {
+        throw e.wrapWithCompilationException(
+            "Internal error in file lowering",
+            it,
+            null
+        )
+    }
+}
 
 fun ClassLoweringPass.runOnFilePostfix(irFile: IrFile) {
     irFile.acceptVoid(ClassLoweringVisitor(this))
@@ -128,7 +143,18 @@ fun BodyLoweringPass.runOnFilePostfix(
 ) {
     val visitor = BodyLoweringVisitor(this, withLocalDeclarations, allowDeclarationModification)
     for (declaration in ArrayList(irFile.declarations)) {
+        try {
             declaration.accept(visitor, null)
+        } catch (e: CompilationException) {
+            e.file = irFile
+            throw e
+        } catch (e: Throwable) {
+            throw e.wrapWithCompilationException(
+                "Internal error in body lowering",
+                irFile,
+                declaration
+            )
+        }
     }
 }
 
@@ -214,8 +240,19 @@ interface DeclarationTransformer : FileLoweringPass {
     override fun lower(irFile: IrFile) {
         val visitor = Visitor(this)
         irFile.declarations.transformFlat { declaration ->
+            try {
                 declaration.acceptVoid(visitor)
                 transformFlatRestricted(declaration)
+            } catch (e: CompilationException) {
+                e.file = irFile
+                throw e
+            } catch (e: Throwable) {
+                throw e.wrapWithCompilationException(
+                    "Internal error in declaration transformer",
+                    irFile,
+                    declaration
+                )
+            }
         }
     }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt

@@ -62,6 +62,7 @@ class JsIrBackendContext(
     val granularity: JsGenerationGranularity = JsGenerationGranularity.WHOLE_PROGRAM,
     val icCompatibleIr2Js: Boolean = false,
 ) : JsCommonBackendContext {
+
     val fileToInitializationFuns: MutableMap<IrFile, IrSimpleFunction?> = mutableMapOf()
     val fileToInitializerPureness: MutableMap<IrFile, Boolean> = mutableMapOf()
     val fieldToInitializer: MutableMap<IrField, IrExpression> = mutableMapOf()

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/AutoboxingTransformer.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.lower.AbstractValueUsageTransformer
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.backend.js.JsCommonBackendContext
@@ -33,7 +34,7 @@ abstract class AbstractValueUsageLowering(val context: JsCommonBackendContext) :
 
         val replacement = container.transform(this, null) as IrDeclaration
 
-        if (container !== replacement) error("Declaration has changed: ${container}")
+        if (container !== replacement) compilationException("Declaration has changed", container)
 
         // TODO: Track & insert parents for temporary variables
         irBody.patchDeclarationParents(container as? IrDeclarationParent ?: container.parent)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/BlockDecomposerLowering.kt

@@ -7,21 +7,21 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.isElseBranch
+import org.jetbrains.kotlin.backend.common.ir.isPure
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.backend.js.JsCommonBackendContext
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
 import org.jetbrains.kotlin.ir.backend.js.ir.JsIrBuilder
-import org.jetbrains.kotlin.backend.common.ir.isPure
 import org.jetbrains.kotlin.ir.builders.declarations.buildFun
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.*
 import org.jetbrains.kotlin.ir.expressions.impl.*
 import org.jetbrains.kotlin.ir.transformStatement
 import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.util.dump
 import org.jetbrains.kotlin.ir.util.patchDeclarationParents
 import org.jetbrains.kotlin.ir.util.transformFlat
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformer
@@ -620,11 +620,17 @@ class BlockDecomposerTransformer(
             )
 
             expression.receiver = newArguments[0]
-                ?: error("No new receiver in destructured composite for:\n${expression.dump()}")
+                ?: compilationException(
+                    "No new receiver in destructured composite",
+                    expression
+                )
 
             for (i in expression.arguments.indices) {
                 expression.arguments[i] = newArguments[i + 1]
-                    ?: error("No argument #$i in destructured composite for:\n${expression.dump()}")
+                    ?: compilationException(
+                        "No argument #$i in destructured composite",
+                        expression
+                    )
             }
 
             newStatements.add(expression)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/CallableReferenceLowering.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.ir.createImplicitParameterDeclarationWithWrappedDescriptor
 import org.jetbrains.kotlin.backend.common.ir.moveBodyTo
@@ -120,7 +121,11 @@ class CallableReferenceLowering(private val context: CommonBackendContext) : Bod
 
         private val referenceType = reference.type as IrSimpleType
 
-        private val superFunctionInterface: IrClass = referenceType.classOrNull?.owner ?: error("Expected functional type")
+        private val superFunctionInterface: IrClass = referenceType.classOrNull?.owner
+            ?: compilationException(
+                "Expected functional type",
+                reference
+            )
         private val isKReference = superFunctionInterface.name.identifier[0] == 'K'
 
         // If we implement KFunctionN we also need FunctionN
@@ -324,7 +329,7 @@ class CallableReferenceLowering(private val context: CommonBackendContext) : Bod
                             JsStatementOrigins.CALLABLE_REFERENCE_INVOKE
                         )
                     else ->
-                        error("unknown function kind: ${callee.render()}")
+                        compilationException("unknown function kind", callee)
                 }
             }
 
@@ -411,7 +416,11 @@ class CallableReferenceLowering(private val context: CommonBackendContext) : Bod
                 .filterIsInstance<IrProperty>()
                 .single { it.name == Name.identifier("name") }  // In K/Wasm interfaces can have fake overridden properties from Any
 
-            val supperGetter = superProperty.getter ?: error("Expected getter for KFunction.name property")
+            val supperGetter = superProperty.getter
+                ?: compilationException(
+                    "Expected getter for KFunction.name property",
+                    superProperty
+                )
 
             val nameProperty = clazz.addProperty() {
                 visibility = superProperty.visibility

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/ClassReferenceLowering.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.IrElementTransformerVoidWithContext
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.Symbols
 import org.jetbrains.kotlin.backend.common.ir.createArrayOfExpression
 import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
@@ -158,7 +159,7 @@ class ClassReferenceLowering(val context: JsCommonBackendContext) : BodyLowering
             return createSimpleKType(type, visitedTypeParams)
         if (type is IrDynamicType)
             return createDynamicType()
-        error("Unexpected type $type")
+        compilationException("Unexpected type", type)
     }
 
     private fun createDynamicType(): IrExpression {

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/ConstLowering.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
@@ -55,7 +56,7 @@ class ConstTransformer(private val context: JsIrBackendContext) : IrElementTrans
 
                     uLongClassSymbol -> lowerConst(uLongClassSymbol, { _, _, _, v -> createLong(v) }, IrConstKind.Long.valueOf(expression))
 
-                    else -> error("Unknown unsigned type")
+                    else -> compilationException("Unknown unsigned type", expression)
                 }
             }
             return when {

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/InteropCallableReferenceLowering.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.ir.copyToWithoutSuperTypes
 import org.jetbrains.kotlin.backend.common.lower.LoweredStatementOrigins
@@ -61,7 +62,7 @@ class InteropCallableReferenceLowering(val context: JsIrBackendContext) : BodyLo
     }
 
     override fun lower(irBody: IrBody, container: IrDeclaration) {
-        error("Unreachable")
+        compilationException("Unreachable", irBody)
     }
 
     private inner class CallableReferenceClassTransformer(private val ctorToFactoryMap: MutableMap<IrConstructorSymbol, IrSimpleFunctionSymbol>) : IrElementTransformerVoid() {
@@ -109,7 +110,11 @@ class InteropCallableReferenceLowering(val context: JsIrBackendContext) : BodyLo
         invokeMapping: Map<IrValueParameterSymbol, IrValueParameterSymbol>,
         factoryMapping: Map<IrFieldSymbol, IrValueParameterSymbol>
     ): IrBlockBody {
-        val body = invokeFun.body ?: error("invoke() method has to have a body")
+        val body = invokeFun.body
+            ?: compilationException(
+                "invoke() method has to have a body",
+                invokeFun
+            )
 
         fun IrExpression.getValue(d: IrValueSymbol): IrExpression = IrGetValueImpl(startOffset, endOffset, d)
         fun IrExpression.getCastedValue(d: IrValueSymbol, toType: IrType): IrExpression =
@@ -180,7 +185,11 @@ class InteropCallableReferenceLowering(val context: JsIrBackendContext) : BodyLo
     }
 
     private fun capturedFieldsToParametersMap(constructor: IrConstructor, factoryFunction: IrSimpleFunction): Map<IrFieldSymbol, IrValueParameterSymbol> {
-        val statements = constructor.body?.let { it.cast<IrBlockBody>().statements } ?: error("Expecting Body for function ref constructor")
+        val statements = constructor.body?.let { it.cast<IrBlockBody>().statements }
+            ?: compilationException(
+                "Expecting Body for function ref constructor",
+                constructor
+            )
 
         val fieldSetters = statements.filterIsInstance<IrSetField>()
             .filter { it.origin == LoweredStatementOrigins.STATEMENT_ORIGIN_INITIALIZER_OF_FIELD_FOR_CAPTURED_VALUE }
@@ -193,7 +202,11 @@ class InteropCallableReferenceLowering(val context: JsIrBackendContext) : BodyLo
     }
 
     private fun extractReferenceReflectionName(getter: IrSimpleFunction): IrExpression {
-        val body = getter.body?.cast<IrBlockBody>() ?: error("Expected body for ${getter.render()}")
+        val body = getter.body?.cast<IrBlockBody>()
+            ?: compilationException(
+                "Expected body",
+                getter
+            )
         val statements = body.statements
 
         val returnStmt = statements[0] as IrReturn

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsAnnotationImplementationLowering.kt

@@ -6,23 +6,20 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.DeclarationTransformer
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.lower.AnnotationImplementationTransformer
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
-import org.jetbrains.kotlin.ir.builders.IrBlockBodyBuilder
-import org.jetbrains.kotlin.ir.builders.irCall
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrConstructor
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.expressions.IrConstructorCall
 import org.jetbrains.kotlin.ir.expressions.IrExpression
-import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.types.IrType
 import org.jetbrains.kotlin.ir.types.isArray
 import org.jetbrains.kotlin.ir.util.isAnnotationClass
 import org.jetbrains.kotlin.ir.util.isPrimitiveArray
-import org.jetbrains.kotlin.ir.util.render
 
 
 // JS PIR (and IC) requires DeclarationTransformer instead of FileLoweringPass
@@ -55,13 +52,16 @@ class JsAnnotationImplementationTransformer(val jsContext: JsIrBackendContext) :
         when {
             type.isPrimitiveArray() -> arraysContentEquals[type]
             else -> arraysContentEquals.entries.singleOrNull { (k, _) -> k.isArray() }?.value
-        } ?: error("Can't find an Arrays.contentEquals method for array type ${type.render()}")
+        } ?: compilationException("Can't find an Arrays.contentEquals method for array type", type)
 
     override fun implementAnnotationPropertiesAndConstructor(
         implClass: IrClass,
         annotationClass: IrClass,
         generatedConstructor: IrConstructor
     ) {
-        throw IllegalStateException("Should not be called")
+        compilationException(
+            "Should not be called",
+            implClass
+        )
     }
 }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsCodeOutliningLowering.kt

@@ -5,11 +5,8 @@
 
 package org.jetbrains.kotlin.ir.backend.js.lower
 
-import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.*
-import org.jetbrains.kotlin.backend.common.IrElementTransformerVoidWithContext
 import org.jetbrains.kotlin.backend.common.lower.createIrBuilder
-import org.jetbrains.kotlin.backend.common.pop
-import org.jetbrains.kotlin.backend.common.push
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.IrStatement
@@ -30,14 +27,12 @@ import org.jetbrains.kotlin.ir.expressions.IrContainerExpression
 import org.jetbrains.kotlin.ir.expressions.IrExpression
 import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
 import org.jetbrains.kotlin.ir.util.constructors
-import org.jetbrains.kotlin.ir.util.dumpKotlinLike
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
 import org.jetbrains.kotlin.js.backend.ast.*
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.utils.addIfNotNull
-import java.lang.IllegalStateException
 
 // Outlines `kotlin.js.js(code: String)` calls where JS code references Kotlin locals.
 // Makes locals usages explicit.
@@ -96,7 +91,11 @@ private class JsCodeOutlineTransformer(
         val name = irValueDeclaration.name
         if (!name.isSpecial) {
             val identifier = name.identifier
-            val currentScope = localScopes.lastOrNull() ?: error("Expecting a scope")
+            val currentScope = localScopes.lastOrNull()
+                ?: compilationException(
+                    "Expecting a scope",
+                    irValueDeclaration
+                )
             currentScope[identifier] = irValueDeclaration
         }
     }
@@ -133,7 +132,11 @@ private class JsCodeOutlineTransformer(
         if (expression.symbol != backendContext.intrinsics.jsCode)
             return null
 
-        val jsCodeArg = expression.getValueArgument(0) ?: error("Expected js code string")
+        val jsCodeArg = expression.getValueArgument(0)
+            ?: compilationException(
+                "Expected js code string",
+                expression
+            )
         val jsStatements = translateJsCodeIntoStatementList(jsCodeArg, backendContext) ?: return null
 
         // Collect used Kotlin local variables and parameters.

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsInnerClassesSupport.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.lower
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.getOrPut
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.ir.copyTypeParametersFrom
@@ -18,7 +19,6 @@ import org.jetbrains.kotlin.ir.builders.declarations.buildField
 import org.jetbrains.kotlin.ir.builders.declarations.buildValueParameter
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.util.defaultType
-import org.jetbrains.kotlin.ir.util.dump
 import org.jetbrains.kotlin.name.Name
 
 class JsInnerClassesSupport(mapping: JsMapping, private val irFactory: IrFactory) : InnerClassesSupport {
@@ -27,11 +27,17 @@ class JsInnerClassesSupport(mapping: JsMapping, private val irFactory: IrFactory
     private val originalInnerClassPrimaryConstructorByClass = mapping.originalInnerClassPrimaryConstructorByClass
 
     override fun getOuterThisField(innerClass: IrClass): IrField =
-        if (!innerClass.isInner) throw AssertionError("Class is not inner: ${innerClass.dump()}")
+        if (!innerClass.isInner) compilationException(
+            "Class is not inner",
+            innerClass
+        )
         else {
             outerThisFieldSymbols.getOrPut(innerClass) {
                 val outerClass = innerClass.parent as? IrClass
-                    ?: throw AssertionError("No containing class for inner class ${innerClass.dump()}")
+                    ?: compilationException(
+                        "No containing class for inner class",
+                        innerClass
+                    )
 
                 irFactory.buildField {
                     origin = IrDeclarationOrigin.FIELD_FOR_OUTER_THIS

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/JsSingleAbstractMethodLowering.kt

@@ -8,10 +8,10 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
 import org.jetbrains.kotlin.backend.common.ScopeWithIr
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.lower.SingleAbstractMethodLowering
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.DescriptorVisibility
-import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrTypeOperatorCall
@@ -21,7 +21,6 @@ import org.jetbrains.kotlin.ir.types.classOrNull
 import org.jetbrains.kotlin.ir.types.defaultType
 import org.jetbrains.kotlin.ir.util.file
 import org.jetbrains.kotlin.ir.util.parentClassOrNull
-import org.jetbrains.kotlin.ir.util.render
 
 class JsSingleAbstractMethodLowering(context: CommonBackendContext) : SingleAbstractMethodLowering(context), BodyLoweringPass {
 
@@ -60,6 +59,7 @@ class JsSingleAbstractMethodLowering(context: CommonBackendContext) : SingleAbst
         // FE doesn't allow type parameters for now.
         // And since there is a to-do in common SingleAbstractMethodLowering (at function visitTypeOperator),
         // we don't have to be more saint than a pope here.
-        return typeOperand.classOrNull?.defaultType ?: error("Unsupported SAM conversion: ${typeOperand.render()}")
+        return typeOperand.classOrNull?.defaultType
+            ?: compilationException("Unsupported SAM conversion", typeOperand)
     }
 }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/MoveBodilessDeclarationsToSeparatePlace.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.DeclarationTransformer
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.addChild
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -14,10 +15,7 @@ import org.jetbrains.kotlin.ir.backend.js.utils.getJsQualifier
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl
 import org.jetbrains.kotlin.ir.symbols.impl.IrFileSymbolImpl
-import org.jetbrains.kotlin.ir.util.constructedClass
+import org.jetbrains.kotlin.ir.util.*
-import org.jetbrains.kotlin.ir.util.fqNameWhenAvailable
-import org.jetbrains.kotlin.ir.util.isEffectivelyExternal
-import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
 import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.name.FqName
@@ -134,7 +132,10 @@ fun validateIsExternal(packageFragment: IrPackageFragment) {
 fun validateNestedExternalDeclarations(declaration: IrDeclaration, isExternalTopLevel: Boolean) {
     fun IrPossiblyExternalDeclaration.checkExternal() {
         if (isExternal != isExternalTopLevel) {
-            error("isExternal validation failed for declaration ${declaration.render()}")
+            compilationException(
+                "isExternal validation failed for declaration",
+                declaration,
+            )
         }
     }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PrivateMembersLowering.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.DeclarationTransformer
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -118,7 +119,10 @@ class PrivateMembersLowering(val context: JsIrBackendContext) : DeclarationTrans
                     expression = (it.copyWithParameters() as IrExpressionBody).expression
                 }
                 is IrSyntheticBody -> it
-                else -> error("Unexpected body kind: ${it.javaClass}")
+                else -> compilationException(
+                    "Unexpected body kind",
+                    it,
+                )
             }
         }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyLazyInitLowering.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.DeclarationTransformer
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.isPure
 import org.jetbrains.kotlin.backend.common.ir.isTopLevel
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities.INTERNAL
@@ -266,7 +267,10 @@ private val IrDeclaration.correspondingProperty: IrProperty?
             is IrField -> propertyWithPersistentSafe {
                 correspondingPropertySymbol?.owner
             }
-            else -> error("Can be only IrProperty, IrSimpleFunction or IrField")
+            else -> compilationException(
+                "Can be only IrProperty, IrSimpleFunction or IrField",
+                this
+            )
         }
     }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyReferenceLowering.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.lower.createIrBuilder
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -20,7 +21,6 @@ import org.jetbrains.kotlin.ir.expressions.impl.IrFunctionExpressionImpl
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.types.classOrNull
 import org.jetbrains.kotlin.ir.util.file
-import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
 import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
 import org.jetbrains.kotlin.name.Name
@@ -101,7 +101,11 @@ class PropertyReferenceLowering(private val context: JsIrBackendContext) : BodyL
         }
 
         private fun buildGetterLambda(factory: IrSimpleFunction, reference: IrPropertyReference, boundValueParameters: List<IrValueParameter>): IrExpression {
-            val getter = reference.getter?.owner ?: error("Getter expected")
+            val getter = reference.getter?.owner
+                ?: compilationException(
+                    "Getter expected",
+                    reference
+                )
             return buildAccessorLambda(factory, getter, reference, boundValueParameters)
         }
 
@@ -117,10 +121,17 @@ class PropertyReferenceLowering(private val context: JsIrBackendContext) : BodyL
             val superName = when (accessor.symbol) {
                 reference.getter -> "get"
                 reference.setter -> "set"
-                else -> error("Unexpected accessor ${accessor.render()}")
+                else -> compilationException(
+                    "Unexpected accessor",
+                    accessor
+                )
             }
 
-            val classifier = (reference.type as IrSimpleType).classOrNull ?: error("Simple type expected")
+            val classifier = (reference.type as IrSimpleType).classOrNull
+                ?: compilationException(
+                    "Simple type expected",
+                    reference
+                )
             val supperAccessor =
                 classifier.owner.declarations.filterIsInstance<IrSimpleFunction>().single { it.name.asString() == superName }
 

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/SecondaryCtorLowering.kt

@@ -7,6 +7,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
 import org.jetbrains.kotlin.backend.common.DeclarationTransformer
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.getOrPut
 import org.jetbrains.kotlin.backend.common.ir.ValueRemapper
 import org.jetbrains.kotlin.backend.common.ir.copyTo
@@ -264,7 +265,11 @@ private class CallsiteRedirectionTransformer(private val context: JsIrBackendCon
         val target = expression.symbol.owner
         return if (target.isSecondaryConstructorCall) {
             val factory = with(context) {
-                if (es6mode) mapping.secondaryConstructorToDelegate[target] ?: error("Not found IrFunction for secondary ctor")
+                if (es6mode) mapping.secondaryConstructorToDelegate[target]
+                    ?: compilationException(
+                        "Not found IrFunction for secondary ctor",
+                        expression
+                    )
                 else buildConstructorFactory(target, target.parentAsClass)
             }
             replaceSecondaryConstructorWithFactoryFunction(expression, factory.symbol)
@@ -279,7 +284,11 @@ private class CallsiteRedirectionTransformer(private val context: JsIrBackendCon
         return if (target.isSecondaryConstructorCall) {
             val klass = target.parentAsClass
             val delegate = with(context) {
-                if (es6mode) mapping.secondaryConstructorToDelegate[target] ?: error("Not found IrFunction for secondary ctor")
+                if (es6mode) mapping.secondaryConstructorToDelegate[target]
+                    ?: compilationException(
+                        "Not found IrFunction for secondary ctor",
+                        expression
+                    )
                 else buildConstructorDelegate(target, klass)
             }
             val newCall = replaceSecondaryConstructorWithFactoryFunction(expression, delegate.symbol)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/TypeOperatorLowering.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.ir.backend.js.lower
 
 import org.jetbrains.kotlin.backend.common.BodyLoweringPass
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.isPure
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -262,7 +263,11 @@ class TypeOperatorLowering(val context: JsIrBackendContext) : BodyLoweringPass {
 
             private fun generateTypeCheckWithTypeParameter(argument: IrExpression, toType: IrType): IrExpression {
                 val typeParameterSymbol =
-                    (toType.classifierOrNull as? IrTypeParameterSymbol) ?: error("expected type parameter, but $toType")
+                    (toType.classifierOrNull as? IrTypeParameterSymbol)
+                        ?: compilationException(
+                            "expected type parameter, but $toType",
+                            argument
+                        )
 
                 val typeParameter = typeParameterSymbol.owner
 
@@ -371,7 +376,10 @@ class TypeOperatorLowering(val context: JsIrBackendContext) : BodyLoweringPass {
                     toType.isLong() -> JsIrBuilder.buildCall(context.intrinsics.jsToLong).apply {
                         putValueArgument(0, argument())
                     }
-                    else -> error("Unreachable execution (coercion to non-Integer type")
+                    else -> compilationException(
+                        "Unreachable execution (coercion to non-Integer type)",
+                        expression
+                    )
                 }
 
                 newStatements += if (isNullable) JsIrBuilder.buildIfElse(toType, nullCheck(argument()), litNull, casted) else casted

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/calls/EnumIntrinsicsTransformer.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.lower.calls
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
 import org.jetbrains.kotlin.ir.util.irCall
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
@@ -27,7 +28,10 @@ class EnumIntrinsicsTransformer(private val context: JsIrBackendContext) : Calls
         if (!enum.isEnumClass) return call
         val staticMethod = enum.findDeclaration(staticMethodPredicate)
         if (staticMethod == null || !staticMethod.isStaticMethodOfClass)
-            throw IllegalStateException("Enum class should have static method for ${call.symbol.owner.name}")
+            compilationException(
+                "Enum class should have static method for ${call.symbol.owner.name}",
+                call
+            )
 
         return irCall(call, staticMethod.symbol)
     }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/coroutines/AbstractSuspendFunctionsLowering.kt

@@ -364,7 +364,11 @@ abstract class AbstractSuspendFunctionsLowering<C : CommonBackendContext>(val co
                 val thisReceiver = this.dispatchReceiverParameter!!
 
                 val boundFields =
-                    context.mapping.capturedFields[coroutineClass] ?: error("No captured values for class ${coroutineClass.render()}")
+                    context.mapping.capturedFields[coroutineClass]
+                        ?: compilationException(
+                            "No captured values",
+                            coroutineClass
+                        )
 
                 val irBuilder = context.createIrBuilder(symbol, startOffset, endOffset)
                 body = irBuilder.irBlockBody(startOffset, endOffset) {
@@ -393,7 +397,11 @@ abstract class AbstractSuspendFunctionsLowering<C : CommonBackendContext>(val co
 
         private fun transformInvokeMethod(createFunction: IrSimpleFunction, stateMachineFunction: IrSimpleFunction) {
             val irBuilder = context.createIrBuilder(function.symbol, startOffset, endOffset)
-            val thisReceiver = function.dispatchReceiverParameter ?: error("Expected dispatch receiver for invoke")
+            val thisReceiver = function.dispatchReceiverParameter
+                ?: compilationException(
+                    "Expected dispatch receiver for invoke",
+                    function
+                )
             val functionBody = function.body as IrBlockBody
             functionBody.statements.clear()
             functionBody.statements.addAll(irBuilder.irBlockBody(startOffset, endOffset) {

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/coroutines/AddContinuationToFunctionCallsLowering.kt

@@ -15,7 +15,6 @@ import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrBody
 import org.jetbrains.kotlin.ir.expressions.IrCall
 import org.jetbrains.kotlin.ir.expressions.IrExpression
-import org.jetbrains.kotlin.ir.util.fqNameWhenAvailable
 import org.jetbrains.kotlin.ir.util.irCall
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
 import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/IrElementToJsExpressionTransformer.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.transformers.irToJs
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.isElseBranch
 import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.ir.backend.js.utils.JsGenerationContext
@@ -58,8 +59,14 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
             is IrConstKind.Byte -> JsIntLiteral(kind.valueOf(expression).toInt())
             is IrConstKind.Short -> JsIntLiteral(kind.valueOf(expression).toInt())
             is IrConstKind.Int -> JsIntLiteral(kind.valueOf(expression))
-            is IrConstKind.Long -> throw IllegalStateException("Long const should have been lowered at this point")
+            is IrConstKind.Long -> compilationException(
-            is IrConstKind.Char -> throw IllegalStateException("Char const should have been lowered at this point")
+                "Long const should have been lowered at this point",
+                expression
+            )
+            is IrConstKind.Char -> compilationException(
+                "Char const should have been lowered at this point",
+                expression
+            )
             is IrConstKind.Float -> JsDoubleLiteral(toDoubleConst(kind.valueOf(expression)))
             is IrConstKind.Double -> JsDoubleLiteral(kind.valueOf(expression))
         }.withSource(expression, context)
@@ -98,7 +105,11 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
                 "${field.render()} in non-external class ${fieldParent.render()}"
             }
 
-            val receiver = expression.receiver?.accept(this, context) ?: error("Expect expression.receiver to not be null")
+            val receiver = expression.receiver?.accept(this, context)
+                ?: compilationException(
+                    "Expect expression.receiver to not be null",
+                    expression
+                )
             return JsNameRef(field.getJsNameOrKotlinName().identifier, receiver).withSource(expression, context)
         }
 
@@ -204,9 +215,16 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
     override fun visitCall(expression: IrCall, context: JsGenerationContext): JsExpression {
         if (context.checkIfJsCode(expression.symbol)) {
             val statements = translateJsCodeIntoStatementList(
-                expression.getValueArgument(0) ?: error("JsCode is expected"),
+                expression.getValueArgument(0)
+                    ?: compilationException(
+                        "JsCode is expected",
+                        expression
+                    ),
                 context.staticContext.backendContext
-            ) ?: error("Cannot compute js code for ${expression.render()}")
+            ) ?: compilationException(
+                "Cannot compute js code",
+                expression
+            )
 
             if (statements.isEmpty()) return JsPrefixOperation(JsUnaryOperator.VOID, JsIntLiteral(3)) // TODO: report warning or even error
 
@@ -250,7 +268,10 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
     override fun visitTypeOperator(expression: IrTypeOperatorCall, data: JsGenerationContext): JsExpression {
         return when (expression.operator) {
             IrTypeOperator.REINTERPRET_CAST -> expression.argument.accept(this, data)
-            else -> error("All type operator calls except REINTERPRET_CAST should be lowered at this point: ${expression.operator}")
+            else -> compilationException(
+                "All type operator calls except REINTERPRET_CAST should be lowered at this point",
+                expression
+            )
         }.withSource(expression, data)
     }
 
@@ -305,14 +326,20 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
                     expression.arguments.map { it.accept(this, data) }
                 )
 
-            else -> error("Unexpected operator ${expression.operator}: ${expression.render()}")
+            else -> compilationException(
+                "Unexpected operator ${expression.operator}",
+                expression
+            )
         }.withSource(expression, data)
 
     override fun visitRawFunctionReference(expression: IrRawFunctionReference, data: JsGenerationContext): JsExpression {
         val name = when (val function = expression.symbol.owner) {
             is IrConstructor -> data.getNameForConstructor(function)
             is IrSimpleFunction -> data.getNameForStaticFunction(function)
-            else -> error("Unexpected function kind")
+            else -> compilationException(
+                "Unexpected function kind",
+                expression
+            )
         }
         return JsNameRef(name).withSource(expression, data)
     }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/IrElementToJsStatementTransformer.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.transformers.irToJs
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
 import org.jetbrains.kotlin.ir.backend.js.utils.JsGenerationContext
 import org.jetbrains.kotlin.ir.backend.js.utils.emptyScope
@@ -134,9 +135,16 @@ class IrElementToJsStatementTransformer : BaseIrElementToJsNodeTransformer<JsSta
     override fun visitCall(expression: IrCall, data: JsGenerationContext): JsStatement {
         if (data.checkIfJsCode(expression.symbol)) {
             val statements = translateJsCodeIntoStatementList(
-                expression.getValueArgument(0) ?: error("JsCode is expected"),
+                expression.getValueArgument(0)
+                    ?: compilationException(
+                        "JsCode is expected",
+                        expression
+                    ),
                 data.staticContext.backendContext
-            ) ?: error("Cannot compute js code for ${expression.render()}")
+            ) ?: compilationException(
+                "Cannot compute js code",
+                expression
+            )
             return when (statements.size) {
                 0 -> JsEmpty
                 1 -> statements.single().withSource(expression, data)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/JsClassGenerator.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.transformers.irToJs
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.backend.js.export.isAllowedFakeOverriddenDeclaration
@@ -94,7 +95,10 @@ class JsClassGenerator(private val irClass: IrClass, val context: JsGenerationCo
                 is IrField -> {
                 }
                 else -> {
-                    error("Unexpected declaration in class: ${declaration.render()}")
+                    compilationException(
+                        "Unexpected declaration in class",
+                        declaration
+                    )
                 }
             }
         }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/JsIntrinsicTransformers.kt

@@ -5,17 +5,21 @@
 
 package org.jetbrains.kotlin.ir.backend.js.transformers.irToJs
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
-import org.jetbrains.kotlin.ir.backend.js.utils.*
+import org.jetbrains.kotlin.ir.backend.js.utils.JsGenerationContext
+import org.jetbrains.kotlin.ir.backend.js.utils.Namer
+import org.jetbrains.kotlin.ir.backend.js.utils.getClassRef
+import org.jetbrains.kotlin.ir.backend.js.utils.invokeFunForLambda
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrConstructor
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
-import org.jetbrains.kotlin.ir.expressions.*
+import org.jetbrains.kotlin.ir.expressions.IrCall
+import org.jetbrains.kotlin.ir.expressions.IrFunctionReference
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.ir.types.classifierOrFail
 import org.jetbrains.kotlin.ir.util.getInlineClassBackingField
-import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.js.backend.ast.*
 
 typealias IrCallTransformer = (IrCall, context: JsGenerationContext) -> JsExpression
@@ -91,7 +95,10 @@ class JsIntrinsicTransformers(backendContext: JsIrBackendContext) {
             add(intrinsics.jsClass) { call, context ->
                 val typeArgument = call.getTypeArgument(0)
                 typeArgument?.getClassRef(context)
-                    ?: error("Type argument of jsClass must be statically known class, but " + typeArgument?.render())
+                    ?: compilationException(
+                        "Type argument of jsClass must be statically known class",
+                        typeArgument
+                    )
             }
 
             add(intrinsics.jsNewTarget) { _, _ ->
@@ -116,7 +123,12 @@ class JsIntrinsicTransformers(backendContext: JsIrBackendContext) {
                 typeArgument.getClassRef(context)
             }
 
-            addIfNotNull(intrinsics.jsCode) { _, _ -> error("Should not be called") }
+            addIfNotNull(intrinsics.jsCode) { call, _ ->
+                compilationException(
+                    "Should not be called",
+                    call
+                )
+            }
 
             add(intrinsics.jsArrayLength) { call, context ->
                 val args = translateCallArguments(call, context)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/JsNameLinkingNamer.kt

@@ -12,7 +12,6 @@ import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
 import org.jetbrains.kotlin.ir.types.IrSimpleType
 import org.jetbrains.kotlin.ir.util.isEffectivelyExternal
 import org.jetbrains.kotlin.ir.util.parentAsClass
-import org.jetbrains.kotlin.ir.util.render
 import org.jetbrains.kotlin.js.backend.ast.*
 import org.jetbrains.kotlin.utils.DFS
 import org.jetbrains.kotlin.utils.addToStdlib.safeAs

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/jsAstUtils.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.ir.backend.js.transformers.irToJs
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.backend.common.ir.isElseBranch
 import org.jetbrains.kotlin.backend.common.ir.isSuspend
 import org.jetbrains.kotlin.ir.IrElement
@@ -159,7 +160,10 @@ fun translateCall(
             return when (function) {
                 property.getter -> nameRef
                 property.setter -> jsAssignment(nameRef, arguments.single())
-                else -> error("Function must be an accessor of corresponding property")
+                else -> compilationException(
+                    "Function must be an accessor of corresponding property",
+                    function
+                )
             }
         }
     }

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/utils/IrResolveUtils.kt

@@ -5,23 +5,23 @@
 
 package org.jetbrains.kotlin.ir.backend.js.utils
 
+import org.jetbrains.kotlin.backend.common.compilationException
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.declarations.IrConstructor
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.util.collectRealOverrides
-import org.jetbrains.kotlin.ir.util.render
 
 val IrFunction.realOverrideTarget: IrFunction
     get() = when (this) {
         is IrSimpleFunction -> this.realOverrideTarget
         is IrConstructor -> this
-        else -> error(this)
+        else -> compilationException("Unexpected declaration", this)
     }
 
 val IrSimpleFunction.realOverrideTarget: IrSimpleFunction
     get(): IrSimpleFunction {
         val realOverrides = collectRealOverrides()
-        return realOverrides.find { it.modality != Modality.ABSTRACT } ?: realOverrides.firstOrNull() ?:
+        return realOverrides.find { it.modality != Modality.ABSTRACT } ?: realOverrides.firstOrNull()
-                error("No real override target found for ${this.render()}")
+        ?: compilationException("No real override target found", this)
     }