Changelog

Backend. IR

• KT-42239 IR: Report compilation error instead of throwing an exception (effectively crash compiler) when some declaration wasn't found while deserialization

Compiler

New Features

• KT-44373 FIR: support error / warning suppression

Fixes

• KT-38342 FIR: Consider renaming diagnostic from AMBIGUITY to OVERLOAD_RESOLUTION_AMBIGUITY
• KT-38476 [FIR] Forgotten type approximation
• KT-44682 raw FIR: incorrect source for qualified access
• KT-44813 FIR bootstrap: various errors in collection-like classes
• KT-45508 False negative ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED on a fake override with an abstract super class member
• KT-45578 REPL: Unresolved imports are cached for the subsequent compilations
• KT-45685 JVM IR: capturing a variable into crossinline suspend lambda makes the function inside inline function no longer unbox Result
• KT-46235 JVM IR: Stack overflow error on large expressions
• KT-46578 JVM IR: IllegalAccessError accessing property delegated to java super class protected field reference
• KT-46597 JVM IR: AssertionError: SyntheticAccessorLowering should not attempt to modify other files - crossinline accessor
• KT-46601 JVM / IR: IllegalStateException: "Can't find method 'invokeinvoke`" when default lambda takes inline class parameters
• KT-46759 JVM IR: CCE in LateinitUsageLowering on @JvmStatic lateinit property in object
• KT-46777 [Native] [IR] Support suspend function as super type
• KT-46802 JVM / IR: "UnsupportedOperationException: Unknown structure of ADAPTER_FOR_CALLABLE_REFERENCE" caused by function reference on @JvmStatic function with unused default parameters
• KT-46813 JVM / IR: "ClassCastException: Integer cannot be cast to class Result" with Flow and fold method
• KT-46822 JVM IR: StackOverflowError on compiling a large data class
• KT-46837 Backend Internal error: Exception during IR lowering: assert at IrOverridingUtilKt.buildFakeOverrideMember
• KT-46921 JVM / IR: "IndexOutOfBoundsException: Cannot pop operand off an empty stack" caused by crossinline parameter and label return

Docs & Examples

• KT-33783 Document when a range created with rangeTo is empty

IDE

• KT-44825 Can't open Kotlin compiler settings in newly created project

IDE. Gradle Integration

• KT-45277 Wrong jvm target in gradle module in IDEA

IDE. Native

• KT-39320 [Commonizer] Reduce memory consumption

JavaScript

• KT-44394 KJS / IR: null companion object for existed stdlib interfaces NodeFilter and SVGUnitTypes
• KT-45361 KJS / IR: IrConstructorCall representing annotation always returns Unit
• KT-46859 Exception during IR lowering: NullPointerException was thrown at: optimizations.FoldConstantLowering.tryFoldingUnaryOps

Libraries

• KT-46002 Support all Unicode digit chars in digitToInt (JS and Native)
• KT-46184 Equivalize isLowerCase and isUpperCase behavior in all platforms

Middle-end. IR

• KT-40425 IrGenerationExtension. Support simple reporting to compiler output (for development/debug)
• KT-45308 Psi2ir: "AssertionError: TypeAliasDescriptor expected" caused by using typealias from one module as a type in another module without a transitive dependency

Native. ObjC Export

• KT-38600 Kotlin MP iOS Target doesn't contain kdoc comments

Reflection

• KT-10838 Provide sensible toString() for property accessors in reflection

Tools. CLI

• KT-14772 ISE (FNFE "Not a directory") on compilation with destination argument clashing with an existing file which is not a directory
• KT-18184 CompileEnvironmentException: Invalid jar path on "-d" with .jar in non-existing directory
• KT-40977 Report a readable diagnostic on empty -J argument in CLI

Tools. Compiler Plugins

• KT-45538 Serialization, JVM IR: "AssertionError: No such type argument slot in IrConstructorCallImpl" with inner classes
• KT-46469 Kotlin Lombok: accessors with AccessLevel.MODULE fail to resolve
• KT-46529 Kotlin Lombok: with [@Accessors](https://github.com/Accessors) without explicit prefix the prefix from lombok.config is not taken into account
• KT-46531 Kotlin Lombok: lombok.getter.noIsPrefix is processed depending on character case

Tools. Gradle

• KT-24533 Kapt should not run when annotation processors are not configured
• KT-46401 Deprecate 'kotlin.parallel.tasks.in.project' build property
• KT-46820 Gradle: kotlinc (1.5.0) race condition causes a NullPointerException

Tools. Gradle. JS

• KT-46976 KJS: Broken support for dynamically created webpack.config.d

Tools. Gradle. Multiplatform

• KT-46394 Multiplatform: Gradle 7 support
• KT-46517 Add kotlin-project-model as api dependency to kotlin-gradle-plugin-api

Tools. Gradle. Native

• KT-46680 Register concrete "embedAndSign" tasks instead umbrella
• KT-46892 Kotlin Multiplatform Gradle Plugin: EmbedAndSign task always contains a default framework name

Tools. kapt

• KT-31146 kapt: executableElement.getAnnotation(JvmOverloads::class.java) returns null
• KT-35167 Kapt Gradle plugin doesn't handle --module-path javac argument
• KT-41581 Kapt doesn't have line breaks between warnings

Checksums

| File | Sha256 | | --- | --- | | kotlin-compiler-1.5.20-RC.zip | 3537d9e9c57f4afc4e8359f695da98f631319464ba1330c70b1b4aca5d30b84e | | kotlin-native-linux-1.5.20-RC.tar.gz | d84ea3f3187aaeb21cceb5402cc74951a7a737799ce68a701f58b76e5ef534a0 | | kotlin-native-macos-1.5.20-RC.tar.gz | b97b9cadb3791905dc15c090f3981dcb8a6eb4d31cf3721763070e12009d4b8e | | kotlin-native-windows-1.5.20-RC.zip | c4ba183f211652881434ce4b41bde87b626d319134f5163bb8c295c186f3e1d5 |