CHANGELOG

1.2.30

Android

• KT-19300 [AS3.0] Android extensions, Parcelable: editor shows warning about incomplete implementation on a class with Parcelize annotation
• KT-22168 "Kotlin Android | Illegal Android Identifier" inspection reports non-instrumentation unit tests
• KT-22700 Android Extensions bind views with dot in ID

Compiler

New Features

• KT-17336 Introduce suspendCoroutineUninterceptedOrReturn coroutine intrinsic function
• KT-22766 Imitate "suspend" modifier in 1.2.x by stdlib function

Performance Improvements

• KT-5177 Optimize code generation for 'for' loop with withIndex()
• KT-16880 Smarter detection of tail-suspending unit invocations

Fixes

• KT-10494 IAE in CheckMethodAdapter.checkInternalName when declaring classes inside method with non-standard name
• KT-16079 Internal error when using suspend operator plus
• KT-17091 Converting to SAM Java type appends non-deterministic hash to class name
• KT-18522 Internal compiler error with IndexOutOfBoundsException, "Exception while analyzing expression"
• KT-18578 Compilation failure with @JsonInclude and default interface method
• KT-19786 Kotlin — unable to override a Java function with @nullable vararg argument
• KT-20466 JSR305 false positive for elvis operator
• KT-20705 Tail suspend call optimization doesn't work in when block
• KT-20708 Tail suspend call optiomization doesn't work in some branches
• KT-20855 Unnecessary safe-call reported on nullable type
• KT-21165 Exception from suspending function is not caught
• KT-21238 Nonsensical warning "Expected type does not accept nulls in Java, but the value may be null in Kotlin"
• KT-21258 Raw backing field value exposed via accessors?
• KT-21303 Running on JDK-10-ea-31 leads to ArrayIndexOutOfBoundsException
• KT-21642 Back-end (JVM) Internal error: Couldn't transform method node on using open keyword with suspend for a top-level function
• KT-21759 Compiler crashes on two subsequent return statements in suspend function
• KT-22029 Fold list to pair with destructuring assignment and inner when results in Exception
• KT-22345 OOM in ReturnUnitMethodReplacer
• KT-22410 invalid compiler optimization for nullable cast to reified type
• KT-22577 Compiler crashes when coroutineContext is used inside of inlined lambda

IDE

New Features

• KT-8352 Pasting Kotlin code into package could create .kt file
• KT-16710 Run configuration to run main() as a Node CLI app
• KT-16833 Allow mixing Java and Kotlin code in "Analyze Data Flow..."
• KT-21531 JS: add support for running specific test from the gutter icon with Jest testing framework

Performance Improvements

• KT-21450 Add caching for Module.languageVersionSettings
• KT-21517 OOME during find usages

Fixes

• KT-7316 Go to declaration in Kotlin JavaScript project navigates to JDK source in some cases
• KT-8563 Refactor / Rename inserts line breaks without reason
• KT-11467 Editor: var property in primary constructor is shown not underscored, same as val
• KT-13509 Don't show run line markers for top-level functions annotated with @test
• KT-13971 Kotlin Bytecode tool window: Decompile is available for incompilable code, CE at MemberCodegen.genFunctionOrProperty()
• KT-15000 Do not spell check overridden declaration names
• KT-15331 "Kotlin not configured" notification always shown for common module in multiplatform project
• KT-16333 Cannot navigate to super declaration via shortcut
• KT-16976 Introduce special SDK for Kotlin JS projects to avoid using JDK
• KT-18445 multiplatform project: provide more comfortable way to process cases when there are missed method implemenation in the implementation class
• KT-19194 Some Live Templates should probably be enabled also for "expressions" not only "statements"
• KT-20281 multiplatform:Unresolved service JavaDescriptorResolver on a file with several header declarations and gutters not shown
• KT-20470 IntelliJ indent guide/invisible brace matching hint tooltip doesn't show context
• KT-20522 Add "Build" action in "Before launch" block when create new JS run configuration (for test)
• KT-20915 Add quickfix for ‘Implicit (unsafe) cast from dynamic type’
• KT-20971 Cannot navigate to sources of compiled common dependency
• KT-21115 Incomplete actual class should still have navigation icon to expect class
• KT-21688 UIdentifier violates JvmDeclarationElement contract
• KT-21874 Unexpected IDE error "Unknown type [typealias ...]"
• KT-21958 Support "Alternative source available" for Kotlin files
• KT-21994 Collapsed comments containing * get removed in the summary line.
• KT-22179 For properties overridden in object literals, navigation to inherited properties is missing indication of a type they are overridden
• KT-22214 Front-end Internal error: Failed to analyze declaration
• KT-22230 Reformatting code to Kotlin style indents top-level typealiases with comments
• KT-22242 Semantic highlighting uses different colors for the same 'it' variable and same color for different 'it's
• KT-22301 Don't require space after label for lambda
• KT-22346 Incorrect indentation for chained context extension functions (lambdas) when using Kotlin style guide
• KT-22356 Update status of inspection "Kotlin JVM compiler configured but no stdlib dependency" after pom file update, not on re-import
• KT-22360 MPP: with "Create separate module per source set" = No expectedBy dependency is imported not transitively
• KT-22374 "Join lines" works incorrectly in case of line containing more than one string literal
• KT-22473 Regression in IntelliJ Kotlin Plugin 1.2.20, settings.gradle.kts script template is wrong
• KT-22508 Auto-formatting should insert an indentation for default parameter values
• KT-22557 Dead 'Apply' button, when setting code style
• KT-22565 Cant do PsiAnchor.create on annotation in annotation
• KT-22570 Can't add import in "Packages to Use Import with '*'" section on "Import" tab in Code Style -> Kotlin
• KT-22641 Auto-formatting adds extra indent to a closing square bracket on a separate line
• KT-22734 LinkageError: "loader constraint violation: when resolving method PsiTreeUtilKt.parentOfType()" at KotlinConverter.convertPsiElement$uast_kotlin()

IDE. Debugger

• KT-20351 Stepping over a line with two inline stdlib functions steps into the second function
• KT-21312 Confusing Kotlin (JavaScript) run configuration
• KT-21945 Double stop on same line during step over if inline call is present

IDE. Inspections and Intentions

New Features

• KT-18124 Inspection to get rid of unnecessary ticks in references
• KT-22038 Inspection to replace the usage of Java Collections methods on subtypes of MutableList with the methods from Kotlin stdlib
• KT-22152 "Create Class" quickfix should support creating the class in a new file and selecting the package for that file
• KT-22171 Add Intention for single character substring
• KT-22303 Inspection to detect Type!.inlineWithNotNullReceiver() calls
• KT-22409 Intention for changing property setter accessibility

Performance Improvements

• KT-21137 Kotlin instantiates something expensive via reflection when highlighting Java file

Fixes

• KT-15176 Remove "Create type alias" intention when called on java class
• KT-18007 Inspection doesn't suggest Maven Plugin for kotlin-stdlib-jre8
• KT-18308 'Remove braces from else statement' intention breaks code
• KT-18912 multiplatform project: Convert to enum class: header sealed class cannot convert nested objects to enum values
• KT-21114 IOE: create actual members for expected with companion
• KT-21600 suspend modifier should go after override in overridden suspend functions
• KT-21881 Replace "If" with safe access intention false positive
• KT-22054 Replace '!=' with 'contentEquals' should be replace '==' with 'contentEquals'
• KT-22097 Redundant Unit inspection false positive for single expression function
• KT-22159 "Replace return with 'if' expression" should not place return before expressions of type Nothing
• KT-22167 "Add annotation target" quick fix does nothing and disappears from menu
• KT-22221 QuickFix to remove unused constructor parameters shouldn't delete parenthesis
• KT-22335 IOE from KotlinUnusedImportInspection.scheduleOptimizeImportsOnTheFly
• KT-22339 Remove setter parameter type: error while creating problem descriptor
• KT-22364 Redundant setter is not reported for overridden fields
• KT-22484 The warning highlight for redundant !ischeck for object types isn't extended to the full operator
• KT-22538 "Redundant type checks for object" inspection application breaks smart cast for an object's field or function

IDE. Refactorings

New Features

• KT-17047 Refactorings for related standard "scoping functions" conversion: 'let' <-> 'run', 'apply' <-> 'also'

Fixes

• KT-12365 Renaming invoke function should remove operator modifier and insert function call for implicit usages
• KT-17977 Move class to upper level creates file with wrong file name
• KT-21719 Actual typealias not renamed on expected declaration rename
• KT-22200 Overriden function generated from completion is missing suspend modifier
• KT-22359 Refactor / Rename file: Throwable at RenameProcessor.performRefactoring()
• KT-22461 Rename doesn't work on private top-level members of multi-file parts
• KT-22476 Rename it parameter fails after replacing for-each with mapNotNull
• KT-22564 Rename doesn't warn for conflicts
• KT-22705 Refactor/Rename: rename of invoke function with lambda parameter to get breaks an implicit call
• KT-22708 Refactor/Rename function using some stdlib name leads to incompilable code

JavaScript

• KT-20735 JS: kotlin.test-js integration tests terminate build on failure
• KT-22638 Function reference not working in js from extension

Libraries

• KT-22620 Add support for TestNG in kotlin.test
• KT-16661 Performance overhead in string splitting in Kotlin versus Java?
• KT-22042 Suboptimal Strings#findAnyOf
• KT-21154 kotlin-test-junit doesn't provide JUnitAsserter when test body is run in another thread

Tools

• KT-22196 kotlin-compiler-embeddable bundles outdated kotlinx.coroutines since 1.1.60
• KT-22549 Service is dying during compilation

Tools. CLI

• KT-19051 Suppress Java 9 illegal access warnings

Tools. Gradle

• KT-18462 Add 'org.jetbrains.kotlin.platform.android' plugin.
• KT-18821 Gradle plugin should not resolve dependencies at configuration time

Tools. Incremental Compile

• KT-22192 Make precise java classes tracking in Gradle enabled by default

Tools. J2K

• KT-21635 J2K: create "inspection based post-processing"

Tools. REPL

• KT-12037 REPL crashes when trying to :load with incorrect filename

Tools. kapt

• KT-22350 kdoc comment preceding enum method causes compilation failure
• KT-22386 kapt3 fails when project has class named System
• KT-22468 Kapt fails to convert array type to anonymous array element type
• KT-22469 Kapt 1.2.20+ may fail to process classes with KDoc
• KT-22493 Kapt: NoSuchElementException in KotlinCliJavaFileManagerImpl if class first character is dollar sign
• KT-22582 Kapt: Enums inside enum values should be forbidden
• KT-22711 Deprecate original kapt (aka kapt1)

Previous releases

This release also includes the fixes and improvements from the previous
1.2.21 release.