Michael Hoisie
83383ab9e5
DefaultConstructorMarker is used as a marker to ensure that a constructor is unique for companion objects. Prior to this change, DefaultConstructorMarker was package private. Being package private worked when calling the DefaultConstructorMarker-marked constsructor using `invokespecial`, likely because the JVM may not perform strict access checks in this situation. However, when access checks are performed, trying to call a DefaultConstructorMarker-marked constructor will fail. This could happen if the constructor was called using reflection or the MethodHandle API. These APIs may be used by tools that perform bytecode instrumentation on Kotlin JVM bytecode, such as Robolectric. It also caused problems when using ByteBuddy validation. Fixes https://youtrack.jetbrains.com/issue/KT-20869
The Kotlin Standard Library
This module creates the standard library for Kotlin.
Notes for contributors
We use code generation to generate utility extension functions for some collection-like types like arrays, strings, Collection<T>, Sequence<T>, Map<K, V> etc.
These sources are placed into the generated folder and their names are prefixed with an underscore, for example, generated/_Collections.kt
To run the code generator, use the following command in the root directory of the project:
./gradlew :tools:kotlin-stdlib-gen:run
Note: on Windows type
gradlewwithout the leading./
This then runs the script which generates a significant part of stdlib sources from the templates written in a special Kotlin-based DSL.
Usage samples
If you want to author samples for the standard library, please head to the samples readme.