Kotlin 1.0.6 EAP

EAP
11

Kotlin 1.0.6 RC

Kotlin 1.0.6 RC is out!

What’s new

  • IDE and Gradle plugins are now compatible with Android Studio 2.3;
  • Fix incorrect inner class modifier for sealed inner classes;
  • All-open compiler plugin to make classes and its members open (useful for mocking).
  • No-arg compiler plugin that generates the default (zero-argument) class constructor (useful for JPA).
  • “Convert function type parameter to receiver” (and back), “Add names to call arguments” intentions;
  • Numerous fixes in the IDE plugin in inspections, intentions and Android Lint;
  • Performance issue fixes in the debugger;
  • Fixes in the experimental kapt.

The full changelog is avilable here.

All-open compiler plugin

All-open plugin makes classes and its members open without the explicit open keyword, so it becomes easier to use frameworks/libraries such as Spring AOP or Mockito. You can read the detailed information about all-open in the corresponding KEEP proposal.

We provide all-open plugin support for Gradle and Maven.

How to use all-open with Gradle

buildscript {
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-allopen:$kotlin_version"
    }
}

apply plugin: "kotlin-allopen"

allOpen {
    annotation("com.your.Annotation")
}

If the class (or any of its superclasses) is annotated with com.your.Annotation, the class itself and all its properties and functions will become all-open.

It even works with meta-annotations:

@com.your.Annotation
annotation class MyFrameworkAnnotation

@MyFrameworkAnnotation
class MyClass // will be all-open

We also provide the plugin for Spring:

buildscript {
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-allopen:$kotlin_version"
    }
}

apply plugin: "kotlin-spring"

Of course, you can use both kotlin-allopen and kotlin-spring in the same project.

How to use all-open with Maven

<plugin>
    <artifactId>kotlin-maven-plugin</artifactId>
    <groupId>org.jetbrains.kotlin</groupId>
    <version>${kotlin.version}</version>

    <configuration>
        <compilerPlugins>
            <!-- Or "spring" for the Spring support -->
            <plugin>all-open</plugin>
        </compilerPlugins>

        <pluginOptions>
            <option>all-open:annotation=com.your.Annotation</option>
        </pluginOptions>
    </configuration>

    <dependencies>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-maven-allopen</artifactId>
            <version>${kotlin.version}</version>
        </dependency>
    </dependencies>
</plugin>

No-arg compiler plugin

No-arg plugin generates an additional zero-argument constructor for annotated classes. The relevant proposal is available here. Note that the generated constructor is synthetic so it can’t be directly called both from Java and Kotlin; the only way to call it is by using reflection.

How to use no-arg in Gradle

The usage is similar with all-open.

buildscript {
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-noarg:$kotlin_version"
    }
}

// Or "kotlin-jpa" for Java Persistence API support
apply plugin: "kotlin-noarg"

noArg {
    annotation("com.your.Annotation")
}

How to use no-arg in Maven

<plugin>
    <artifactId>kotlin-maven-plugin</artifactId>
    <groupId>org.jetbrains.kotlin</groupId>
    <version>${kotlin.version}</version>

    <configuration>
        <compilerPlugins>
            <!-- Or "jpa" for the Java Persistence API support -->
            <plugin>no-arg</plugin>
        </compilerPlugins>

        <pluginOptions>
            <option>no-arg:annotation=com.your.Annotation</option>
        </pluginOptions>
    </configuration>

    <dependencies>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-maven-noarg</artifactId>
            <version>${kotlin.version}</version>
        </dependency>
    </dependencies>
</plugin>

How to get EAP build

For IntelliJ IDEA:

You can configure Early Access Preview channel in Tools → Kotlin → Configure Kotlin Plugin Updates. Change the update channel and press Check for updates now.

For Gradle or Maven:

Add https://dl.bintray.com/kotlin/kotlin-eap to your repositories.
Change the version of Kotlin dependencies (compiler and stdlib) to 1.0.6-eap-112.

Please do provide feedback and report any issues to our issue tracker (please specify your plugin version and IDE version).

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