Using Ant

• kotlin2js: Kotlin compiler targeting JavaScript;
• withKotlin: Task to compile Kotlin files when using the standard javac Ant task.

These tasks are defined in the kotlin-ant.jar library which is located in the lib folder for the Kotlin Compiler Ant version 1.8.2+ is required.

Targeting JVM with Kotlin-only source

When the project consists of exclusively Kotlin source code, the easiest way to compile the project is to use the kotlinc task:

If a project consists of multiple source roots, use src as elements to define paths:

<project name="Ant Task Test" default="build">
    <typedef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
    <target name="build">
        <kotlinc output="hello.jar">
            <src path="root1"/>
            <src path="root2"/>
        </kotlinc>
    </target>
</project>

Targeting JVM with Kotlin and Java source

If a project consists of both Kotlin and Java source code, while it is possible to use kotlinc, to avoid repetition of task parameters, it is recommended to use withKotlin task:

Targeting JavaScript with Prefix, PostFix and sourcemap options

<project name="Ant Task Test" default="build">
    <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
    <target name="build">
    </target>
</project>

The metaInfo option is useful, if you want to distribute the result of translation as a Kotlin/JavaScript library. If metaInfo was set to true, then during compilation additional JS file with binary metadata will be created. This file should be distributed together with the result of translation:

References

Complete list of elements and attributes are listed below:

<kotlinc src="${test.data}/hello.kt" output="${temp}/hello.jar">
    <compilerarg value="-Xno-inline"/>
    <compilerarg line="-Xno-call-assertions -Xno-param-assertions"/>
    <compilerarg value="-Xno-optimize"/>
</kotlinc>

The full list of arguments that can be used is shown when you run .