Cannot be used with gradle kotlin DSL

[rongcuid]

Environment

• JDK version: 21.0.2
• Gradle version: 8,4
• gradle-jextract version: ___
• Operating system: Linux

How does this bug occur?

Trying to make a new project with gradle kotlin DSL:

import io.github.krakowski.jextract.JextractPlugin
import io.github.krakowski.jextract.JextractTask
import io.github.krakowski.jextract.LibraryDefinition

plugins {
    kotlin("jvm") version "1.9.22"
    id("application")
    id("c")
    id("io.github.krakowski.jextract") version "0.4.1"
}

group = "org.example"
version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
}

dependencies {
    testImplementation("org.jetbrains.kotlin:kotlin-test")
}

tasks.test {
    useJUnitPlatform()
}
kotlin {
    jvmToolchain(21)
}

configure<JextractTask> {
    // The header file from which we want to generate the bindings
    header("${project.projectDir}/src/main/c/native.h") {
        // The library name (don't worry about this for now)
        libraries = arrayOf("nativeLib")
        // The package under which all source files will be generated
        targetPackage = "org.nativelib"
        // The generated class name
        className = "NativeLib"
    }
}

What happens when the bug occurs?

When trying to configure jextract class, Val cannot be reassigned occurs.

Would you like to submit a PR fixing this bug?

[ ] YES [x] NO

[rongcuid]

Never mind, the real problem is I have no idea how gradle works.

The correct configuration (probably) is:

tasks.jextract {
    // The header file from which we want to generate the bindings
    header("${project.projectDir}/src/main/c/native.h") {
        // The library name (don't worry about this for now)
        libraries = listOf("nativeLib")
        // The package under which all source files will be generated
        targetPackage = "org.nativelib"
        // The generated class name
        className = "NativeLib"
    }
}

Maybe the author can clarify how the plugin is supposed to be used in the kotlin dsl? I am still not 100% sure.

[krakowski]

Hi @rongcuid,

Thanks for bringing this to my attention. I converted the demo project to Kotlin DSL, so that it's easier to get started.

• https://github.com/krakowski/jextract-demo

Please let me know if this helps with your issue :slightly_smiling_face:

[krakowski]

Closing due to inactivity