Hi! I have a compiler plugin with a FIR part and b...

# compiler

[Tóth István Zoltán]

Hi! I have a compiler plugin with a FIR part and backend IR part. The backend IR part works quite well, but the FIR part is stopped working somewhere on the road. Actually, it is not called any more. (Please note that the backend IR part works, so I the compiler recognises the plugin.)

I register the plugin like this:

class Z2CompilerPluginRegistrar : CompilerPluginRegistrar() {

    override val supportsK2 = true

    override fun ExtensionStorage.registerExtensions(configuration: CompilerConfiguration) {
        val options = Z2Options(
            resourceOutputDir = configuration.get(Z2Options.CONFIG_KEY_RESOURCE_DIR)!!
        )
        FirExtensionRegistrarAdapter.registerExtension(Z2PluginRegistrar())
        IrGenerationExtension.registerExtension(Z2GenerationExtension(options))
    }

}

The Z2PluginRegistrar is also very simple:

class Z2PluginRegistrar : FirExtensionRegistrar() {
    init {
        debug("Z2PluginRegistrar")
    }

    override fun ExtensionRegistrarContext.configurePlugin() {
        debug("configurePlugin")
        +::SchematicDeclarationGenerator
    }
}

The debug interestingly contains the init part but it does not contain the configurePlugin part. What do I do wrong? The FIR part worked well before, I might made a mistake during some refactoring but I can't figure out where the problem is.

The source code is public (this library is not officially published yet, so it's not even close to clean): https://github.com/spxbhuhb/z2/tree/main/z2-kotlin-plugin

Any help would be appreciated, thanks in advance.

[Javier]

Is it failing in both, IDE and tests?

[Javier]

I found the opposite, IR was not working after upgrading to 1.9.20+

[Javier]

I created a PR with the changes here here

[Tóth István Zoltán]

I don't test IDE integration and nothing fails. It simply does not run. I'm still on 1.9.10, deadlines and such. 🙂

[hfhbd]

Did you find a solution? I use the same api but the configurePlugin is never called. Or do we need to call it somehow by ourself?

[Javier]

I can share what is working for me:

• Kotlin version: 2.0.0-dev-7674
• resources/META-INF/services (check image)
• extend: CompilerPluginRegistrar to add it to the services
• inside fun ExtensionStorage.registerExtensions(configuration: CompilerConfiguration), call FirExtensionRegistrarAdapter.registerExtension(SomeFirExtension())
• SomeFirExtension extends FirExtensionRegistrar, and fun ExtensionRegistrarContext.configurePlugin() adds extensions, mainly I am using FirDeclarationGenerationExtension.
The previous setup is working in both, tests with the official test framework, and in IDEA, building it from IntelliJ Community sources.

[hfhbd]

which official test framework do you mean? I use dev.zacsweers.kctfork but this framework does not support 2.0.0-Beta1

[Javier]

you can see the usage of the official test framework in the OP repository.

Mainly check test, testData and test-gen.

About kctfork, I have no idea, I haven’t used it before.

[Javier]

A summary could be:

• Inside test you register the extensions and config everything
• Inside testData you put the Kotlin files to compile
• Inside test-gen the tests are generated based on the content of testData . To generate the tests you need to run a Gradle task

[hfhbd]

Okay, thank you, I will try it out.

[Tóth István Zoltán]

Thanks for the info Javier. The deadline that made me disappear had passed, I'll try out your setup to see if it works for me.

[Tóth István Zoltán]

I solved this one. I had to set the language version to 2 in gradle. In hindsight it is logical. :)