Hello I have a Kotlin compiler plugin in my MPP project that

Question

Hello I have a Kotlin compiler plugin in my MPP project that behaves as Annotation Processor because Annotation Processors doesn t work on MPP according to <https youtu be w GMlaziIyo t=118> I also have a Gradle Plugin that wraps my plugin which eventually is used in my main module It all works nice and smoothly BUT I need the plugin to be run before compiling the main project I was wondering whether I can have something like `compile dependsOn something ` but I don t know what task should I put in the parenthesis I don t create explicitly any tasks

Fleshgrinder · Answer

`compileKotlin`

Nikita Khlebushkin · Answer

< Fleshgrinder> is it the dependency or depender

Fleshgrinder · Answer

Depender `tasks compileKotlin get dependsOn yourTask `

Fleshgrinder · Answer

You can always run ` gradlew whatever it is you want to hook into e g publish console=plain` and it shows you every task it runs and in which order

Nikita Khlebushkin · Answer

Thanks < Fleshgrinder> but I don t know what should it be dependent on I suppose it should be some default plugin task like `applyMyPlugin` but there is no such task

Nikita Khlebushkin · Answer

I didn t create any tasks in that plugin manually at least

Fleshgrinder · Answer

I missed the last part in your message Usually there is nothing you need to do here because your plugin is part of the Kotlin compilation It runs with it

Fleshgrinder · Answer

`compileKotlin` is basically the same not exactly as `kotlinc File kt` and with your plugin that would be `kotlinc Xplugin=path to your plugin jar File kt`

Fleshgrinder · Answer

Your Gradle plugin is simply providing that ` Xplugin=` part to the `compileKotlin` task

Nikita Khlebushkin · Answer

But is it possible to change the compilation order

Nikita Khlebushkin · Answer

So that the plugin would be run and generate the classes before the rest of the project is compiled

Fleshgrinder · Answer

Not really because your plugin is executed as part of the compilation In other words as part of the class generation class as in ` class` file so byte code You need to add your additional definitions to the AST or directly produce byte code You cannot produce Kotlin files and feed them in because then it is not a compiler plugin

Fleshgrinder · Answer

The compiler calls your plugin for everything it parses You subscribed to something and probably filter it Like Kevin in the video who subscribed to every function that is being parsed You can now decide when to run AST before optimizations after optimizations and change how the compiler works

Nikita Khlebushkin · Answer

Thanks < Fleshgrinder> I ll dig into that direction

Nikita Khlebushkin · Answer

My status update is that I was able to force it run a bit earlier than before by registering as a ton of extensions like this ``` ClassBuilderInterceptorExtension registerExtension project extension ExpressionCodegenExtension registerExtension project extension SyntheticResolveExtension registerExtension project extension StorageComponentContainerContributor registerExtension project extension CompilerConfigurationExtension registerExtension project extension PreprocessedVirtualFileFactoryExtension registerExtension project extension ``` Now the build is coming through BUT in 30 only It seems like the compiler and my plugin are racing each other and sometimes when my plugin wins the generated files are on their places when the compiler is looking for them Is there anything I can do about flakiness of the builds

Nikita Khlebushkin · Answer

I solved a problem with a dirty little hack I moved the generated files and the annotated files to another module and made the main project depend on this new module