TemplateComponentRegistrar.kt

@AutoService(ComponentRegistrar::class)
class TemplateComponentRegistrar(
  private val defaultString: String,
  private val defaultFile: String,
) : ComponentRegistrar {

  @Suppress("unused") // Used by service loader
  constructor() : this(
    defaultString = "Hello, World!",
    defaultFile = "file.txt"
  )

  override fun registerProjectComponents(
    project: MockProject,
    configuration: CompilerConfiguration
  ) {
    val messageCollector = configuration.get(CLIConfigurationKeys.MESSAGE_COLLECTOR_KEY, MessageCollector.NONE)
    val string = configuration.get(TemplateCommandLineProcessor.ARG_STRING, defaultString)
    val file = configuration.get(TemplateCommandLineProcessor.ARG_FILE, defaultFile)

    IrGenerationExtension.registerExtension(project, TemplateIrGenerationExtension(messageCollector, string, file))
  }
}