e.ultra.meta.0.76.0.source-code.KotlinProcessor.kt Maven / Gradle / Ivy

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"Annotation Processing and Code Generation Utils"

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package de.peekandpoke.ultra.meta

import java.io.File
import javax.annotation.processing.AbstractProcessor
import javax.annotation.processing.Completion
import javax.annotation.processing.ProcessingEnvironment
import javax.annotation.processing.RoundEnvironment
import javax.lang.model.SourceVersion
import javax.lang.model.element.AnnotationMirror
import javax.lang.model.element.Element
import javax.lang.model.element.ExecutableElement
import javax.lang.model.element.TypeElement

@Suppress("RedundantOverride")
abstract class KotlinProcessor(private val logPrefix: String) : AbstractProcessor(), ProcessorUtils {

    override fun getSupportedOptions(): Set = super.getSupportedOptions()

    override fun getSupportedSourceVersion(): SourceVersion = super.getSupportedSourceVersion()

    override fun getSupportedAnnotationTypes(): Set = super.getSupportedAnnotationTypes()

    override fun init(processingEnv: ProcessingEnvironment) = super.init(processingEnv)

    override fun getCompletions(
        element: Element?,
        annotation: AnnotationMirror?,
        member: ExecutableElement?,
        userText: String?
    ): Iterable =
        super.getCompletions(element, annotation, member, userText)

    abstract override fun process(annotations: Set, roundEnv: RoundEnvironment): Boolean

    /**
     * Get the context
     *
     * NOTICE: this MUST be a getter, otherwise super.processingEnv is not initialized
     */
    override val ctx get() = ProcessorUtils.SimpleContext(logPrefix, super.processingEnv)

    /**
     * Returns the directory where generated Kotlin sources should be placed in order to be compiled.
     *
     * If `null`, then this processor is probably not being run through kapt.
     */
    val generatedDir: File? get() = options[KAPT_KOTLIN_GENERATED_OPTION]?.let(::File)
}