adibfara

/**
 * @author Adib Faramarzi (adibfara@gmail.com)
 */

fun createOnce(runFunction: ()-> Unit) {
    runFunction()
}

fun getKotlinVersion(): Float{
    val kotlinVersion: Float

adibfara

// add kotlin gradle plugin (v1.3 and above)

buildscript {
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3"
    }
}

adibfara

import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.contract

/**
 * @author Adib Faramarzi (adibfara@gmail.com)
 */

@ExperimentalContracts
fun createOnce(runFunction: ()-> Unit) {
    contract {

adibfara

/**
 * @author Adib Faramarzi (adibfara@gmail.com)
 */
fun Any?.isAValidName():Boolean{
    return this!=null && this is String && this.length > 3
}

fun getName():String? { ... }

fun testUserName(){

adibfara

// to help the IDE recognize the KSP generated files, add the following to your app's build.gradle
android {
    kotlin {
        sourceSets.debug {
            kotlin.srcDirs += 'build/generated/ksp/debug/kotlin'
        }
        sourceSets.release {
            kotlin.srcDirs += 'build/generated/ksp/release/kotlin'
        }
    }

adibfara

@Target(AnnotationTarget.FUNCTION)
@Retention(AnnotationRetention.SOURCE)
annotation class Listed(
    val name: String,
)

adibfara

import com.google.devtools.ksp.processing.Resolver
import com.google.devtools.ksp.processing.SymbolProcessor
import com.google.devtools.ksp.processing.SymbolProcessorEnvironment
import com.google.devtools.ksp.symbol.KSAnnotated

class ListedProcessor(private val environment: SymbolProcessorEnvironment): SymbolProcessor {
    override fun process(resolver: Resolver): List<KSAnnotated> {
        return emptyList() // we'll return an empty list for now, since we haven't processed anything.
    }
}

adibfara

// Create the directories: yourmodule/src/main/resources/META-INF/services/
// Create a file named com.google.devtools.ksp.processing.SymbolProcessorProvider
// Inside the file, add the following line (and nothing more):
com.snaky.ksp.processor.provider.ListedProcessorProvider

// For a reference, you can check out here:
// https://github.com/adibfara/ListGen/blob/main/ksp/src/main/resources/META-INF/services/com.google.devtools.ksp.processing.SymbolProcessorProvider

adibfara

 // Inside your app's module, declare a dependency to your ksp module
 dependencies {
   implementation project(":ksp") // since you want to use your @Listed annotation
   ksp project(":ksp") // to make KSP work
 }

adibfara

internal class ListedProcessor(
    private val environment: SymbolProcessorEnvironment,
) : SymbolProcessor {

    private fun Resolver.findAnnotations(
        kClass: KClass<*>,
    ) = getSymbolsWithAnnotation(
        kClass.qualifiedName.toString())
        .filterIsInstance<KSFunctionDeclaration>().filter {
            it.parameters.isEmpty()