Morfly

class FunctionProcessor(...) : SymbolProcessor {

    override fun process(resolver: Resolver): List<KSAnnotated> {
        val symbols = resolver
            .getSymbolsWithAnnotation("com.morfly.Function")
            .filterIsInstance<KSClassDeclaration>()

        if (!symbols.iterator().hasNext()) return emptyList()

        val file: OutputStream = codeGenerator.createNewFile(

Morfly

@Function(name = "myAmazingFunction")
interface MyAmazingFunction {
    val arg1: String
    val arg2: Map<String, List<*>>
}

Morfly

fun myAmazingFunction(
    arg1: String,
    arg2: Map<String, List<*>>
) {
    println("Hello from myAmazingFunction")
}

Morfly

// annotations/build.gradle.kts

plugins {
    kotlin("jvm")
}

Morfly

// processor/build.gradle.kts

plugins {
    kotlin("jvm")
}

dependencies {
    implementation(project(":annotations"))
    implementation("com.google.devtools.ksp:symbol-processing-api:1.6.20-1.0.5")
}

Morfly

// main-project/build.gradle.kts

plugins {
    kotlin("jvm")
    id("com.google.devtools.ksp")
}

dependencies {
    implementation(project(":annotations"))
    ksp(project(":processor"))

Morfly

// settings.gradle.kts

pluginManagement {
    plugins {
        id("com.google.devtools.ksp") version "1.6.20-1.0.5"
        kotlin("jvm") version "1.6.20"
    }
    repositories {
        gradlePluginPortal()
        google()

Morfly

package com.morfly

class FunctionProcessor(
    private val codeGenerator: CodeGenerator,
    private val logger: KSPLogger,
    private val options: Map<String, String>
): SymbolProcessor {
  
    override fun process(resolver: Resolver): List<KSAnnotated> {
        // leave it blank for now

Morfly

package com.morfly

class FunctionProcessorProvider : SymbolProcessorProvider {

    override fun create(environment: SymbolProcessorEnvironment): SymbolProcessor {
        return FunctionProcessor(
            codeGenerator = environment.codeGenerator,
            logger = environment.logger,
            options = environment.options
        )

Morfly

package com.morfly

@Target(AnnotationTarget.CLASS)
annotation class Function(val name: String)