KSP function processor, process function

FunctionProcessor.kt

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()
    }
}