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• nussknacker-scenario-compiler_2.12
• 1.18.0-RC2
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• ClassDefinition.scala

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pl.touk.nussknacker.engine.definition.clazz.ClassDefinition.scala Maven / Gradle / Ivy

package pl.touk.nussknacker.engine.definition.clazz

import cats.data.NonEmptyList
import pl.touk.nussknacker.engine.api.typed.typing.{Typed, TypedClass, TypingResult, Unknown}

case class ClassDefinition(
    clazzName: TypingResult,
    methods: Map[String, List[MethodDefinition]],
    staticMethods: Map[String, List[MethodDefinition]]
) {

  def getClazz: Class[_] = clazzName match {
    case TypedClass(klass, _) => klass
    case Unknown              => AnyClass
    case typingResult =>
      throw new IllegalAccessException(
        s"$typingResult not supported. Class and Unknown are only valid inputs for fragment."
      )
  }

  private def asProperty(methodDefinition: MethodDefinition, invocationTarget: TypingResult): Option[TypingResult] =
    methodDefinition.computeResultType(invocationTarget, List.empty).toOption

  private val AnyClass: Class[Any] = classOf[Any]

  def getPropertyOrFieldType(invocationTarget: TypingResult, methodName: String): Option[TypingResult] = {
    def filterMethods(candidates: Map[String, List[MethodDefinition]]): List[TypingResult] =
      candidates.get(methodName).toList.flatMap(_.map(asProperty(_, invocationTarget))).collect { case Some(x) => x }
    val filteredMethods       = filterMethods(methods)
    val filteredStaticMethods = filterMethods(staticMethods)
    val filtered              = filteredMethods ++ filteredStaticMethods
    NonEmptyList.fromList(filtered).map(Typed(_))
  }

}