Revert not instantiable class to not abstract with internal constructor (utopia-rise#876)

Author: CedNaru

kt/api-generator/src/main/kotlin/godot/codegen/generation/rule/ClassRule.kt

@@ -60,9 +60,17 @@ class MemberRule : GodotApiRule<EnrichedClassTask>() {
  } else {
  if (clazz.isAbstract) {
  addModifiers(KModifier.ABSTRACT)
+ } else if (!clazz.isInstantiable){
+ primaryConstructor(
+ FunSpec.constructorBuilder()
+ .addModifiers(KModifier.INTERNAL)
+ .build()
+ ).build()
+ addModifiers(KModifier.OPEN)
  } else {
  addModifiers(KModifier.OPEN)
  }
+
  generateClassConstructor(context)
  }
 

kt/api-generator/src/main/kotlin/godot/codegen/models/enriched/EnrichedClass.kt

@@ -30,7 +30,8 @@ class EnrichedClass(model: Class) : TypeGenerationTrait, DocumentedGenerationTra
  val properties = model.properties?.toEnriched() ?: listOf()
  val methods = model.methods?.toEnriched() ?: listOf()
 
- val isAbstract = methods.any { it.isAbstract } || !model.isInstantiable
+ val isAbstract = methods.any { it.isAbstract }
+ val isInstantiable = model.isInstantiable
 
  override var description = model.description
  val additionalImports = mutableSetOf<ClassName>()

kt/godot-library/godot-api-library/src/main/kotlin/godot/RegisterEngineTypes.kt

@@ -53,7 +53,7 @@ import kotlin.jvm.JvmOverloads
  * processed by the [AnimationMixer].
  */
 @GodotBaseType
-public abstract class AnimationMixer : Node() {
+public open class AnimationMixer internal constructor() : Node() {
  /**
  * Notifies when an animation list is changed.
  */

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AnimationMixer.kt

@@ -29,7 +29,8 @@ import kotlin.jvm.JvmOverloads
  * An instance of this class can be obtained with [AudioServer.getBusEffectInstance].
  */
 @GodotBaseType
-public abstract class AudioEffectSpectrumAnalyzerInstance : AudioEffectInstance() {
+public open class AudioEffectSpectrumAnalyzerInstance internal constructor() : AudioEffectInstance()
+ {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(74, scriptIndex)
  }

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AudioEffectSpectrumAnalyzerInstance.kt

@@ -30,7 +30,8 @@ import kotlin.Unit
  * real-time.
  */
 @GodotBaseType
-public abstract class AudioStreamGeneratorPlayback : AudioStreamPlaybackResampled() {
+public open class AudioStreamGeneratorPlayback internal constructor() :
+ AudioStreamPlaybackResampled() {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(83, scriptIndex)
  }

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AudioStreamGeneratorPlayback.kt

@@ -26,7 +26,7 @@ import kotlin.Unit
  * clip.
  */
 @GodotBaseType
-public abstract class AudioStreamPlaybackInteractive : AudioStreamPlayback() {
+public open class AudioStreamPlaybackInteractive internal constructor() : AudioStreamPlayback() {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(89, scriptIndex)
  }

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AudioStreamPlaybackInteractive.kt

@@ -12,7 +12,7 @@ import kotlin.Suppress
 import kotlin.Unit
 
 @GodotBaseType
-public abstract class AudioStreamPlaybackPlaylist : AudioStreamPlayback() {
+public open class AudioStreamPlaybackPlaylist internal constructor() : AudioStreamPlayback() {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(91, scriptIndex)
  }

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AudioStreamPlaybackPlaylist.kt

@@ -34,7 +34,7 @@ import kotlin.jvm.JvmOverloads
  * or [AudioStreamPlayer3D.getStreamPlayback] methods.
  */
 @GodotBaseType
-public abstract class AudioStreamPlaybackPolyphonic : AudioStreamPlayback() {
+public open class AudioStreamPlaybackPolyphonic internal constructor() : AudioStreamPlayback() {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(92, scriptIndex)
  }

kt/godot-library/godot-api-library/src/main/kotlin/godot/api/AudioStreamPlaybackPolyphonic.kt

@@ -12,7 +12,7 @@ import kotlin.Suppress
 import kotlin.Unit
 
 @GodotBaseType
-public abstract class AudioStreamPlaybackSynchronized : AudioStreamPlayback() {
+public open class AudioStreamPlaybackSynchronized internal constructor() : AudioStreamPlayback() {
  public override fun new(scriptIndex: Int): Unit {
  createNativeObject(94, scriptIndex)
  }