Avoid stack overflow when initializing field with self mutations (#2566)

Avoid stack overflow when initialising field with self mutations

Author: IlyaMuravjov

utbot-framework/src/main/kotlin/org/utbot/framework/codegen/tree/fieldmanager/ClassFieldManagerFacade.kt

@@ -9,11 +9,14 @@ import org.utbot.framework.plugin.api.UtSpringContextModel
 
 class ClassFieldManagerFacade(context: CgContext) : CgContextOwner by context {
 
+    private val alreadyInitializedModels = mutableSetOf<UtModelWrapper>()
+
     fun constructVariableForField(model: UtModel): CgValue? {
         relevantFieldManagers.forEach { manager ->
             val alreadyCreatedVariable = manager.findCgValueByModel(model, manager.annotatedModels)
             if (alreadyCreatedVariable != null) {
-                manager.useVariableForModel(model, alreadyCreatedVariable)
+                if (alreadyInitializedModels.add(model.wrap()))
+                    manager.useVariableForModel(model, alreadyCreatedVariable)
                 return alreadyCreatedVariable
             }
         }