Entities semplification

* Entities semplification WIP

* Bug fixes after entity semplification

* Fix object serialization

js/serialization/Grammar.js

@@ -175,6 +175,7 @@ export default class Grammar {
                 )
         } else if (type instanceof MirroredEntity) {
             return this.grammarFor(type.type.attributes[type.key])
+                .map(() => new MirroredEntity(type.type, type.key, type.getter))
         } else if (attribute?.constructor === Object) {
             result = this.grammarFor(undefined, type)
         } else {
@@ -454,9 +455,7 @@ export default class Grammar {
     static naturalNumberEntity = P.lazy(() => this.naturalNumber.map(v => new NaturalNumberEntity(v)))
 
     static noneReferenceEntity = P.lazy(() =>
-        P.string("None").map(() =>
-            new ObjectReferenceEntity({ type: "None", path: "" })
-        )
+        P.string("None").map(() => ObjectReferenceEntity.createNoneInstance())
     )
 
     static typeReferenceEntity = P.lazy(() =>

js/serialization/ObjectSerializer.js

@@ -77,7 +77,7 @@ export default class ObjectSerializer extends Serializer {
             )
         }
         let result = indentation + "Begin Object"
-            + (entity.Class.type || entity.Class.path ? ` Class=${this.doWriteValue(entity.Class, insideString)}` : "")
+            + (entity.Class?.type || entity.Class?.path ? ` Class=${this.doWriteValue(entity.Class, insideString)}` : "")
             + (entity.Name ? ` Name=${this.doWriteValue(entity.Name, insideString)}` : "")
             + "\n"
             + super.doWrite(

js/serialization/Serializer.js

@@ -82,10 +82,7 @@ export default class Serializer {
     ) {
         let result = ""
         const attributes = IEntity.getAttributes(entity)
-        const keys = Utility.mergeArrays(
-            Object.keys(attributes),
-            Object.keys(entity)
-        )
+        const keys = Object.keys(entity)
         let first = true
         for (const key of keys) {
             const value = entity[key]
@@ -147,14 +144,9 @@ export default class Serializer {
     }
 
     showProperty(entity, key) {
-        const attributes = /** @type {EntityConstructor} */(this.entityType).attributes
-        const attribute = attributes[key]
-        const value = entity[key]
-        if (attribute?.constructor === Object) {
-            if (attribute.ignored) {
-                return false
-            }
-            return !Utility.equals(attribute.default, value) || attribute.showDefault
+        const attribute = /** @type {EntityConstructor} */(this.entityType).attributes[key]
+        if (attribute?.constructor === Object && attribute.ignored) {
+            return false
         }
         return true
     }