Fix a bug accessing null

js/Blueprint.js

@@ -227,7 +227,7 @@ export default class Blueprint extends IElement {
     }
 
     /**
-     * @param {Number} x - Horizontal 
+     * @param {Number} x - Horizontal
      * @param {Number} y - Vertical expand value (negative means top, positive means bottom)
      * @param {Number} factor - Either 1 (expand) or -1 (shrink)
      */
@@ -343,9 +343,8 @@ export default class Blueprint extends IElement {
     }
 
     /**
-     * @param {PinElement} sourcePin 
-     * @param {PinElement} destinationPin 
-     * @returns 
+     * @param {PinElement} sourcePin
+     * @param {PinElement} destinationPin
      */
     getLink(sourcePin, destinationPin, ignoreDirection = false) {
         return this.links.find(link =>

js/Configuration.js

@@ -19,7 +19,7 @@ export default class Configuration {
     static gridLineWidth = 1 // pixel
     static gridSet = 8
     static gridSetLineColor = "#161616"
-    static gridShrinkThreshold = 4 // exceding size factor threshold to cause a shrink event 
+    static gridShrinkThreshold = 4 // exceding size factor threshold to cause a shrink event
     static gridSize = 16 // pixel
     static keysSeparator = "+"
     static linkCurveHeight = 15 // pixel

js/element/ISelectableDraggableElement.js

@@ -6,7 +6,7 @@ import Utility from "../Utility"
 
 /**
  * @typedef {import("../template/SelectableDraggableTemplate").default} SelectableDraggableTemplate
- * @typedef {import("../entity/IEntity").default} IEntity  
+ * @typedef {import("../entity/IEntity").default} IEntity
  */
 
 /**
@@ -45,7 +45,7 @@ export default class ISelectableDraggableElement extends IElement {
     }
 
     /**
-     * @param {Number[]} value 
+     * @param {Number[]} value
      */
     setLocation(value = [0, 0]) {
         const d = [value[0] - this.location[0], value[1] - this.location[1]]

js/element/PinElement.js

@@ -150,7 +150,6 @@ export default class PinElement extends IElement {
     }
 
     /**
-     * 
      * @param {PinElement} originalPinElement
      * @param {PinReferenceEntity} newReference
      */

js/entity/ObjectEntity.js

@@ -37,18 +37,18 @@ export default class ObjectEntity extends IEntity {
         super(options)
         /** @type {ObjectReferenceEntity} */ this.Class
         /** @type {String} */ this.Name
-        /** @type {Boolean} */ this.bIsPureFunc
-        /** @type {VariableReferenceEntity} */ this.VariableReference
-        /** @type {FunctionReferenceEntity} */ this.FunctionReference
-        /** @type {FunctionReferenceEntity} */ this.EventReference
-        /** @type {ObjectReferenceEntity} */ this.TargetType
+        /** @type {Boolean?} */ this.bIsPureFunc
+        /** @type {VariableReferenceEntity?} */ this.VariableReference
+        /** @type {FunctionReferenceEntity?} */ this.FunctionReference
+        /** @type {FunctionReferenceEntity?} */ this.EventReference
+        /** @type {ObjectReferenceEntity?} */ this.TargetType
         /** @type {IntegerEntity} */ this.NodePosX
         /** @type {IntegerEntity} */ this.NodePosY
-        /** @type {IdentifierEntity} */ this.AdvancedPinDisplay
-        /** @type {IdentifierEntity} */ this.EnabledState
+        /** @type {IdentifierEntity?} */ this.AdvancedPinDisplay
+        /** @type {IdentifierEntity?} */ this.EnabledState
         /** @type {GuidEntity} */ this.NodeGuid
-        /** @type {IntegerEntity} */ this.ErrorType
-        /** @type {String} */ this.ErrorMsg
+        /** @type {IntegerEntity?} */ this.ErrorType
+        /** @type {String?} */ this.ErrorMsg
         /** @type {PinEntity[]} */ this.CustomProperties
     }
 

js/entity/PinEntity.js

@@ -87,10 +87,6 @@ export default class PinEntity extends IEntity {
         return !this.bHidden && this.Direction == "EGPD_Output"
     }
 
-    /**
-     * 
-     * @returns {Boolean}
-     */
     isLinked() {
         return this.LinkedTo?.length > 0 ?? false
     }

js/serialization/Grammar.js

@@ -86,7 +86,7 @@ export default class Grammar {
 
     /**
      * @template T
-     * @param {new (values: Object) => T} entityType 
+     * @param {new (values: Object) => T} entityType
      * @returns {Parsimmon.Parser<T>}
      */
     static createMultiAttributeGrammar = (r, entityType) =>

js/serialization/initializeSerializerFactory.js

@@ -27,7 +27,7 @@ export default function initializeSerializerFactory() {
     )
 
     SerializerFactory.registerSerializer(
-        PinEntity, 
+        PinEntity,
         new PinSerializer()
     )
 

js/template/BlueprintTemplate.js

@@ -183,7 +183,6 @@ export default class BlueprintTemplate extends ITemplate {
     }
 
     /**
-     * 
      * @param {Blueprint} blueprint
      * @param {PinReferenceEntity} pinReference
      * @returns {PinElement}

js/template/NodeTemplate.js

@@ -34,7 +34,7 @@ export default class NodeTemplate extends SelectableDraggableTemplate {
                         <div class="ueb-node-inputs"></div>
                         <div class="ueb-node-outputs"></div>
                     </div>
-                    ${node.entity.EnabledState.toString() == "DevelopmentOnly" ? html`
+                    ${node.entity.EnabledState?.toString() == "DevelopmentOnly" ? html`
                         <div class="ueb-node-developmentonly">Development Only</div>
                     ` : ""}
                     ${node.entity.AdvancedPinDisplay ? html`