fix(namespaces): fix duplicates in mixed fields visitor

Author: char0n

apidom/packages/@types/minim.d.ts

@@ -112,6 +112,8 @@ declare module 'minim' {
   export class ObjectElement extends ArrayElement {
     constructor(content?: Record<string, unknown>, meta?: Meta, attributes?: Attributes);
 
+    remove(name: string): Element;
+
     set(key: string | StringElement | number, value: any): ObjectElement;
 
     hasKey(value: string): boolean;
@@ -128,6 +130,8 @@ declare module 'minim' {
       callback: (value: Element, key: Element, member: MemberElement) => MemberElement,
       thisArg?: unknown,
     ): Array<MemberElement>;
+
+    keys(): unknown[];
   }
 
   export class MemberElement extends Element {

apidom/packages/apidom-ns-asyncapi-2-0/src/refractor/visitors/generics/MixedFieldsVisitor.ts

@@ -1,4 +1,5 @@
 import stampit from 'stampit';
+import { difference } from 'ramda';
 import { noop } from 'ramda-adjunct';
 import { ObjectElement, BREAK } from 'apidom';
 
@@ -12,14 +13,18 @@ const MixedFieldsVisitor = stampit(FixedFieldsVisitor, PatternedFieldsVisitor, {
   },
   methods: {
     ObjectElement(objectElement: ObjectElement) {
-      const { specPath } = this;
+      const { specPath, ignoredFields } = this;
 
       try {
         this.specPath = this.specPathFixedFields;
+        const fixedFields = this.retrieveFixedFields(this.specPath(objectElement));
+        // let FixedFieldsVisitor only process fixed fields and leave rest to PatternedFieldsVisitor
+        this.ignoredFields = [...ignoredFields, ...difference(objectElement.keys(), fixedFields)];
         // @ts-ignore
         FixedFieldsVisitor.compose.methods.ObjectElement.call(this, objectElement);
 
         this.specPath = this.specPathPatternedFields;
+        this.ignoredFields = ignoredFields;
         // @ts-ignore
         PatternedFieldsVisitor.compose.methods.ObjectElement.call(this, objectElement);
       } catch (e) {

apidom/packages/apidom-ns-openapi-3-1/src/refractor/visitors/generics/MixedFieldsVisitor.ts

@@ -1,4 +1,5 @@
 import stampit from 'stampit';
+import { difference } from 'ramda';
 import { noop } from 'ramda-adjunct';
 import { ObjectElement, BREAK } from 'apidom';
 
@@ -12,14 +13,18 @@ const MixedFieldsVisitor = stampit(FixedFieldsVisitor, PatternedFieldsVisitor, {
   },
   methods: {
     ObjectElement(objectElement: ObjectElement) {
-      const { specPath } = this;
+      const { specPath, ignoredFields } = this;
 
       try {
         this.specPath = this.specPathFixedFields;
+        const fixedFields = this.retrieveFixedFields(this.specPath(objectElement));
+        // let FixedFieldsVisitor only process fixed fields and leave rest to PatternedFieldsVisitor
+        this.ignoredFields = [...ignoredFields, ...difference(objectElement.keys(), fixedFields)];
         // @ts-ignore
         FixedFieldsVisitor.compose.methods.ObjectElement.call(this, objectElement);
 
         this.specPath = this.specPathPatternedFields;
+        this.ignoredFields = ignoredFields;
         // @ts-ignore
         PatternedFieldsVisitor.compose.methods.ObjectElement.call(this, objectElement);
       } catch (e) {