fix(classes.doc): Avoid emitting instance fields for collection and manager to preserve decorator-defined prototype getters

changelog.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 2025-12-01 - 7.0.15 - fix(classes.doc)
+Avoid emitting instance fields for collection and manager to preserve decorator-defined prototype getters
+
+- ts/classes.doc.ts: changed instance properties `collection` and `manager` to `declare` so TypeScript does not emit them as own properties — prevents ES2022 class fields from shadowing prototype getters created by @Collection and @managed decorators.
+- readme.hints.md: added documentation explaining the ES2022 class fields issue and recommending use of `declare` for type-only instance properties; marks the fix as v7.0.15.
+
 ## 2025-11-28 - 7.0.14 - fix(classes.collection)
 Centralize TC39 decorator metadata initialization and use context.metadata in class decorators
 

readme.hints.md

@@ -78,3 +78,21 @@ All 157 tests passing across 10 test files:
 3. `Symbol.metadata` on constructors is read-only (managed by runtime)
 4. Field decorators run before class decorators (guaranteed order)
 5. TypeScript 5.2+ has built-in TC39 decorator support
+
+## ES2022 Class Fields & Prototype Getters - Fixed in v7.0.15
+
+### Issue
+ES2022 class fields (`useDefineForClassFields: true`) create own properties during construction that shadow prototype getters defined by decorators.
+
+### Solution
+Use `declare` keyword for instance properties that are accessed via prototype getters:
+```typescript
+// In SmartDataDbDoc (ts/classes.doc.ts):
+declare public collection: SmartdataCollection<any>;  // Type-only, no JS emitted
+declare public manager: TManager;  // Type-only, no JS emitted
+```
+
+### Key Insight
+- `declare` tells TypeScript this is a type-only declaration
+- No JavaScript code is emitted for `declare` properties
+- Prototype getters defined by `@Collection` and `@managed` decorators are no longer shadowed

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartdata',
-  version: '7.0.14',
+  version: '7.0.15',
   description: 'An advanced library for NoSQL data organization and manipulation using TypeScript with support for MongoDB, data validation, collections, and custom data types.'
 }

ts/classes.doc.ts

@@ -436,10 +436,10 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
    * the collection object an Doc belongs to
    */
   public static collection: SmartdataCollection<any>;
-  public collection: SmartdataCollection<any>;
+  declare public collection: SmartdataCollection<any>;
   public static defaultManager;
   public static manager;
-  public manager: TManager;
+  declare public manager: TManager;
 
   /**
    * Helper to get collection with fallback to static for Deno compatibility