Use exported filterModelPropertiesInPlace from utils (#5756)

Author: steverice

.chronus/changes/steverice-dry-filter-2025-0-26-1-0-45.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/compiler"
+---
+
+Use exported `filterModelPropertiesInPlace` from `utils` in `decorators.ts`

.github/workflows/consistency.yml

@@ -24,7 +24,7 @@ jobs:
 
       - uses: ./.github/actions/setup
 
-      - run: git pull --force --no-tags origin ${{ github.event.pull_request.base.ref }}:${{ github.event.pull_request.base.ref }}
+      - run: git fetch --force --no-tags origin ${{ github.event.pull_request.base.ref }}:${{ github.event.pull_request.base.ref }}
         name: Get ${{ github.event.pull_request.base.ref }} ref for ${{ github.ref}}, evt ${{ github.event_name }}
 
       - run: pnpm install

packages/compiler/src/lib/decorators.ts

@@ -100,7 +100,7 @@ import {
 } from "../core/types.js";
 import { useStateMap, useStateSet } from "../utils/index.js";
 import { setKey } from "./key.js";
-import { createStateSymbol } from "./utils.js";
+import { createStateSymbol, filterModelPropertiesInPlace } from "./utils.js";
 
 export { $encodedName, resolveEncodedName } from "./encoded-names.js";
 export { serializeValueAsJson } from "./examples.js";
@@ -811,17 +811,6 @@ function validateEncodeData(context: DecoratorContext, target: Type, encodeData:
 
 export { getEncode };
 
-export function filterModelPropertiesInPlace(
-  model: Model,
-  filter: (prop: ModelProperty) => boolean,
-) {
-  for (const [key, prop] of model.properties) {
-    if (!filter(prop)) {
-      model.properties.delete(key);
-    }
-  }
-}
-
 // -- @withOptionalProperties decorator ---------------------
 
 export const $withOptionalProperties: WithOptionalPropertiesDecorator = (