[v3.8.6] Optimize code size by defining Constructor explicitly.

cocos/2d/assembler/label/font-utils.ts

@@ -45,6 +45,9 @@ export class CanvasPool {
         }
         return _canvasPool;
     }
+
+    private constructor () {}
+
     public pool: ISharedLabelData[] = [];
     public get (): ISharedLabelData {
         let data = this.pool.pop();

cocos/2d/assets/font.ts

@@ -33,6 +33,9 @@ import { cclegacy } from '../../core';
  */
 @ccclass('cc.Font')
 export class Font extends Asset {
+    constructor (name?: string) {
+        super(name);
+    }
 }
 
 cclegacy.Font = Font;

cocos/2d/assets/sprite-atlas.ts

@@ -55,8 +55,8 @@ export class SpriteAtlas extends Asset {
     @editable
     public spriteFrames: ISpriteFrameList = js.createMap();
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/2d/assets/sprite-frame.ts

@@ -643,8 +643,8 @@ export class SpriteFrame extends Asset {
     protected _minPos = v3();
     protected _maxPos = v3();
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
 
         if (EDITOR) {
             // Atlas asset uuid

cocos/3d/assets/mesh.ts

@@ -380,8 +380,8 @@ export class Mesh extends Asset {
 
     private _jointBufferIndices: number[] | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/3d/assets/skeleton.ts

@@ -44,8 +44,8 @@ export class Skeleton extends Asset {
 
     private _invBindposes: Mat4[] | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/3d/misc/buffer-blob.ts

@@ -26,6 +26,8 @@ export class BufferBlob {
     private _arrayBufferOrPaddings: Array<ArrayBuffer | number> = [];
     private _length = 0;
 
+    constructor () {}
+
     public setNextAlignment (align: number): void {
         if (align !== 0) {
             const remainder = this._length % align;

cocos/animation/animation-clip.ts

@@ -155,6 +155,10 @@ export class AnimationClip extends Asset {
     @serializable
     public enableTrsBlending = false;
 
+    constructor (name?: string) {
+        super(name);
+    }
+
     /**
      * @zh 动画的周期。
      * @en Animation duration.

cocos/asset/asset-manager/builtin-res-mgr.ts

@@ -40,6 +40,8 @@ export class BuiltinResMgr {
     protected _resources: Record<string, Asset> = {};
     protected _materialsToBeCompiled: Material[] = [];
 
+    constructor () {}
+
     // this should be called after renderer initialized
     public init (): void {
         const resources = this._resources;

cocos/asset/asset-manager/bundle.ts

@@ -44,6 +44,8 @@ import type { AssetManager } from './asset-manager';
 export default class Bundle {
     private _config: Config = new Config();
 
+    constructor () {}
+
     /**
      * For internal use.
      * @engineInternal

cocos/asset/asset-manager/factory.ts

@@ -37,9 +37,9 @@
 import { cache } from './utilities';
 import { js } from '../../core';
 
 export type CreateHandler = (id: string, data: any, options: Record<string, any>, onComplete: ((err: Error | null, data?: Asset | Bundle | null) => void)) => void;
 
 function createImageAsset (id: string, data: HTMLImageElement, options: Record<string, any>, onComplete: ((err: Error | null, data?: ImageAsset | null) => void)): void {
     let out: ImageAsset | null = null;
     let err: Error | null = null;
     try {
@@ -52,19 +52,19 @@
     onComplete(err, out);
 }
 
 function createJsonAsset (id: string, data: Record<string, any>, options: Record<string, any>, onComplete: ((err: Error | null, data?: JsonAsset | null) => void)): void {
     const out = new JsonAsset();
     out.json = data;
     onComplete(null, out);
 }
 
 function createTextAsset (id: string, data: string, options: Record<string, any>, onComplete: ((err: Error | null, data?: TextAsset | null) => void)): void {
     const out = new TextAsset();
     out.text = data;
     onComplete(null, out);
 }
 
 function createBufferAsset (id: string, data: ArrayBufferView, options: Record<string, any>, onComplete: ((err: Error | null, data?: BufferAsset | null) => void)): void {
     const out = new BufferAsset();
     out._nativeUrl = id;
     out._nativeAsset = data;
@@ -78,7 +78,7 @@
     onComplete(null, out);
 }
 
 function createBundle (id: string, data: IConfigOption, options: Record<string, any>, onComplete: ((err: Error | null, data?: Bundle | null) => void)): void {
     let bundle = bundles.get(data.name);
     if (!bundle) {
         bundle = data.name === BuiltinBundleName.RESOURCES ? resources : new Bundle();
@@ -96,7 +96,7 @@
 }
 
 export class Factory {
     private _creating = new Cache<((err: Error | null, data?: any | null) => void)[]>();
 
     private _producers: Record<string, CreateHandler> = {
         // Images
@@ -136,9 +136,10 @@
         bundle: createBundle,
 
         default: createAsset,
-
     };
 
+    constructor () {}
+
     public register (type: string | Record<string, CreateHandler>, handler?: CreateHandler): void {
         if (typeof type === 'object') {
             js.mixin(this._producers, type);
@@ -147,7 +148,7 @@
         }
     }
 
     public create (id: string, data: any, type: string, options: Record<string, any>, onComplete: ((err: Error | null, data?: Asset | Bundle | null) => void)): void {
         const handler = this._producers[type] || this._producers.default;
         const asset = assets.get(id);
         if (!options.reloadAsset && asset) {
@@ -164,7 +165,7 @@
         handler(id, data, options, (err, result): void => {
             if (!err && result instanceof Asset) {
                 result._uuid = id;
                 cache(id, result, options.cacheAsset);
             }
             const callbacks = this._creating.remove(id);
             for (let i = 0, l = callbacks!.length; i < l; i++) {

cocos/asset/assets/asset.ts

@@ -187,7 +187,7 @@ export class Asset extends Eventify(CCObject) {
         return this._file;
     }
 
-    constructor (name = '') {
+    constructor (name?: string) {
         super(name);
 
         Object.defineProperty(this, '_uuid', {

cocos/asset/assets/buffer-asset.ts

@@ -37,8 +37,8 @@ import { Asset } from './asset';
 export class BufferAsset extends Asset {
     private _buffer: ArrayBuffer | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/effect-asset.ts

@@ -325,8 +325,8 @@ export class EffectAsset extends Asset {
     @editorOnly
     public hideInEditor = false;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/json-asset.ts

@@ -41,8 +41,8 @@ export default class JsonAsset extends Asset {
     @editable
     public json: Record<string, any> | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 }
 

cocos/asset/assets/material.ts

@@ -139,8 +139,8 @@ export class Material extends Asset {
      */
     protected _hash = 0;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/render-texture.ts

@@ -61,8 +61,8 @@ const _windowInfo: IRenderWindowInfo = {
 @ccclass('cc.RenderTexture')
 export class RenderTexture extends TextureBase {
     private _window: RenderWindow | null = null;
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/scene-asset.ts

@@ -43,8 +43,8 @@ export class SceneAsset extends Asset {
     @serializable
     public scene: Scene | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     public initDefault (uuid?: string): void {

cocos/asset/assets/scripts.ts

@@ -33,6 +33,9 @@ import { cclegacy } from '../../core';
  */
 @ccclass('cc.Script')
 export class Script extends Asset {
+    constructor (name?: string) {
+        super(name);
+    }
 }
 cclegacy._Script = Script;
 
@@ -42,6 +45,9 @@ cclegacy._Script = Script;
  */
 @ccclass('cc.JavaScript')
 export class JavaScript extends Script {
+    constructor (name?: string) {
+        super(name);
+    }
 }
 cclegacy._JavaScript = JavaScript;
 
@@ -51,5 +57,8 @@ cclegacy._JavaScript = JavaScript;
  */
 @ccclass('cc.TypeScript')
 export class TypeScript extends Script {
+    constructor (name?: string) {
+        super(name);
+    }
 }
 cclegacy._TypeScript = TypeScript;

cocos/asset/assets/simple-texture.ts

@@ -81,8 +81,8 @@ export class SimpleTexture extends TextureBase {
      */
     protected _maxLevel = 1000;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/text-asset.ts

@@ -45,8 +45,8 @@ export class TextAsset extends Asset {
         return this.text;
     }
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 }
 

cocos/asset/assets/texture-2d.ts

@@ -83,8 +83,8 @@ export interface ITexture2DCreateInfo {
  */
 @ccclass('cc.Texture2D')
 export class Texture2D extends SimpleTexture {
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/asset/assets/texture-base.ts

@@ -147,8 +147,8 @@ export class TextureBase extends Asset {
 
     private _textureHash = 0;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
 
         // Id for generate hash in material
         this._id = idGenerator.getNewId();

cocos/asset/assets/texture-cube.ts

@@ -128,8 +128,8 @@ export class TextureCube extends SimpleTexture {
     @serializable
     _mipmapMode = MipmapMode.NONE;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     /**

cocos/audio/audio-clip.ts

@@ -60,8 +60,8 @@ export class AudioClip extends Asset {
 
     private _player: AudioPlayer | null = null;
 
-    constructor () {
-        super();
+    constructor (name?: string) {
+        super(name);
     }
 
     public destroy (): boolean {

cocos/core/data/garbage-collection.ts

@@ -31,9 +31,11 @@
 const targetSymbol = Symbol('[[target]]');
 
 class GarbageCollectionManager {
     private _finalizationRegistry: FinalizationRegistry | null = EDITOR && typeof FinalizationRegistry !== 'undefined' ? new FinalizationRegistry(this.finalizationRegistryCallback.bind(this)) : null;
     private _gcObjects: WeakMap<any, GCObject> = new WeakMap();
 
+    constructor () {}
+
     public registerGCObject (gcObject: GCObject): GCObject {
         if (EDITOR && this._finalizationRegistry) {
             const token = {};

cocos/core/event/callbacks-invoker.ts

@@ -38,6 +38,8 @@ class CallbackInfo {
     public target: unknown = undefined;
     public once = false;
 
+    constructor () {}
+
     public set (callback: AnyFunction, target?: unknown, once?: boolean): void {
         this.callback = callback || empty;
         this.target = target;
@@ -70,6 +72,8 @@ export class CallbackList {
     public isInvoking = false;
     public containCanceled = false;
 
+    constructor () {}
+
     /**
      * @zh 从列表中移除与指定目标相同回调函数的事件。
      * @en Remove the event listeners with the given callback from the list
@@ -186,6 +190,8 @@ export class CallbacksInvoker<EventTypeClass extends EventType = EventType> {
     public _callbackTable: ICallbackTable = createMap(true);
     private _offCallback?: () => void;
 
+    constructor () {}
+
     /**
      * @zh 向一个事件名注册一个新的事件监听器，包含回调函数和调用者
      * @en Register an event listener to a given event key with callback and target.

cocos/core/memop/scalable-container.ts

@@ -51,6 +51,8 @@ class ScalableContainerManager {
      */
     public shrinkTimeSpan = 5;
 
+    constructor () {}
+
     /**
      * @en Add a ScalableContainer. Will add the same ScalableContainer instance once.
      * @param pool @en The ScalableContainer to add.

cocos/core/settings.ts

@@ -61,6 +61,8 @@ export enum SettingsCategory {
 export class Settings {
     static Category = SettingsCategory;
 
+    constructor () {}
+
     /**
      * Initialization
      * @internal

cocos/core/value-types/value-type.ts

@@ -32,6 +32,7 @@ import { legacyCC } from '../global-exports';
  * @zh 所有值类型的基类。
  */
 export class ValueType {
+    constructor () {}
     /**
      * @en
      * Clone the current object. The clone result of the object should be equal to the current object,

cocos/gfx/base/device.ts

@@ -52,7 +52,10 @@
  * @en GFX Device.
  * @zh GFX 设备。
  */
 export abstract class Device {
+
+    constructor () {}
+
     /**
      * @en Current rendering API.
      * @zh 当前 GFX 使用的渲染 API。

cocos/gfx/device-manager.ts

@@ -100,6 +100,9 @@ export class DeviceManager {
     private _swapchain!: Swapchain;
     private _renderType: RenderType = RenderType.UNKNOWN;
     private _deviceInitialized = false;
+
+    constructor () {}
+
     public get gfxDevice (): Device {
         return this._gfxDevice;
     }

cocos/particle-2d/particle-asset.ts

@@ -39,7 +39,7 @@ const { ccclass, serializable, editable } = _decorator;
 export class ParticleAsset extends Asset {
     @serializable
     @editable
-    public spriteFrame: SpriteFrame | null= null;
+    public spriteFrame: SpriteFrame | null = null;
 }
 
 cclegacy.ParticleAsset = ParticleAsset;

cocos/render-scene/scene/fog.ts

@@ -79,6 +79,7 @@ export const FOG_TYPE_NONE = FogType.LAYERED + 1;
  * @zh 渲染场景中的全局雾效配置
  */
 export class Fog {
+    constructor () {}
     /**
      * @zh 是否启用全局雾效
      * @en Enable global fog

cocos/render-scene/scene/submodel.ts

@@ -66,6 +66,8 @@ export class SubModel {
     protected _instancedSHIndex = -1;
     protected _useReflectionProbeType = 0;
 
+    constructor () {}
+
     /**
      * @en
      * sub model's passes

cocos/rendering/define.ts

@@ -677,6 +677,7 @@ localDescriptorSetLayout.bindings[UBOMorph.BINDING] = UBOMorph.DESCRIPTOR;
 
 // UI local uniform UBO
 export class UBOUILocal { // pre one vec4
+    private constructor () {}
     public static readonly NAME = 'CCUILocal';
     public static readonly BINDING = ModelLocalBindings.UBO_UI_LOCAL;
     public static readonly DESCRIPTOR = new DescriptorSetLayoutBinding(UBOUILocal.BINDING, DescriptorType.DYNAMIC_UNIFORM_BUFFER, 1, ShaderStageFlagBit.VERTEX);