From 141fde1632b4834449cfd48dcebfc8b1b7d58e09 Mon Sep 17 00:00:00 2001
From: Alan Agius <alan.agius4@gmail.com>
Date: Sat, 4 Sep 2021 11:35:38 +0200
Subject: [PATCH] fix(animations): emit pure annotations to static property
 initializers (#43344)

Currently the pure annotations comments are not emitted because unless the entire expression is wrapped in braces.

See the below TypeScript playgrounds

https://www.typescriptlang.org/play?target=99&module=1&ts=4.4.2&ssl=8&ssc=1&pln=1&pc=1#code/MYGwhgzhAEByCuIQEkB2ArApsALgewCdoBvAXwFgAoKzADwAdCdowAjCHAsXaUSGNFlyESVaNA5gcAS2BwAqgBlF0ALzQA9ACpoAAQD6+gAryASgFFD0LRuipMAdziIUGbPgIAKAJQBuKhTUlMB4qBB4IJgAdCB4AOaegu6EUbBKin5UQA
```js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Injector = void 0;
class NullInjector {
}
class Injector {
}
exports.Injector = Injector;
Injector.NULL = new NullInjector();
console.log(Injector.NULL);

```

https://www.typescriptlang.org/play?target=99&module=1&ts=4.4.2&ssl=4&ssc=18&pln=4&pc=33#code/MYGwhgzhAEByCuIQEkB2ArApsALgewCdoBvAXwFgAoKzADwAdCdowAjCHAsXaUSGNFlyESVaNA5gcAS2BwAqgBlF0ALzQAFAHoAVNAACAfUMAFeQCUAoseg6t0VJgDucRCgzZ8BDQEofAbioKakpgPFQIPBBMADoQPABzDUFPQhjYJUUAqiA

```js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Injector = void 0;
class NullInjector {
}
class Injector {
}
exports.Injector = Injector;
Injector.NULL = ( /* @__PURE__ */new NullInjector());
console.log(Injector.NULL);
```

PR Close #43344
---
 packages/animations/browser/src/render/animation_driver.ts     | 2 +-
 packages/animations/browser/src/render/special_cased_styles.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/animations/browser/src/render/animation_driver.ts b/packages/animations/browser/src/render/animation_driver.ts
index 0dc61bd889959..f33c3c7ef0c4f 100644
--- a/packages/animations/browser/src/render/animation_driver.ts
+++ b/packages/animations/browser/src/render/animation_driver.ts
@@ -47,7 +47,7 @@ export class NoopAnimationDriver implements AnimationDriver {
  * @publicApi
  */
 export abstract class AnimationDriver {
-  static NOOP: AnimationDriver = /* @__PURE__ */ new NoopAnimationDriver();
+  static NOOP: AnimationDriver = (/* @__PURE__ */ new NoopAnimationDriver());
 
   abstract validateStyleProperty(prop: string): boolean;
 
diff --git a/packages/animations/browser/src/render/special_cased_styles.ts b/packages/animations/browser/src/render/special_cased_styles.ts
index c01076e85f097..00d87b0a7a55a 100644
--- a/packages/animations/browser/src/render/special_cased_styles.ts
+++ b/packages/animations/browser/src/render/special_cased_styles.ts
@@ -44,7 +44,7 @@ export function packageNonAnimatableStyles(
  * `destroy()` is called then all styles will be removed.
  */
 export class SpecialCasedStyles {
-  static initialStylesByElement = /* @__PURE__ */ new WeakMap<any, {[key: string]: any}>();
+  static initialStylesByElement = (/* @__PURE__ */ new WeakMap<any, {[key: string]: any}>());
 
   private _state = SpecialCasedStylesState.Pending;
   private _initialStyles!: {[key: string]: any};