fix: expose additional signals api (#5402)

* fix: expose additional signals api

* fix: bundle size

Author: jhefferman-sfdc

packages/@lwc/engine-core/README.md

@@ -122,6 +122,10 @@ This experimental API enables the addition of a signal as a trusted signal. If t
 
 If `setTrustedSignalSet` is called more than once, it will throw an error. If it is never called, then no trusted signal validation will be performed. The same `setTrustedSignalSet` API must be called on both `@lwc/engine-dom` and `@lwc/signals`.
 
+### isTrustedSignal()
+
+Not intended for external use. This experimental API enables the caller to determine if an object is a trusted signal. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
+
 ### setContextKeys
 
 Not intended for external use. Enables another library to establish contextful relationships via the LWC component tree. The `connectContext` and `disconnectContext` symbols that are provided are later used to identify methods that facilitate the establishment and dissolution of these contextful relationships. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
@@ -136,3 +140,7 @@ If `setTrustedContextSet` is called more than once, it will throw an error. If i
 
 The context object's `connectContext` and `disconnectContext` methods are called with this object when contextful components are connected and disconnected. The ContextBinding exposes `provideContext` and `consumeContext`,
 enabling the provision/consumption of a contextful Signal of a specified variety for the associated component. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
+
+### SignalBaseClass
+
+Not intended for external use. Signals that extend SignalBaseClass will be added to set of trusted signals. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.

packages/@lwc/engine-core/src/framework/main.ts

@@ -78,5 +78,8 @@ export {
     setTrustedSignalSet,
     setTrustedContextSet,
     addTrustedContext,
+    isTrustedSignal,
 } from '@lwc/shared';
 export type { Stylesheet, Stylesheets } from '@lwc/shared';
+
+export { SignalBaseClass } from '@lwc/signals';

packages/@lwc/engine-dom/package.json

@@ -48,7 +48,8 @@
     "devDependencies": {
         "@lwc/engine-core": "8.20.0",
         "@lwc/shared": "8.20.0",
-        "@lwc/features": "8.20.0"
+        "@lwc/features": "8.20.0",
+        "@lwc/signals": "8.20.0"
     },
     "lwc": {
         "modules": [

packages/@lwc/engine-dom/src/index.ts

@@ -28,6 +28,7 @@ export {
     setHooks,
     getComponentDef,
     isComponentConstructor,
+    isTrustedSignal,
     parseFragment,
     parseSVGFragment,
     setContextKeys,
@@ -40,6 +41,7 @@ export {
     getComponentConstructor,
     __unstable__ProfilerControl,
     __unstable__ReportingControl,
+    SignalBaseClass,
 } from '@lwc/engine-core';
 
 // Engine-core public types ------------------------------------------------------------------------

packages/@lwc/engine-server/package.json

@@ -50,6 +50,7 @@
         "@lwc/rollup-plugin": "8.20.0",
         "@lwc/shared": "8.20.0",
         "@lwc/features": "8.20.0",
+        "@lwc/signals": "8.20.0",
         "@rollup/plugin-virtual": "^3.0.2",
         "parse5": "^7.3.0"
     }

packages/@lwc/engine-server/src/index.ts

@@ -27,11 +27,13 @@ export {
     setHooks,
     getComponentDef,
     isComponentConstructor,
+    isTrustedSignal,
     parseFragment,
     parseFragment as parseSVGFragment,
     setTrustedContextSet,
     addTrustedContext as __dangerous_do_not_use_addTrustedContext,
     setContextKeys,
+    SignalBaseClass,
 } from '@lwc/engine-core';
 
 // Engine-server public APIs -----------------------------------------------------------------------

packages/@lwc/ssr-runtime/package.json

@@ -51,6 +51,7 @@
         "@lwc/shared": "8.20.0",
         "@lwc/engine-core": "8.20.0",
         "@lwc/features": "8.20.0",
+        "@lwc/signals": "8.20.0",
         "observable-membrane": "2.0.0"
     }
 }

packages/@lwc/ssr-runtime/src/index.ts

@@ -18,8 +18,11 @@ export {
     setTrustedSignalSet,
     setTrustedContextSet,
     addTrustedContext as __dangerous_do_not_use_addTrustedContext,
+    isTrustedSignal,
 } from '@lwc/shared';
 
+export { SignalBaseClass } from '@lwc/signals';
+
 export { setFeatureFlag, setFeatureFlagForTest } from '@lwc/features';
 
 export { ClassList } from './class-list';

packages/lwc/README.md

@@ -88,6 +88,10 @@ This experimental API enables the addition of a signal as a trusted signal. If t
 
 If `setTrustedSignalSet` is called more than once, it will throw an error. If it is never called, then no trusted signal validation will be performed. The same `setTrustedSignalSet` API must be called on both `@lwc/engine-dom` and `@lwc/signals`.
 
+### isTrustedSignal()
+
+Not intended for external use. This experimental API enables the caller to determine if an object is a trusted signal. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
+
 ### setContextKeys
 
 Not intended for external use. Enables another library to establish contextful relationships via the LWC component tree. The `connectContext` and `disconnectContext` symbols that are provided are later used to identify methods that facilitate the establishment and dissolution of these contextful relationships. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
@@ -102,3 +106,7 @@ If `setTrustedContextSet` is called more than once, it will throw an error. If i
 
 The context object's `connectContext` and `disconnectContext` methods are called with this object when contextful components are connected and disconnected. The ContextBinding exposes `provideContext` and `consumeContext`,
 enabling the provision/consumption of a contextful Signal of a specified variety for the associated component. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.
+
+### SignalBaseClass
+
+Not intended for external use. Signals that extend SignalBaseClass will be added to set of trusted signals. The [ENABLE_EXPERIMENTAL_SIGNALS](https://github.com/salesforce/lwc/blob/master/packages/%40lwc/features/README.md#lwcfeatures) feature must be enabled.

scripts/bundlesize/bundlesize.config.json

@@ -2,7 +2,7 @@
     "files": [
         {
             "path": "packages/@lwc/engine-dom/dist/index.js",
-            "maxSize": "24.62KB"
+            "maxSize": "24.68KB"
         },
         {
             "path": "packages/@lwc/synthetic-shadow/dist/index.js",