chore: release v8.13.0

package.json

@@ -1,6 +1,6 @@
 {
     "name": "lwc-monorepo",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "private": true,
     "description": "Lightning Web Components",
     "repository": {
@@ -34,7 +34,7 @@
         "release:publish": "nx release publish --registry https://registry.npmjs.org"
     },
     "devDependencies": {
-        "@commitlint/cli": "^19.6.1",
+        "@commitlint/cli": "^19.7.1",
         "@eslint/js": "9.19.0",
         "@lwc/eslint-plugin-lwc-internal": "link:./scripts/eslint-plugin",
         "@lwc/test-utils-lwc-internals": "link:./scripts/test-utils",
@@ -45,17 +45,17 @@
         "@rollup/plugin-replace": "^6.0.2",
         "@rollup/plugin-typescript": "^12.1.2",
         "@swc-node/register": "~1.10.9",
-        "@swc/core": "~1.10.11",
+        "@swc/core": "~1.10.12",
         "@swc/helpers": "~0.5.15",
         "@types/babel__core": "^7.20.5",
-        "@types/node": "^22.10.10",
-        "@vitest/coverage-v8": "^3.0.4",
+        "@types/node": "^22.13.0",
+        "@vitest/coverage-v8": "^3.0.5",
         "@vitest/eslint-plugin": "^1.1.25",
-        "@vitest/ui": "^3.0.4",
+        "@vitest/ui": "^3.0.5",
         "bytes": "^3.1.2",
         "es-module-lexer": "^1.6.0",
         "eslint": "9.19.0",
-        "eslint-config-flat-gitignore": "^1.0.0",
+        "eslint-config-flat-gitignore": "^2.0.0",
         "eslint-plugin-header": "^3.1.1",
         "eslint-plugin-import": "^2.31.0",
         "glob": "^11.0.1",
@@ -67,12 +67,12 @@
         "magic-string": "^0.30.17",
         "nx": "20.3.3",
         "prettier": "^3.4.2",
-        "rollup": "^4.32.0",
+        "rollup": "^4.34.1",
         "terser": "^5.37.0",
         "tslib": "^2.8.1",
         "typescript": "5.7.3",
-        "typescript-eslint": "8.21.0",
-        "vitest": "^3.0.4"
+        "typescript-eslint": "8.22.0",
+        "vitest": "^3.0.5"
     },
     "lint-staged": {
         "*.{js,mjs,ts}": "eslint --cache",

packages/@lwc/aria-reflection/package.json

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/aria-reflection",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "ARIA element reflection polyfill for strings",
     "keywords": [
         "aom",

packages/@lwc/babel-plugin-component/package.json

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/babel-plugin-component",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "Babel plugin to transform a LWC module",
     "keywords": [
         "lwc"
@@ -47,8 +47,8 @@
     },
     "dependencies": {
         "@babel/helper-module-imports": "7.25.9",
-        "@lwc/errors": "8.12.7",
-        "@lwc/shared": "8.12.7",
+        "@lwc/errors": "8.13.0",
+        "@lwc/shared": "8.13.0",
         "line-column": "~1.0.2"
     },
     "devDependencies": {

packages/@lwc/compiler/package.json

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/compiler",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "LWC compiler",
     "keywords": [
         "lwc"
@@ -52,11 +52,11 @@
         "@babel/plugin-transform-class-properties": "7.25.9",
         "@babel/plugin-transform-object-rest-spread": "7.25.9",
         "@locker/babel-plugin-transform-unforgeables": "0.22.0",
-        "@lwc/babel-plugin-component": "8.12.7",
-        "@lwc/errors": "8.12.7",
-        "@lwc/shared": "8.12.7",
-        "@lwc/ssr-compiler": "8.12.7",
-        "@lwc/style-compiler": "8.12.7",
-        "@lwc/template-compiler": "8.12.7"
+        "@lwc/babel-plugin-component": "8.13.0",
+        "@lwc/errors": "8.13.0",
+        "@lwc/shared": "8.13.0",
+        "@lwc/ssr-compiler": "8.13.0",
+        "@lwc/style-compiler": "8.13.0",
+        "@lwc/template-compiler": "8.13.0"
     }
 }

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

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/engine-core",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "Core LWC engine APIs.",
     "keywords": [
         "lwc"
@@ -46,9 +46,9 @@
         }
     },
     "dependencies": {
-        "@lwc/features": "8.12.7",
-        "@lwc/shared": "8.12.7",
-        "@lwc/signals": "8.12.7"
+        "@lwc/features": "8.13.0",
+        "@lwc/shared": "8.13.0",
+        "@lwc/signals": "8.13.0"
     },
     "devDependencies": {
         "observable-membrane": "2.0.0"

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

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/engine-dom",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "Renders LWC components in a DOM environment.",
     "keywords": [
         "lwc"
@@ -46,9 +46,9 @@
         }
     },
     "devDependencies": {
-        "@lwc/engine-core": "8.12.7",
-        "@lwc/shared": "8.12.7",
-        "@lwc/features": "8.12.7"
+        "@lwc/engine-core": "8.13.0",
+        "@lwc/shared": "8.13.0",
+        "@lwc/features": "8.13.0"
     },
     "lwc": {
         "modules": [

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

@@ -4,7 +4,7 @@
         "You can safely modify dependencies, devDependencies, keywords, etc., but other props will be overwritten."
     ],
     "name": "@lwc/engine-server",
-    "version": "8.12.7",
+    "version": "8.13.0",
     "description": "Renders LWC components in a server environment.",
     "keywords": [
         "lwc"
@@ -46,10 +46,10 @@
         }
     },
     "devDependencies": {
-        "@lwc/engine-core": "8.12.7",
-        "@lwc/rollup-plugin": "8.12.7",
-        "@lwc/shared": "8.12.7",
-        "@lwc/features": "8.12.7",
+        "@lwc/engine-core": "8.13.0",
+        "@lwc/rollup-plugin": "8.13.0",
+        "@lwc/shared": "8.13.0",
+        "@lwc/features": "8.13.0",
         "@rollup/plugin-virtual": "^3.0.2",
         "parse5": "^7.2.1"
     }

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/expected.html

@@ -0,0 +1,24 @@
+<x-parent>
+  <template shadowrootmode="open">
+    <x-child>
+      <template shadowrootmode="open">
+        <p>
+          Super: super string theory
+        </p>
+        <p>
+          Untalented: untalented string theory
+        </p>
+      </template>
+    </x-child>
+    <x-child>
+      <template shadowrootmode="open">
+        <p>
+          Super: field api value
+        </p>
+        <p>
+          Untalented: field api value
+        </p>
+      </template>
+    </x-child>
+  </template>
+</x-parent>

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/index.js

@@ -0,0 +1,3 @@
+export const tagName = 'x-parent';
+export { default } from 'x/parent';
+export * from 'x/parent';

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/modules/x/child/child.html

@@ -0,0 +1,4 @@
+<template>
+    <p>Super: {superField}</p>
+    <p>Untalented: {untalentedField}</p>
+</template>

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/modules/x/child/child.js

@@ -0,0 +1,6 @@
+import { api } from 'lwc';
+import SuperChild from 'x/superChild';
+
+export default class Child extends SuperChild {
+    @api untalentedField;
+}

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/modules/x/parent/parent.html

@@ -0,0 +1,4 @@
+<template>
+    <x-child untalented-field="untalented string theory" super-field="super string theory"></x-child>
+    <x-child untalented-field={fieldApiValue} super-field={fieldApiValue}></x-child>
+</template>

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/modules/x/parent/parent.js

@@ -0,0 +1,5 @@
+import { LightningElement } from 'lwc';
+
+export default class Parent extends LightningElement {
+    fieldApiValue = 'field api value';
+}

packages/@lwc/engine-server/src/__tests__/fixtures/api/inherited/modules/x/superChild/superChild.js

@@ -0,0 +1,5 @@
+import { LightningElement, api } from 'lwc';
+
+export default class SuperChild extends LightningElement {
+    @api superField;
+}

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/expected.html

@@ -1,4 +1,19 @@
-<x-cmp>
+<x-parent>
   <template shadowrootmode="open">
+    <x-shadow>
+      <template shadowrootmode="open">
+      </template>
+    </x-shadow>
+    <x-shadow>
+      <template shadowrootmode="open">
+      </template>
+      <h1>
+        slotted content
+      </h1>
+    </x-shadow>
+    <x-light>
+    </x-light>
+    <x-light>
+    </x-light>
   </template>
-</x-cmp>
+</x-parent>

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/index.js

@@ -1,3 +1,3 @@
-export const tagName = 'x-cmp';
-export { default } from 'x/cmp';
-export * from 'x/cmp';
+export const tagName = 'x-parent';
+export { default } from 'x/parent';
+export * from 'x/parent';

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/modules/x/light/light.html

@@ -0,0 +1,3 @@
+<template lwc:render-mode="light">
+  This template isn't actually used because `export {Component as default}` isn't recognized as an LWC component.
+</template>

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/modules/x/light/light.js

@@ -0,0 +1,7 @@
+import { LightningElement } from 'lwc';
+
+class Light extends LightningElement {
+    static renderMode = 'light';
+}
+
+export { Light as default };

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/modules/x/parent/parent.html

@@ -0,0 +1,6 @@
+<template>
+  <x-shadow></x-shadow>
+  <x-shadow><h1>slotted content</h1></x-shadow>
+  <x-light></x-light>
+  <x-light><h1>slotted content</h1></x-light>
+</template>

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/modules/x/parent/parent.js

@@ -0,0 +1,3 @@
+import { LightningElement } from 'lwc';
+
+export default class Parent extends LightningElement {}

packages/@lwc/engine-server/src/__tests__/fixtures/exports/component-as-default/modules/x/shadow/shadow.js

@@ -0,0 +1,5 @@
+import { LightningElement } from 'lwc';
+
+class Shadow extends LightningElement {}
+
+export { Shadow as default };

packages/@lwc/engine-server/src/__tests__/fixtures/getter-class-list/modules/x/getter-class-list/getter-class-list.js

@@ -9,5 +9,6 @@ export default class GetterClassList extends LightningElement {
         classList.remove('b');
 
         expect(this.getAttribute('class')).toBe('a c d-e');
+        expect(() => this.classList.length).not.toThrow();
     }
 }

packages/@lwc/engine-server/src/__tests__/fixtures/if-block/expected.html

@@ -1,5 +1,22 @@
 <x-if-block>
   <template shadowrootmode="open">
-    I am rendered!
+    <h1>
+      True!
+    </h1>
+    <p>
+      I am rendered because I am true to myself!
+    </p>
+    <p>
+      I am rendered because I am true enough!
+    </p>
+    <h1>
+      False!
+    </h1>
+    <p>
+      I am rendered because I am very false!
+    </p>
+    <p>
+      I am rendered because I am untrustworthy!
+    </p>
   </template>
 </x-if-block>

packages/@lwc/engine-server/src/__tests__/fixtures/if-block/modules/x/if-block/if-block.html

@@ -1,8 +1,28 @@
 <template>
+    <h1>True!</h1>
     <template if:true={isTrue}>
-        I am rendered!
+        <p>I am rendered because I am true to myself!</p>
     </template>
     <template if:true={isFalse}>
-        I am not rendered!
+        <p>I am not rendered because I am very false!</p>
+    </template>
+    <template if:true={isTruthy}>
+        <p>I am rendered because I am true enough!</p>
+    </template>
+    <template if:true={isFalsey}>
+        <p>I am not rendered because I am untrustworthy!</p>
+    </template>
+    <h1>False!</h1>
+    <template if:false={isTrue}>
+        <p>I am not rendered because I am true to myself!</p>
+    </template>
+    <template if:false={isFalse}>
+        <p>I am rendered because I am very false!</p>
+    </template>
+    <template if:false={isTruthy}>
+        <p>I am not rendered because I am true enough!</p>
+    </template>
+    <template if:false={isFalsey}>
+        <p>I am rendered because I am untrustworthy!</p>
     </template>
 </template>

packages/@lwc/engine-server/src/__tests__/fixtures/if-block/modules/x/if-block/if-block.js

@@ -3,4 +3,6 @@ import { LightningElement, api } from 'lwc';
 export default class IfBlock extends LightningElement {
     isTrue = true;
     isFalse = false;
+    isTruthy = 'truthy value';
+    isFalsey = null;
 }

packages/@lwc/engine-server/src/__tests__/fixtures/non-lwc-class/expected.html

@@ -0,0 +1,5 @@
+<x-cmp>
+  <template shadowrootmode="open">
+    Value: foobar
+  </template>
+</x-cmp>

packages/@lwc/engine-server/src/__tests__/fixtures/non-lwc-class/index.js

@@ -0,0 +1,3 @@
+export const tagName = 'x-cmp';
+export { default } from 'x/cmp';
+export * from 'x/cmp';

packages/@lwc/engine-server/src/__tests__/fixtures/non-lwc-class/modules/x/cmp/cmp.html

@@ -0,0 +1,4 @@
+<template>
+    Value: {foo.value}
+    <!-- Dude -->
+</template>