Type-check with the TypeScript 7 nightly and isolatedDeclarations

.github/workflows/ci.yml

@@ -55,23 +55,38 @@ jobs:
       fail-fast: true
       matrix:
         typescript-scenario:
-          - typescript@5.5
           - typescript@5.6
           - typescript@5.7
           - typescript@5.8
+          - typescript@5.9
+          - typescript@6.0
+          - typescript@next
 
     steps:
       - uses: actions/checkout@v6
       - uses: wyvox/action-setup-pnpm@v3
       - uses: ./.github/actions/download-built-package
       - name: 'Change TS to ${{ matrix.typescript-scenario }}'
-        run: 'pnpm add --save-dev ${{ matrix.typescript-scenario}}'
+        if: matrix.typescript-scenario != 'typescript@next'
+        # A bare typescript@6.0 keeps the @typescript/typescript6 alias, so name the npm package
+        run: 'pnpm add --save-dev "typescript@npm:${{ matrix.typescript-scenario }}"'
         working-directory: ./test-app
       - name: 'Type checking'
+        if: matrix.typescript-scenario != 'typescript@next'
         run: |
           pnpm --filter test-app exec tsc -v;
           pnpm --filter test-app exec ember-tsc --version;
           pnpm --filter test-app exec ember-tsc --noEmit;
+      # TypeScript 7 checks .gts through ember-content-mapper, not ember-tsc
+      - name: 'Change TS to the latest TypeScript 7 nightly'
+        if: matrix.typescript-scenario == 'typescript@next'
+        run: 'pnpm add --save-dev "@typescript/native@npm:typescript@next"'
+        working-directory: ./test-app
+      - name: 'Type checking (TypeScript 7)'
+        if: matrix.typescript-scenario == 'typescript@next'
+        run: |
+          pnpm --filter test-app exec tsc -v;
+          pnpm --filter test-app exec tsc --noEmit --runExternalCode;
 
 
   default_tests:

docs-api/package.json

@@ -8,12 +8,12 @@
     "docs:watch": "typedoc --options ./typedoc.config.json --watch"
   },
   "devDependencies": {
-    "typedoc": "^0.28.17",
+    "typedoc": "^0.28.20",
     "typedoc-github-wiki-theme": "^2.1.0",
     "typedoc-gitlab-wiki-theme": "^2.1.0",
     "typedoc-plugin-markdown": "^4.10.0",
     "typedoc-plugin-markdown-pages": "^0.3.0",
     "typedoc-plugin-mdn-links": "^5.1.1",
-    "typescript": "~5.9.3"
+    "typescript": "npm:@typescript/typescript6@^6.0.2"
   }
 }

docs-app/package.json

@@ -30,7 +30,7 @@
     "lint:hbs:fix": "ember-template-lint . --fix",
     "lint:js": "eslint . --cache",
     "lint:js:fix": "eslint . --fix",
-    "lint:types": "ember-tsc --noEmit",
+    "lint:types": "tsc --noEmit --runExternalCode",
     "start": "vite",
     "test": "pnpm test:ember",
     "test:ember": "pnpm build:test && pnpm dist:ember:test",
@@ -46,21 +46,23 @@
     "@embroider/macros": "^1.19.7",
     "@embroider/vite": "^1.5.2",
     "@glimmer/component": "^2.0.0",
-    "@glint/ember-tsc": "^1.1.1",
-    "@glint/template": "1.7.4",
+    "@glint/ember-tsc": "^1.11.4",
+    "@glint/template": "1.9.0",
     "@html-next/vertical-collection": "^5.0.2",
     "@rollup/plugin-babel": "^6.1.0",
     "@tailwindcss/typography": "^0.5.19",
     "@tsconfig/ember": "^3.0.12",
     "@types/dompurify": "^3.2.0",
     "@types/qunit": "^2.19.13",
     "@types/rsvp": "^4.0.9",
+    "@typescript/native": "npm:typescript@7.1.0-dev.20260922.1",
     "autoprefixer": "^10.4.24",
     "concurrently": "^9.2.1",
     "cssnano": "^7.1.2",
     "decorator-transforms": "^2.3.1",
     "ember-auto-import": "^2.12.0",
     "ember-cli": "~6.11.0",
+    "ember-content-mapper": "^0.3.1",
     "ember-eslint": "^0.6.1",
     "ember-page-title": "^9.0.3",
     "ember-qunit": "^9.0.4",
@@ -76,7 +78,7 @@
     "qunit": "^2.25.0",
     "qunit-dom": "^3.5.0",
     "tailwindcss": "^3.4.17",
-    "typescript": "~5.9.3",
+    "typescript": "npm:@typescript/typescript6@^6.0.2",
     "vite": "7.3.5"
   },
   "ember": {

docs-app/tsconfig.json

@@ -7,16 +7,17 @@
 
     // stylistic
     "noPropertyAccessFromIndexSignature": false,
-
-    // The combination of `baseUrl` with `paths` allows Ember's classic package
-    // layout, which is not resolvable with the Node resolution algorithm, to
-    // work with TypeScript.
-    "baseUrl": ".",
     "types": [
       "vite/client",
       "@embroider/core/virtual",
       "ember-source/types",
       "kolay/virtual"
     ]
-  }
+  },
+  "contentMappers": [
+    {
+      "package": "ember-content-mapper",
+      "extensions": [".gts", ".gjs"]
+    }
+  ]
 }