chore: migrate to tsgo and typescript 6.x [AR-51963]

.changeset/quick-cars-raise.md

@@ -0,0 +1,5 @@
+---
+'@drivenets/eslint-plugin-design-system': patch
+---
+
+Support TypeScript 6.x

.cursor/rules/checkers.mdc

@@ -22,7 +22,7 @@ pnpm eslint packages/eslint-plugin/src/
 pnpm eslint --fix packages/design-system/src/components/ds-button/
 ```
 
-### Type Checking (tsc)
+### Type Checking (tsgo)
 
 TypeScript checks the whole project config, so scope by package:
 

.vscode/extensions.json

@@ -1,3 +1,8 @@
 {
-	"recommendations": ["oxc.oxc-vscode", "dbaeumer.vscode-eslint", "streetsidesoftware.code-spell-checker"]
+	"recommendations": [
+		"oxc.oxc-vscode",
+		"dbaeumer.vscode-eslint",
+		"streetsidesoftware.code-spell-checker",
+		"typescriptteam.native-preview"
+	]
 }

.vscode/settings.json

@@ -5,5 +5,6 @@
 	"oxc.fmt.configPath": ".oxfmtrc.json",
 	"editor.defaultFormatter": "oxc.oxc-vscode",
 
-	"typescript.tsdk": "node_modules/typescript/lib"
+	"typescript.tsdk": "node_modules/typescript/lib",
+	"typescript.experimental.useTsgo": true
 }

lint-staged.config.mjs

@@ -4,6 +4,6 @@
 export default {
 	'*': 'cspell --no-must-find-files',
 	'!(*.js|*.mjs|*.ts|*.tsx)': 'oxfmt --no-error-on-unmatched-pattern',
-	'*.{ts,tsx}': () => 'tsc --noEmit',
+	'*.{ts,tsx}': () => 'tsgo --noEmit',
 	'*.{js,mjs,ts,tsx}': ['oxfmt', 'eslint --max-warnings=0'],
 };

package.json

@@ -11,7 +11,7 @@
 		"lint": "turbo run lint:root lint",
 		"lint:root": "eslint --max-warnings=0 .",
 		"typecheck": "turbo run typecheck typecheck:root",
-		"typecheck:root": "tsc",
+		"typecheck:root": "tsgo",
 		"lint:versions": "syncpack lint",
 		"lint:spell": "cspell . --quiet",
 		"lint:unused": "knip",
@@ -42,6 +42,7 @@
 		"@eslint/core": "^1.1.0",
 		"@eslint/js": "^10.0.1",
 		"@types/node": "^25.3.3",
+		"@typescript/native-preview": "7.0.0-dev.20260304.1",
 		"@vitest/eslint-plugin": "^1.6.9",
 		"cspell": "^9.7.0",
 		"eslint": "^10.0.1",
@@ -56,7 +57,7 @@
 		"playwright": "^1.58.2",
 		"syncpack": "^14.0.0",
 		"turbo": "^2.8.12",
-		"typescript": "^5.9.3",
+		"typescript": "6.0.1-rc",
 		"typescript-eslint": "^8.56.1"
 	},
 	"pnpm": {
@@ -80,7 +81,8 @@
 			"string.prototype.matchall": "npm:@nolyfill/string.prototype.matchall@^1",
 			"string.prototype.repeat": "npm:@nolyfill/string.prototype.repeat@^1",
 			"esbuild@<=0.24.2": ">=0.25.0",
-			"eslint": "^10.0.1"
+			"eslint": "^10.0.1",
+			"typescript": "6.0.0-beta"
 		}
 	}
 }

packages/commitlint-plugin/package.json

@@ -18,14 +18,15 @@
 	},
 	"scripts": {
 		"lint": "eslint --max-warnings=0 .",
-		"typecheck": "tsc"
+		"typecheck": "tsgo"
 	},
 	"peerDependencies": {
 		"@commitlint/lint": "^20.2.0",
 		"@commitlint/types": "^20.2.0"
 	},
 	"devDependencies": {
+		"@typescript/native-preview": "7.0.0-dev.20260304.1",
 		"eslint": "^10.0.1",
-		"typescript": "^5.9.3"
+		"typescript": "6.0.1-rc"
 	}
 }

packages/design-system/package.json

@@ -37,7 +37,7 @@
 	},
 	"scripts": {
 		"lint": "pnpm generate-scss-dts && eslint --max-warnings=0 .; EXIT_CODE=$?; rm -rf .scss-dts; exit $EXIT_CODE",
-		"typecheck": "pnpm generate-scss-dts && tsc; EXIT_CODE=$?; rm -rf .scss-dts; exit $EXIT_CODE",
+		"typecheck": "pnpm generate-scss-dts && tsgo; EXIT_CODE=$?; rm -rf .scss-dts; exit $EXIT_CODE",
 		"generate-scss-dts": "typed-scss-modules ./src -o ./.scss-dts --nameFormat all --exportType default > /dev/null 2>&1",
 		"storybook": "storybook dev -p 6006",
 		"test": "vitest --project=\"!requires-build\"",
@@ -92,6 +92,7 @@
 		"@types/eslint-plugin-jsx-a11y": "^6.10.1",
 		"@types/react": "^19.2.14",
 		"@types/react-dom": "^19.2.3",
+		"@typescript/native-preview": "7.0.0-dev.20260304.1",
 		"@vitest/browser": "^4.0.18",
 		"@vitest/browser-playwright": "^4.0.18",
 		"@vitest/coverage-v8": "^4.0.18",
@@ -115,7 +116,7 @@
 		"storybook": "^10.2.13",
 		"tsdown": "^0.20.3",
 		"typed-scss-modules": "^8.1.1",
-		"typescript": "^5.9.3",
+		"typescript": "6.0.1-rc",
 		"typescript-plugin-css-modules": "^5.2.0",
 		"vite": "^7.3.1",
 		"vitest": "^4.0.18",

packages/design-system/src/components/ds-tree/ds-tree.types.ts

@@ -15,12 +15,12 @@ export interface DsTreeNode {
 export const dsTreeSizes = ['medium', 'small'] as const;
 export type DsTreeSize = (typeof dsTreeSizes)[number];
 
-interface DsTreeBaseProps {
+export interface DsTreeBaseProps {
 	className?: string;
 	style?: CSSProperties;
 }
 
-interface DsTreeBasePropsWithChildren extends DsTreeBaseProps {
+export interface DsTreeBasePropsWithChildren extends DsTreeBaseProps {
 	children?: ReactNode;
 }
 

packages/eslint-plugin/package.json

@@ -32,7 +32,7 @@
 	},
 	"scripts": {
 		"lint": "eslint --max-warnings=0 .",
-		"typecheck": "tsc",
+		"typecheck": "tsgo",
 		"test": "vitest",
 		"test:coverage": "pnpm test --coverage",
 		"build": "tsdown",
@@ -44,16 +44,17 @@
 	},
 	"devDependencies": {
 		"@arethetypeswrong/cli": "^0.18.2",
+		"@typescript/native-preview": "7.0.0-dev.20260304.1",
 		"@vitest/coverage-v8": "^4.0.18",
 		"eslint": "^10.0.1",
 		"publint": "^0.3.17",
 		"tsdown": "^0.20.3",
-		"typescript": "^5.9.3",
+		"typescript": "6.0.1-rc",
 		"vitest": "^4.0.18"
 	},
 	"peerDependencies": {
 		"@typescript-eslint/parser": "^8.50.0",
 		"eslint": "^9.0.0 || ^10.0.0",
-		"typescript": "^5.0.0"
+		"typescript": "^5.0.0 || ^6.0.0"
 	}
 }

packages/vite-plugin/package.json

@@ -37,7 +37,7 @@
 	},
 	"scripts": {
 		"lint": "eslint --max-warnings=0 .",
-		"typecheck": "tsc",
+		"typecheck": "tsgo",
 		"build": "tsdown",
 		"build:lint": "TARBALL=$(pnpm pack | tail -n1) && publint $TARBALL && attw $TARBALL; rm -f $TARBALL",
 		"test": "vitest",
@@ -48,12 +48,13 @@
 	},
 	"devDependencies": {
 		"@arethetypeswrong/cli": "^0.18.2",
+		"@typescript/native-preview": "7.0.0-dev.20260304.1",
 		"@vitest/coverage-v8": "^4.0.18",
 		"eslint": "^10.0.1",
 		"memfs": "^4.56.10",
 		"publint": "^0.3.17",
 		"tsdown": "^0.20.3",
-		"typescript": "^5.9.3",
+		"typescript": "6.0.1-rc",
 		"vitest": "^4.0.18"
 	}
 }