chore(toolkit): migrate TypeScript setup to "moduleResolution": "bundler"

packages/toolkit/tsconfig.base.json

@@ -1,44 +1,39 @@
 {
   "compilerOptions": {
-    "target": "ESnext",
-    "module": "ESnext",
-    "lib": ["DOM", "ESNext"],
-    "importHelpers": true,
-    // output .d.ts declaration files for consumers
+    "allowSyntheticDefaultImports": true,
     "declaration": true,
-    // match output dir to input dir. e.g. dist/index instead of dist/src/index
-    "rootDir": "./src",
-    // stricter type-checking for stronger correctness. Recommended by TS
-    "strict": true,
-    // linter checks for common issues
-    "noImplicitReturns": true,
-    "noFallthroughCasesInSwitch": true,
-    // noUnused* overlap with @typescript-eslint/no-unused-vars, can disable if duplicative
-    "noUnusedLocals": false,
-    "noUnusedParameters": false,
-    // use Node's module resolution algorithm, instead of the legacy TS one
-    "moduleResolution": "Node",
-    // transpile JSX to React.createElement
-    "jsx": "react",
-    // interop between ESM and CJS modules. Recommended by TS
+    "declarationMap": true,
     "esModuleInterop": true,
-    // significant perf increase by skipping checking .d.ts files, particularly those in node_modules. Recommended by TS
-    "skipLibCheck": true,
-    // error out if import and file system have a casing mismatch. Recommended by TS
     "forceConsistentCasingInFileNames": true,
-    // ensure that each file can be safely transpiled by babel (etc.) without relying on other imports
     "isolatedModules": true,
-    "downlevelIteration": false,
-    "allowSyntheticDefaultImports": true,
-    "emitDeclarationOnly": true,
-    "types": ["vitest/globals", "vitest/importMeta", "node"],
+    "jsx": "react",
+    "lib": ["DOM", "ESNext"],
+    "module": "esnext",
+    "moduleDetection": "force",
+    "moduleResolution": "bundler",
+    "noEmit": true,
+    "noEmitOnError": true,
+    "noErrorTruncation": true,
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitOverride": true,
+    "noImplicitReturns": true,
+    "outDir": "./dist",
     "paths": {
+      // internal imports in tests only
+      "@internal/*": ["./src/*"],
       "@reduxjs/toolkit": ["./src/index.ts"], // @remap-prod-remove-line
-      "@reduxjs/toolkit/react": ["./src/react/index.ts"], // @remap-prod-remove-line
       "@reduxjs/toolkit/query": ["./src/query/index.ts"], // @remap-prod-remove-line
       "@reduxjs/toolkit/query/react": ["./src/query/react/index.ts"], // @remap-prod-remove-line
-      // internal imports in tests only
-      "@internal/*": ["./src/*"]
-    }
+      "@reduxjs/toolkit/react": ["./src/react/index.ts"] // @remap-prod-remove-line
+    },
+    "resolveJsonModule": true,
+    "rootDir": "./src",
+    "skipLibCheck": true,
+    "sourceMap": true,
+    "strict": true,
+    "target": "esnext",
+    "types": ["node", "vitest/globals", "vitest/importMeta"],
+    "useDefineForClassFields": true,
+    "useUnknownInCatchVariables": true
   }
 }

packages/toolkit/tsconfig.build.json

@@ -2,7 +2,7 @@
   // For building the library.
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
-    "outDir": "dist"
+    "noEmit": false
   },
   "include": ["src"],
   "exclude": [

packages/toolkit/tsconfig.json

@@ -4,8 +4,8 @@
   // we are using during development.
   "extends": "./tsconfig.test.json",
   "compilerOptions": {
-    "skipLibCheck": true,
-    "rootDir": "."
+    "rootDir": "./"
   },
-  "include": ["."]
+  "include": ["."],
+  "exclude": ["dist", "scripts/issue-triage"]
 }

packages/toolkit/tsconfig.test.json

@@ -2,12 +2,7 @@
   // For runtime and type tests during CI.
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
-    "emitDeclarationOnly": false,
-    "noEmit": true,
-    "rootDir": "./src",
-    "jsx": "react-jsx",
-    "skipLibCheck": true,
-    "noImplicitReturns": false
+    "jsx": "react-jsx"
   },
   "exclude": ["dist"],
   "include": [

packages/toolkit/vitest.setup.ts

@@ -41,6 +41,8 @@ const areErrorsEqual = (actualError: unknown, expectedError: unknown) => {
       actualError.message === expectedError.message
     )
   }
+
+  return undefined
 }
 
 expect.addEqualityTesters([areErrorsEqual])