Forbid default import from "typescript"

Author: fisker

eslint.config.js

@@ -56,6 +56,16 @@ export default tseslint.config(
 			},
 		},
 		rules: {
+			"no-restricted-syntax": [
+				"error",
+				// Forbid default import from "typescript"
+				{
+					message: 'Default import from "typescript" is not allowed.',
+					selector:
+						'ImportDeclaration[source.value="typescript"] > ImportDefaultSpecifier',
+				},
+			],
+
 			// These off-by-default rules work well for this repo and we like them on.
 			"logical-assignment-operators": [
 				"error",

src/types/typeGuards/single.test.ts

@@ -1,5 +1,6 @@
 import * as ts from "typescript";
 import { describe, expect, expectTypeOf, it } from "vitest";
+
 import { createSourceFileAndTypeChecker } from "../../test/utils";
 import {
 	isConditionalType,