chore: resolve lint issues

Author: Codex-

lib/index.spec.ts

@@ -40,6 +40,7 @@ describe("TypeScriptLoader", () => {
         try {
           cfg.load(path.resolve(fixturesPath, "invalid.fixture.ts"));
           fail("Should fail to load invalid TS");
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
         } catch (error: any) {
           expect(error?.name).toStrictEqual("TypeScriptCompileError");
         }
@@ -72,6 +73,7 @@ describe("TypeScriptLoader", () => {
         try {
           await cfg.load(path.resolve(fixturesPath, "invalid.fixture.ts"));
           fail("Should fail to load invalid TS");
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
         } catch (error: any) {
           expect(error?.name).toStrictEqual("TypeScriptCompileError");
         }
@@ -104,7 +106,7 @@ describe("TypeScriptLoader", () => {
 
       expect(() =>
         cfg.load(path.resolve(fixturesPath, "invalid.fixture.ts")),
-      ).toThrowError();
+      ).toThrow();
     });
   });
 });

lib/loader.spec.ts

@@ -37,7 +37,9 @@ describe("TypeScriptLoader", () => {
 
   it("should fail on parsing an invalid TS file", () => {
     const filePath = path.resolve(fixturesPath, "invalid.fixture.ts");
-    expect(() => loader(filePath, readFixtureContent(filePath))).toThrowError();
+    expect((): unknown =>
+      loader(filePath, readFixtureContent(filePath)),
+    ).toThrow();
   });
 
   it("should use the same instance of jiti across multiple calls", () => {
@@ -66,9 +68,9 @@ describe("TypeScriptLoader", () => {
 
     beforeEach(() => {
       stub = jest.spyOn(jiti, "default").mockImplementation((() => () => {
-        // eslint-disable-next-line @typescript-eslint/no-throw-literal
+        // eslint-disable-next-line @typescript-eslint/only-throw-error
         throw unknownError;
-      }) as any);
+      }) as never);
 
       loader = TypeScriptLoader();
     });

lib/loader.ts

@@ -5,9 +5,10 @@ import { TypeScriptCompileError } from "./typescript-compile-error.js";
 
 export function TypeScriptLoader(options?: JITIOptions): Loader {
   const loader = jiti("", { interopDefault: true, ...options });
-  return (path: string) => {
+  return (path: string): unknown => {
     try {
-      const result = loader(path);
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+      const result: { default?: unknown } = loader(path);
 
       // `default` is used when exporting using export default, some modules
       // may still use `module.exports` or if in TS `export = `