When utilizing high order functions, TypeScript erroneously produces unnecessary declaration files

I've been working on generating d.ts files for my library, and below is the content of my tsconfig.json.

{
  "compilerOptions": {
    "outDir": "dist",
    "declaration": true,
    "declarationDir": "dist/typings",
    "target": "es5",
    "diagnostics": true,
    "lib": [
      "es5",
      "es6",
      "dom"
    ],
    "noEmitOnError": true,
    "noImplicitAny": true,
    "noImplicitThis": false,
    "noUnusedParameters": false,
    "noUnusedLocals": false,
    "experimentalDecorators": true
  },
  "include": [
    "src/**/*",
    "typings/**/*.d.ts"
  ],
  "exclude": [
    "node_modules"
  ]
}

Additionally, here's a snippet of the source code:

// script.ts
import { Application } from "../application";
export class ScriptType { }
export function createScript(ScriptConstructor: typeof ScriptType) {
    return (app: Application) => {
        // do something;
        return ScriptConstructor;
    }
}

// orbitCamera.ts
import { createScript, ScriptType } from "../script";
class OrbitCamera extends ScriptType { }
export default createScript(OrbitCamera);

After running tsc to generate d.ts, I encountered the following output:

$ cat dist/typings/scripts/camera/orbitCamera.d.ts
import { ScriptType } from "../script";
export declare class OrbitCamera extends ScriptType {
...
}
declare const _default: (app: import("../../../../../../../Users/u/Projects/p/src/application").Application) => typeof ScriptType;
export default _default;

However, this result seems to be problematic as referencing this generated d.ts file in another project could lead to a Cannot find name 'import' error.

How can this issue be resolved? Any suggestions or solutions would be greatly appreciated. Thank you.

Answer №1

Reverting back to tsc version 2.9.1 fixed the issue and now everything is functioning properly once more.

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