Any updates about this issue? Same error with "@parcel/transformer-typescript-types": "^2.4.1"

Still an issue with "@parcel/transformer-typescript-types": "^2.3.2" unfortunately

a reasonable workaround

import * as StringUtils2 from './utils/StringUtils';
export const StringUtils = {
  ...StringUtils2
}
``

Confirmed I ran in to this issue and it goes away if I comment out my usage of export * as

I tested, and #7315 doesn’t address this issue, unfortunately (although it does fix #7306).

I can confirm the repro - export * as something from "./somewhere" causes the issue above. Its because we assume that if node.exportClause is defined, it will have an elements property.

https://github.com/parcel-bundler/parcel/blob/106939872e15014f45671fa971ad96fee27b2d6d/packages/transformers/typescript-types/src/collect.js#L58-L60

But if you look at the relevant typescript API types, “exportsClause” could be a NamespaceExport type, in which case there will be no elements property

ExportDeclaration (code)

    export interface ExportDeclaration extends DeclarationStatement, JSDocContainer {
        // ...
        /** Will not be assigned in the case of `export * from "foo";` */
        readonly exportClause?: NamedExportBindings;
        // ...
    }

NamedExportBindings (code)

export type NamedExportBindings =
    | NamespaceExport
    | NamedExports
    ;

NamespaceExport (code)

    export interface NamespaceExport extends NamedDeclaration {
        readonly kind: SyntaxKind.NamespaceExport;
        readonly parent: ExportDeclaration;
        readonly name: Identifier
    }

So the issue is that we don’t handle this case, probably because it was released after the initial implementation of @parcel/transformer-typescript-types - in Typescript 3.8 (Feb 2020)

Preliminary results show that changing the line if (node.exportClause) { to if (node.exportClause && node.exportClause.elements) { seems to work as expected. It’s correctly exporting all export * as Module from '...'; I can make a PR if anyone doesn’t see anything wrong with that.

My src/components/index.ts had an export * as Icons from './Icons', and Icons.tsx exported several React components. That alone created issues with the babel transformer, a cryptic error message that unfortunately I didn’t save, so I have been using the typescript-tsc which goes past that. I don’t have the files in hand now, but maybe that’s related?

Yep.

Ah, I missed that comment, thanks!

So at this point this is still an open issue?

After adding tsconfig.json everything works

You can get it working by doing this:

export { default as StringUtils2 } from './utils/StringUtils'

Same error with “@parcel/transformer-typescript-types”: “^2.5.0”

Still an issue with “@parcel/transformer-typescript-types”: “^2.4.0”

I have exactly the same issue as @ranisalt when trying to export an Icons file on my index.ts.

I’ve tried this:

{
	"source": "index.ts",
	"types": "dist/index.d.ts",
	"scripts": {
		"build": "parcel build . --no-cache"
	},
	"dependencies": {
		"parcel": "2.0.0-nightly.579",
		"typescript": "^4.1.5"
	}
}

// index.ts
export * from './components';

// components.ts
export type Foo = string;

but it builds fine. Looks like some code in ./src/components is triggering that error (or you have a different typescript version)?