Cannot handle export ts type about rollup-plugin-swc HOT 2 CLOSED

Thanks for the report, I will look into this!

from rollup-plugin-swc.

@huozhi

I've found the cause of the issue. But as it stands, it seems unfixable:

• SWC operates as a single file transformer without the cross-file functionality. When transforming src/index.ts, SWC doesn't know the existence of src/types.ts.
• Rollup, serving as a bundler, acknowledges every file's existence but doesn't work with the type information.
• Consequently, neither SWC nor Rollup can determine whether IConfig in import { IConfig } from './types' is a type or a value.

You can workaround the issue by explicitly declaring IConfig as a type-only import:

import type { IConfig } from './types';
// or
import { type IConfig } from './types';

This can be enforced / auto-fixed through the use of the @typescript-eslint/eslint-plugin with the @typescript-eslint/consistent-type-imports rule:

"@typescript-eslint/consistent-type-imports": ["error", { prefer: "type-imports" }]

from rollup-plugin-swc.