SkipLibCheck isn't working on erasableSyntaxCheck

[wparad]

🔎 Search Terms

When importing a library that defines enums and namespaces in an index.d.ts file, even without importing enums or namespaces, the erasableSyntaxOnly throws an error from inside the library index.d.ts file.

This feels like a bug.

🕗 Version & Regression Information

All?

⏯ Playground Link

https://stackblitz.com/edit/vitejs-vite-tj46fvnq?file=package.json

💻 Code

🙁 Actual behavior

Syntax is not allowed.

🙂 Expected behavior

No error.

Additional information about the issue

No response

[RyanCavanaugh]

https://github.com/Microsoft/TypeScript/wiki/FAQ#the-lib-in-skiplibcheck-refers-to-dts-files

[RyanCavanaugh]

Note that the errors are coming from .ts files

node_modules/@authress/sdk/src/connections/dtos.ts:86:18 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

86 export namespace Connection {
                    ~~~~~~~~~~

node_modules/@authress/sdk/src/connections/dtos.ts:91:17 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

91     export enum TypeEnum {
                   ~~~~~~~~

node_modules/@authress/sdk/src/connections/dtos.ts:139:18 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

139 export namespace ConnectionData {
                     ~~~~~~~~~~~~~~

node_modules/@authress/sdk/src/connections/dtos.ts:144:17 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

144     export enum SupportedContentTypeEnum {
                    ~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/@authress/sdk/src/userPermissions/dtos.ts:143:18 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

143 export namespace GetUserResourcesParams {
                     ~~~~~~~~~~~~~~~~~~~~~~

node_modules/@authress/sdk/src/userPermissions/dtos.ts:148:15 - error TS1294: This syntax is not allowed when 'erasableSyntaxOnly' is enabled.

148   export enum CollectionConfiguration {
                  ~~~~~~~~~~~~~~~~~~~~~~~

[wparad]

Correct, but those files are only referenced by index.d.ts, which means we are back to the same issue.

[RyanCavanaugh]

Lib-ness is not transitive; the check is based only on filename. This package is misconfigured.

[wparad]

Can you point us to some reference docs that explain what the configuration is supposed to be?

[RyanCavanaugh]

Authress/authress-sdk.js#67 is the correct fix so it seems like you already got there

https://www.typescriptlang.org/docs/handbook/declaration-files/publishing.html describes publishing declaration files to npm (not implementation files)