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.d.ts files should be forbidden from importing .ts files

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
55/100
Issue type
Feature
Clarity
Clearly specified
Activity status
Stale
Tech stack
typescript
Domain
build-system

Research direction

In types/adobe__pdfservices-node-sdk, run npm test adobe__pdfservices-node-sdk after renaming client-config.d.ts to client-config.ts as shown. Trace the validation around Index.d.ts and the renamed client-config.ts, then make the test report the expected import error instead of the current compile error.

Written by the indexing model from the issue text.

Description

.d.ts files should not be able to import .ts files; .ts files are supposed to be only for testing. But it's too easy to make a mistake and use .ts for a file intended for shipping types. See for example https://discord.com/channels/508357248330760243/757992230077333655/1086956594736148511

To repro:

cd $dt/types/adobe__pdfservices-node-sdk
git mv client-config.d.ts client-config.ts
npm test adobe__pdfservices-node-sdk

Expected: Error "Index.d.ts can't import from client-config.ts because it's a .ts file"
Actual: Compile error because client-config.ts uses syntax that is illegal in .ts (function signature without declare or following implementation signature).

Dominant language
TypeScript
Stars
423
Forks
237
Avg merge
18h 18m
Merged PRs (30d)
11

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