microsoft / microsoft/TypeScript

tsconfig paths not work if dir name start with dot.

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#36,922 4 comments 6 reactions 0 assignees View on GitHub

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Bug Domain: Module Resolution Needs Human Review Needs More Info
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Description

TypeScript Version: 3.7.3

Search Terms:

Code

./.temp/test

export enum Test {
  test
}

The following code does not work

import { Test } from '@temp/test'
paths: {
"@temp/*": [
        "./.temp/*"
      ]
}

Expected behavior:
import not error tips.
Actual behavior:
image

Playground Link:

Related Issues:

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the import error with the shown enum, @temp/* path mapping, and ./.temp/* target in TypeScript 3.7.3. Trace the tsconfig paths resolution entry point and add regression coverage for a directory whose name starts with a dot; done means the import resolves without an error.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
compilers
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
55/100

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