microsoft / microsoft/TypeScript
Typescript gets confused when renaming by only changing filename case of imported file on Windows
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Nobody has claimed this yet.
Bug
Domain: Module Resolution
Needs Human Review
Needs More Info
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Description
🔎 Search Terms
windows rename already included
🕗 Version & Regression Information
- This is the behavior in every version I tried, and I reviewed the FAQ for entries about _________
- I was unable to test this on prior versions because _______
⏯ Playground Link
No response
💻 Code
file src/vector.js
export default class Vector {}
file test/vector.test.js
import Vector from '../src/vector.js'
new Vector();
now rename the file
mv src/vector.js src/Vector.js
and update the file test/vector.test.js
import Vector from '../src/Vector.js'
new Vector();
🙁 Actual behavior
There is an error message:
🙂 Expected behavior
No error message, as the imported file name matches the actual file name.
Additional information about the issue
tsconfig.json
{
"compilerOptions": {
"target": "ES2017",
"module": "commonjs",
"lib": ["es2017", "dom", "DOM.Iterable"],
"allowJs": true,
"checkJs": true,
"skipLibCheck": true,
"declaration": true,
"noEmit": true,
"strict": true,
"baseUrl": ".",
"typeRoots": [
"./node_modules/@types",
],
"esModuleInterop": true
},
"include": [
"src/**/*.js",
"test/**/*.js",
]
}
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the reproduction using src/vector.js, test/vector.test.js, the case-only rename to src/Vector.js, and the supplied tsconfig.json on Windows. Trace the compiler's handling of the updated import and verify that the case-matched import produces no error after the rename.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, typescript
- Domain
- compilers, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100