Duplicate method declarations in generated declaration file for JS file #49200
Description
Bug Report
TypeScript is producing duplicate methods in the generated declaration file of a JavaScript file.
🔎 Search Terms
emit allowJs duplicate methods
🕗 Version & Regression Information
Tried it in two:
- 4.8.0-dev.20220521
- 4.5.5
💻 Code
main.js (not .ts... works fine in .ts):
export default {
methods: {
handleScroll() {}
}
};tsconfig.json:
{
"compilerOptions": {
"target": "es2016",
"declaration": true,
"emitDeclarationOnly": true,
"allowJs": true,
"module": "commonjs",
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": true,
"skipLibCheck": true
}
}🙁 Actual behavior
main.d.ts:
declare namespace _default {
namespace methods {
function handleScroll(): void;
function handleScroll(): void;
}
}
export default _default;🙂 Expected behavior
declare namespace _default {
namespace methods {
function handleScroll(): void;
}
}
export default _default;