Tsconfig option to disable .tsx extension lookup in module resolution

Suggestion

Running tsc --traceResolution in my project I found that Typescript was looking up .tsx files for every module resolution. That's very inconvenient, first because .tsx extension serves a very specific domain, second because by elliminating hundreds or maybe thousands of (think of a really big project) unecessary stat() syscalls the build time would probably speed up a bit, or maybe considerably.

🔍 Search Terms

• tsx
• module resolution

✅ Viability Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, new syntax sugar for JS, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

Commencez par tsc --traceResolution afin d’observer les sondes actuelles de résolution des modules pour les fichiers .tsx. Suivez les points d’entrée de la résolution des modules et déterminez comment une option de tsconfig contrôlerait ces sondes sans modifier les valeurs par défaut existantes. Le travail est considéré comme terminé lorsque l’option supprime la recherche de .tsx lorsqu’elle est activée, tandis que la résolution normale reste inchangée dans les autres cas.