Cache importFixes/fixMissingImport in getCodeFixes requests

Search Terms

• getCodeFixes cache

Suggestion

In tsserver, the completionInfo request benefits from a cache of import suggestions.

https://github.com/microsoft/TypeScript/blob/d156bb805eba314be2fbe86e4c4ca0179380580e/src/services/completions.ts#L1627-L1631

Could the getCodeFixes request be extended to use a suggestion imports cache as well?

https://github.com/microsoft/TypeScript/blob/2428ade1a91248e847f3e1561e31a9426650efee/src/services/codefixes/importFixes.ts#L234

Both call codeFixes.forEachExternalModuleToImportFrom, which can be very slow in a large project. Thanks!

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, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.