[krzkaczor]

I assure you that I know how static analysis work but how could you rename something that doesn't have any name? How could you perform "rename" refactoring on `export default function () {...}` since this expression is not associated with any symbol.

It's clear for me that in this case you could talk only on refactoring like "rename all default imports to:" This is different than simply renaming a symbol and I don't know IDE that supports this operation.

[seniorsassycat]

Your editor knows the symbol of every value referencing the default export. Try go-to-references on a default export.

If your IDE doesn't support rename-references that's your IDE's deficiency - not default exports.