"export { default } from" syntax doesn't error when no default export present

[ianschmitz]

TypeScript Version: 3.7.3

Search Terms: export default

Code

Does not throw an error:

// a.ts
// whoops this should be a named export!
export { default } from "./b"

// b.ts
export const foo = "bar"

But this does throw an error:

// a.ts
// Error: Module has no default export
import foo from "./b"
export default foo;

// b.ts
export const foo = "bar"

Expected behavior:
Shorthand export { default } from syntax should error in the same way import foo from syntax does when no default export is present.

Actual behavior:
Shorthand export { default } from does not error as expected. I noticed this when debugging TSServer due to broken intellisense suggestions. The suggestions would not appear anywhere in our project, due to TSServer error "Alias targets of default exports must have a parent".

Playground Link:

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