Exporting function with property declaration causes invalid type emit

[AnyhowStep]

TypeScript Version: 3.5.1

Search Terms:

function property declaration, emit, multiple

Code

export function foo () {

}
foo.x = 32;

export function bar () {

}
bar.x = 32;

Expected behavior:

Not have default exports

Actual behavior:

declare function foo(): void;
declare namespace foo {
    var x: number;
}
/*
A module cannot have multiple default exports.ts(2528)
__test-function.d.ts(10, 16): Another export default is here.
*/
export default foo;
declare function bar(): void;
declare namespace bar {
    var x: number;
}
/*
A module cannot have multiple default exports.ts(2528)
__test-function.d.ts(5, 16): The first export default is here.
*/
export default bar;

Playground Link:

Playground does not generate .d.ts files

Related Issues:

[AnyhowStep]

Actually, even having just one will make it use export default, which isn't what I want at all =/

[AnyhowStep]

The solution seems to be,

function foo () {

}
foo.x = 32;

function bar () {

}
bar.x = 32;

export {foo, bar}

[AnyhowStep]

It seems like this does not happen with TS 3.3

[fatcerberus]

Related to, and possibly a duplicate of #31676, it looks like.

[AnyhowStep]

Ah, yes, it is a duplicate of that. Thank you for finding it!