Invalid output for async arrow function (expression)

[adrianheine]

async (a) => {}

is transpiled to

!functionasync (a) {}

However,

const x = async (a) => {}

is also wrong:

var x = function async (a) {}

[shirotech]

This happens because async is not supported? Please see #125 I have made a pull request to support this based on #12

[adrianheine]

No, that's not true. bublé cannot transpile async, but it should already be able to correctly pass it through.

[shirotech]

Okay I get what you’re saying. In this case, can you please give examples of expected output? Would buble transpile partially leaving async intact syntactically? Or whenever there’s async code it would completely ignore it?

[aleclarson]

@Van-Nguyen It should transpile the arrow function, yet preserve the async keyword.

[adrianheine]

Related: async a => {} makes bublé hang. Edit: That's #108.