Would flow type annotations be reasonable?

[StoneCypher]

Facebook has recently released a tool called Flow, mostly around type checking, which among other things introduces a transformation which consumes the syntaxes

function foo(bar, baz: integer, quux: string) { ... }

and

function foo(bar, baz: integer, quux: string): string { ... }

This is a potentially significant tool, but eslint barks at it (as well it should.)

Is it possible to optionally support letting these notations slide?

[nzakas]

Not at this time, we'd need a parser that supports the syntax.

[StoneCypher]

Is that an issue for the esprima folks then?

If the parser supports it, would you reconsider?

[StoneCypher]

Er, make that acorn

[StoneCypher]

Oh my, it looks like the acorn-jsx guy is already interested 😄

acornjs/acorn-jsx#8

[nzakas]

We don't have any plans to support type annotations. If a parser is available after we hit 1.0.0, we can reevaluate at that time.