Const() stripped from string literals [breaking]

[piaste]

Issue created from fantomas-online

Code

type T = SomeTypeProvider<const(" string literal " + REUSED_ LITERAL_STRING)> 

Result

type T = SomeTypeProvider<(" string literal " + REUSED_ LITERAL_STRING)>

Problem description

const() is a fairly obscure F# keyword that allows you to create an inline string literal by composing multiple string literals together (instead of declaring a separate let [<Literal>] value = ...).

It is most useful for type provider parameters, which specifically require string literals.

Fantomas deletes it, which breaks such code.

Extra information

• The formatted result breaks by code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas Master at 04/01/2021 13:51:56 - a16da08

Default Fantomas configuration

[nojaf]

Hello piaste, thanks for reporting this issue.
I had no idea this even existed.
My fix for this might be a bit naive as it is based only on this one example.
Please report any further issues you might discover.

[piaste]

Thanks, I tested it on our codebase and the issue is fixed.