Roslyn: FormattableString and IFormattable should win over string in overload resolution

Created on 22 Jan 2016 · 3Comments · Source: dotnet/roslyn

It's a terrible design to have string win over FormattableString and IFormattable, this makes using FormattableString for logging libraries impossible. Please fix this issue.

Area-Language Design Resolution-Won't Fix

Source

AceHack

👍2

Most helpful comment

This is a big hole in the design then, it makes this feature much less useful. That combined with the fact that the default is Current Culture makes this very only useful in very niche situation. :(

AceHack on 27 Jan 2016

👍6

All 3 comments

We cannot "fix" this issue - it would be a breaking change. There is also no reasonable way to fix it, as the conversion from an interpolated string literal to string is an identity conversion.

gafter on 26 Jan 2016

😕1

This is a big hole in the design then, it makes this feature much less useful. That combined with the fact that the default is Current Culture makes this very only useful in very niche situation. :(

AceHack on 27 Jan 2016

👍6

Yes, it was _intended_ to be very useful only in a very niche situation. It is _supposed_ to act like a string for most purposes.

gafter on 27 Jan 2016

Was this page helpful?

0 / 5 - 0 ratings