Re: New ABI NSConstantString

[Ivan Vučica]

On Sat, Apr 7, 2018, 09:50 David Chisnall <address@hidden> wrote:

My current plan is to make the format support ASCII, UTF-8, UTF-16, and UTF-32, but only generate ASCII and UTF-16 in the compiler and then decide later if we want to support generating UTF-8 and UTF-32.  I also won’t initialise the hash in the compiler initially, until we’ve decided a bit more what the hash should be.

Emojis don't fit UTF-16. Even if one dismisses CJK, ancient scripts etc, constant strings are not absolutely unlikely to contain emojis.

Not supporting UTF-8 for internal storage may be reasonable, but not supporting UTF-32 for strings that require it seems like a bug.