Elm-format: Negative hex numbers get corrupted

[Janiczek]

Screencast

-0xFFFFFFFF (valid Elm) becomes 0xFFFFFFFF00000001 (invalid Elm).

-(0xFFFFFFFF) doesn't help.
(-0xFFFFFFFF) doesn't help.
The only workaround is (negate 0xFFFFFFFF).

[avh4]

Thanks for this! I expect to get a look at this in the next week or two. Do you happen to know what the max hex int allowed by elm-compiler is?

[Janiczek]

Looks like it breaks down around
0x7FFFFFFFFFFFFFFF :heavy_check_mark:
0x8000000000000000 :x:

[avh4]

Ah, okay, looks like any negative hex int will be converted into a positive hex int, with 16 digits, which Elm 0.19 doesn't allow.

[avh4]

Fixed in https://github.com/avh4/elm-format/pull/697, and will be in elm-format 0.8.4

[avh4]

0.8.4 is now released with this fix: https://github.com/avh4/elm-format/releases/tag/0.8.4