dict() type removed in erlang 18.0

[seriyps]

Since dict() type was deprecated in erlang 17.0 and removed in 18.0 (in favour of dict:dict()), library now won't compile on 18.0.

At the same time, we can't just replace all dict() with dict:dict(), since then it won't compile on R16.

AFAIK, there are 2 solutions used:

• Add some release version detection to rebar.config and add conditional macroses like -ifdef BUILTIN_DICT. -type dictionary() :: dict(). -else. -type dictionary() :: dict::dict(). -end.
• Just temporarily replace strict dict() typespec to some relaxed one like any() or tuple() (since dict is a tuple inside)

Any thoughts?

[jdavisp3]

Hm, the macro seems pretty simple to implement, what do you think?

I'm surprised there's nothing built-in provided for this problem.

[seriyps]

I've seen examples of how other people work around this problem:

https://github.com/devinus/poolboy/blob/master/src/poolboy.erl#L15 + https://github.com/devinus/poolboy/blob/master/rebar.config#L3

or

https://github.com/eproxus/meck/blob/master/src/meck_proc.erl#L50-L54 + https://github.com/eproxus/meck/blob/master/rebar.config#L4

[jdavisp3]

Oh, those look simple enough.