Crash when Credo.Check.Design.AliasUsage.find_aliases/2 calls to_string

[KronicDeth]

Versions

Elixir: 1.2.3
Credo: 0.3.8

Error

Checking 51 source files ...
** (EXIT from #PID<0.47.0>) an exception was raised:
    ** (Protocol.UndefinedError) protocol String.Chars not implemented for {:__MODULE__, [line: 7], nil}
        (elixir) lib/string/chars.ex:3: String.Chars.impl_for!/1
        (elixir) lib/string/chars.ex:17: String.Chars.to_string/1
        (elixir) lib/enum.ex:1473: Enum."-reduce/3-lists^foldl/2-0-"/3
        (elixir) lib/enum.ex:1058: Enum.join/2
        lib/credo/check/design/alias_usage.ex:119: Credo.Check.Design.AliasUsage.find_aliases/2
        (elixir) lib/macro.ex:188: anonymous fn/4 in Macro.do_traverse/4
        (elixir) lib/enum.ex:1151: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3
        (elixir) lib/enum.ex:1151: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3

[rrrene]

👍 thx for reporting! will release a fix shortly!

[rrrene]

@KronicDeth v0.3.9 contains a fix for this. Can you confirm?