Implement raiph's our-scalar suggestion

This moves the actual Log role to Log::Abstract, but the user-facing
interface remains the same due to some EXPORT magic. This little bit of
magic makes manual inclusion of Log::Level redundant as well.

The suggestion itself concerns a new addition to the module,
$Log::instance. This is a "shared" variable in that one part of your
program can set it, and others parts can use it wherever. This is
potentially favourable over using $*LOG, especially in multi-threaded
programs.

1 files changed, 10 insertions, 24 deletions

diff --git a/lib/Log.rakumod b/lib/Log.rakumod
index 542a732..c818217 100644
--- a/lib/Log.rakumod
+++ b/lib/Log.rakumod
@@ -2,32 +2,18 @@
 
 use v6.d;
 
+use Log::Abstract;
 use Log::Level;
 
-unit role Log;
-
-# Methods for handling plain string messages.
-multi method emergency (Str:D $) { * }
-multi method alert (Str:D $) { * }
-multi method critical (Str:D $) { * }
-multi method error (Str:D $) { * }
-multi method warning (Str:D $) { * }
-multi method notice (Str:D $) { * }
-multi method info (Str:D $) { * }
-multi method debug (Str:D $) { * }
-
-# Methods for handling formatted messages.
-multi method emergency (Str:D $, *@) { * }
-multi method alert (Str:D $, *@) { * }
-multi method critical (Str:D $, *@) { * }
-multi method error (Str:D $, *@) { * }
-multi method warning (Str:D $, *@) { * }
-multi method notice (Str:D $, *@) { * }
-multi method info (Str:D $, *@) { * }
-multi method debug (Str:D $, *@) { * }
-
-# Method for configuration
-multi method add-output (IO::Handle:D $, Int() $ where Log::Level::Emergency ≤ * ≤ Log::Level::Debug, Callable $?) { * }
+sub EXPORT
+{
+	%(
+		'Log' => Log::Abstract,
+		'Log::Level' => Log::Level,
+	)
+}
+
+our $instance;
 
 =begin pod