GHC source plugin that instruments Haskell code to include tracing calls.

You can enable this plugin in different ways:

• Globally, by passing the -fplugin flag to GHC:

 -fplugin=Test.Mutagen.Tracer.Plugin

• Per module, by adding the following pragma to the top of the module:

 {-# OPTIONS_GHC -fplugin=Test.Mutagen.Tracer.Plugin #-}

• Per function, by adding the TRACE annotation pragma to the function (in addition to enabling the plugin globally or per-module):

 {-# ANN myFunction TRACE #-}