monad-logger

A class of monads which can log messages. https://github.com/kazu-yamamoto/logger

Version on this page:0.3.20
LTS Haskell 8.6:0.3.21
Stackage Nightly 2017-03-28:0.3.22
Latest on Hackage:0.3.22
MIT licensed by Michael Snoyman
Maintained by michael@snoyman.com

Module documentation for 0.3.20

monad-logger

A monad transformer approach for logging.

This package provides Template Haskell functions for determining source code locations of messages.

Changes

0.3.22

  • Added runFileLoggingT.

0.3.21

  • Reimplemented Functor & Applicative for LoggingT & NoLoggingT #125 #126

0.3.20.2

  • Support for GHC 8.2

0.3.20.1

  • Fix #106 by correcting the default signature for MonadLoggerIO #108

0.3.20

  • Generalize the type of unChanLoggingT #104

0.3.19

  • Add CallStack-based functions and Control.Monad.Logger.CallStack module

0.3.18

  • Added logTHShow and logDebugSH, logInfoSH, etc. Accepts an argument of Show a => a instead of just Text.

0.3.17

  • log to a chan #74

0.3.16

  • Provide default monadLoggerLog implementation #72

0.3.15

  • Expose Loc constructor #70

0.3.14

  • Don't include source location for defaultLoc #69

0.3.13.1

  • Allow fast-logger 2.3

0.3.13

  • Re-export LogStr from fast-logger #56
  • Added filterLogger

0.3.12

  • Use transformers-compat to provide universal ExceptT support #53

0.3.11.1

Add support for monad-control 1.0 #52

0.3.11

Add missing MonadState and MonadWriter instances for NoLoggingT #51

0.3.10.1

Remove unnecessary extra newline in log messages.

0.3.10

Introduce the MonadLoggerIO typeclass.

0.3.9

Add missing MonadError NoLoggingT instance #49

0.3.8

Simplify constraint on MonadLogger (NoLoggingT m) from MonadIO m to Monad m Github issue #48.

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