| Copyright | (c) Adam Gundry 2015-2016 | 
|---|---|
| License | see libraries/base/LICENSE | 
| Maintainer | cvs-ghc@haskell.org | 
| Stability | internal | 
| Portability | non-portable (GHC extensions) | 
| Safe Haskell | Safe-Inferred | 
| Language | Haskell2010 | 
GHC.OverloadedLabels
Description
This module defines the IsLabel class used by the
 OverloadedLabels extension.  See the
 wiki page
 for more details.
When OverloadedLabels is enabled, if GHC sees an occurrence of
 the overloaded label syntax #foo, it is replaced with
fromLabel @"foo" :: alpha
plus a wanted constraint IsLabel "foo" alpha.
Note that if RebindableSyntax is enabled, the desugaring of
 overloaded label syntax will make use of whatever fromLabel is in
 scope.