GHC.Records
| Copyright | (c) Adam Gundry 2015-2016 |
|---|---|
| License | see libraries/base/LICENSE |
| Maintainer | [email protected] |
| Stability | internal |
| Portability | non-portable (GHC extensions) |
| Safe Haskell | Safe-Inferred |
| Language | Haskell2010 |
Description
This module defines the HasField class used by the OverloadedRecordFields extension. See the <https://gitlab.haskell.org/ghc/ghc/wikis/records/overloaded-record-fields wiki page> for more details.
class HasField x r a | x r -> a where Source
Constraint representing the fact that the field x belongs to the record type r and has field type a. This will be solved automatically, but manual instances may be provided as well.
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.10.2/docs/html/libraries/base-4.14.1.0/GHC-Records.html