#12457: Deriving should be (more closely) integrated with other metaprogramming methods -------------------------------------+------------------------------------- Reporter: mpickering | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by mpickering): Richard comments:
* Template Haskell: Not portable. Staging issues make it hard to use as a drop-in replacement for the `deriving` keyword
I do not understand "not portable" here. Do you mean that some architectures don't support TH?
What staging issues?
I'm imagining here having `deriving Blah` be surface syntax that desugars into some TH splice. You keep the nice user-facing syntax, but make the deriving mechanism itself specified in TH code.
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12457#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler