#12389: Limit duplicate export warnings for datatypes -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature request | Status: new Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: #11959 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): Sure. That would solve (much of) the problem. I'd want leading commas too, because I tend to prefer a leading-comma style. And I'd want to silence the warning from duplicate constructors/patterns within the list. Because I could, hypothetically, have {{{#!hs Foo ( #if Condition1 Foo, Bar #endif #if Condition2 , Bar, Baz #endif ) }}} and wouldn't want to have to get fancy with the CPP if `Condition1` and `Condition2` both happen to hold. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12389#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler