#15646: ghci takes super long time to find the type of large fractional number -------------------------------------+------------------------------------- Reporter: Johannkokos | Owner: | JulianLeviston Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: GHCi | Version: 8.4.3 Resolution: | Keywords: newcomer Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by JulianLeviston): AFAICS, the only use-sites for `mkFractionalLit` are in HsSync/Convert.hs for the above function and also `cvtLit`. Does anyone have any thoughts about what a good approach to doing this might be? Should I be changing `mkFractionalLit` to `Integer -> Integer -> FractionalLit` or leave it as `Real a => a -> FractionalLit` as it already is? (the latter would imply doing some conversion to the number, the former would indicate the same conversion being moved up into the TH related code). Thoughts? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15646#comment:28 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler