#13587: addTopDecls fails with typed Template Haskell -------------------------------------+------------------------------------- Reporter: tmcdonell | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Template Haskell | Version: 8.2.1-rc1 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 bgamari): My suspicion is that this is a result of the rather hacky way that we do dependency analysis for typed splices (where we just add everything in scope to the free variable set of the splice; see `Note [Free variables of typed splices]` in `RnSplice`) coupled with the fact that we don't run typed splices until type-checking (see `rnSpliceExpr`). This means that the declaration generated by the splice isn't present in the free variable set associated with the splice, causing us to fail during typechecking. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13587#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler