#14391: Make the simplifier independent of the typechecker -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.3 Resolution: | Keywords: newcomer 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 ulysses4ever): As it seems to stale for a while, I'd like to give it a try. IIUC, the strategy laid by Simon suggests developing a `Tc`-less version of `lookupGlobal`. For this we need to identify ties to `Tc` inside it and then try to cut those. First tie (also spelled by Simon above) is “`tcg_type_env`, which was initialised by `initTcForLookup`”. I looked at `initTcForLookup` and its dependencies, and it seems to me that `tcg_type_env`is initialized with `emptyNameEnv` there. A question: does that mean that corresponding part of the `tcLookupGlobal` which queries `tcg_type_env` is not needed at all and can be omitted in the `Tc`-less version of `lookupGlobal`? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14391#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler