#11606: name shadowing warnings don't trigger on standalone declarations in ghci -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: rwbarton Type: bug | Status: new Priority: high | Milestone: 8.0.1 Component: GHCi | Version: 7.10.3 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: | -------------------------------------+------------------------------------- Changes (by rwbarton): * owner: => rwbarton Comment: I realized the reason is that we never test names defined at top level for shadowing (shadowing names imported from other modules). So the plan is this. Add a flag `-Wtop-level-name-shadowing` that checks top-level bindings for shadowing (like defining `id`). Then make it default in the ghci interactive flags (only). (No, I do not suggest making it part of `-Wall`.) Validating that currently, then will post on Phab. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11606#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler