Why does the user require consulting parser.y.pp? Things like the Let constructor obviously have a Let keyword and an In keyword. Things like instance declaration obviously have Instance and Where. They seem fairly
#9628: Add Annotations to the AST to simplify source to source conversions -------------------------------------+------------------------------------- Reporter: alanz | Owner: alanz Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.9 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: D297 | -------------------------------------+------------------------------------- Comment (by alanz): Replying to [comment:20 NeilMitchell]: predictable, and if you do want to comment it, that could be as short as "-- instance ... [where]". Or do you have in mind nodes which wouldn't be as clear, or places where the thing you are indexing isn't so obviously a keyword? Some of the structures are nested quite deeply, an/or reused in multiple roles. But I think anyone working at the detail level of the annotations is going to be looking closely at the relationship between the source, the parse tree and the annotations anyway, so it should not be a problem. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9628#comment:22 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler