Re: [GHC] #16096: let x = ... and x = ... are not the same in GHCi

#16096: let x = ... and x = ... are not the same in GHCi -------------------------------------+------------------------------------- Reporter: osa1 | Owner: osa1 Type: bug | Status: closed Priority: normal | Milestone: 8.8.1 Component: GHCi | Version: 8.6.3 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | ghci/should_run/T16096 Blocked By: | Blocking: Related Tickets: #11606 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ömer Sinan Ağacan ): In [changeset:"a34ee61545930d569d0dbafb3a4a5db3a7a711e5/ghc" a34ee615/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="a34ee61545930d569d0dbafb3a4a5db3a7a711e5" Refactor GHCi UI to fix #11606, #12091, #15721, #16096 Instead of parsing and executing a statement or declaration directly we now parse them first and then execute in a separate step. This gives us the flexibility to inspect the parsed declaration before execution. Using this we now inspect parsed declarations, and if it's a single declaration of form `x = y` we execute it as `let x = y` instead, fixing a ton of problems caused by poor declaration support in GHCi. To avoid any users of the modules I left `execStmt` and `runDecls` unchanged and added `execStmt'` and `runDecls'` which work on parsed statements/declarations. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16096#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler