#7788: Recursive type family causes <<loop>> -------------------------------------+------------------------------------- Reporter: shachaf | Owner: simonpj Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Compiler (Type | Version: 7.6.2 checker) | Keywords: Resolution: | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: Incorrect result | Test Case: at runtime | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by simonpj): Richard, for the evaluation-depth thing, I think that all that is necessary is: * Call `bumpSubGoalDepth` on the `fe_loc` field of `fmode` in `try_to_reduce` in `TcFlatten.flatten_exact_fam_app_fully`. * And call `subGoalDepthExceeded` in the same function. Or the depth-exceeded check could be in `flatten_one`. Might you do this? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7788#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler