Re: [GHC] #12921: initTc: unsolved constraints

#12921: initTc: unsolved constraints -------------------------------------+------------------------------------- Reporter: jlp | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: #13106 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * cc: simonpj (added) Comment: Simon's commit 1ef274298978369e2e07b5c43e635a5ca529a0af: {{{ From 1ef274298978369e2e07b5c43e635a5ca529a0af Mon Sep 17 00:00:00 2001 From: Simon Peyton Jones Date: Thu, 13 Oct 2016 12:24:53 +0100 Subject: [PATCH] Further improve error handling in TcRn monad This patch builds on the one for Trac #12124, by dealing properly with out-of-scope "hole" errors. This fixes Trac #12529. The hard error coming from visible type application is still there, but the out-of-scope error is no longer suppressed. (Arguably the VTA message should be suppressed somehow, but that's a battle for another day.) }}} caused this (and #13106). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12921#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler