[GHC] #7959: Panic on deriving nullary typeclass
#7959: Panic on deriving nullary typeclass -------------------------------+-------------------------------------------- Reporter: monoidal | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.7 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Compile-time crash | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- {{{ {-# LANGUAGE NullaryTypeClasses #-} class C }}} Both `data A deriving C` and `deriving instance C` cause panic. Patch attached. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#7959: Panic on deriving nullary typeclass -------------------------------+-------------------------------------------- Reporter: monoidal | Owner: Type: bug | Status: patch Priority: normal | Component: Compiler Version: 7.7 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Compile-time crash | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by monoidal): * status: new => patch -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#7959: Panic on deriving nullary typeclass ---------------------------------+------------------------------------------ Reporter: monoidal | Owner: simonpj Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Compile-time crash Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by simonpj): * owner: => simonpj * difficulty: => Unknown -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#7959: Panic on deriving nullary typeclass ---------------------------------+------------------------------------------ Reporter: monoidal | Owner: simonpj Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Compile-time crash Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Comment(by krz.gogolewski@…): commit 967f746994802f50011a03c983417a6fca18de27 {{{ Author: Krzysztof Gogolewski <krz.gogolewski@gmail.com> Date: Mon Jun 3 17:07:23 2013 +0200 Fix panic on deriving a nullary typeclass (#7959) compiler/typecheck/TcDeriv.lhs | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#7959: Panic on deriving nullary typeclass -----------------------------------------+---------------------------------- Reporter: monoidal | Owner: simonpj Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Compile-time crash | Difficulty: Unknown Testcase: deriving/should_fail/T7959 | Blockedby: Blocking: | Related: -----------------------------------------+---------------------------------- Changes (by simonpj): * status: patch => closed * testcase: => deriving/should_fail/T7959 * resolution: => fixed -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7959#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
participants (1)
-
GHC