[GHC] #14043: GHC.Stack.callStack throws exception
#14043: GHC.Stack.callStack throws exception -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- This program, {{{#!hs import GHC.Stack main :: IO () main = putStrLn (prettyCallStack $ id (\_ -> callStack) ()) }}} terminates with, {{{ Hi: popCallStack: empty stack }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14043 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14043: GHC.Stack.callStack throws exception -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): The problem appears to be that `callStack` is defined directly in terms of `popCallStack`, which fails on an empty stack. Presumably we should just return an empty stack in this case. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14043#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14043: GHC.Stack.callStack throws exception -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: patch Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3795 Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: new => patch * differential: => Phab:D3795 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14043#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14043: GHC.Stack.callStack throws exception -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: closed Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3795 Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: patch => closed * resolution: => fixed Comment: This was merged. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14043#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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