#14973: Location in GHCi debugger prompt printed twice when default prompt is used -------------------------------------+------------------------------------- Reporter: osa1 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 8.5 Keywords: debugger | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- (Noticed in #8316) Test.hs: {{{#!haskell foo :: [Int] foo = [ 1 .. 10 ] }}} Reproducer: {{{ $ ghc-stage2 --interactive -ignore-dot-ghci Test.hs GHCi, version 8.5.20180325: http://www.haskell.org/ghc/ :? for help [1 of 1] Compiling Main ( Test.hs, interpreted ) Ok, one module loaded. *Main> :break foo Breakpoint 0 activated at Test.hs:2:7-14 *Main> foo Stopped in Main.foo, Test.hs:2:7-14 _result :: [Int] = _ [Test.hs:2:7-14] [Test.hs:2:7-14] *Main> }}} The `[Test.hs:2:7-14]` part is repeated. Setting the prompt fixes it: {{{ $ ghc-stage2 --interactive Test.hs -ignore-dot-ghci GHCi, version 8.5.20180325: http://www.haskell.org/ghc/ :? for help [1 of 1] Compiling Main ( Test.hs, interpreted ) Ok, one module loaded. *Main> :set prompt "> "
:break foo Breakpoint 0 activated at Test.hs:2:7-14 foo Stopped in Main.foo, Test.hs:2:7-14 _result :: [Int] = _ [Test.hs:2:7-14] > }}}
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14973 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler