June 2015 - ghc-tickets

Re: [GHC] #2648: Report out of date interface files robustly
by GHC 11 Jun '15

11 Jun '15

#2648: Report out of date interface files robustly -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: feature request | Status: new Priority: lowest | Milestone: 7.12.1 Component: GHCi | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHCi crash | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by asr): * cc: asr (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2648#comment:18> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc
by GHC 11 Jun '15

11 Jun '15

#7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc -------------------------------------+------------------------------------- Reporter: nwf | Owner: carter Type: feature request | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: #9883 | Blocking: 9883 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by s9gf4ult): * Pattern matching: I believe we should not put pattern matching into `OverloadedLists` and stay with just list construction. It looks like implementation of generic list construction is simpler than generic pattern matching. The usability of list construction is higher because things like {{{#!hs [ OneTypeConstructor , OtherTypeConstructor , "string" ] }}} looks more clean and simple to write than {{{#!hs HCons OneTypeConstructor $ HCons OtherTypeConstructor $ HCons "string" HNil }}} but when you pattern match some list you probably expect some concrete list type, not just some list (heterogeneous or homogeneous) with some elements. Maybe add separate `OverloadedListPatterns` extension instead? * About `[a,b..c]`: There should nothing changed for homogeneous lists, but heterogeneous lists can not be constructed dynamically, especially lists like `[1..]`. Maybe it would be nice to make sugar `[a,b..f]` unwrap to {{{#!hs HCons a $ HCons b $ HCons c $ HCons e $ HCons f HNil }}} but it is not an option for homogeneous lists, especially lists like `[1,2..10000000]`. Maybe special syntax like `[1,2...5]` (three dots) for constructing heterogeneous lists at compile time? * I don't see any things which current `OverloadedLists` can do and this new can not. Maybe some issues with type inference ... -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7495#comment:15> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #3085: warn about language extensions that are not used
by GHC 10 Jun '15

10 Jun '15

#3085: warn about language extensions that are not used -------------------------------------+------------------------------------- Reporter: PVerswyvelen | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 6.10.1 Resolution: | Keywords: warnings Operating System: Unknown/Multiple | extensions language Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: #9757 | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by WrenThornton): * cc: wren@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3085#comment:40> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc
by GHC 10 Jun '15

10 Jun '15

#7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc -------------------------------------+------------------------------------- Reporter: nwf | Owner: carter Type: feature request | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: #9883 | Blocking: 9883 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): I like comment:11. Do start a wiki page to describe the design. Issues you don't cover yet * Pattern matching * What about `[a,b..c]` and friends? * One could add this as a different and incompatible extension to the existing `OverloadedLists`, but it would be better to get the best of both worlds. Can we? What can the existing `OverloadedLists` do that the new design cannot? There are probably more issues. A wiki page is a good place to put the current best-effort design; while the ticket is a good place to discuss it. Simon -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7495#comment:14> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #3266: Segment fault with WxHaskell and GHC 6.10.2
by GHC 10 Jun '15

10 Jun '15

#3266: Segment fault with WxHaskell and GHC 6.10.2 ---------------------------------+------------------------------------ Reporter: mcastellazzi | Owner: Type: bug | Status: closed Priority: normal | Milestone: ⊥ Component: Compiler | Version: 6.10.2 Resolution: wontfix | Keywords: wxhaskell Operating System: Windows | Architecture: x86 Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------+------------------------------------ Changes (by thomie): * status: new => closed * failure: => None/Unknown * resolution: => wontfix Comment: We no longer support GHC 6.10. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3266#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1612: GHC_PACKAGE_PATH and $topdir bug
by GHC 10 Jun '15

10 Jun '15

#1612: GHC_PACKAGE_PATH and $topdir bug -------------------------------------+------------------------------------- Reporter: eivuokko | Owner: Type: bug | Status: new Priority: lowest | Milestone: ⊥ Component: Package system | Version: 6.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * os: Windows => Unknown/Multiple * milestone: 7.12.1 => ⊥ Comment: The bug is minor, but it's still there after 8 years. Here goes: In the file `/opt/ghc/7.10.1/lib/ghc-7.10.1/package.conf.d/base-4.8.0.0-1b689eb8d72c4d4cc88f445839c1f01a.conf` I make the following change: {{{ -haddock-interfaces: /opt/ghc/7.10.1/share/doc/ghc/html/libraries/base-4.8.0.0/base.haddock +haddock-interfaces: $topdir/../../share/doc/ghc/html/libraries/base-4.8.0.0/base.haddock }}} The path that ghc-pkg returns for the haddock-interfaces files exists: {{{ $ ghc-pkg field base haddock-interfaces --package- db=/opt/ghc/7.10.1/lib/ghc-7.10.1/package.conf.d/ haddock-interfaces: /opt/ghc/7.10.1/lib/ghc-7.10.1/../../share/doc/ghc/html/libraries/base-4.8.0.0/base.haddock }}} But when I do the same query while telling ghc-pkg that the global package database is an empty package.conf.d directory, it returns the following: {{{ $ mkdir package.conf.d $ ghc-pkg field base haddock-interfaces --package- db=/opt/ghc/7.10.1/lib/ghc-7.10.1/package.conf.d/ --global-package- db=./package.conf.d/ haddock-interfaces: /home/thomas/package.conf.d/../../share/doc/ghc/html/libraries/base-4.8.0.0/base.haddock }}} Note that that last path doesn't exist. It made the wrong substitution for $topdir. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1612#comment:17> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1308: Type signature in warning is wrong
by GHC 10 Jun '15

10 Jun '15

#1308: Type signature in warning is wrong -------------------------------------+------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: ⊥ Component: Compiler (Type | Version: 6.7 checker) | Keywords: Resolution: | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * failure: => None/Unknown * component: Compiler => Compiler (Type checker) * os: Windows => Unknown/Multiple -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1308#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1307: Warning refers to code not in the source
by GHC 10 Jun '15

10 Jun '15

#1307: Warning refers to code not in the source -------------------------------------+------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: lowest | Milestone: ⊥ Component: Compiler | Version: 6.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * os: Windows => Unknown/Multiple -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1307#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10127: There is no ghc-7.8.4 for 32 bit Windows
by GHC 10 Jun '15

10 Jun '15

#10127: There is no ghc-7.8.4 for 32 bit Windows -------------------------------------+------------------------------------- Reporter: augustss | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.4 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Windows-32 is no longer listed as a supported platform, nor is there an installer. Is this intentional? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10127> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2437: More accurate package dependencies
by GHC 10 Jun '15

10 Jun '15

#2437: More accurate package dependencies -------------------------------------+------------------------------------- Reporter: simonmar | Owner: niteria Type: task | Status: patch Priority: lowest | Milestone: 7.12.1 Component: Package system | Version: 6.8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: #3560, #8174 | Blocking: | Differential Revisions: D973 -------------------------------------+------------------------------------- Changes (by niteria): * status: new => patch * differential: => D973 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2437#comment:24> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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