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[GHC] #9990: Top level module identifiers shadow imported identifiers
by GHC 21 Jan '15

21 Jan '15

#9990: Top level module identifiers shadow imported identifiers -------------------------------------+------------------------------------- Reporter: drb226 | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: Component: Compiler | Operating System: Unknown/Multiple Keywords: | Type of failure: None/Unknown Architecture: | Blocked By: Unknown/Multiple | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Let's try this out as a language pragma and see if we like it? Artificial example: {{{#!hs {-# LANGUAGE TopLevelShadowsImports #-} import Data.Monoid (<>) = mappend main = putStrLn ("Hello" <> " " <> "World") }}} Current behavior: error: ambiguous occurrence of (<>) Desired behavior: uses top-level definition of (<>), prints "hello world" -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9990> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10008: Error
by GHC 20 Jan '15

20 Jan '15

#10008: Error -------------------------------------+------------------------------------- Reporter: | Owner: amadeusxnet | Status: new Type: bug | Milestone: Priority: normal | Version: 7.4.1 Component: Compiler | Operating System: Linux Keywords: | Type of failure: Building GHC Architecture: arm | failed Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- ghc: panic! (the 'impossible' happened) (GHC version 7.4.1 for arm-unknown-linux): Cant do annotations without GHCi {Data/Vector/Fusion/Stream/Monadic.hs:104:19-33} base:GHC.Exts.ForceSpecConstr{d raqj} I'm using a Raspberry Pi. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10008> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7788: Recursive type family causes <<loop>>
by GHC 20 Jan '15

20 Jan '15

#7788: Recursive type family causes <<loop>> -------------------------------------+------------------------------------- Reporter: shachaf | Owner: simonpj Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Compiler (Type | Version: 7.6.2 checker) | Keywords: Resolution: | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: Incorrect result | Test Case: at runtime | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by jstolarek): * cc: jstolarek (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7788#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9999: Typeable deriving behavior different between data families and associated data types
by GHC 20 Jan '15

20 Jan '15

#9999: Typeable deriving behavior different between data families and associated data types -------------------------------------+------------------------------------- Reporter: shachaf | 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: | -------------------------------------+------------------------------------- With `AutoDeriveTypeable`, data families get a `Typeable` instance, but associated data types in a class don't (and even standalone deriving doesn't work for them). {{{ λ> data family Foo a λ> typeRep (Proxy :: Proxy Foo) Foo λ> class K a where { data Bar a } λ> typeRep (Proxy :: Proxy Bar) <interactive>:6:1: No instance for (Typeable Bar) arising from a use of ‘typeRep’ In the expression: typeRep (Proxy :: Proxy Bar) In an equation for ‘it’: it = typeRep (Proxy :: Proxy Bar) λ> deriving instance Typeable Bar <interactive>:7:1: Can't make a derived instance of ‘Typeable Bar’: Deriving Typeable is not allowed for family instances; derive Typeable for ‘Bar’ alone In the stand-alone deriving instance for ‘Typeable Bar’ }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9999> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9836: Facility to mitigate double-breakage due to Data.Version.versionTag Deprecation
by GHC 19 Jan '15

19 Jan '15

#9836: Facility to mitigate double-breakage due to Data.Version.versionTag Deprecation -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: task | Status: new Priority: high | Milestone: 7.10.1 Component: libraries/base | Version: Keywords: Data.Version | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 | Type of failure: hour) | None/Unknown Blocked By: | Test Case: Related Tickets: #2496 | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- See https://groups.google.com/forum/#!topic/haskell-core-libraries/q9H- QlL_gnE -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9836> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #7919, #8131, #8974, #9007, #314, #781, #4144, #4505, #5987, #7325, #7411, #7521, #7567, #7679, #8228, #5910, #9631
by GHC 19 Jan '15

19 Jan '15

Batch modification to #7919, #8131, #8974, #9007, #314, #781, #4144, #4505, #5987, #7325, #7411, #7521, #7567, #7679, #8228, #5910, #9631 by thoughtpolice: milestone to 7.12.1 Comment: Moving to 7.12.1 -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=7919%2C8131%2C8974%2C9007%2C314%2C…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7320: GHC crashes when building on 32-bit Linux in a Linode
by GHC 19 Jan '15

19 Jan '15

#7320: GHC crashes when building on 32-bit Linux in a Linode ---------------------------------------+----------------------------------- Reporter: benl | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Runtime System | Version: 7.6.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86 Type of failure: Compile-time crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------------+----------------------------------- Changes (by thoughtpolice): * priority: high => normal * milestone: 7.10.1 => 7.12.1 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7320#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7298: Test 2228 fails with dynamic-by-default
by GHC 19 Jan '15

19 Jan '15

#7298: Test 2228 fails with dynamic-by-default -------------------------------------+------------------------------------- Reporter: igloo | Owner: Type: bug | Status: closed Priority: high | Milestone: Component: GHCi | Version: 7.6.1 Resolution: wontfix | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thoughtpolice): * milestone: 7.10.1 => -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7298#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7298: Test 2228 fails with dynamic-by-default
by GHC 19 Jan '15

19 Jan '15

#7298: Test 2228 fails with dynamic-by-default -------------------------------------+------------------------------------- Reporter: igloo | Owner: Type: bug | Status: closed Priority: high | Milestone: 7.10.1 Component: GHCi | Version: 7.6.1 Resolution: wontfix | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thoughtpolice): * cc: hvr (added) * status: new => closed * resolution: => wontfix Comment: Closing, since we're moving away from dynamic by default anyway. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7298#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9957: Document -fwarn-unticked-promoted-constructors in release notes
by GHC 19 Jan '15

19 Jan '15

#9957: Document -fwarn-unticked-promoted-constructors in release notes -------------------------------------+------------------------------------- Reporter: adamgundry | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: | Version: 7.10.1-rc1 Documentation | Operating System: Unknown/Multiple Keywords: | Type of failure: Documentation Architecture: | bug Unknown/Multiple | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- The new flag `-fwarn-unticked-promoted-constructors` should be documented in the release notes, as users upgrading to 7.10 may need to update their code or flags to continue compiling with `-Wall -Werror`. Perhaps it should even be removed from `-Wall` (c.f. [https://www.haskell.org/pipermail/ghc-devs/2014-December/007738.html discussion here])? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9957> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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