[GHC] #11512: An unwritten kind variable is "specified", when it shouldn't be.
#11512: An unwritten kind variable is "specified", when it shouldn't be. -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Keywords: | Operating System: Unknown/Multiple TypeApplications | Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- This fails: {{{#!hs {-# LANGUAGE PolyKinds, TypeApplications, ScopedTypeVariables #-} module Bug where import Data.Proxy class C a where foo :: Proxy a bar :: forall a. C a => Proxy a bar = foo @a }}} But it really should work, because the invisible kind variable to class `C` should not be available for type application. On the last line, `foo @_ @a` works, when you explicitly instantiate the kind variable. Also, saying `:t foo` in GHCi shows the specified kind variable. Will fix. At some point. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11512 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11512: An unwritten kind variable is "specified", when it shouldn't be.
-------------------------------------+-------------------------------------
Reporter: goldfire | Owner: goldfire
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 8.1
Resolution: | Keywords:
| TypeApplications
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by Richard Eisenberg
#11512: An unwritten kind variable is "specified", when it shouldn't be. -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: merge Priority: normal | Milestone: Component: Compiler | Version: 8.1 Resolution: | Keywords: | TypeApplications Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T11512 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by goldfire): * testcase: => typecheck/should_compile/T11512 * status: new => merge -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11512#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11512: An unwritten kind variable is "specified", when it shouldn't be. -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: merge Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: | TypeApplications Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T11512 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by goldfire): * milestone: => 8.0.1 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11512#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11512: An unwritten kind variable is "specified", when it shouldn't be. -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: merge Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: | TypeApplications Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T11512 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Merged as c1d6cd4d0c80a671c3bc837e0446b62813cfc124. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11512#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11512: An unwritten kind variable is "specified", when it shouldn't be.
-------------------------------------+-------------------------------------
Reporter: goldfire | Owner: goldfire
Type: bug | Status: merge
Priority: normal | Milestone: 8.0.1
Component: Compiler | Version: 8.1
Resolution: | Keywords:
| TypeApplications
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
| typecheck/should_compile/T11512
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
-------------------------------------+-------------------------------------
Comment (by Richard Eisenberg
#11512: An unwritten kind variable is "specified", when it shouldn't be. -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: closed Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 8.1 Resolution: fixed | Keywords: | TypeApplications Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | typecheck/should_compile/T11512 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: merge => closed * resolution: => fixed Comment: Merged as 01f771740f015149cf8e726c8da8a197bf99cb47. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11512#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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