[GHC] #15341: :info prints kinds in closed type family equations without enabling -fprint-explicit-kinds
#15341: :info prints kinds in closed type family equations without enabling -fprint-explicit-kinds -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Keywords: TypeFamilies | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Load this file into GHCi: {{{#!hs {-# LANGUAGE PolyKinds #-} {-# LANGUAGE TypeFamilies #-} module Bug where type family Foo (a :: k) :: k where Foo a = a }}} And run `:info` on `Foo`: {{{ $ /opt/ghc/8.4.3/bin/ghci Bug.hs GHCi, version 8.4.3: http://www.haskell.org/ghc/ :? for help Loaded GHCi configuration from /home/ryanglscott/.ghci [1 of 1] Compiling Bug ( Bug.hs, interpreted ) Ok, one module loaded. λ> :i Foo type family Foo (a :: k) :: k where Foo k a = a -- Defined at Bug.hs:5:1 }}} Note that when printing the equation for `Foo`, the kind `k` is treated as though it were the first visible argument to `Foo`, even though `-fprint- explicit-kinds` is not enabled. This is because `ppr_tc_args` in `IfaceType` does not take `-fprint-explicit-kinds` into account. Patch incoming (pending a `./validate`). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15341 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#15341: :info prints kinds in closed type family equations without enabling -fprint-explicit-kinds -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: TypeFamilies Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4932 Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * status: new => patch * differential: => Phab:D4932 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15341#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#15341: :info prints kinds in closed type family equations without enabling
-fprint-explicit-kinds
-------------------------------------+-------------------------------------
Reporter: RyanGlScott | Owner: (none)
Type: bug | Status: patch
Priority: normal | Milestone: 8.6.1
Component: Compiler | Version: 8.4.3
Resolution: | Keywords: TypeFamilies
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s): Phab:D4932
Wiki Page: |
-------------------------------------+-------------------------------------
Comment (by Ryan Scott
#15341: :info prints kinds in closed type family equations without enabling -fprint-explicit-kinds -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: merge Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: TypeFamilies Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | ghci/scripts/T15341 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4932 Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * status: patch => merge * testcase: => ghci/scripts/T15341 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15341#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#15341: :info prints kinds in closed type family equations without enabling -fprint-explicit-kinds -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: fixed | Keywords: TypeFamilies Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | ghci/scripts/T15341 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4932 Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: merge => closed * resolution: => fixed Comment: comment:2 merged in 7b8dcd90c5a622146dfdd3b162a1f1b1d262d5cf. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15341#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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