[GHC] #14313: “Result signatures are no longer supported in pattern matches” lost
#14313: “Result signatures are no longer supported in pattern matches” lost -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: task | Status: new Priority: low | Milestone: Component: Compiler | Version: 8.2.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: #2310 Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- This commit (b98ff25f4c8cb4bf18b784c848fabaaa6e4b11b8) from two years ago broke the error message (at least according to when `T2310.stderr` was modified): {{{ T2310.hs:5:22: Illegal result type signature ‘a’ Result signatures are no longer supported in pattern matches In a lambda abstraction: \ x :: a -> (x :: a) }}} that was displayed previously. Either we do want that error message (then this is a bug) or we don’t care about this error message any more, then probably we can remove the `m_type` field of `Match` in `HsExpr`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14313 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14313: “Result signatures are no longer supported in pattern matches” lost -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: task | Status: new Priority: low | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #2310 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Yes. See also #2310 (9 yrs ago) in which result type signatures are not supported. Let's kill off `m_type` entirely. Can you do that or shall I? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14313#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14313: “Result signatures are no longer supported in pattern matches” lost -------------------------------------+------------------------------------- Reporter: nomeata | Owner: nomeata Type: task | Status: new Priority: low | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #2310 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by nomeata): * owner: (none) => nomeata Comment: I’ll give it a shot. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14313#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14313: “Result signatures are no longer supported in pattern matches” lost -------------------------------------+------------------------------------- Reporter: nomeata | Owner: nomeata Type: task | Status: patch Priority: low | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #2310 | Differential Rev(s): Phab:D4066 Wiki Page: | -------------------------------------+------------------------------------- Changes (by nomeata): * status: new => patch * differential: => Phab:D4066 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14313#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14313: “Result signatures are no longer supported in pattern matches” lost
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Reporter: nomeata | Owner: nomeata
Type: task | Status: patch
Priority: low | Milestone:
Component: Compiler | Version: 8.2.1
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: #2310 | Differential Rev(s): Phab:D4066
Wiki Page: |
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Comment (by Joachim Breitner
#14313: “Result signatures are no longer supported in pattern matches” lost -------------------------------------+------------------------------------- Reporter: nomeata | Owner: nomeata Type: task | Status: closed Priority: low | Milestone: Component: Compiler | Version: 8.2.1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #2310 | Differential Rev(s): Phab:D4066 Wiki Page: | -------------------------------------+------------------------------------- Changes (by monoidal): * status: patch => closed * resolution: => fixed -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14313#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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