[GHC] #14130: MultiWayIf parse behavior changed in 8.2.1
#14130: MultiWayIf parse behavior changed in 8.2.1 -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.2.1 (Parser) | Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- I just noticed while working on Jenkins that ed7a830de6a2ea74dd6bb81f8ec55b9fe0b52f28 fails to build with GHC 8.0.1 with a parse error, yet succeeds with 8.2.1. The issue is demonstrated by the following program, {{{#!hs {-# LANGUAGE MultiWayIf #-} main = if | True -> putStrLn "hasdf" }}} Under GHC 8.0.1 this fails to compile with a parse error. Under 8.0.2 and 8.2.1 it parses without any trouble. We should sort out what the desired parse behavior for `MultiWayIf` is and add a test to ensure it doesn't change again. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14130 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14130: MultiWayIf parse behavior changed in 8.0.2 -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: closed Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.2.1 (Parser) | Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10807 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: new => closed * resolution: => invalid * related: => #10807 Comment: Never mind; this was a false alarm. This change was intentional and due to #10807. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14130#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#14130: MultiWayIf parse behavior changed in 8.0.2
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Reporter: bgamari | Owner: (none)
Type: bug | Status: closed
Priority: high | Milestone: 8.4.1
Component: Compiler | Version: 8.2.1
(Parser) |
Resolution: invalid | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: #10807 | Differential Rev(s):
Wiki Page: |
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Comment (by Ben Gamari
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