#13453: Seemingly can't mix ImplicitParams in where clauses -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 (Parser) | Keywords: Resolution: | ImplicitParams Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Description changed by Iceland_jack: Old description:
These are fine
{{{#!hs v = () where a = True b = 'a' }}}
{{{#!hs v = () where ?a = True ?b = 'a' }}}
but the moment one of them is an `ImplicitParams` it fails to parse
{{{#!hs -- tAMA.hs:9:3-4: error: Parse error in pattern: ?b -- Compilation failed. v = () where a = True ?b = 'a'
-- tAMA.hs:9:3: error: parse error on input ‘b’ -- Compilation failed. v = () where ?a = True b = 'a' }}}
New description: These are fine {{{#!hs v = () where a = True b = 'a' }}} {{{#!hs v = () where ?a = True ?b = 'a' }}} but the moment one of them is an `ImplicitParams` variable '''as well''' as a regular one, it fails to parse {{{#!hs -- tAMA.hs:9:3-4: error: Parse error in pattern: ?b -- Compilation failed. v = () where a = True ?b = 'a' -- tAMA.hs:9:3: error: parse error on input ‘b’ -- Compilation failed. v = () where ?a = True b = 'a' }}} -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13453#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler