#8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning -------------------------------------+------------------------------------ Reporter: asr | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Documentation | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by simonmar): What I'm remembering is this: commit 67157c5c25c8044b54419470b5e8cc677be060c3 {{{ Author: simonpj@microsoft.com <unknown> Date: Tue Nov 16 17:18:43 2010 +0000 Warn a bit less often about unlifted bindings. Warn when (a) a pattern bindings binds unlifted values (b) it has no top-level bang (c) the RHS has a *lifted* type Clause (c) is new, argued for by Simon M Eg x# = 4# + 4# -- No warning (# a,b #) = blah -- No warning I# x = blah -- Warning }}} Which should mean that the bindings that Happy uses (where bindings of type `Int#`) do not generate warnings. So is there a bug in the warning? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8022#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler