#3303: Allow multi-line deprecation messages.
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Reporter: duncan | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.10.2
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Changes (by simonpj):
* difficulty: => Unknown
Comment:
Concerning line wrapping, it's not clear that you want GHC to re-wrap your
text at arbitrary places. You might care where the line breaks are. How
about this: instead of giving one string, you can instead give a list of
strings, which are displayed on successive lines. So input is:
{{{
{-# DEPRECATED defaultUserHooks
["Use simpleUserHooks or autoconfUserHooks, unless you need
Cabal-1.2"
, "compatibility in which case you must stick with defaultUserHooks"]
#-}
}}}
The output would look as you'd expect. This is nice because it's backward
compatible, and deals with points from the original report.
Concerning constructors vs types, the very same thing comes up with fixity
declarations, at least when you use GHC's ability to have infix type
constructors:
{{{
infix 4 :+:
}}}
I'd be happy with a disambiguating prefix `constructor`, `type`, or
`class`; at least when there ''was'' ambiguity. That means making
`constructor` a new `special_id`, but it wouldn't be a keyword except in
these two special situations, like other `special_id`s.
Comments?
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3303#comment:2>
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