[GHC] #14664: "GHC.Integer can't throw exceptions" is wrong

GHC ghc-devs at haskell.org
Fri Jan 12 23:29:45 UTC 2018


#14664: "GHC.Integer can't throw exceptions" is wrong
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        Reporter:  Zemyla            |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Zemyla):

 Well, yeah, this was mostly a proof of concept, and I don't know how
 exactly to make it support unboxed as well as boxed types, though I'm
 pretty sure it's possible.

 But yeah, a primop like `primError# :: Addr# -> a` that takes a zero-
 terminated string literal and throws a specific type of error hardcoded
 into the RTS and defined later in Control.Exception might work.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14664#comment:2>
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