46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
This patch is taken from upstream. It fixes a test to work with GHC 8.6.
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The paths have been slightly altered to work with the release tarball.
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See <https://github.com/simonmar/monad-par/issues/66>.
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From e20f81c8060208e4fb038e8f0e0668b41d72a6fb Mon Sep 17 00:00:00 2001
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From: Clint Adams <clint@debian.org>
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Date: Sat, 31 Aug 2019 14:12:34 -0400
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Subject: [PATCH] Use a case statement instead of pattern-matching in
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case_test_diamond
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This avoids the need for a MonadFail instance. Closes #66
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---
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monad-par/tests/ParTests_shared.hs | 15 +++++++++------
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1 file changed, 9 insertions(+), 6 deletions(-)
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diff --git a/tests/ParTests_shared.hs b/tests/ParTests_shared.hs
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index 31f438d..b2de50c 100644
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--- a/tests/ParTests_shared.hs
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+++ b/tests/ParTests_shared.hs
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@@ -109,12 +109,15 @@ case_test_diamond :: Assertion
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case_test_diamond = 9 @=? (m :: Int)
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where
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m = runPar $ do
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- [a,b,c,d] <- sequence [new,new,new,new]
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- fork $ do x <- get a; put b (x+1)
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- fork $ do x <- get a; put c (x+2)
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- fork $ do x <- get b; y <- get c; put d (x+y)
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- fork $ do put a 3
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- get d
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+ abcd <- sequence [new,new,new,new]
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+ case abcd of
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+ [a,b,c,d] -> do
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+ fork $ do x <- get a; put b (x+1)
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+ fork $ do x <- get a; put c (x+2)
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+ fork $ do x <- get b; y <- get c; put d (x+y)
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+ fork $ do put a 3
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+ get d
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+ _ -> error "Oops"
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-- | Violate IVar single-assignment:
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--
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--
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2.23.0
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