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| author | Simon Marlow <marlowsd@gmail.com> | 2016-02-20 07:23:37 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2016-02-20 08:53:20 +0000 |
| commit | 3259bf658662e7052ae91de2fa27baae8c84b7fa (patch) | |
| tree | 787a7119b192dbe7e7c82e06efbb5cb20088f885 /testsuite/tests/ado | |
| parent | 6cec90584deca4b09538e89804648435b284cff0 (diff) | |
| download | haskell-3259bf658662e7052ae91de2fa27baae8c84b7fa.tar.gz | |
Fix a bug in ApplicativeDo (#11612)
In some cases ApplicativeDo would miss some opportunities, due to a
wrong calculation of free variables in RnExpr.segments.
Diffstat (limited to 'testsuite/tests/ado')
| -rw-r--r-- | testsuite/tests/ado/ado001.hs | 12 | ||||
| -rw-r--r-- | testsuite/tests/ado/ado001.stdout | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/testsuite/tests/ado/ado001.hs b/testsuite/tests/ado/ado001.hs index 9f8f8da752..e452cdd1f3 100644 --- a/testsuite/tests/ado/ado001.hs +++ b/testsuite/tests/ado/ado001.hs @@ -109,6 +109,17 @@ test10 = do x5 <- e return (const () (x3,x4,x5)) +-- (a | b) +-- This demonstrated a bug in RnExpr.segments (#11612) +test11 :: M () +test11 = do + x1 <- a + let x2 = x1 + x3 <- b + let x4 = c + x5 = x4 + return (const () (x1,x2,x3,x4)) + main = mapM_ run [ test1 , test2 @@ -120,6 +131,7 @@ main = mapM_ run , test8 , test9 , test10 + , test11 ] -- Testing code, prints out the structure of a monad/applicative expression diff --git a/testsuite/tests/ado/ado001.stdout b/testsuite/tests/ado/ado001.stdout index 93e300cb42..f7c48ca152 100644 --- a/testsuite/tests/ado/ado001.stdout +++ b/testsuite/tests/ado/ado001.stdout @@ -8,3 +8,4 @@ a; (b | (c; (d; (e | (f; g))))) a; ((b | c) | d) ((a | (b; c)) | d) | e ((a | b); (c | d)) | e +a | b |