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5738b67f239dea0f9c61ac50c71a4618d27473d4
[ghc-hetmet.git]
/
ghc
/
tests
/
typecheck
/
should_compile
/
tc105.hs
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{-# OPTIONS -fglasgow-exts #-}
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-- !!! Scoped type variables in result signatures
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module ShouldCompile where
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import PrelST
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import PrelArr
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f:: ST s Int
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f:: ST s Int = do
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v <- newSTRef 5
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let g :: ST s Int
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-- ^ should be in scope
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g = readSTRef v
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g