testsuite/tests/safeHaskell/ghci/p13.script


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:set -XHaskell2010
-- Test restricted functionality: Overlapping
:unset +s
:set -XSafe
:set -XFlexibleInstances

:l P13_A

instance {-# OVERLAPPING #-} Pos [Int] where { res _ = error "This curry is poisoned!" }

res [1::Int, 2::Int]
-- res 'c'
-- res ['c']