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Diffstat (limited to 'testsuite/tests/typecheck/should_fail/tcfail067.stderr')
-rw-r--r-- | testsuite/tests/typecheck/should_fail/tcfail067.stderr | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail067.stderr b/testsuite/tests/typecheck/should_fail/tcfail067.stderr new file mode 100644 index 0000000000..4c69c67391 --- /dev/null +++ b/testsuite/tests/typecheck/should_fail/tcfail067.stderr @@ -0,0 +1,82 @@ + +tcfail067.hs:1:14: + Warning: -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language. + +tcfail067.hs:12:16: + No instance for (Ord a) + arising from a use of `SubRange' + In the pattern: SubRange (lower, upper) value + In an equation for `subRangeValue': + subRangeValue (SubRange (lower, upper) value) = value + +tcfail067.hs:15:11: + No instance for (Ord a) + arising from a use of `SubRange' + In the pattern: SubRange r value + In an equation for `subRange': subRange (SubRange r value) = r + +tcfail067.hs:46:12: + Could not deduce (Ord a) arising from a use of `SubRange' + from the context (Show a) + bound by the type signature for + showRange :: Show a => SubRange a -> String + at tcfail067.hs:(46,1)-(47,58) + Possible fix: + add (Ord a) to the context of + the type signature for showRange :: Show a => SubRange a -> String + In the pattern: SubRange (lower, upper) value + In an equation for `showRange': + showRange (SubRange (lower, upper) value) + = show value ++ " :" ++ show lower ++ ".." ++ show upper + +tcfail067.hs:60:10: + Could not deduce (Show (SubRange a)) + arising from the superclasses of an instance declaration + from the context (Num a) + bound by the instance declaration at tcfail067.hs:60:10-34 + Possible fix: + add (Show (SubRange a)) to the context of the instance declaration + or add an instance declaration for (Show (SubRange a)) + In the instance declaration for `Num (SubRange a)' + +tcfail067.hs:61:12: + Could not deduce (Ord a) arising from a use of `numSubRangeNegate' + from the context (Num a) + bound by the instance declaration at tcfail067.hs:60:10-34 + Possible fix: + add (Ord a) to the context of the instance declaration + In the expression: numSubRangeNegate + In an equation for `negate': negate = numSubRangeNegate + In the instance declaration for `Num (SubRange a)' + +tcfail067.hs:65:19: + Could not deduce (Ord a) arising from a use of `SubRange' + from the context (Num a) + bound by the instance declaration at tcfail067.hs:60:10-34 + Possible fix: + add (Ord a) to the context of the instance declaration + In the expression: + SubRange (fromInteger a, fromInteger a) (fromInteger a) + In an equation for `fromInteger': + fromInteger a + = SubRange (fromInteger a, fromInteger a) (fromInteger a) + In the instance declaration for `Num (SubRange a)' + +tcfail067.hs:74:5: + Could not deduce (Ord a) arising from a use of `SubRange' + from the context (Num a) + bound by the type signature for + numSubRangeBinOp :: Num a => + (a -> a -> a) -> SubRange a -> SubRange a -> SubRange a + at tcfail067.hs:(73,1)-(76,53) + Possible fix: + add (Ord a) to the context of + the type signature for + numSubRangeBinOp :: Num a => + (a -> a -> a) -> SubRange a -> SubRange a -> SubRange a + In the expression: SubRange (result, result) result + In an equation for `numSubRangeBinOp': + numSubRangeBinOp op a b + = SubRange (result, result) result + where + result = (subRangeValue a) `op` (subRangeValue b) |