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overloadedrecfldsfail01.hs:11:10: error:
Record update is ambiguous, and requires a type signature
In the expression: r {x = 3}
In an equation for ‘upd1’: upd1 r = r {x = 3}
overloadedrecfldsfail01.hs:14:10: error:
No type has all these fields: ‘x’, ‘y’, ‘z’
In the expression: r {x = 3, y = True, z = False}
In an equation for ‘upd2’: upd2 r = r {x = 3, y = True, z = False}
overloadedrecfldsfail01.hs:17:10: error:
‘x’ is not a (visible) field of type ‘U’
In the expression: r {w = True, x = 3, y = True} :: U
In an equation for ‘upd3’:
upd3 r = r {w = True, x = 3, y = True} :: U
overloadedrecfldsfail01.hs:17:10: error:
‘w’ is not a (visible) field of type ‘U’
In the expression: r {w = True, x = 3, y = True} :: U
In an equation for ‘upd3’:
upd3 r = r {w = True, x = 3, y = True} :: U
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