completesig06.hs:13:1: warning: [-Wincomplete-patterns (in -Wextra)] Pattern match(es) are non-exhaustive In an equation for ‘m1’: Patterns of type ‘T’ not matched: B completesig06.hs:16:1: warning: [-Wincomplete-patterns (in -Wextra)] Pattern match(es) are non-exhaustive In an equation for ‘m2’: Patterns of type ‘T’ not matched: A completesig06.hs:20:1: warning: [-Wincomplete-patterns (in -Wextra)] Pattern match(es) are non-exhaustive In an equation for ‘m3’: Patterns of type ‘T’ not matched: A B completesig06.hs:23:1: warning: [-Wincomplete-patterns (in -Wextra)] Pattern match(es) are non-exhaustive In an equation for ‘m4’: Patterns of type ‘T’, ‘S’ not matched: A D B D completesig06.hs:29:1: warning: [-Wincomplete-patterns (in -Wextra)] Pattern match(es) are non-exhaustive In an equation for ‘m5’: Patterns of type ‘T’, ‘S’ not matched: A D B D