diff options
Diffstat (limited to 'lib/hipe/cerl/erl_types.erl')
| -rw-r--r-- | lib/hipe/cerl/erl_types.erl | 53 |
1 files changed, 45 insertions, 8 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index 4dd124a457..080d6936b2 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -62,6 +62,7 @@ t_boolean/0, t_byte/0, t_char/0, + t_charlist/0, t_collect_vars/1, t_cons/0, t_cons/2, @@ -195,6 +196,7 @@ t_tuple_size/1, t_tuple_sizes/1, t_tuple_subtypes/1, + t_unicode_string/0, t_unify/2, t_unify/3, t_unit/0, @@ -1455,6 +1457,26 @@ t_is_tuple(_) -> false. %% Non-primitive types, including some handy syntactic sugar types %% +-spec t_unicode_string() -> erl_type(). + +t_unicode_string() -> + t_list(t_unicode_char()). + +-spec t_charlist() -> erl_type(). + +t_charlist() -> + t_charlist(1). + +-spec t_charlist(non_neg_integer()) -> erl_type(). + +t_charlist(N) when N > 0 -> + t_maybe_improper_list(t_sup([t_unicode_char(), + t_unicode_binary(), + t_charlist(N-1)]), + t_sup(t_unicode_binary(), t_nil())); +t_charlist(0) -> + t_maybe_improper_list(t_any(), t_sup(t_unicode_binary(), t_nil())). + -spec t_constant() -> erl_type(). t_constant() -> @@ -1549,6 +1571,16 @@ t_parameterized_module() -> t_timeout() -> t_sup(t_non_neg_integer(), t_atom('infinity')). +-spec t_unicode_binary() -> erl_type(). + +t_unicode_binary() -> + t_binary(). % with characters encoded in UTF-8 coding standard + +-spec t_unicode_char() -> erl_type(). + +t_unicode_char() -> + t_integer(). % representing a valid unicode codepoint + %%----------------------------------------------------------------------------- %% Some built-in opaque types %% @@ -2127,7 +2159,8 @@ t_elements(?identifier(IDs)) -> t_elements(?list(_, _, _) = T) -> [T]; t_elements(?number(_, _) = T) -> case T of - ?number(?any, ?unknown_qual) -> [T]; + ?number(?any, ?unknown_qual) -> + [?float, ?integer(?any)]; ?float -> [T]; ?integer(?any) -> [T]; ?int_range(_, _) -> [T]; @@ -2174,10 +2207,10 @@ t_inf(?var(_), T, _Mode) -> subst_all_vars_to_any(T); t_inf(T, ?var(_), _Mode) -> subst_all_vars_to_any(T); t_inf(?any, T, _Mode) -> subst_all_vars_to_any(T); t_inf(T, ?any, _Mode) -> subst_all_vars_to_any(T); -t_inf(?unit, _, _Mode) -> ?unit; -t_inf(_, ?unit, _Mode) -> ?unit; t_inf(?none, _, _Mode) -> ?none; t_inf(_, ?none, _Mode) -> ?none; +t_inf(?unit, _, _Mode) -> ?unit; % ?unit cases should appear below ?none +t_inf(_, ?unit, _Mode) -> ?unit; t_inf(T, T, _Mode) -> subst_all_vars_to_any(T); t_inf(?atom(Set1), ?atom(Set2), _) -> case set_intersection(Set1, Set2) of @@ -2386,10 +2419,12 @@ inf_tuple_sets(L1, L2, Mode) -> List -> ?tuple_set(List) end. -inf_tuple_sets([{Arity, Tuples1}|Left1], [{Arity, Tuples2}|Left2], Acc, Mode) -> +inf_tuple_sets([{Arity, Tuples1}|Ts1], [{Arity, Tuples2}|Ts2], Acc, Mode) -> case inf_tuples_in_sets(Tuples1, Tuples2, Mode) of - [] -> inf_tuple_sets(Left1, Left2, Acc, Mode); - NewTuples -> inf_tuple_sets(Left1, Left2, [{Arity, NewTuples}|Acc], Mode) + [] -> inf_tuple_sets(Ts1, Ts2, Acc, Mode); + [?tuple_set([{Arity, NewTuples}])] -> + inf_tuple_sets(Ts1, Ts2, [{Arity, NewTuples}|Acc], Mode); + NewTuples -> inf_tuple_sets(Ts1, Ts2, [{Arity, NewTuples}|Acc], Mode) end; inf_tuple_sets([{Arity1, _}|Ts1] = L1, [{Arity2, _}|Ts2] = L2, Acc, Mode) -> if Arity1 < Arity2 -> inf_tuple_sets(Ts1, L2, Acc, Mode); @@ -2766,7 +2801,9 @@ t_subtract_list(T, []) -> -spec t_subtract(erl_type(), erl_type()) -> erl_type(). t_subtract(_, ?any) -> ?none; +t_subtract(_, ?var(_)) -> ?none; t_subtract(?any, _) -> ?any; +t_subtract(?var(_) = T, _) -> T; t_subtract(T, ?unit) -> T; t_subtract(?unit, _) -> ?unit; t_subtract(?none, _) -> ?none; @@ -2820,7 +2857,7 @@ t_subtract(?list(Contents1, Termination1, Size1) = T, true -> case {Size1, Size2} of {?nonempty_qual, ?unknown_qual} -> ?none; - {?unknown_qual, ?nonempty_qual} -> Termination1; + {?unknown_qual, ?nonempty_qual} -> ?nil; {S, S} -> ?none end; false -> @@ -2922,7 +2959,7 @@ t_subtract(T, ?product(_)) -> T; t_subtract(?union(U1), ?union(U2)) -> subtract_union(U1, U2); -t_subtract(T1, T2) -> +t_subtract(T1, T2) -> ?union(U1) = force_union(T1), ?union(U2) = force_union(T2), subtract_union(U1, U2). |