diff options
Diffstat (limited to 'lib/hipe')
| -rw-r--r-- | lib/hipe/cerl/erl_types.erl | 224 |
1 files changed, 134 insertions, 90 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index af34e355bb..329a71b099 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -645,15 +645,16 @@ decorate_with_opaque(Type, ?opaque(Set2), Opaques) -> end. decoration([#opaque{struct = S} = Opaque|OpaqueTypes], Type, Opaques, - NewOpaqueTypes, All) -> + NewOpaqueTypes0, All) -> IsOpaque = is_opaque_type2(Opaque, Opaques), I = t_inf(Type, S), - case not IsOpaque orelse t_is_none(I = t_inf(Type, S)) of - true -> decoration(OpaqueTypes, Type, Opaques, NewOpaqueTypes, All); + case not IsOpaque orelse t_is_none(I) of + true -> decoration(OpaqueTypes, Type, Opaques, NewOpaqueTypes0, All); false -> NewOpaque = Opaque#opaque{struct = decorate(I, S, Opaques)}, NewAll = All orelse t_is_equal(I, Type), - decoration(OpaqueTypes, Type, Opaques, [NewOpaque|NewOpaqueTypes], NewAll) + NewOpaqueTypes = [NewOpaque|NewOpaqueTypes0], + decoration(OpaqueTypes, Type, Opaques, NewOpaqueTypes, NewAll) end; decoration([], _Type, _Opaques, NewOpaqueTypes, All) -> {NewOpaqueTypes, All}. @@ -733,13 +734,14 @@ t_opaque_from_records(RecDict) -> end end, RecDict), OpaqueTypeDict = - dict:map(fun({opaque, Name, _Arity}, {Module, Type, ArgNames}) -> - case ArgNames of - [] -> - t_opaque(Module, Name, [], t_from_form(Type, RecDict)); - _ -> - throw({error,"Polymorphic opaque types not supported yet"}) - end + dict:map(fun({opaque, Name, _Arity}, {Module, _Type, ArgNames}) -> + %% Args = args_to_types(ArgNames), + %% List = lists:zip(ArgNames, Args), + %% TmpVarDict = dict:from_list(List), + %% Rep = t_from_form(Type, RecDict, TmpVarDict), + Rep = t_none(), % not used for anything right now + Args = [t_any() || _ <- ArgNames], + skip_opaque_alias(Rep, Module, Name, Args) end, OpaqueRecDict), [OpaqueType || {_Key, OpaqueType} <- dict:to_list(OpaqueTypeDict)]. @@ -833,8 +835,12 @@ t_solve_remote(?union(List), ET, R, C) -> {t_sup(RL), RR}; t_solve_remote(T, _ET, _R, _C) -> {T, []}. -t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args} = RemType, +t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args0} = RemType, ET, R, C) -> + Args = lists:map(fun(A) -> + {Arg, _} = t_solve_remote(A, ET, R, C), + Arg + end, Args0), ArgsLen = length(Args), case dict:find(RemMod, R) of error -> @@ -880,9 +886,7 @@ t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args} = RemType, true -> t_limit(NewRep, ?REC_TYPE_LIMIT); false -> NewRep end, - {t_from_form({opaque, -1, Name, {Mod, Args, RT1}}, - RemDict, TmpVarDict), - RetRR}; + {skip_opaque_alias(RT1, Mod, Name, Args), RetRR}; error -> Msg = io_lib:format("Unable to find remote type ~w:~w()\n", [RemMod, Name]), @@ -1962,16 +1966,20 @@ t_array() -> t_tuple([t_atom('array'), t_sup([t_atom('undefined'), t_non_neg_integer()]), t_sup([t_atom('undefined'), t_non_neg_integer()]), - t_any(), t_any()])). + t_any(), + t_any()])). -spec t_dict() -> erl_type(). t_dict() -> t_opaque(dict, dict, [], t_tuple([t_atom('dict'), - t_non_neg_integer(), t_non_neg_integer(), - t_non_neg_integer(), t_non_neg_integer(), - t_non_neg_integer(), t_non_neg_integer(), + t_sup([t_atom('undefined'), t_non_neg_integer()]), + t_sup([t_atom('undefined'), t_non_neg_integer()]), + t_sup([t_atom('undefined'), t_non_neg_integer()]), + t_sup([t_atom('undefined'), t_non_neg_integer()]), + t_sup([t_atom('undefined'), t_non_neg_integer()]), + t_sup([t_atom('undefined'), t_non_neg_integer()]), t_sup([t_atom('undefined'), t_tuple()]), t_sup([t_atom('undefined'), t_tuple()])])). @@ -2082,11 +2090,11 @@ t_has_var(?tuple(Elements, _, _)) -> t_has_var_list(Elements); t_has_var(?tuple_set(_) = T) -> t_has_var_list(t_tuple_subtypes(T)); -%% t_has_var(?opaque(_)=T) -> -%% %% "Polymorphic opaque types not supported yet" -%% t_has_var(t_opaque_structure(T)); -%% t_has_var(?union(_) = U) -> -%% exit(flat_format("Union happens in t_has_var/1 ~p\n",[U])); +t_has_var(?opaque(Set)) -> + %% Assume variables in 'args' are also present i 'struct' + t_has_var_list([O#opaque.struct || O <- set_to_list(Set)]); +t_has_var(?union(List)) -> + t_has_var_list(List); t_has_var(_) -> false. -spec t_has_var_list([erl_type()]) -> boolean(). @@ -2117,9 +2125,10 @@ t_collect_vars(?tuple(Types, _, _), Acc) -> t_collect_vars(?tuple_set(_) = TS, Acc) -> lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc, t_tuple_subtypes(TS)); -%% t_collect_vars(?opaque(_)=T, Acc) -> -%% %% "Polymorphic opaque types not supported yet" -%% t_collect_vars(t_opaque_structure(T), Acc); +t_collect_vars(?opaque(Set), Acc) -> + %% Assume variables in 'args' are also present i 'struct' + lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc, + [O#opaque.struct || O <- set_to_list(Set)]); t_collect_vars(_, Acc) -> Acc. @@ -2442,8 +2451,8 @@ sup_opaque(List) -> ?opaque(ordsets:from_list(L)). sup_opaq(L0) -> - L1 = [{{Mod,Name}, T} || - #opaque{mod = Mod, name = Name}=T <- L0], + L1 = [{{Mod,Name,Args}, T} || + #opaque{mod = Mod, name = Name, args = Args}=T <- L0], F = family(L1), [supl(Ts) || {_, Ts} <- F]. @@ -2809,31 +2818,35 @@ inf_collect(_T1, [], _Opaques, OpL) -> OpL. combine(S, T1, T2) -> - #opaque{mod = Mod1, name = Name1} = T1, - #opaque{mod = Mod2, name = Name2} = T2, - case {Mod1, Name1} =:= {Mod2, Name2} of - true -> [comb(Mod1, Name1, S, T1)]; - false -> [comb(Mod1, Name1, S, T1), comb(Mod2, Name2, S, T2)] + #opaque{mod = Mod1, name = Name1, args = Args1} = T1, + #opaque{mod = Mod2, name = Name2, args = Args2} = T2, + case is_same_type_name({Mod1, Name1, Args1}, {Mod2, Name2, Args2}) of + true -> [comb(Mod1, Name1, Args1, S, T1)]; + false -> [comb(Mod1, Name1, Args1, S, T1), comb(Mod2, Name2, Args2, S, T2)] end. -comb(Mod, Name, S, T) -> - case is_same_name(Mod, Name, S) of +comb(Mod, Name, Args, S, T) -> + case is_same_name(Mod, Name, Args, S) of true -> S; false -> T#opaque{struct = S} end. -is_same_name(Mod, Name, ?opaque([#opaque{mod = Mod, name = Name}])) -> true; -is_same_name(_Mod, _Name, _Opaque) -> false. +is_same_name(Mod, Name, Args, + ?opaque([#opaque{mod = Mod, name = Name, args = Args}])) -> + true; +is_same_name(_, _, _, _) -> false. %% Combining two lists this way can be very time consuming... +%% Note: two parameterized opaque types are not the same if their +%% actual parameters differ inf_opaque(Set1, Set2, Opaques) -> List1 = inf_look_up(Set1, 1, Opaques), List2 = inf_look_up(Set2, 2, Opaques), List0 = [combine(Inf, T1, T2) || - {Is1, ModName1, T1} <- List1, - {Is2, ModName2, T2} <- List2, - not t_is_none(Inf = inf_opaque_types(Is1, ModName1, T1, - Is2, ModName2, T2, + {Is1, ModNameArgs1, T1} <- List1, + {Is2, ModNameArgs2, T2} <- List2, + not t_is_none(Inf = inf_opaque_types(Is1, ModNameArgs1, T1, + Is2, ModNameArgs2, T2, Opaques))], List = lists:sort(lists:append(List0)), sup_opaque(List). @@ -2841,18 +2854,22 @@ inf_opaque(Set1, Set2, Opaques) -> %% Optimization: do just one lookup. inf_look_up(Set, Pos, Opaques) -> [{Opaques =:= 'universe' orelse inf_is_opaque_type2(T, Pos, Opaques), - {M, N}, T} || - #opaque{mod = M, name = N} = T <- set_to_list(Set)]. + {M, N, Args}, T} || + #opaque{mod = M, name = N, args = Args} = T <- set_to_list(Set)]. inf_is_opaque_type2(T, Pos, {match, Opaques}) -> is_opaque_type2(T, Opaques) orelse throw(Pos); inf_is_opaque_type2(T, _Pos, Opaques) -> is_opaque_type2(T, Opaques). -inf_opaque_types(IsOpaque1, ModName1, T1, IsOpaque2, ModName2, T2, Opaques) -> +inf_opaque_types(IsOpaque1, ModNameArgs1, T1, + IsOpaque2, ModNameArgs2, T2, Opaques) -> #opaque{struct = S1}=T1, #opaque{struct = S2}=T2, - case Opaques =:= 'universe' orelse ModName1 =:= ModName2 of + case + Opaques =:= 'universe' orelse + is_same_type_name(ModNameArgs1, ModNameArgs2) + of true -> t_inf(S1, S2, Opaques); false -> case {IsOpaque1, IsOpaque2} of @@ -3060,11 +3077,13 @@ t_subst_dict(?tuple(Elements, _Arity, _Tag), Dict) -> t_tuple([t_subst_dict(E, Dict) || E <- Elements]); t_subst_dict(?tuple_set(_) = TS, Dict) -> t_sup([t_subst_dict(T, Dict) || T <- t_tuple_subtypes(TS)]); -%% t_subst_dict(?opaque(Es), Dict) -> -%% %% "Polymorphic opaque types not supported yet" -%% List = [Opaque#opaque{struct = t_subst_dict(S, Dict)} || -%% Opaque = #opaque{struct = S} <- set_to_list(Es)], -%% ?opaque(ordsets:from_list(List)); +t_subst_dict(?opaque(Es), Dict) -> + List = [Opaque#opaque{args = [t_subst_dict(Arg, Dict) || Arg <- Args], + struct = t_subst_dict(S, Dict)} || + Opaque = #opaque{args = Args, struct = S} <- set_to_list(Es)], + ?opaque(ordsets:from_list(List)); +t_subst_dict(?union(List), Dict) -> + ?union([t_subst_dict(E, Dict) || E <- List]); t_subst_dict(T, _Dict) -> T. @@ -3107,11 +3126,13 @@ t_subst_aux(?tuple(Elements, _Arity, _Tag), VarMap) -> t_tuple([t_subst_aux(E, VarMap) || E <- Elements]); t_subst_aux(?tuple_set(_) = TS, VarMap) -> t_sup([t_subst_aux(T, VarMap) || T <- t_tuple_subtypes(TS)]); -%% t_subst_aux(?opaque(Es), VarMap) -> -%% %% "Polymorphic opaque types not supported yet" -%% List = [Opaque#opaque{struct = t_subst_aux(S, VarMap)} || -%% Opaque = #opaque{struct = S} <- set_to_list(Es)], -%% ?opaque(ordsets:from_list(List)); +t_subst_aux(?opaque(Es), VarMap) -> + List = [Opaque#opaque{args = [t_subst_aux(Arg, VarMap) || Arg <- Args], + struct = t_subst_aux(S, VarMap)} || + Opaque = #opaque{args = Args, struct = S} <- set_to_list(Es)], + ?opaque(ordsets:from_list(List)); +t_subst_aux(?union(List), VarMap) -> + ?union([t_subst_aux(E, VarMap) || E <- List]); t_subst_aux(T, _VarMap) -> T. @@ -3232,15 +3253,20 @@ unify_union(List) -> is_opaque_type(?opaque(Elements), Opaques) -> lists:any(fun(Opaque) -> is_opaque_type2(Opaque, Opaques) end, Elements). -is_opaque_type2(#opaque{mod = Mod1, name = Name1}, Opaques) -> +is_opaque_type2(#opaque{mod = Mod1, name = Name1, args = Args1}, Opaques) -> F1 = fun(?opaque(Es)) -> - F2 = fun(#opaque{mod = Mod, name = Name}) -> - Mod1 =:= Mod andalso Name1 =:= Name + F2 = fun(#opaque{mod = Mod, name = Name, args = Args}) -> + is_type_name(Mod1, Name1, Args1, Mod, Name, Args) end, lists:any(F2, Es) end, lists:any(F1, Opaques). +is_type_name(Mod, Name, Args1, Mod, Name, Args2) -> + length(Args1) =:= length(Args2); +is_type_name(Mod1, Name1, Args1, Mod2, Name2, Args2) -> + is_same_type_name2(Mod1, Name1, Args1, Mod2, Name2, Args2). + %% Two functions since t_unify is not symmetric. unify_tuple_set_and_tuple1(?tuple_set([{Arity, List}]), ?tuple(Elements2, Arity, _), VarMap) -> @@ -3885,8 +3911,8 @@ t_to_string(?identifier(Set), _RecDict) -> string:join([flat_format("~w()", [T]) || T <- set_to_list(Set)], " | ") end; t_to_string(?opaque(Set), RecDict) -> - string:join([opaque_type(Mod, Name, S, RecDict) || - #opaque{mod = Mod, name = Name, struct = S} + string:join([opaque_type(Mod, Name, Args, S, RecDict) || + #opaque{mod = Mod, name = Name, struct = S, args = Args} <- set_to_list(Set)], " | "); t_to_string(?matchstate(Pres, Slots), RecDict) -> @@ -4059,11 +4085,14 @@ union_sequence(Types, RecDict) -> string:join(List, " | "). -ifdef(DEBUG). -opaque_type(Mod, Name, S, RecDict) -> - opaque_name(Mod, Name, t_to_string(S, RecDict)). +opaque_type(Mod, Name, _Args, S, RecDict) -> + ArgsString = "[ARGS:" ++ comma_sequence(_Args, RecDict) ++ "]", + String = t_to_string(S, RecDict), + opaque_name(Mod, Name, ArgsString ++ String). -else. -opaque_type(Mod, Name, _S, _RecDict) -> - opaque_name(Mod, Name, ""). +opaque_type(Mod, Name, Args, _S, RecDict) -> + ArgsString = comma_sequence(Args, RecDict), + opaque_name(Mod, Name, ArgsString). -endif. opaque_name(Mod, Name, Extra) -> @@ -4288,18 +4317,19 @@ t_from_form({type, _L, union, Args}, TypeNames, RecDict, VarDict) -> {L, R} = list_from_form(Args, TypeNames, RecDict, VarDict), {t_sup(L), R}; t_from_form({type, _L, Name, Args}, TypeNames, RecDict, VarDict) -> + type_from_form(Name, Args, TypeNames, RecDict, VarDict); +t_from_form({opaque, _L, Name, {Mod, Args, Rep}}, _TypeNames, + _RecDict, _VarDict) -> + {t_opaque(Mod, Name, Args, Rep), []}. + +type_from_form(Name, Args, TypeNames, RecDict, VarDict) -> ArgsLen = length(Args), + ArgTypes = forms_to_types(Args, TypeNames, RecDict, VarDict), case lookup_type(Name, ArgsLen, RecDict) of {type, {_Module, Type, ArgNames}} -> case can_unfold_more({type, Name}, TypeNames) of true -> - List = lists:zipwith( - fun(ArgName, ArgType) -> - {Ttemp, _R} = t_from_form(ArgType, TypeNames, - RecDict, VarDict), - {ArgName, Ttemp} - end, - ArgNames, Args), + List = lists:zip(ArgNames, ArgTypes), TmpVarDict = dict:from_list(List), {T, R} = t_from_form(Type, [{type, Name}|TypeNames], RecDict, TmpVarDict), @@ -4313,13 +4343,7 @@ t_from_form({type, _L, Name, Args}, TypeNames, RecDict, VarDict) -> {Rep, Rret} = case can_unfold_more({opaque, Name}, TypeNames) of true -> - List = lists:zipwith( - fun(ArgName, ArgType) -> - {Ttemp, _R} = t_from_form(ArgType, TypeNames, - RecDict, VarDict), - {ArgName, Ttemp} - end, - ArgNames, Args), + List = lists:zip(ArgNames, ArgTypes), TmpVarDict = dict:from_list(List), {T, R} = t_from_form(Type, [{opaque, Name}|TypeNames], RecDict, TmpVarDict), @@ -4329,20 +4353,21 @@ t_from_form({type, _L, Name, Args}, TypeNames, RecDict, VarDict) -> end; false -> {t_any(), [{opaque, Name}]} end, - Tret = t_from_form({opaque, -1, Name, {Module, Args, Rep}}, - RecDict, VarDict), - {Tret, Rret}; + Args2 = [subst_all_vars_to_any(ArgType) || ArgType <- ArgTypes], + {skip_opaque_alias(Rep, Module, Name, Args2), Rret}; error -> Msg = io_lib:format("Unable to find type ~w/~w\n", [Name, ArgsLen]), throw({error, Msg}) - end; -t_from_form({opaque, _L, Name, {Mod, Args, Rep}}, _TypeNames, - _RecDict, _VarDict) -> - case Args of - [] -> {t_opaque(Mod, Name, Args, Rep), []}; - _ -> throw({error, "Polymorphic opaque types not supported yet"}) end. +forms_to_types(Forms, TypeNames, RecDict, VarDict) -> + {Types, _} = list_from_form(Forms, TypeNames, RecDict, VarDict), + Types. + +skip_opaque_alias(?opaque(_) = T, _Mod, _Name, _Args) -> T; +skip_opaque_alias(T, Module, Name, Args) -> + t_opaque(Module, Name, Args, T). + record_from_form({atom, _, Name}, ModFields, TypeNames, RecDict, VarDict) -> case can_unfold_more({record, Name}, TypeNames) of true -> @@ -4403,8 +4428,10 @@ build_field_dict([], _TypeNames, _RecDict, _VarDict, Acc) -> get_mod_record([{FieldName, DeclType}|Left1], [{FieldName, ModType}|Left2], Acc) -> - case t_is_var(ModType) orelse t_is_remote(ModType) orelse - t_is_subtype(ModType, DeclType) of + ModTypeNoVars = subst_all_vars_to_any(ModType), + case + t_is_remote(ModTypeNoVars) orelse t_is_subtype(ModTypeNoVars, DeclType) + of false -> {error, FieldName}; true -> get_mod_record(Left1, Left2, [{FieldName, ModType}|Acc]) end; @@ -4627,6 +4654,23 @@ do_opaque(?union(List) = Type, Opaques, Pred) -> do_opaque(Type, _Opaques, Pred) -> Pred(Type). +is_same_type_name({Mod, Name, Args}, {Mod, Name, Args}) -> true; +is_same_type_name({Mod1, Name1, Args1}, {Mod2, Name2, Args2}) -> + is_same_type_name2(Mod1, Name1, Args1, Mod2, Name2, Args2). + +%% Compatibility. In Erlang/OTP 17 the pre-defined opaque types +%% digraph() and so on can be used, but there are also new types such +%% as digraph:graph() with the exact same meaning. In Erlang/OTP R18.0 +%% all but the last clause can be removed. + +is_same_type_name2(digraph, digraph, [], digraph, graph, []) -> true; +is_same_type_name2(digraph, graph, [], digraph, digraph, []) -> true; +is_same_type_name2(gb_sets, gb_set, [], gb_sets, set, [?any]) -> true; +is_same_type_name2(gb_sets, set, [?any], gb_sets, gb_set, []) -> true; +is_same_type_name2(gb_trees, gb_tree, [], gb_trees, tree, [?any, ?any]) -> true; +is_same_type_name2(gb_trees, tree, [?any, ?any], gb_trees, gb_tree, []) -> true; +is_same_type_name2(_, _, _, _, _, _) -> false. + %% ----------------------------------- %% Set %% |