diff options
Diffstat (limited to 'lib/dialyzer/src/dialyzer_typesig.erl')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_typesig.erl | 280 |
1 files changed, 156 insertions, 124 deletions
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl index 4d650592e2..d03326ec97 100644 --- a/lib/dialyzer/src/dialyzer_typesig.erl +++ b/lib/dialyzer/src/dialyzer_typesig.erl @@ -1,8 +1,4 @@ %% -*- erlang-indent-level: 2 -*- -%%----------------------------------------------------------------------- -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2006-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -15,9 +11,6 @@ %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. -%% -%% %CopyrightEnd% -%% %%%------------------------------------------------------------------- %%% File : dialyzer_typesig.erl @@ -48,7 +41,7 @@ t_is_float/1, t_is_fun/1, t_is_integer/1, t_non_neg_integer/0, t_is_list/1, t_is_nil/1, t_is_none/1, t_is_number/1, - t_is_singleton/1, + t_is_singleton/1, t_is_none_or_unit/1, t_limit/2, t_list/0, t_list/1, t_list_elements/1, t_nonempty_list/1, t_maybe_improper_list/0, @@ -88,7 +81,7 @@ -record(constraint_list, {type :: 'conj' | 'disj', list :: [constr()], deps :: deps(), - masks = maps:new() :: #{dep() => mask()}, + masks :: #{dep() => mask()} | 'undefined', id :: {'list', dep()} | 'undefined'}). -type constraint_list() :: #constraint_list{}. @@ -103,10 +96,12 @@ -type typesig_funmap() :: #{type_var() => type_var()}. --type prop_types() :: dict:dict(label(), erl_types:erl_type()). +-type prop_types() :: orddict:orddict(label(), erl_types:erl_type()). +-type dict_prop_types() :: dict:dict(label(), erl_types:erl_type()). -record(state, {callgraph :: dialyzer_callgraph:callgraph() | 'undefined', + cserver :: dialyzer_codeserver:codeserver(), cs = [] :: [constr()], cmap = maps:new() :: #{type_var() => constr()}, fun_map = maps:new() :: typesig_funmap(), @@ -119,8 +114,8 @@ self_rec :: 'false' | erl_types:erl_type(), plt :: dialyzer_plt:plt() | 'undefined', - prop_types = dict:new() :: prop_types(), - records = maps:new() :: types(), + prop_types = dict:new() :: dict_prop_types(), + mod_records = [] :: [{module(), types()}], scc = [] :: ordsets:ordset(type_var()), mfas :: [mfa()], solvers = [] :: [solver()] @@ -145,9 +140,11 @@ -ifdef(DEBUG). -define(debug(__String, __Args), io:format(__String, __Args)). -define(mk_fun_var(Fun, Vars), mk_fun_var(?LINE, Fun, Vars)). +-define(pp_map(S, M), pp_map(S, M)). -else. -define(debug(__String, __Args), ok). -define(mk_fun_var(Fun, Vars), mk_fun_var(Fun, Vars)). +-define(pp_map(S, M), ok). -endif. %% ============================================================================ @@ -184,16 +181,13 @@ analyze_scc(SCC, NextLabel, CallGraph, CServer, Plt, PropTypes, Solvers0) -> State1 = new_state(SCC, NextLabel, CallGraph, CServer, Plt, PropTypes, Solvers), DefSet = add_def_list(maps:values(State1#state.name_map), sets:new()), - ModRecs = [{M, dialyzer_codeserver:lookup_mod_records(M, CServer)} || - M <- lists:usort([M || {M, _, _} <- SCC])], - State2 = traverse_scc(SCC, CServer, DefSet, ModRecs, State1), + State2 = traverse_scc(SCC, CServer, DefSet, State1), State3 = state__finalize(State2), - erlang:garbage_collect(), Funs = state__scc(State3), pp_constrs_scc(Funs, State3), constraints_to_dot_scc(Funs, State3), T = solve(Funs, State3), - dict:from_list(maps:to_list(T)). + orddict:from_list(maps:to_list(T)). solvers([]) -> [v2]; solvers(Solvers) -> Solvers. @@ -204,15 +198,14 @@ solvers(Solvers) -> Solvers. %% %% ============================================================================ -traverse_scc([{M,_,_}=MFA|Left], Codeserver, DefSet, ModRecs, AccState) -> +traverse_scc([{M,_,_}=MFA|Left], Codeserver, DefSet, AccState) -> + TmpState1 = state__set_module(AccState, M), Def = dialyzer_codeserver:lookup_mfa_code(MFA, Codeserver), - {M, Rec} = lists:keyfind(M, 1, ModRecs), - TmpState1 = state__set_rec_dict(AccState, Rec), DummyLetrec = cerl:c_letrec([Def], cerl:c_atom(foo)), TmpState2 = state__new_constraint_context(TmpState1), {NewAccState, _} = traverse(DummyLetrec, DefSet, TmpState2), - traverse_scc(Left, Codeserver, DefSet, ModRecs, NewAccState); -traverse_scc([], _Codeserver, _DefSet, _ModRecs, AccState) -> + traverse_scc(Left, Codeserver, DefSet, NewAccState); +traverse_scc([], _Codeserver, _DefSet, AccState) -> AccState. traverse(Tree, DefinedVars, State) -> @@ -478,12 +471,11 @@ traverse(Tree, DefinedVars, State) -> true -> %% Check if a record is constructed. Arity = length(Fields), - Records = State2#state.records, - case lookup_record(Records, cerl:atom_val(Tag), Arity) of - error -> {State2, TupleType}; - {ok, RecType} -> - State3 = state__store_conj(TupleType, sub, RecType, State2), - {State3, TupleType} + case lookup_record(State2, cerl:atom_val(Tag), Arity) of + {error, State3} -> {State3, TupleType}; + {ok, RecType, State3} -> + State4 = state__store_conj(TupleType, sub, RecType, State3), + {State4, TupleType} end; false -> {State2, TupleType} end; @@ -536,13 +528,14 @@ traverse(Tree, DefinedVars, State) -> false -> t_any(); true -> MT = t_inf(lookup_type(MapVar, Map), t_map()), - case t_is_none(MT) of + case t_is_none_or_unit(MT) of true -> t_none(); false -> DisjointFromKeyType = fun(ShadowKey) -> - t_is_none(t_inf(lookup_type(ShadowKey, Map), - KeyType)) + ST = t_inf(lookup_type(ShadowKey, Map), + KeyType), + t_is_none_or_unit(ST) end, case lists:all(DisjointFromKeyType, ShadowKeys) of true -> t_map_get(KeyType, MT); @@ -575,7 +568,8 @@ traverse(Tree, DefinedVars, State) -> case cerl:is_literal(OpTree) andalso cerl:concrete(OpTree) =:= exact of true -> - case t_is_none(t_inf(ShadowedKeys, KeyType)) of + ST = t_inf(ShadowedKeys, KeyType), + case t_is_none_or_unit(ST) of true -> t_map_put({KeyType, t_any()}, AccType); false -> @@ -779,7 +773,7 @@ handle_call(Call, DefinedVars, State) -> {ok, Var} -> %% This is part of the SCC currently analyzed. %% Intercept and change this to an apply instead. - ?debug("Found the call to ~w\n", [MFA]), + ?debug("Found the call to ~tw\n", [MFA]), Label = cerl_trees:get_label(Call), Apply = cerl:ann_c_apply([{label, Label}], Var, Args), traverse(Apply, DefinedVars, State) @@ -1448,7 +1442,6 @@ get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) -> mk_constraint(Var, sub, ArgV)]); get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) -> %% TODO: Revise this to make it precise for Tag and Arity. - Records = State#state.records, ArgFun = fun(Map) -> case t_is_any_atom(true, lookup_type(Dst, Map)) of @@ -1465,10 +1458,10 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) -> GenRecord = t_tuple([TagType|AnyElems]), case t_atom_vals(TagType) of [TagVal] -> - case lookup_record(Records, TagVal, ArityVal - 1) of - {ok, Type} -> + case lookup_record(State, TagVal, ArityVal - 1) of + {ok, Type, _NewState} -> Type; - error -> GenRecord + {error, _NewState} -> GenRecord end; _ -> GenRecord end; @@ -1797,11 +1790,11 @@ get_bif_test_constr(Dst, Arg, Type, _State) -> %%============================================================================= solve([Fun], State) -> - ?debug("============ Analyzing Fun: ~w ===========\n", + ?debug("============ Analyzing Fun: ~tw ===========\n", [debug_lookup_name(Fun)]), solve_fun(Fun, map_new(), State); solve([_|_] = SCC, State) -> - ?debug("============ Analyzing SCC: ~w ===========\n", + ?debug("============ Analyzing SCC: ~tw ===========\n", [[debug_lookup_name(F) || F <- SCC]]), Users = comp_users(SCC, State), solve_scc(SCC, map_new(), State, Users, _ToSolve=SCC, false). @@ -1837,13 +1830,13 @@ solve_scc(SCC, Map, State, Users, ToSolve, TryingUnit) -> erase_type(t_var_name(Fun), AccFunMap) end, Map, ToSolve), Map1 = enter_type_lists(Vars, RecTypes, CleanMap), - ?debug("Checking SCC: ~w\n", [[debug_lookup_name(F) || F <- SCC]]), + ?debug("Checking SCC: ~tw\n", [[debug_lookup_name(F) || F <- SCC]]), SolveFun = fun(X, Y) -> scc_fold_fun(X, Y, State) end, Map2 = lists:foldl(SolveFun, Map1, ToSolve), Updated = updated_vars_only(Vars, Map, Map2), case Updated =:= [] of true -> - ?debug("SCC ~w reached fixpoint\n", [SCC]), + ?debug("SCC ~tw reached fixpoint\n", [SCC]), NewTypes = unsafe_lookup_type_list(Funs, Map2), case erl_types:any_none([t_fun_range(T) || T <- NewTypes]) andalso TryingUnit =:= false of @@ -1859,7 +1852,7 @@ solve_scc(SCC, Map, State, Users, ToSolve, TryingUnit) -> Map2 end; false -> - ?debug("SCC ~w did not reach fixpoint\n", [SCC]), + ?debug("SCC ~tw did not reach fixpoint\n", [SCC]), ToSolve1 = affected(Updated, Users), solve_scc(SCC, Map2, State, Users, ToSolve1, TryingUnit) end. @@ -1883,8 +1876,8 @@ scc_fold_fun(F, FunMap, State) -> error -> enter_type(F, NewType, FunMap) end, - ?debug("Done solving for function ~w :: ~s\n", [debug_lookup_name(F), - format_type(NewType)]), + ?debug("Done solving for function ~tw :: ~ts\n", [debug_lookup_name(F), + format_type(NewType)]), NewFunMap. solve(Fun, Cs, FunMap, State) -> @@ -1903,7 +1896,7 @@ solver(Solver, SolveFun) -> [Solver, _R, 60]), throw(error) catch E:R -> - io:format("Solver ~w failed: ~w:~p\n ~p\n", + io:format("Solver ~w failed: ~w:~p\n ~tp\n", [Solver, E, R, erlang:get_stacktrace()]), throw(error) end. @@ -1925,8 +1918,8 @@ check_solutions([{S1,Map1,_Time1}|Maps], Fun, S, Map) -> check_solutions(Maps, Fun, S1, Map1); false -> ?debug("Constraint solvers do not agree on ~w\n", [Fun]), - pp_map(atom_to_list(S), Map), - pp_map(atom_to_list(S1), Map1), + ?pp_map(atom_to_list(S), Map), + ?pp_map(atom_to_list(S1), Map1), io:format("A bug was found. Please report it, and use the option " "`--solver v1' until the bug has been fixed.\n"), throw(error) @@ -1940,9 +1933,9 @@ sane_maps(Map1, Map2, Keys, _S1, _S2) -> true -> true; false -> ?debug("Constraint solvers do not agree on ~w\n", [Key]), - ?debug("~w: ~s\n", + ?debug("~w: ~ts\n", [_S1, format_type(unsafe_lookup_type(Key, Map1))]), - ?debug("~w: ~s\n", + ?debug("~w: ~ts\n", [_S2, format_type(unsafe_lookup_type(Key, Map2))]), false end @@ -1974,8 +1967,8 @@ v2_solve(#constraint_ref{id = Id}, Map, V2State) -> v2_solve_reference(Id, Map, V2State). v2_solve_reference(Id, Map, V2State0) -> - ?debug("Checking ref to fun: ~w\n", [debug_lookup_name(Id)]), - pp_map("Map", Map), + ?debug("Checking ref to fun: ~tw\n", [debug_lookup_name(Id)]), + ?pp_map("Map", Map), pp_constr_data("solve_ref", V2State0), Map1 = restore_local_map(V2State0, Id, Map), State = V2State0#v2_state.state, @@ -1988,7 +1981,7 @@ v2_solve_reference(Id, Map, V2State0) -> {FunType, V2State} = case Res of {error, V2State1} -> - ?debug("Error solving for function ~p\n", [debug_lookup_name(Id)]), + ?debug("Error solving for function ~tp\n", [debug_lookup_name(Id)]), Arity = state__fun_arity(Id, State), FunType0 = case state__prop_domain(t_var_name(Id), State) of @@ -1997,12 +1990,12 @@ v2_solve_reference(Id, Map, V2State0) -> end, {FunType0, V2State1}; {ok, NewMap, V2State1, U} -> - ?debug("Done solving fun: ~p\n", [debug_lookup_name(Id)]), + ?debug("Done solving fun: ~tp\n", [debug_lookup_name(Id)]), FunType0 = lookup_type(Id, NewMap), V2State2 = save_local_map(V2State1, Id, U, NewMap), {FunType0, V2State2} end, - ?debug("ref Id=~w Assigned ~s\n", [Id, format_type(FunType)]), + ?debug("ref Id=~w Assigned ~ts\n", [Id, format_type(FunType)]), {NewMap1, U1} = enter_var_type(Id, FunType, Map), {NewMap2, U2} = case state__get_rec_var(Id, State) of @@ -2012,10 +2005,10 @@ v2_solve_reference(Id, Map, V2State0) -> {ok, NewMap2, V2State, lists:umerge(U1, U2)}. v2_solve_self_recursive(Cs, Map, Id, RecType0, V2State0) -> - ?debug("Solving self recursive ~w\n", [debug_lookup_name(Id)]), + ?debug("Solving self recursive ~tw\n", [debug_lookup_name(Id)]), State = V2State0#v2_state.state, {ok, RecVar} = state__get_rec_var(Id, State), - ?debug("OldRecType ~s\n", [format_type(RecType0)]), + ?debug("OldRecType ~ts\n", [format_type(RecType0)]), RecType = t_limit(RecType0, ?TYPE_LIMIT), {Map1, U0} = enter_var_type(RecVar, RecType, Map), V2State1 = save_updated_vars1(V2State0, Cs, U0), % Probably not necessary @@ -2031,7 +2024,7 @@ v2_solve_self_recursive(Cs, Map, Id, RecType0, V2State0) -> Error end; {ok, NewMap, V2State, U} -> - pp_map("recursive finished", NewMap), + ?pp_map("recursive finished", NewMap), NewRecType = unsafe_lookup_type(Id, NewMap), case is_equal(NewRecType, RecType0) of true -> @@ -2049,7 +2042,7 @@ enter_var_type(Var, Type, Map0) -> v2_solve_disjunct(Disj, Map, V2State0) -> #constraint_list{type = disj, id = _Id, list = Cs, masks = Masks} = Disj, ?debug("disjunct Id=~w~n", [_Id]), - pp_map("Map", Map), + ?pp_map("Map", Map), pp_constr_data("disjunct", V2State0), case get_flags(V2State0, Disj) of {V2State1, failed_list} -> {error, V2State1}; % cannot happen @@ -2077,7 +2070,7 @@ v2_solve_disjunct(Disj, Map, V2State0) -> U1 = [V || V <- U0, var_occurs_everywhere(V, Masks, NotFailed)], NewMap = join_maps(U1, MapL, Map), - pp_map("NewMap", NewMap), + ?pp_map("NewMap", NewMap), U = updated_vars_only(U1, Map, NewMap), ?debug("disjunct finished _Id=~w\n", [_Id]), {ok, NewMap, V2State, U} @@ -2100,7 +2093,7 @@ v2_solve_disj([I|Is], [C|Cs], I, Map0, V2State0, UL, MapL, Eval, Uneval, {ok, Map, V2State1, U} -> ?debug("disj I=~w U=~w~n", [I, U]), V2State = save_local_map(V2State1, Id, U, Map), - pp_map("DMap", Map), + ?pp_map("DMap", Map), v2_solve_disj(Is, Cs, I+1, Map0, V2State, [U|UL], [Map|MapL], [I|Eval], Uneval, Failed0) end; @@ -2126,9 +2119,9 @@ save_local_map(#v2_state{constr_data = ConData}=V2State, Id, U, Map) -> end, ?debug("save local map Id=~w:\n", [Id]), Part = lists:ukeymerge(1, lists:keysort(1, Part0), Part1), - pp_map("New Part", maps:from_list(Part0)), - pp_map("Old Part", maps:from_list(Part1)), - pp_map(" => Part", maps:from_list(Part)), + ?pp_map("New Part", maps:from_list(Part0)), + ?pp_map("Old Part", maps:from_list(Part1)), + ?pp_map(" => Part", maps:from_list(Part)), V2State#v2_state{constr_data = maps:put(Id, {Part,[]}, ConData)}. restore_local_map(#v2_state{constr_data = ConData}, Id, Map0) -> @@ -2139,10 +2132,10 @@ restore_local_map(#v2_state{constr_data = ConData}, Id, Map0) -> {ok, {Part0,U}} -> Part = [KV || {K,_V} = KV <- Part0, not lists:member(K, U)], ?debug("restore local map Id=~w U=~w\n", [Id, U]), - pp_map("Part", maps:from_list(Part)), - pp_map("Map0", Map0), + ?pp_map("Part", maps:from_list(Part)), + ?pp_map("Map0", Map0), Map = lists:foldl(fun({K,V}, D) -> maps:put(K, V, D) end, Map0, Part), - pp_map("Map", Map), + ?pp_map("Map", Map), Map end. @@ -2298,7 +2291,7 @@ pp_constr_data(_Tag, #v2_state{constr_data = D}) -> case _PartU of {_Part, _U} -> io:format("Id: ~w Vars: ~w\n", [_Id, _U]), - [pp_map("Part", maps:from_list(_Part)) || _Part =/= []]; + [?pp_map("Part", maps:from_list(_Part)) || _Part =/= []]; failed -> io:format("Id: ~w failed list\n", [_Id]) end @@ -2327,7 +2320,7 @@ solve_ref_or_list(#constraint_ref{id = Id, deps = Deps}, error -> {map_new(), false}; {ok, M} -> {M, true} end, - ?debug("Checking ref to fun: ~w\n", [debug_lookup_name(Id)]), + ?debug("Checking ref to fun: ~tw\n", [debug_lookup_name(Id)]), %% Note: mk_constraint_ref() has already removed Id from Deps. The %% reason for doing it there is that it makes it easy for %% calculate_masks() to make the corresponding adjustment for @@ -2349,7 +2342,7 @@ solve_ref_or_list(#constraint_ref{id = Id, deps = Deps}, {NewMapDict, FunType} = case Res of {error, NewMapDict0} -> - ?debug("Error solving for function ~p\n", [debug_lookup_name(Id)]), + ?debug("Error solving for function ~tp\n", [debug_lookup_name(Id)]), Arity = state__fun_arity(Id, State), FunType0 = case state__prop_domain(t_var_name(Id), State) of @@ -2358,11 +2351,11 @@ solve_ref_or_list(#constraint_ref{id = Id, deps = Deps}, end, {NewMapDict0, FunType0}; {ok, NewMapDict0, NewMap} -> - ?debug("Done solving fun: ~p\n", [debug_lookup_name(Id)]), + ?debug("Done solving fun: ~tp\n", [debug_lookup_name(Id)]), FunType0 = lookup_type(Id, NewMap), {NewMapDict0, FunType0} end, - ?debug(" Id=~w Assigned ~s\n", [Id, format_type(FunType)]), + ?debug(" Id=~w Assigned ~ts\n", [Id, format_type(FunType)]), NewMap1 = enter_type(Id, FunType, Map), NewMap2 = case state__get_rec_var(Id, State) of @@ -2384,21 +2377,21 @@ solve_ref_or_list(#constraint_list{type=Type, list = Cs, deps = Deps, id = Id}, true -> case Check andalso maps_are_equal(OldLocalMap, Map, Deps) of true -> - ?debug("~w equal ~w\n", [Type, Id]), + ?debug("~tw equal ~w\n", [Type, Id]), {ok, MapDict, Map}; false -> - ?debug("~w not equal: ~w. Solving\n", [Type, Id]), + ?debug("~tw not equal: ~w. Solving\n", [Type, Id]), solve_clist(Cs, Type, Id, Deps, MapDict, Map, State) end end. solve_self_recursive(Cs, Map, MapDict, Id, RecType0, State) -> - ?debug("Solving self recursive ~w\n", [debug_lookup_name(Id)]), + ?debug("Solving self recursive ~tw\n", [debug_lookup_name(Id)]), {ok, RecVar} = state__get_rec_var(Id, State), - ?debug("OldRecType ~s\n", [format_type(RecType0)]), + ?debug("OldRecType ~ts\n", [format_type(RecType0)]), RecType = t_limit(RecType0, ?TYPE_LIMIT), Map1 = enter_type(RecVar, RecType, erase_type(t_var_name(Id), Map)), - pp_map("Map1", Map1), + ?pp_map("Map1", Map1), case solve_ref_or_list(Cs, Map1, MapDict, State) of {error, _} = Error -> case t_is_none(RecType0) of @@ -2411,7 +2404,7 @@ solve_self_recursive(Cs, Map, MapDict, Id, RecType0, State) -> Error end; {ok, NewMapDict, NewMap} -> - pp_map("NewMap", NewMap), + ?pp_map("NewMap", NewMap), NewRecType = unsafe_lookup_type(Id, NewMap), case is_equal(NewRecType, RecType0) of true -> @@ -2477,7 +2470,7 @@ solve_one_c(#constraint{lhs = Lhs, rhs = Rhs, op = Op}, Map) -> LhsType = lookup_type(Lhs, Map), RhsType = lookup_type(Rhs, Map), Inf = t_inf(LhsType, RhsType), - ?debug("Solving: ~s :: ~s ~w ~s :: ~s\n\tInf: ~s\n", + ?debug("Solving: ~ts :: ~ts ~w ~ts :: ~ts\n\tInf: ~ts\n", [format_type(Lhs), format_type(LhsType), Op, format_type(Rhs), format_type(RhsType), format_type(Inf)]), case t_is_none(Inf) of @@ -2509,14 +2502,14 @@ solve_subtype(Type, Inf, Map) -> {_, List} -> {ok, enter_type_list(List, Map)} catch throw:{mismatch, _T1, _T2} -> - ?debug("Mismatch between ~s and ~s\n", + ?debug("Mismatch between ~ts and ~ts\n", [format_type(_T1), format_type(_T2)]), error end. %% end. report_failed_constraint(_C, _Map) -> - ?debug("+++++++++++\nFailed: ~s :: ~s ~w ~s :: ~s\n+++++++++++\n", + ?debug("+++++++++++\nFailed: ~ts :: ~ts ~w ~ts :: ~ts\n+++++++++++\n", [format_type(_C#constraint.lhs), format_type(lookup_type(_C#constraint.lhs, _Map)), _C#constraint.op, @@ -2574,7 +2567,7 @@ maps_are_equal_1(Map1, Map2, [H|Tail]) -> case is_equal(T1, T2) of true -> maps_are_equal_1(Map1, Map2, Tail); false -> - ?debug("~w: ~s =/= ~s\n", [H, format_type(T1), format_type(T2)]), + ?debug("~w: ~ts =/= ~ts\n", [H, format_type(T1), format_type(T2)]), false end; maps_are_equal_1(_Map1, _Map2, []) -> @@ -2602,7 +2595,7 @@ prune_keys(Map1, Map2, Deps) -> end. enter_type(Key, Val, Map) when is_integer(Key) -> - ?debug("Entering ~s :: ~s\n", [format_type(t_var(Key)), format_type(Val)]), + ?debug("Entering ~ts :: ~ts\n", [format_type(t_var(Key)), format_type(Val)]), %% Keep any() in the map if it is opaque: case is_equal(Val, t_any()) of true -> @@ -2611,7 +2604,7 @@ enter_type(Key, Val, Map) when is_integer(Key) -> LimitedVal = t_limit(Val, ?INTERNAL_TYPE_LIMIT), case is_equal(LimitedVal, Val) of true -> ok; - false -> ?debug("LimitedVal ~s\n", [format_type(LimitedVal)]) + false -> ?debug("LimitedVal ~ts\n", [format_type(LimitedVal)]) end, case maps:find(Key, Map) of {ok, Value} -> @@ -2646,7 +2639,7 @@ enter_type2(Key, Val, Map) -> {Map1, [Key || not is_same(Key, Map, Map1)]}. map_store(Key, Val, Map) -> - ?debug("Storing ~w :: ~s\n", [Key, format_type(Val)]), + ?debug("Storing ~tw :: ~ts\n", [Key, format_type(Val)]), maps:put(Key, Val, Map). erase_type(Key, Map) -> @@ -2710,18 +2703,13 @@ is_same(Key, Map1, Map2) -> is_equal(Type1, Type2) -> t_is_equal(Type1, Type2). -pp_map(_S, _Map) -> - ?debug("\t~s: ~p\n", - [_S, [{X, lists:flatten(format_type(Y))} || - {X, Y} <- lists:keysort(1, maps:to_list(_Map))]]). - %% ============================================================================ %% %% The State. %% %% ============================================================================ -new_state(MFAs, NextLabel, CallGraph, CServer, Plt, PropTypes, Solvers) -> +new_state(MFAs, NextLabel, CallGraph, CServer, Plt, PropTypes0, Solvers) -> List_SCC = [begin {Var, Label} = dialyzer_codeserver:lookup_mfa_var_label(MFA, CServer), @@ -2739,12 +2727,14 @@ new_state(MFAs, NextLabel, CallGraph, CServer, Plt, PropTypes, Solvers) -> end; _Many -> false end, + PropTypes = dict:from_list(PropTypes0), #state{callgraph = CallGraph, name_map = NameMap, next_label = NextLabel, prop_types = PropTypes, plt = Plt, scc = ordsets:from_list(SCC), - mfas = MFAs, self_rec = SelfRec, solvers = Solvers}. + mfas = MFAs, self_rec = SelfRec, solvers = Solvers, + cserver = CServer}. -state__set_rec_dict(State, RecDict) -> - State#state{records = RecDict}. +state__set_module(State, Module) -> + State#state{module = Module}. state__set_in_match(State, Bool) -> State#state{in_match = Bool}. @@ -2854,7 +2844,7 @@ state__add_prop_constrs(Tree, #state{prop_types = PropTypes} = State) -> case erl_types:any_none(ArgTypes) of true -> not_called; false -> - ?debug("Adding propagated constr: ~s for function ~w\n", + ?debug("Adding propagated constr: ~ts for function ~tw\n", [format_type(FunType), debug_lookup_name(mk_var(Tree))]), FunVar = mk_var(Tree), state__store_conj(FunVar, sub, FunType, State) @@ -2983,6 +2973,11 @@ mk_fun_var(Line, Fun, Types) -> Deps = [t_var_name(Var) || Var <- t_collect_vars(t_product(Types))], #fun_var{'fun' = Fun, deps = ordsets:from_list(Deps), origin = Line}. +pp_map(S, Map) -> + ?debug("\t~s: ~p\n", + [S, [{X, lists:flatten(format_type(Y))} || + {X, Y} <- lists:keysort(1, maps:to_list(Map))]]). + -else. -spec mk_fun_var(fun((_) -> erl_types:erl_type()), [erl_types:erl_type()]) -> #fun_var{}. @@ -3215,7 +3210,8 @@ order_fun_constraints(State) -> order_fun_constraints([#constraint_ref{id = Id}|Tail], State) -> Cs = state__get_cs(Id, State), - {[NewCs], State1} = order_fun_constraints([Cs], [], [], State), + {[Cs1], State1} = order_fun_constraints([Cs], [], [], State), + NewCs = Cs1#constraint_list{deps = Cs#constraint_list.deps}, NewState = state__store_constrs(Id, NewCs, State1), order_fun_constraints(Tail, NewState); order_fun_constraints([], State) -> @@ -3223,23 +3219,31 @@ order_fun_constraints([], State) -> order_fun_constraints([#constraint_ref{} = C|Tail], Funs, Acc, State) -> order_fun_constraints(Tail, [C|Funs], Acc, State); -order_fun_constraints([#constraint_list{list = List, type = Type} = C|Tail], +order_fun_constraints([#constraint_list{list = List, + type = Type, + masks = OldMasks} = C|Tail], Funs, Acc, State) -> - {NewList, NewState} = - case Type of - conj -> order_fun_constraints(List, [], [], State); - disj -> - FoldFun = fun(X, AccState) -> - {[NewX], NewAccState} = - order_fun_constraints([X], [], [], AccState), - {NewX, NewAccState} - end, - lists:mapfoldl(FoldFun, State, List) - end, - C1 = update_constraint_list(C, NewList), - Masks = calculate_masks(NewList, 1, []), - NewAcc = [update_masks(C1, Masks)|Acc], - order_fun_constraints(Tail, Funs, NewAcc, NewState); + case OldMasks of + undefined -> + {NewList, NewState} = + case Type of + conj -> order_fun_constraints(List, [], [], State); + disj -> + FoldFun = fun(X, AccState) -> + {[NewX], NewAccState} = + order_fun_constraints([X], [], [], AccState), + {NewX, NewAccState} + end, + lists:mapfoldl(FoldFun, State, List) + end, + NewList2 = reset_deps(NewList, State), + C1 = update_constraint_list(C, NewList2), + Masks = calculate_masks(NewList, 1, []), + NewAcc = [update_masks(C1, Masks)|Acc], + order_fun_constraints(Tail, Funs, NewAcc, NewState); + M when is_map(M) -> + order_fun_constraints(Tail, Funs, [C|Acc], State) + end; order_fun_constraints([#constraint{} = C|Tail], Funs, Acc, State) -> order_fun_constraints(Tail, Funs, [C|Acc], State); order_fun_constraints([], Funs, Acc, State) -> @@ -3249,6 +3253,18 @@ order_fun_constraints([], Funs, Acc, State) -> update_masks(C, Masks) -> C#constraint_list{masks = Masks}. +reset_deps(ConstrList, #state{solvers = Solvers}) -> + case lists:member(v1, Solvers) of + true -> + ConstrList; + false -> + [reset_deps(Constr) || Constr <- ConstrList] + end. + +reset_deps(#constraint{}=C) -> C#constraint{deps = []}; +reset_deps(#constraint_list{}=C) -> C#constraint_list{deps = []}; +reset_deps(#constraint_ref{}=C) -> C#constraint_ref{deps = []}. + calculate_masks([C|Cs], I, L0) -> calculate_masks(Cs, I+1, [{V, I} || V <- get_deps(C)] ++ L0); calculate_masks([], _I, L) -> @@ -3335,15 +3351,25 @@ fold_literal_maybe_match(Tree0, State) -> true -> dialyzer_utils:refold_pattern(Tree1) end. -lookup_record(Records, Tag, Arity) -> - case erl_types:lookup_record(Tag, Arity, Records) of +lookup_record(State, Tag, Arity) -> + #state{module = M, mod_records = ModRecs, cserver = CServer} = State, + {State1, Rec} = + case lists:keyfind(M, 1, ModRecs) of + {M, Rec0} -> + {State, Rec0}; + false -> + Rec0 = dialyzer_codeserver:lookup_mod_records(M, CServer), + NewModRecs = [{M, Rec0}|ModRecs], + {State#state{mod_records = NewModRecs}, Rec0} + end, + case erl_types:lookup_record(Tag, Arity, Rec) of {ok, Fields} -> RecType = t_tuple([t_from_term(Tag)| [FieldType || {_FieldName, _Abstr, FieldType} <- Fields]]), - {ok, RecType}; + {ok, RecType, State1}; error -> - error + {error, State1} end. is_literal_record(Tree) -> @@ -3368,10 +3394,10 @@ family(L) -> -ifdef(DEBUG). format_type(#fun_var{deps = Deps, origin = Origin}) -> L = [format_type(t_var(X)) || X <- Deps], - io_lib:format("Fun@L~p(~s)", [Origin, join_chars(L, ",")]); + io_lib:format("Fun@L~p(~ts)", [Origin, join_chars(L, ",")]); format_type(Type) -> case cerl:is_literal(Type) of - true -> io_lib:format("~w", [cerl:concrete(Type)]); + true -> io_lib:format("~tw", [cerl:concrete(Type)]); false -> erl_types:t_to_string(Type) end. @@ -3413,7 +3439,7 @@ pp_constrs_scc(SCC, State) -> [pp_constrs(Fun, state__get_cs(Fun, State), State) || Fun <- SCC]. pp_constrs(Fun, Cs, State) -> - io:format("Constraints for fun: ~w", [debug_lookup_name(Fun)]), + io:format("Constraints for fun: ~tw", [debug_lookup_name(Fun)]), MaxDepth = pp_constraints(Cs, State), io:format("Depth: ~w\n", [MaxDepth]). @@ -3451,7 +3477,7 @@ pp_constraints([#constraint_list{type = Type, list = List, id = Id}|Tail], pp_op(#constraint{lhs = Lhs, op = Op, rhs = Rhs}, Level) -> pp_indent(Level), - io:format("~s ~w ~s", [format_type(Lhs), Op, format_type(Rhs)]). + io:format("~ts ~w ~ts", [format_type(Lhs), Op, format_type(Rhs)]). pp_indent(Level) -> io:format("\n~*s", [Level*2, ""]). @@ -3463,19 +3489,25 @@ pp_constrs_scc(_SCC, _State) -> -ifdef(TO_DOT). constraints_to_dot_scc(SCC, State) -> - io:format("SCC: ~p\n", [SCC]), - Name = lists:flatten([io_lib:format("'~w'", [debug_lookup_name(Fun)]) - || Fun <- SCC]), + %% TODO: handle Unicode names. + io:format("SCC: ~tp\n", [SCC]), + Name = lists:flatten([format_lookup_name(debug_lookup_name(Fun)) + || Fun <- SCC]), Cs = [state__get_cs(Fun, State) || Fun <- SCC], constraints_to_dot(Cs, Name, State). +format_lookup_name({FunName, Arity}) -> + TupleS = io_lib:format("{~ts,~w}", [atom_to_list(FunName), Arity]), + io_lib:format("~tw", [list_to_atom(lists:flatten(TupleS))]). + constraints_to_dot(Cs0, Name, State) -> NofCs = length(Cs0), Cs = lists:zip(lists:seq(1, NofCs), Cs0), {Graph, Opts, _N} = constraints_to_nodes(Cs, NofCs + 1, 1, [], [], State), hipe_dot:translate_list(Graph, "/tmp/cs.dot", "foo", Opts), + %% "-T ps" works for Latin-1. hipe_dot cannot handle UTF-8 either. Res = os:cmd("dot -o /tmp/"++ Name ++ ".ps -T ps /tmp/cs.dot"), - io:format("Res: ~p~n", [Res]), + io:format("Res: ~ts~n", [Res]), ok. constraints_to_nodes([{Name, #constraint_list{type = Type, list = List, id=Id}} @@ -3494,7 +3526,7 @@ constraints_to_nodes([{Name, #constraint_list{type = Type, list = List, id=Id}} constraints_to_nodes(Left, N2, Level, NewGraph, NewOpts, State); constraints_to_nodes([{Name, #constraint{lhs = Lhs, op = Op, rhs = Rhs}}|Left], N, Level, Graph, Opts, State) -> - Label = lists:flatten(io_lib:format("~s ~w ~s", + Label = lists:flatten(io_lib:format("~ts ~w ~ts", [format_type(Lhs), Op, format_type(Rhs)])), ThisNode = [{Name, Opt} || Opt <- [{label, Label}, {level, Level}]], |