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-rw-r--r--lib/dialyzer/src/dialyzer_typesig.erl195
1 files changed, 106 insertions, 89 deletions
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl
index 65c2ff76bb..06863d89a7 100644
--- a/lib/dialyzer/src/dialyzer_typesig.erl
+++ b/lib/dialyzer/src/dialyzer_typesig.erl
@@ -62,7 +62,8 @@
-type dep() :: integer(). %% type variable names used as constraint ids
-type type_var() :: erl_types:erl_type(). %% actually: {'c','var',_,_}
--record(fun_var, {'fun' :: fun((_) -> erl_types:erl_type()), deps :: [dep()]}).
+-record(fun_var, {'fun' :: fun((_) -> erl_types:erl_type()), deps :: [dep()],
+ origin :: integer()}).
-type constr_op() :: 'eq' | 'sub'.
-type fvar_or_type() :: #fun_var{} | erl_types:erl_type().
@@ -121,8 +122,10 @@
-ifdef(DEBUG).
-define(debug(__String, __Args), io:format(__String, __Args)).
+-define(mk_fun_var(Fun, Vars), mk_fun_var(?LINE, Fun, Vars)).
-else.
-define(debug(__String, __Args), ok).
+-define(mk_fun_var(Fun, Vars), mk_fun_var(Fun, Vars)).
-endif.
%% ============================================================================
@@ -218,10 +221,10 @@ traverse(Tree, DefinedVars, State) ->
binary ->
{State1, SegTypes} = traverse_list(cerl:binary_segments(Tree),
DefinedVars, State),
- Type = mk_fun_var(fun(Map) ->
- TmpSegTypes = lookup_type_list(SegTypes, Map),
- t_bitstr_concat(TmpSegTypes)
- end, SegTypes),
+ Type = ?mk_fun_var(fun(Map) ->
+ TmpSegTypes = lookup_type_list(SegTypes, Map),
+ t_bitstr_concat(TmpSegTypes)
+ end, SegTypes),
{state__store_conj(mk_var(Tree), sub, Type, State1), mk_var(Tree)};
bitstr ->
Size = cerl:bitstr_size(Tree),
@@ -236,7 +239,7 @@ traverse(Tree, DefinedVars, State) ->
N when is_integer(N) -> {State1, t_bitstr(0, N)};
any -> % Size is not a literal
{state__store_conj(SizeType, sub, t_non_neg_integer(), State1),
- mk_fun_var(bitstr_constr(SizeType, UnitVal), [SizeType])}
+ ?mk_fun_var(bitstr_constr(SizeType, UnitVal), [SizeType])}
end,
ValTypeConstr =
case cerl:concrete(cerl:bitstr_type(Tree)) of
@@ -250,8 +253,8 @@ traverse(Tree, DefinedVars, State) ->
case state__is_in_match(State1) of
true ->
Flags = cerl:concrete(cerl:bitstr_flags(Tree)),
- mk_fun_var(bitstr_val_constr(SizeType, UnitVal, Flags),
- [SizeType]);
+ ?mk_fun_var(bitstr_val_constr(SizeType, UnitVal, Flags),
+ [SizeType]);
false -> t_integer()
end;
utf8 -> t_integer();
@@ -281,24 +284,24 @@ traverse(Tree, DefinedVars, State) ->
{State, t_cons(HdVar, TlVar)};
false ->
ConsVar = mk_var(Tree),
- ConsType = mk_fun_var(fun(Map) ->
- t_cons(lookup_type(HdVar, Map),
- lookup_type(TlVar, Map))
- end, [HdVar, TlVar]),
- HdType = mk_fun_var(fun(Map) ->
- Cons = lookup_type(ConsVar, Map),
- case t_is_cons(Cons) of
- false -> t_any();
- true -> t_cons_hd(Cons)
- end
- end, [ConsVar]),
- TlType = mk_fun_var(fun(Map) ->
- Cons = lookup_type(ConsVar, Map),
- case t_is_cons(Cons) of
- false -> t_any();
- true -> t_cons_tl(Cons)
- end
- end, [ConsVar]),
+ ConsType = ?mk_fun_var(fun(Map) ->
+ t_cons(lookup_type(HdVar, Map),
+ lookup_type(TlVar, Map))
+ end, [HdVar, TlVar]),
+ HdType = ?mk_fun_var(fun(Map) ->
+ Cons = lookup_type(ConsVar, Map),
+ case t_is_cons(Cons) of
+ false -> t_any();
+ true -> t_cons_hd(Cons)
+ end
+ end, [ConsVar]),
+ TlType = ?mk_fun_var(fun(Map) ->
+ Cons = lookup_type(ConsVar, Map),
+ case t_is_cons(Cons) of
+ false -> t_any();
+ true -> t_cons_tl(Cons)
+ end
+ end, [ConsVar]),
State2 = state__store_conj_lists([HdVar, TlVar, ConsVar], sub,
[HdType, TlType, ConsType],
State1),
@@ -656,25 +659,25 @@ get_plt_constr(MFA, Dst, ArgVars, State) ->
{RetType, ArgCs} =
case PltRes of
none ->
- {mk_fun_var(fun(Map) ->
- ArgTypes = lookup_type_list(ArgVars, Map),
- dialyzer_contracts:get_contract_return(C, ArgTypes)
- end, ArgVars), GenArgs};
+ {?mk_fun_var(fun(Map) ->
+ ArgTypes = lookup_type_list(ArgVars, Map),
+ dialyzer_contracts:get_contract_return(C, ArgTypes)
+ end, ArgVars), GenArgs};
{value, {PltRetType, PltArgTypes}} ->
%% Need to combine the contract with the success typing.
- {mk_fun_var(
- fun(Map) ->
- ArgTypes0 = lookup_type_list(ArgVars, Map),
- ArgTypes = case FunModule =:= Module of
- false ->
- List = lists:zip(PltArgTypes, ArgTypes0),
- [erl_types:t_unopaque_on_mismatch(T1, T2, Opaques)
- || {T1, T2} <- List];
- true -> ArgTypes0
- end,
- CRet = dialyzer_contracts:get_contract_return(C, ArgTypes),
- t_inf(CRet, PltRetType, opaque)
- end, ArgVars),
+ {?mk_fun_var(
+ fun(Map) ->
+ ArgTypes0 = lookup_type_list(ArgVars, Map),
+ ArgTypes = case FunModule =:= Module of
+ false ->
+ List = lists:zip(PltArgTypes, ArgTypes0),
+ [erl_types:t_unopaque_on_mismatch(T1, T2, Opaques)
+ || {T1, T2} <- List];
+ true -> ArgTypes0
+ end,
+ CRet = dialyzer_contracts:get_contract_return(C, ArgTypes),
+ t_inf(CRet, PltRetType, opaque)
+ end, ArgVars),
[t_inf(X, Y, opaque) || {X, Y} <- lists:zip(GenArgs, PltArgTypes)]}
end,
state__store_conj_lists([Dst|ArgVars], sub, [RetType|ArgCs], State)
@@ -766,10 +769,10 @@ handle_clauses_1([Clause|Tail], TopVar, Arg, DefinedVars,
case SubtrTypes =:= overflow of
true -> S;
false ->
- SubtrPatVar = mk_fun_var(fun(Map) ->
- TmpType = lookup_type(Arg, Map),
- t_subtract_list(TmpType, SubtrTypes)
- end, [Arg]),
+ SubtrPatVar = ?mk_fun_var(fun(Map) ->
+ TmpType = lookup_type(Arg, Map),
+ t_subtract_list(TmpType, SubtrTypes)
+ end, [Arg]),
state__store_conj(Arg, sub, SubtrPatVar, S)
end
end,
@@ -1043,10 +1046,10 @@ handle_guard(Guard, DefinedVars, State) ->
get_bif_constr({erlang, Op, 2}, Dst, Args = [Arg1, Arg2], _State)
when Op =:= '+'; Op =:= '-'; Op =:= '*' ->
- ReturnType = mk_fun_var(fun(Map) ->
- TmpArgTypes = lookup_type_list(Args, Map),
- erl_bif_types:type(erlang, Op, 2, TmpArgTypes)
- end, Args),
+ ReturnType = ?mk_fun_var(fun(Map) ->
+ TmpArgTypes = lookup_type_list(Args, Map),
+ erl_bif_types:type(erlang, Op, 2, TmpArgTypes)
+ end, Args),
ArgFun =
fun(A, Pos) ->
F =
@@ -1074,7 +1077,7 @@ get_bif_constr({erlang, Op, 2}, Dst, Args = [Arg1, Arg2], _State)
end
end
end,
- mk_fun_var(F, [Dst, A])
+ ?mk_fun_var(F, [Dst, A])
end,
Arg1FunVar = ArgFun(Arg2, 2),
Arg2FunVar = ArgFun(Arg1, 1),
@@ -1131,12 +1134,12 @@ get_bif_constr({erlang, Op, 2}, Dst, [Arg1, Arg2] = Args, _State)
'>=' -> {ArgFun(Arg1, Arg2, '>='), ArgFun(Arg2, Arg1, '=<')}
end,
DstArgs = [Dst, Arg1, Arg2],
- Arg1Var = mk_fun_var(Arg1Fun, DstArgs),
- Arg2Var = mk_fun_var(Arg2Fun, DstArgs),
- DstVar = mk_fun_var(fun(Map) ->
- TmpArgTypes = lookup_type_list(Args, Map),
- erl_bif_types:type(erlang, Op, 2, TmpArgTypes)
- end, Args),
+ Arg1Var = ?mk_fun_var(Arg1Fun, DstArgs),
+ Arg2Var = ?mk_fun_var(Arg2Fun, DstArgs),
+ DstVar = ?mk_fun_var(fun(Map) ->
+ TmpArgTypes = lookup_type_list(Args, Map),
+ erl_bif_types:type(erlang, Op, 2, TmpArgTypes)
+ end, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstVar),
mk_constraint(Arg1, sub, Arg1Var),
mk_constraint(Arg2, sub, Arg2Var)]);
@@ -1172,13 +1175,13 @@ get_bif_constr({erlang, '++', 2}, Dst, [Hd, Tl] = Args, _State) ->
end
end,
DstL = [Dst],
- HdVar = mk_fun_var(HdFun, DstL),
- TlVar = mk_fun_var(TlFun, DstL),
+ HdVar = ?mk_fun_var(HdFun, DstL),
+ TlVar = ?mk_fun_var(TlFun, DstL),
ArgTypes = erl_bif_types:arg_types(erlang, '++', 2),
- ReturnType = mk_fun_var(fun(Map) ->
- TmpArgTypes = lookup_type_list(Args, Map),
- erl_bif_types:type(erlang, '++', 2, TmpArgTypes)
- end, Args),
+ ReturnType = ?mk_fun_var(fun(Map) ->
+ TmpArgTypes = lookup_type_list(Args, Map),
+ erl_bif_types:type(erlang, '++', 2, TmpArgTypes)
+ end, Args),
Cs = mk_constraints(Args, sub, ArgTypes),
mk_conj_constraint_list([mk_constraint(Dst, sub, ReturnType),
mk_constraint(Hd, sub, HdVar),
@@ -1209,7 +1212,7 @@ get_bif_constr({erlang, is_function, 2}, Dst, [Fun, Arity], _State) ->
false -> t_any()
end
end,
- ArgV = mk_fun_var(ArgFun, [Dst, Arity]),
+ ArgV = ?mk_fun_var(ArgFun, [Dst, Arity]),
mk_conj_constraint_list([mk_constraint(Dst, sub, t_boolean()),
mk_constraint(Arity, sub, t_integer()),
mk_constraint(Fun, sub, ArgV)]);
@@ -1232,12 +1235,12 @@ get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) ->
false -> t_any()
end
end,
- ArgV = mk_fun_var(ArgFun, [Dst]),
+ ArgV = ?mk_fun_var(ArgFun, [Dst]),
DstFun = fun(Map) ->
TmpArgTypes = lookup_type_list(Args, Map),
erl_bif_types:type(erlang, is_record, 2, TmpArgTypes)
end,
- DstV = mk_fun_var(DstFun, Args),
+ DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Tag, sub, t_atom()),
mk_constraint(Var, sub, ArgV)]);
@@ -1280,7 +1283,7 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) ->
false -> t_any()
end
end,
- ArgV = mk_fun_var(ArgFun, [Tag, Arity, Dst]),
+ ArgV = ?mk_fun_var(ArgFun, [Tag, Arity, Dst]),
DstFun = fun(Map) ->
[TmpVar, TmpTag, TmpArity] = TmpArgTypes = lookup_type_list(Args, Map),
TmpArgTypes2 =
@@ -1314,7 +1317,7 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) ->
end,
erl_bif_types:type(erlang, is_record, 3, TmpArgTypes2)
end,
- DstV = mk_fun_var(DstFun, Args),
+ DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Arity, sub, t_integer()),
mk_constraint(Tag, sub, t_atom()),
@@ -1359,9 +1362,9 @@ get_bif_constr({erlang, 'and', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end
end
end,
- ArgV1 = mk_fun_var(ArgFun(Arg2), [Arg2, Dst]),
- ArgV2 = mk_fun_var(ArgFun(Arg1), [Arg1, Dst]),
- DstV = mk_fun_var(DstFun, Args),
+ ArgV1 = ?mk_fun_var(ArgFun(Arg2), [Arg2, Dst]),
+ ArgV2 = ?mk_fun_var(ArgFun(Arg1), [Arg1, Dst]),
+ DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Arg1, sub, ArgV1),
mk_constraint(Arg2, sub, ArgV2)]);
@@ -1403,9 +1406,9 @@ get_bif_constr({erlang, 'or', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end
end
end,
- ArgV1 = mk_fun_var(ArgFun(Arg2), [Arg2, Dst]),
- ArgV2 = mk_fun_var(ArgFun(Arg1), [Arg1, Dst]),
- DstV = mk_fun_var(DstFun, Args),
+ ArgV1 = ?mk_fun_var(ArgFun(Arg2), [Arg2, Dst]),
+ ArgV2 = ?mk_fun_var(ArgFun(Arg1), [Arg1, Dst]),
+ DstV = ?mk_fun_var(DstFun, Args),
F = fun(A) ->
try [mk_constraint(A, sub, True)]
catch throw:error -> []
@@ -1433,8 +1436,8 @@ get_bif_constr({erlang, 'not', 1}, Dst, [Arg] = Args, _State) ->
end
end
end,
- ArgV = mk_fun_var(Fun(Dst), [Dst]),
- DstV = mk_fun_var(Fun(Arg), Args),
+ ArgV = ?mk_fun_var(Fun(Dst), [Dst]),
+ DstV = ?mk_fun_var(Fun(Arg), Args),
mk_conj_constraint_list([mk_constraint(Arg, sub, ArgV),
mk_constraint(Dst, sub, DstV)]);
get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
@@ -1467,9 +1470,9 @@ get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end
end,
DstArgs = [Dst, Arg1, Arg2],
- ArgV1 = mk_fun_var(ArgFun(Arg1, Arg2), DstArgs),
- ArgV2 = mk_fun_var(ArgFun(Arg2, Arg1), DstArgs),
- DstV = mk_fun_var(DstFun, Args),
+ ArgV1 = ?mk_fun_var(ArgFun(Arg1, Arg2), DstArgs),
+ ArgV2 = ?mk_fun_var(ArgFun(Arg2, Arg1), DstArgs),
+ DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Arg1, sub, ArgV1),
mk_constraint(Arg2, sub, ArgV2)]);
@@ -1510,10 +1513,10 @@ get_bif_constr({erlang, '==', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end
end
end,
- DstV = mk_fun_var(DstFun, Args),
+ DstV = ?mk_fun_var(DstFun, Args),
ArgL = [Arg1, Arg2, Dst],
- ArgV1 = mk_fun_var(ArgFun(Arg2, Arg1), ArgL),
- ArgV2 = mk_fun_var(ArgFun(Arg1, Arg2), ArgL),
+ ArgV1 = ?mk_fun_var(ArgFun(Arg2, Arg1), ArgL),
+ ArgV2 = ?mk_fun_var(ArgFun(Arg1, Arg2), ArgL),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Arg1, sub, ArgV1),
mk_constraint(Arg2, sub, ArgV2)]);
@@ -1531,7 +1534,7 @@ get_bif_constr({erlang, element, 2} = _BIF, Dst, Args,
end,
erl_bif_types:type(erlang, element, 2, ATs2)
end,
- ReturnType = mk_fun_var(Fun, Args),
+ ReturnType = ?mk_fun_var(Fun, Args),
ArgTypes = erl_bif_types:arg_types(erlang, element, 2),
Cs = mk_constraints(Args, sub, ArgTypes),
NewCs =
@@ -1553,7 +1556,7 @@ get_bif_constr({M, F, A} = _BIF, Dst, Args, State) ->
false -> T
end
end,
- ReturnType = mk_fun_var(fun(Map) ->
+ ReturnType = ?mk_fun_var(fun(Map) ->
TmpArgTypes0 = lookup_type_list(Args, Map),
TmpArgTypes = [UnopaqueFun(T) || T<- TmpArgTypes0],
erl_bif_types:type(M, F, A, TmpArgTypes)
@@ -1608,7 +1611,7 @@ get_bif_test_constr(Dst, Arg, Type, State) ->
false -> t_any()
end
end,
- ArgV = mk_fun_var(ArgFun, [Dst]),
+ ArgV = ?mk_fun_var(ArgFun, [Dst]),
DstFun = fun(Map) ->
ArgType = lookup_type(Arg, Map),
case t_is_none(t_inf(ArgType, Type)) of
@@ -1633,7 +1636,7 @@ get_bif_test_constr(Dst, Arg, Type, State) ->
end
end
end,
- DstV = mk_fun_var(DstFun, [Arg]),
+ DstV = ?mk_fun_var(DstFun, [Arg]),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
mk_constraint(Arg, sub, ArgV)]).
@@ -2323,12 +2326,25 @@ mk_constraint(Lhs, Op, Rhs) ->
constraint_opnd_is_any(#fun_var{}) -> false;
constraint_opnd_is_any(Type) -> t_is_any(Type).
+-ifdef(DEBUG).
+
+-spec mk_fun_var(fun((_) -> erl_types:erl_type()), [erl_types:erl_type()],
+ integer()) -> #fun_var{}.
+
+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}.
+
+-else.
+
-spec mk_fun_var(fun((_) -> erl_types:erl_type()), [erl_types:erl_type()]) -> #fun_var{}.
mk_fun_var(Fun, Types) ->
Deps = [t_var_name(Var) || Var <- t_collect_vars(t_product(Types))],
#fun_var{'fun' = Fun, deps = ordsets:from_list(Deps)}.
+-endif.
+
-spec get_deps(constr()) -> [dep()].
get_deps(#constraint{deps = D}) -> D;
@@ -2679,8 +2695,9 @@ find_constraint(Tuple, [_|Cs]) ->
-endif.
-ifdef(DEBUG).
-format_type(#fun_var{deps = Deps}) ->
- io_lib:format("Fun(~s)", [lists:flatten([format_type(t_var(X))||X<-Deps])]);
+format_type(#fun_var{deps = Deps, origin = Origin}) ->
+ io_lib:format("Fun@L~p(~s)",
+ [Origin, lists:flatten([format_type(t_var(X))||X<-Deps])]);
format_type(Type) ->
case cerl:is_literal(Type) of
true -> io_lib:format("~w", [cerl:concrete(Type)]);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 00:32:43 +0000