diff options
Diffstat (limited to 'lib/dialyzer')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_dataflow.erl | 30 | ||||
| -rw-r--r-- | lib/dialyzer/test/opaque_SUITE_data/results/simple | 2 |
2 files changed, 24 insertions, 8 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl index 963c953447..153842058c 100644 --- a/lib/dialyzer/src/dialyzer_dataflow.erl +++ b/lib/dialyzer/src/dialyzer_dataflow.erl @@ -1211,7 +1211,7 @@ handle_tuple(Tree, Map, State) -> TagVal = cerl:atom_val(Tag), case state__lookup_record(TagVal, length(Left), State1) of error -> {State1, Map1, TupleType}; - {ok, RecType} -> + {ok, RecType, FieldNames} -> InfTupleType = t_inf(RecType, TupleType), case t_is_none(InfTupleType) of true -> @@ -1232,10 +1232,13 @@ handle_tuple(Tree, Map, State) -> Tree, Msg), {State2, Map1, t_none()}; {error, opaque, ErrorPat, ErrorType, OpaqueType} -> + OpaqueStr = format_type(OpaqueType, State1), + Name = field_name(Elements, ErrorPat, FieldNames), Msg = {opaque_match, - [format_patterns(ErrorPat), - format_type(ErrorType, State1), - format_type(OpaqueType, State1)]}, + ["record field" ++ Name ++ + " declared to be of type " ++ + format_type(ErrorType, State1), + OpaqueStr, OpaqueStr]}, State2 = state__add_warning(State1, ?WARN_OPAQUE, Tree, Msg), {State2, Map1, t_none()}; @@ -1252,6 +1255,15 @@ handle_tuple(Tree, Map, State) -> end end. +field_name(Elements, ErrorPat, FieldNames) -> + try + [Pat] = ErrorPat, + Take = lists:takewhile(fun(X) -> X =/= Pat end, Elements), + " " ++ format_atom(lists:nth(length(Take), FieldNames)) + catch + _:_ -> "" + end. + %%---------------------------------------- %% Clauses %% @@ -1632,7 +1644,7 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) -> TagAtom = cerl:atom_val(Tag), case state__lookup_record(TagAtom, length(Left), State) of error -> {false, t_tuple(length(Es))}; - {ok, Record} -> + {ok, Record, _FieldNames} -> [_Head|AnyTail] = [t_any() || _ <- Es], UntypedRecord = t_tuple([t_atom(TagAtom)|AnyTail]), {not t_is_equal(Record, UntypedRecord), Record} @@ -2160,7 +2172,7 @@ handle_guard_is_record(Guard, Map, Env, Eval, State) -> TupleType = case state__lookup_record(Tag, ArityMin1, State) of error -> Tuple; - {ok, Prototype} -> Prototype + {ok, Prototype, _FieldNames} -> Prototype end, Type = t_inf(TupleType, RecType, State#state.opaques), case t_is_none(Type) of @@ -3207,7 +3219,8 @@ state__lookup_record(Tag, Arity, #state{records = Records}) -> RecType = t_tuple([t_atom(Tag)| [FieldType || {_FieldName, _Abstr, FieldType} <- Fields]]), - {ok, RecType}; + FieldNames = [FieldName || {FieldName, _Abstr, _FieldType} <- Fields], + {ok, RecType, FieldNames}; error -> error end. @@ -3660,6 +3673,9 @@ map_pats(Pats) -> fold_literals(TreeList) -> [cerl:fold_literal(Tree) || Tree <- TreeList]. +format_atom(A) -> + format_cerl(cerl:c_atom(A)). + type(Tree) -> Folded = cerl:fold_literal(Tree), case cerl:type(Folded) of diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/simple b/lib/dialyzer/test/opaque_SUITE_data/results/simple index 391c37664e..5a7f006d8c 100644 --- a/lib/dialyzer/test/opaque_SUITE_data/results/simple +++ b/lib/dialyzer/test/opaque_SUITE_data/results/simple @@ -23,7 +23,7 @@ rec_api.erl:29: Matching of pattern {'r1', 10} tagged with a record name violate rec_api.erl:33: The attempt to match a term of type rec_adt:r1() against the pattern {'r1', 'a'} breaks the opaqueness of the term rec_api.erl:35: Invalid type specification for function rec_api:adt_t1/1. The success typing is (#r1{f1::'a'}) -> #r1{f1::'a'} rec_api.erl:40: Invalid type specification for function rec_api:adt_r1/0. The success typing is () -> #r1{f1::'a'} -rec_api.erl:85: The attempt to match a term of type rec_api:f() against the variable _ breaks the opaqueness of rec_adt:f() +rec_api.erl:85: The attempt to match a term of type rec_adt:f() against the record field 'f' declared to be of type rec_api:f() breaks the opaqueness of the term rec_api.erl:99: Record construction #r2{f1::10} violates the declared type of field f1::rec_api:a() simple1_api.erl:113: The test simple1_api:d1() =:= simple1_api:d2() can never evaluate to 'true' simple1_api.erl:118: Guard test simple1_api:d2() =:= A::simple1_api:d1() can never succeed |