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authorHans Bolinder <[email protected]>2015-06-29 16:45:10 +0200
committerHans Bolinder <[email protected]>2015-08-25 09:24:54 +0200
commitbe602ec806a37fb3951dc3327ff5f2a96fe9cc86 (patch)
tree95b0b1437aade00ca4b5391daa0c86df764085b4 /lib/dialyzer/src/dialyzer_contracts.erl
parente409bd71d9aec56dec9f111966d1ca99d2537c41 (diff)
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dialyzer: Generalize an argument of erl_types:t_from_form()
Add more information about the caller of t_from_form(). Instead of just the module, also provide name of the type, spec, or record where the type form resides.
Diffstat (limited to 'lib/dialyzer/src/dialyzer_contracts.erl')
-rw-r--r--lib/dialyzer/src/dialyzer_contracts.erl102
1 files changed, 52 insertions, 50 deletions
diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl
index 1079c2e09b..7251de8b10 100644
--- a/lib/dialyzer/src/dialyzer_contracts.erl
+++ b/lib/dialyzer/src/dialyzer_contracts.erl
@@ -395,22 +395,21 @@ insert_constraints([], Dict) -> Dict.
store_tmp_contract(MFA, FileLine, {TypeSpec, Xtra}, SpecDict, RecordsDict) ->
%% io:format("contract from form: ~p\n", [TypeSpec]),
- {Module, _, _} = MFA,
- TmpContract = contract_from_form(TypeSpec, Module, RecordsDict, FileLine),
+ TmpContract = contract_from_form(TypeSpec, MFA, RecordsDict, FileLine),
%% io:format("contract: ~p\n", [TmpContract]),
dict:store(MFA, {FileLine, TmpContract, Xtra}, SpecDict).
-contract_from_form(Forms, Module, RecDict, FileLine) ->
- {CFuns, Forms1} = contract_from_form(Forms, Module, RecDict, FileLine, [], []),
+contract_from_form(Forms, MFA, RecDict, FileLine) ->
+ {CFuns, Forms1} = contract_from_form(Forms, MFA, RecDict, FileLine, [], []),
#tmp_contract{contract_funs = CFuns, forms = Forms1}.
-contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], Module, RecDict,
+contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], MFA, RecDict,
FileLine, TypeAcc, FormAcc) ->
TypeFun =
fun(ExpTypes, AllRecords) ->
NewType =
try
- from_form_with_check(Form, ExpTypes, Module, AllRecords)
+ from_form_with_check(Form, ExpTypes, MFA, AllRecords)
catch
throw:{error, Msg} ->
{File, Line} = FileLine,
@@ -423,55 +422,55 @@ contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], Module, RecDict,
end,
NewTypeAcc = [TypeFun | TypeAcc],
NewFormAcc = [{Form, []} | FormAcc],
- contract_from_form(Left, Module, RecDict, FileLine, NewTypeAcc, NewFormAcc);
+ contract_from_form(Left, MFA, RecDict, FileLine, NewTypeAcc, NewFormAcc);
contract_from_form([{type, _L1, bounded_fun,
[{type, _L2, 'fun', [_, _]} = Form, Constr]}| Left],
- Module, RecDict, FileLine, TypeAcc, FormAcc) ->
+ MFA, RecDict, FileLine, TypeAcc, FormAcc) ->
TypeFun =
fun(ExpTypes, AllRecords) ->
{Constr1, VarDict} =
- process_constraints(Constr, Module, RecDict, ExpTypes, AllRecords),
- NewType = from_form_with_check(Form, ExpTypes, Module, AllRecords,
+ process_constraints(Constr, MFA, RecDict, ExpTypes, AllRecords),
+ NewType = from_form_with_check(Form, ExpTypes, MFA, AllRecords,
VarDict),
NewTypeNoVars = erl_types:subst_all_vars_to_any(NewType),
{NewTypeNoVars, Constr1}
end,
NewTypeAcc = [TypeFun | TypeAcc],
NewFormAcc = [{Form, Constr} | FormAcc],
- contract_from_form(Left, Module, RecDict, FileLine, NewTypeAcc, NewFormAcc);
-contract_from_form([], _Module, _RecDict, _FileLine, TypeAcc, FormAcc) ->
+ contract_from_form(Left, MFA, RecDict, FileLine, NewTypeAcc, NewFormAcc);
+contract_from_form([], _MFA, _RecDict, _FileLine, TypeAcc, FormAcc) ->
{lists:reverse(TypeAcc), lists:reverse(FormAcc)}.
-process_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
- Init0 = initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords),
+process_constraints(Constrs, MFA, RecDict, ExpTypes, AllRecords) ->
+ Init0 = initialize_constraints(Constrs, MFA, RecDict, ExpTypes, AllRecords),
Init = remove_cycles(Init0),
- constraints_fixpoint(Init, Module, RecDict, ExpTypes, AllRecords).
+ constraints_fixpoint(Init, MFA, RecDict, ExpTypes, AllRecords).
-initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
- initialize_constraints(Constrs, Module, RecDict, ExpTypes, AllRecords, []).
+initialize_constraints(Constrs, MFA, RecDict, ExpTypes, AllRecords) ->
+ initialize_constraints(Constrs, MFA, RecDict, ExpTypes, AllRecords, []).
-initialize_constraints([], _Module, _RecDict, _ExpTypes, _AllRecords, Acc) ->
+initialize_constraints([], _MFA, _RecDict, _ExpTypes, _AllRecords, Acc) ->
Acc;
-initialize_constraints([Constr|Rest], Module, RecDict, ExpTypes, AllRecords, Acc) ->
+initialize_constraints([Constr|Rest], MFA, RecDict, ExpTypes, AllRecords, Acc) ->
case Constr of
{type, _, constraint, [{atom, _, is_subtype}, [Type1, Type2]]} ->
- T1 = final_form(Type1, ExpTypes, Module, AllRecords, dict:new()),
+ T1 = final_form(Type1, ExpTypes, MFA, AllRecords, dict:new()),
Entry = {T1, Type2},
- initialize_constraints(Rest, Module, RecDict, ExpTypes, AllRecords, [Entry|Acc]);
+ initialize_constraints(Rest, MFA, RecDict, ExpTypes, AllRecords, [Entry|Acc]);
{type, _, constraint, [{atom,_,Name}, List]} ->
N = length(List),
throw({error,
io_lib:format("Unsupported type guard ~w/~w\n", [Name, N])})
end.
-constraints_fixpoint(Constrs, Module, RecDict, ExpTypes, AllRecords) ->
+constraints_fixpoint(Constrs, MFA, RecDict, ExpTypes, AllRecords) ->
VarDict =
- constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, dict:new()),
- constraints_fixpoint(VarDict, Module, Constrs, RecDict, ExpTypes, AllRecords).
+ constraints_to_dict(Constrs, MFA, RecDict, ExpTypes, AllRecords, dict:new()),
+ constraints_fixpoint(VarDict, MFA, Constrs, RecDict, ExpTypes, AllRecords).
-constraints_fixpoint(OldVarDict, Module, Constrs, RecDict, ExpTypes, AllRecords) ->
+constraints_fixpoint(OldVarDict, MFA, Constrs, RecDict, ExpTypes, AllRecords) ->
NewVarDict =
- constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, OldVarDict),
+ constraints_to_dict(Constrs, MFA, RecDict, ExpTypes, AllRecords, OldVarDict),
case NewVarDict of
OldVarDict ->
DictFold =
@@ -481,33 +480,33 @@ constraints_fixpoint(OldVarDict, Module, Constrs, RecDict, ExpTypes, AllRecords)
FinalConstrs = dict:fold(DictFold, [], NewVarDict),
{FinalConstrs, NewVarDict};
_Other ->
- constraints_fixpoint(NewVarDict, Module, Constrs, RecDict, ExpTypes, AllRecords)
+ constraints_fixpoint(NewVarDict, MFA, Constrs, RecDict, ExpTypes, AllRecords)
end.
-final_form(Form, ExpTypes, Module, AllRecords, VarDict) ->
- from_form_with_check(Form, ExpTypes, Module, AllRecords, VarDict).
+final_form(Form, ExpTypes, MFA, AllRecords, VarDict) ->
+ from_form_with_check(Form, ExpTypes, MFA, AllRecords, VarDict).
-from_form_with_check(Form, ExpTypes, Module, AllRecords) ->
- erl_types:t_check_record_fields(Form, ExpTypes, Module, AllRecords),
- erl_types:t_from_form(Form, ExpTypes, Module, AllRecords).
+from_form_with_check(Form, ExpTypes, MFA, AllRecords) ->
+ from_form_with_check(Form, ExpTypes, MFA, AllRecords, dict:new()).
-from_form_with_check(Form, ExpTypes, Module, AllRecords, VarDict) ->
- erl_types:t_check_record_fields(Form, ExpTypes, Module, AllRecords,
+from_form_with_check(Form, ExpTypes, MFA, AllRecords, VarDict) ->
+ Site = {spec, MFA},
+ erl_types:t_check_record_fields(Form, ExpTypes, Site, AllRecords,
VarDict),
- erl_types:t_from_form(Form, ExpTypes, Module, AllRecords, VarDict).
+ erl_types:t_from_form(Form, ExpTypes, Site, AllRecords, VarDict).
-constraints_to_dict(Constrs, Module, RecDict, ExpTypes, AllRecords, VarDict) ->
+constraints_to_dict(Constrs, MFA, RecDict, ExpTypes, AllRecords, VarDict) ->
Subtypes =
- constraints_to_subs(Constrs, Module, RecDict, ExpTypes, AllRecords, VarDict, []),
+ constraints_to_subs(Constrs, MFA, RecDict, ExpTypes, AllRecords, VarDict, []),
insert_constraints(Subtypes, dict:new()).
-constraints_to_subs([], _Module, _RecDict, _ExpTypes, _AllRecords, _VarDict, Acc) ->
+constraints_to_subs([], _MFA, _RecDict, _ExpTypes, _AllRecords, _VarDict, Acc) ->
Acc;
-constraints_to_subs([C|Rest], Module, RecDict, ExpTypes, AllRecords, VarDict, Acc) ->
+constraints_to_subs([C|Rest], MFA, RecDict, ExpTypes, AllRecords, VarDict, Acc) ->
{T1, Form2} = C,
- T2 = final_form(Form2, ExpTypes, Module, AllRecords, VarDict),
+ T2 = final_form(Form2, ExpTypes, MFA, AllRecords, VarDict),
NewAcc = [{subtype, T1, T2}|Acc],
- constraints_to_subs(Rest, Module, RecDict, ExpTypes, AllRecords, VarDict, NewAcc).
+ constraints_to_subs(Rest, MFA, RecDict, ExpTypes, AllRecords, VarDict, NewAcc).
%% Replaces variables with '_' when necessary to break up cycles among
%% the constraints.
@@ -630,7 +629,7 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left],
{error, {extra_range, ExtraRanges, STRange}} ->
Warn =
case t_from_forms_without_remote(Contract#contract.forms,
- RecDict) of
+ MFA, RecDict) of
{ok, NoRemoteType} ->
CRet = erl_types:t_fun_range(NoRemoteType),
erl_types:t_is_subtype(ExtraRanges, CRet);
@@ -705,7 +704,7 @@ picky_contract_check(CSig0, Sig0, MFA, WarningInfo, Contract, RecDict, Acc) ->
end
end.
-extra_contract_warning({M, F, A}, WarningInfo, Contract, CSig, Sig, RecDict) ->
+extra_contract_warning(MFA, WarningInfo, Contract, CSig, Sig, RecDict) ->
%% We do not want to depend upon erl_types:t_to_string() possibly
%% hiding the contents of opaque types.
SigUnopaque = erl_types:t_unopaque(Sig),
@@ -717,11 +716,12 @@ extra_contract_warning({M, F, A}, WarningInfo, Contract, CSig, Sig, RecDict) ->
%% The only difference is in record fields containing 'undefined' or not.
IsUndefRecordFieldsRelated = SigString0 =:= ContractString0,
{IsRemoteTypesRelated, SubtypeRelation} =
- is_remote_types_related(Contract, CSig, Sig, RecDict),
+ is_remote_types_related(Contract, CSig, Sig, MFA, RecDict),
case IsUndefRecordFieldsRelated orelse IsRemoteTypesRelated of
true ->
no_warning;
false ->
+ {M, F, A} = MFA,
SigString = lists:flatten(dialyzer_utils:format_sig(Sig, RecDict)),
ContractString = contract_to_string(Contract),
{Tag, Msg} =
@@ -739,14 +739,15 @@ extra_contract_warning({M, F, A}, WarningInfo, Contract, CSig, Sig, RecDict) ->
{warning, {Tag, WarningInfo, Msg}}
end.
-is_remote_types_related(Contract, CSig, Sig, RecDict) ->
+is_remote_types_related(Contract, CSig, Sig, MFA, RecDict) ->
case erl_types:t_is_subtype(CSig, Sig) of
true ->
{false, contract_is_subtype};
false ->
case erl_types:t_is_subtype(Sig, CSig) of
true ->
- case t_from_forms_without_remote(Contract#contract.forms, RecDict) of
+ case t_from_forms_without_remote(Contract#contract.forms, MFA,
+ RecDict) of
{ok, NoRemoteTypeSig} ->
case blame_remote(CSig, NoRemoteTypeSig, Sig) of
true ->
@@ -762,13 +763,14 @@ is_remote_types_related(Contract, CSig, Sig, RecDict) ->
end
end.
-t_from_forms_without_remote([{FType, []}], RecDict) ->
- Type1 = erl_types:t_from_form_without_remote(FType, RecDict),
+t_from_forms_without_remote([{FType, []}], MFA, RecDict) ->
+ Site = {spec, MFA},
+ Type1 = erl_types:t_from_form_without_remote(FType, Site, RecDict),
{ok, erl_types:subst_all_vars_to_any(Type1)};
-t_from_forms_without_remote([{_FType, _Constrs}], _RecDict) ->
+t_from_forms_without_remote([{_FType, _Constrs}], _MFA, _RecDict) ->
%% 'When' constraints
unsupported;
-t_from_forms_without_remote(_Forms, _RecDict) ->
+t_from_forms_without_remote(_Forms, _MFA, _RecDict) ->
%% Lots of forms
unsupported.