aboutsummaryrefslogtreecommitdiffstats
path: root/lib/dialyzer/src
diff options
context:
space:
mode:
Diffstat (limited to 'lib/dialyzer/src')
-rw-r--r--lib/dialyzer/src/dialyzer.erl4
-rw-r--r--lib/dialyzer/src/dialyzer.hrl5
-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl53
-rw-r--r--lib/dialyzer/src/dialyzer_options.erl1
-rw-r--r--lib/dialyzer/src/dialyzer_succ_typings.erl26
5 files changed, 68 insertions, 21 deletions
diff --git a/lib/dialyzer/src/dialyzer.erl b/lib/dialyzer/src/dialyzer.erl
index 3e7680f4bb..683b518831 100644
--- a/lib/dialyzer/src/dialyzer.erl
+++ b/lib/dialyzer/src/dialyzer.erl
@@ -394,6 +394,10 @@ message_to_string({contract_supertype, [M, F, _A, Contract, Sig]}) ->
io_lib:format("Type specification ~w:~w~s"
" is a supertype of the success typing: ~w:~w~s\n",
[M, F, Contract, M, F, Sig]);
+message_to_string({contract_range, [Contract, M, F, ArgStrings, Line, CRet]}) ->
+ io_lib:format("The contract ~w:~w~s cannot be right because the inferred"
+ " return for ~w~s on line ~w is ~s\n",
+ [M, F, Contract, F, ArgStrings, Line, CRet]);
message_to_string({invalid_contract, [M, F, A, Sig]}) ->
io_lib:format("Invalid type specification for function ~w:~w/~w."
" The success typing is ~s\n", [M, F, A, Sig]);
diff --git a/lib/dialyzer/src/dialyzer.hrl b/lib/dialyzer/src/dialyzer.hrl
index aa3f703af2..9d2e554981 100644
--- a/lib/dialyzer/src/dialyzer.hrl
+++ b/lib/dialyzer/src/dialyzer.hrl
@@ -52,10 +52,11 @@
-define(WARN_CONTRACT_NOT_EQUAL, warn_contract_not_equal).
-define(WARN_CONTRACT_SUBTYPE, warn_contract_subtype).
-define(WARN_CONTRACT_SUPERTYPE, warn_contract_supertype).
+-define(WARN_CONTRACT_RANGE, warn_contract_range).
-define(WARN_CALLGRAPH, warn_callgraph).
-define(WARN_UNMATCHED_RETURN, warn_umatched_return).
-define(WARN_RACE_CONDITION, warn_race_condition).
--define(WARN_BEHAVIOUR,warn_behaviour).
+-define(WARN_BEHAVIOUR, warn_behaviour).
%%
%% The following type has double role:
@@ -70,7 +71,7 @@
| ?WARN_CONTRACT_NOT_EQUAL | ?WARN_CONTRACT_SUBTYPE
| ?WARN_CONTRACT_SUPERTYPE | ?WARN_CALLGRAPH
| ?WARN_UNMATCHED_RETURN | ?WARN_RACE_CONDITION
- | ?WARN_BEHAVIOUR.
+ | ?WARN_BEHAVIOUR | ?WARN_CONTRACT_RANGE.
%%
%% This is the representation of each warning as they will be returned
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index b01e7a4b05..215b4d67c1 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -657,7 +657,8 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
true -> opaque;
false -> structured
end,
- RetWithoutLocal = t_inf(t_inf(ContrRet, BifRet, RetMode), SigRange, RetMode),
+ RetWithoutContr = t_inf(SigRange, BifRet, RetMode),
+ RetWithoutLocal = t_inf(ContrRet, RetWithoutContr, RetMode),
?debug("--------------------------------------------------------\n", []),
?debug("Fun: ~p\n", [Fun]),
?debug("Args: ~s\n", [erl_types:t_to_string(t_product(ArgTypes))]),
@@ -666,6 +667,7 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
[erl_types:t_to_string(t_product(NewArgsContract))]),
?debug("NewArgsBif: ~s\n", [erl_types:t_to_string(t_product(NewArgsBif))]),
?debug("NewArgTypes: ~s\n", [erl_types:t_to_string(t_product(NewArgTypes))]),
+ ?debug("RetWithoutContr: ~s\n",[erl_types:t_to_string(RetWithoutContr)]),
?debug("RetWithoutLocal: ~s\n", [erl_types:t_to_string(RetWithoutLocal)]),
?debug("BifRet: ~s\n", [erl_types:t_to_string(BifRange(NewArgTypes))]),
?debug("ContrRet: ~s\n", [erl_types:t_to_string(CRange(TmpArgTypes))]),
@@ -700,22 +702,39 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
State2 =
case FailedConj andalso not (IsFailBif orelse IsFailSig) of
true ->
- FailedSig = any_none(NewArgsSig),
- FailedContract = any_none([CRange(TmpArgsContract)|NewArgsContract]),
- FailedBif = any_none([BifRange(NewArgsBif)|NewArgsBif]),
- InfSig = t_inf(t_fun(SigArgs, SigRange),
- t_fun(BifArgs, BifRange(BifArgs))),
- FailReason = apply_fail_reason(FailedSig, FailedBif, FailedContract),
- Msg = get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes, InfSig,
- Contr, CArgs, State1, FailReason),
- WarnType = case Msg of
- {call, _} -> ?WARN_FAILING_CALL;
- {apply, _} -> ?WARN_FAILING_CALL;
- {call_with_opaque, _} -> ?WARN_OPAQUE;
- {call_without_opaque, _} -> ?WARN_OPAQUE;
- {opaque_type_test, _} -> ?WARN_OPAQUE
- end,
- state__add_warning(State1, WarnType, Tree, Msg);
+ case t_is_none(RetWithoutLocal) andalso
+ not t_is_none(RetWithoutContr) andalso
+ not any_none(NewArgTypes) of
+ true ->
+ {value, C1} = Contr,
+ Contract = dialyzer_contracts:contract_to_string(C1),
+ {M1, F1, A1} = state__lookup_name(Fun, State),
+ ArgStrings = format_args(Args, ArgTypes, State),
+ CRet = erl_types:t_to_string(RetWithoutContr),
+ %% This Msg will be post_processed by dialyzer_succ_typings
+ Msg =
+ {contract_range, [Contract, M1, F1, A1, ArgStrings, CRet]},
+ state__add_warning(State1, ?WARN_CONTRACT_RANGE, Tree, Msg);
+ false ->
+ FailedSig = any_none(NewArgsSig),
+ FailedContract =
+ any_none([CRange(TmpArgsContract)|NewArgsContract]),
+ FailedBif = any_none([BifRange(NewArgsBif)|NewArgsBif]),
+ InfSig = t_inf(t_fun(SigArgs, SigRange),
+ t_fun(BifArgs, BifRange(BifArgs))),
+ FailReason =
+ apply_fail_reason(FailedSig, FailedBif, FailedContract),
+ Msg = get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes, InfSig,
+ Contr, CArgs, State1, FailReason),
+ WarnType = case Msg of
+ {call, _} -> ?WARN_FAILING_CALL;
+ {apply, _} -> ?WARN_FAILING_CALL;
+ {call_with_opaque, _} -> ?WARN_OPAQUE;
+ {call_without_opaque, _} -> ?WARN_OPAQUE;
+ {opaque_type_test, _} -> ?WARN_OPAQUE
+ end,
+ state__add_warning(State1, WarnType, Tree, Msg)
+ end;
false -> State1
end,
State3 =
diff --git a/lib/dialyzer/src/dialyzer_options.erl b/lib/dialyzer/src/dialyzer_options.erl
index 29e164628a..b2a67de8bd 100644
--- a/lib/dialyzer/src/dialyzer_options.erl
+++ b/lib/dialyzer/src/dialyzer_options.erl
@@ -47,6 +47,7 @@ build(Opts) ->
?WARN_FAILING_CALL,
?WARN_BIN_CONSTRUCTION,
?WARN_CALLGRAPH,
+ ?WARN_CONTRACT_RANGE,
?WARN_CONTRACT_TYPES,
?WARN_CONTRACT_SYNTAX],
DefaultWarns1 = ordsets:from_list(DefaultWarns),
diff --git a/lib/dialyzer/src/dialyzer_succ_typings.erl b/lib/dialyzer/src/dialyzer_succ_typings.erl
index 8bfc66fc39..daf68d24f0 100644
--- a/lib/dialyzer/src/dialyzer_succ_typings.erl
+++ b/lib/dialyzer/src/dialyzer_succ_typings.erl
@@ -131,8 +131,9 @@ get_warnings_from_modules([M|Ms], State, DocPlt,
%% Check if there are contracts for functions that do not exist
Warnings1 =
dialyzer_contracts:contracts_without_fun(Contracts, AllFuns, Callgraph),
- {Warnings2, FunTypes, RaceCode, PublicTables, NamedTables} =
+ {RawWarnings2, FunTypes, RaceCode, PublicTables, NamedTables} =
dialyzer_dataflow:get_warnings(ModCode, Plt, Callgraph, Records, NoWarnUnused),
+ {NewAcc, Warnings2} = postprocess_dataflow_warns(RawWarnings2, State, Acc),
Attrs = cerl:module_attrs(ModCode),
Warnings3 = if BehavioursChk ->
dialyzer_behaviours:check_callbacks(M, Attrs,
@@ -145,10 +146,31 @@ get_warnings_from_modules([M|Ms], State, DocPlt,
NamedTables),
State1 = st__renew_state_calls(NewCallgraph, State),
get_warnings_from_modules(Ms, State1, NewDocPlt, BehavioursChk,
- [Warnings1, Warnings2, Warnings3|Acc]);
+ [Warnings1, Warnings2, Warnings3|NewAcc]);
get_warnings_from_modules([], #st{plt = Plt}, DocPlt, _, Acc) ->
{lists:flatten(Acc), Plt, DocPlt}.
+postprocess_dataflow_warns(RawWarnings, State, WarnAcc) ->
+ postprocess_dataflow_warns(RawWarnings, State, WarnAcc, []).
+
+postprocess_dataflow_warns([], _State, WAcc, Acc) ->
+ {WAcc, lists:reverse(Acc)};
+postprocess_dataflow_warns([{?WARN_CONTRACT_RANGE, {File, CallL}, Msg}|Rest],
+ #st{codeserver = Codeserver} = State, WAcc, Acc) ->
+ {contract_range, [Contract, M, F, A, ArgStrings, CRet]} = Msg,
+ {ok, {{File, _ContrL} = FileLine, _C}} =
+ dialyzer_codeserver:lookup_mfa_contract({M,F,A}, Codeserver),
+ NewMsg =
+ {contract_range, [Contract, M, F, ArgStrings, CallL, CRet]},
+ W = {?WARN_CONTRACT_RANGE, FileLine, NewMsg},
+ Filter =
+ fun({?WARN_CONTRACT_TYPES, FL, _}) when FL =:= FileLine -> false;
+ (_) -> true
+ end,
+ postprocess_dataflow_warns(Rest, State, lists:filter(Filter, WAcc), [W|Acc]);
+postprocess_dataflow_warns([W|Rest], State, Wacc, Acc) ->
+ postprocess_dataflow_warns(Rest, State, Wacc, [W|Acc]).
+
refine_succ_typings(ModulePostorder, State) ->
?debug("Module postorder: ~p\n", [ModulePostorder]),
refine_succ_typings(ModulePostorder, State, []).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 01:34:52 +0000