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-rw-r--r--lib/dialyzer/src/dialyzer.erl15
-rw-r--r--lib/dialyzer/src/dialyzer_cl.erl8
-rw-r--r--lib/dialyzer/src/dialyzer_contracts.erl90
-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl1058
-rw-r--r--lib/dialyzer/src/dialyzer_succ_typings.erl82
-rw-r--r--lib/dialyzer/src/dialyzer_typesig.erl355
6 files changed, 846 insertions, 762 deletions
diff --git a/lib/dialyzer/src/dialyzer.erl b/lib/dialyzer/src/dialyzer.erl
index 35156afff2..bb7e39dfda 100644
--- a/lib/dialyzer/src/dialyzer.erl
+++ b/lib/dialyzer/src/dialyzer.erl
@@ -423,6 +423,9 @@ message_to_string({call_without_opaque, [M, F, Args, ExpectedTriples]}) ->
message_to_string({opaque_eq, [Type, _Op, OpaqueType]}) ->
io_lib:format("Attempt to test for equality between a term of type ~s"
" and a term of opaque type ~s\n", [Type, OpaqueType]);
+message_to_string({opaque_guard, [Arg1, Infix, Arg2, ArgNs]}) ->
+ io_lib:format("Guard test ~s ~s ~s contains ~s\n",
+ [Arg1, Infix, Arg2, form_positions(ArgNs)]);
message_to_string({opaque_guard, [Guard, Args]}) ->
io_lib:format("Guard test ~w~s breaks the opaqueness of its argument\n",
[Guard, Args]);
@@ -435,8 +438,16 @@ message_to_string({opaque_match, [Pat, OpaqueType, OpaqueTerm]}) ->
message_to_string({opaque_neq, [Type, _Op, OpaqueType]}) ->
io_lib:format("Attempt to test for inequality between a term of type ~s"
" and a term of opaque type ~s\n", [Type, OpaqueType]);
-message_to_string({opaque_type_test, [Fun, Opaque]}) ->
- io_lib:format("The type test ~s(~s) breaks the opaqueness of the term ~s\n", [Fun, Opaque, Opaque]);
+message_to_string({opaque_type_test, [Fun, Args, Arg, ArgType]}) ->
+ io_lib:format("The type test ~s~s breaks the opaqueness of the term ~s~s\n",
+ [Fun, Args, Arg, ArgType]);
+message_to_string({opaque_size, [SizeType, Size]}) ->
+ io_lib:format("The size ~s breaks the opaqueness of ~s\n",
+ [SizeType, Size]);
+message_to_string({opaque_call, [M, F, Args, Culprit, OpaqueType]}) ->
+ io_lib:format("The call ~s:~s~s breaks the opaqueness of the term ~s :: ~s\n",
+ [M, F, Args, Culprit, OpaqueType]);
+
%%----- Warnings for concurrency errors --------------------
message_to_string({race_condition, [M, F, Args, Reason]}) ->
io_lib:format("The call ~w:~w~s ~s\n", [M, F, Args, Reason]);
diff --git a/lib/dialyzer/src/dialyzer_cl.erl b/lib/dialyzer/src/dialyzer_cl.erl
index 365c0b36d4..a7be6e0d05 100644
--- a/lib/dialyzer/src/dialyzer_cl.erl
+++ b/lib/dialyzer/src/dialyzer_cl.erl
@@ -2,7 +2,7 @@
%%-------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -613,7 +613,7 @@ cl_loop(State, LogCache) ->
-spec failed_anal_msg(string(), [_]) -> nonempty_string().
failed_anal_msg(Reason, LogCache) ->
- Msg = "Analysis failed with error:\n" ++ Reason ++ "\n",
+ Msg = "Analysis failed with error:\n" ++ lists:flatten(Reason) ++ "\n",
case LogCache =:= [] of
true -> Msg;
false ->
@@ -640,7 +640,7 @@ store_unknown_behaviours(#cl_state{unknown_behaviours = Behs} = St, Beh) ->
-spec cl_error(string()) -> no_return().
cl_error(Msg) ->
- throw({dialyzer_error, Msg}).
+ throw({dialyzer_error, lists:flatten(Msg)}).
-spec cl_error(#cl_state{}, string()) -> no_return().
@@ -650,7 +650,7 @@ cl_error(State, Msg) ->
Outfile -> io:format(Outfile, "\n~s\n", [Msg])
end,
maybe_close_output_file(State),
- throw({dialyzer_error, Msg}).
+ throw({dialyzer_error, lists:flatten(Msg)}).
return_value(State = #cl_state{erlang_mode = ErlangMode,
mod_deps = ModDeps,
diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl
index 332a326b0d..3467ab4e65 100644
--- a/lib/dialyzer/src/dialyzer_contracts.erl
+++ b/lib/dialyzer/src/dialyzer_contracts.erl
@@ -2,7 +2,7 @@
%%-----------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -21,10 +21,10 @@
-module(dialyzer_contracts).
-export([check_contract/2,
- check_contracts/3,
+ check_contracts/4,
contracts_without_fun/3,
contract_to_string/1,
- get_invalid_contract_warnings/3,
+ get_invalid_contract_warnings/4,
get_contract_args/1,
get_contract_return/1,
get_contract_return/2,
@@ -160,17 +160,22 @@ process_contract_remote_types(CodeServer) ->
dialyzer_codeserver:finalize_contracts(NewContractDict, NewCallbackDict,
CodeServer).
+-type opaques() :: [erl_types:erl_type()] | 'universe'.
+-type opaques_fun() :: fun((module()) -> opaques()).
+
-spec check_contracts([{mfa(), file_contract()}],
- dialyzer_callgraph:callgraph(), dict()) -> plt_contracts().
+ dialyzer_callgraph:callgraph(), dict(),
+ opaques_fun()) -> plt_contracts().
-check_contracts(Contracts, Callgraph, FunTypes) ->
+check_contracts(Contracts, Callgraph, FunTypes, FindOpaques) ->
FoldFun =
fun(Label, Type, NewContracts) ->
case dialyzer_callgraph:lookup_name(Label, Callgraph) of
{ok, {M,F,A} = MFA} ->
case orddict:find(MFA, Contracts) of
{ok, {_FileLine, Contract}} ->
- case check_contract(Contract, Type) of
+ Opaques = FindOpaques(M),
+ case check_contract(Contract, Type, Opaques) of
ok ->
case erl_bif_types:is_known(M, F, A) of
true ->
@@ -192,7 +197,10 @@ check_contracts(Contracts, Callgraph, FunTypes) ->
%% Checks all components of a contract
-spec check_contract(#contract{}, erl_types:erl_type()) -> 'ok' | {'error', term()}.
-check_contract(#contract{contracts = Contracts}, SuccType) ->
+check_contract(Contract, SuccType) ->
+ check_contract(Contract, SuccType, 'universe').
+
+check_contract(#contract{contracts = Contracts}, SuccType, Opaques) ->
try
Contracts1 = [{Contract, insert_constraints(Constraints, dict:new())}
|| {Contract, Constraints} <- Contracts],
@@ -203,9 +211,9 @@ check_contract(#contract{contracts = Contracts}, SuccType) ->
error ->
{error, {overlapping_contract, []}};
ok ->
- InfList = [erl_types:t_inf(Contract, SuccType, opaque)
+ InfList = [erl_types:t_inf(Contract, SuccType, Opaques)
|| Contract <- Contracts2],
- case check_contract_inf_list(InfList, SuccType) of
+ case check_contract_inf_list(InfList, SuccType, Opaques) of
{error, _} = Invalid -> Invalid;
ok -> check_extraneous(Contracts2, SuccType)
end
@@ -217,7 +225,7 @@ check_contract(#contract{contracts = Contracts}, SuccType) ->
check_domains([_]) -> ok;
check_domains([Dom|Doms]) ->
Fun = fun(D) ->
- erl_types:any_none_or_unit(erl_types:t_inf_lists(Dom, D, opaque))
+ erl_types:any_none_or_unit(erl_types:t_inf_lists(Dom, D))
end,
case lists:all(Fun, Doms) of
true -> check_domains(Doms);
@@ -227,23 +235,23 @@ check_domains([Dom|Doms]) ->
%% Allow a contract if one of the overloaded contracts is possible.
%% We used to be more strict, e.g., all overloaded contracts had to be
%% possible.
-check_contract_inf_list([FunType|Left], SuccType) ->
+check_contract_inf_list([FunType|Left], SuccType, Opaques) ->
FunArgs = erl_types:t_fun_args(FunType),
case lists:any(fun erl_types:t_is_none_or_unit/1, FunArgs) of
- true -> check_contract_inf_list(Left, SuccType);
+ true -> check_contract_inf_list(Left, SuccType, Opaques);
false ->
STRange = erl_types:t_fun_range(SuccType),
case erl_types:t_is_none_or_unit(STRange) of
true -> ok;
false ->
Range = erl_types:t_fun_range(FunType),
- case erl_types:t_is_none(erl_types:t_inf(STRange, Range, opaque)) of
- true -> check_contract_inf_list(Left, SuccType);
+ case erl_types:t_is_none(erl_types:t_inf(STRange, Range)) of
+ true -> check_contract_inf_list(Left, SuccType, Opaques);
false -> ok
end
end
end;
-check_contract_inf_list([], _SuccType) ->
+check_contract_inf_list([], _SuccType, _Opaques) ->
{error, invalid_contract}.
check_extraneous([], _SuccType) -> ok;
@@ -259,7 +267,7 @@ check_extraneous_1(Contract, SuccType) ->
STRng = erl_types:t_fun_range(SuccType),
?debug("CR = ~p\nSR = ~p\n", [CRngs, STRng]),
case [CR || CR <- CRngs,
- erl_types:t_is_none(erl_types:t_inf(CR, STRng, opaque))] of
+ erl_types:t_is_none(erl_types:t_inf(CR, STRng))] of
[] ->
CRngList = list_part(CRng),
STRngList = list_part(STRng),
@@ -268,7 +276,7 @@ check_extraneous_1(Contract, SuccType) ->
true ->
CRngElements = erl_types:t_list_elements(CRngList),
STRngElements = erl_types:t_list_elements(STRngList),
- Inf = erl_types:t_inf(CRngElements, STRngElements, opaque),
+ Inf = erl_types:t_inf(CRngElements, STRngElements),
case erl_types:t_is_none(Inf) of
true -> {error, invalid_contract};
false -> ok
@@ -278,7 +286,7 @@ check_extraneous_1(Contract, SuccType) ->
end.
list_part(Type) ->
- erl_types:t_inf(erl_types:t_list(), Type, opaque).
+ erl_types:t_inf(erl_types:t_list(), Type).
is_not_nil_list(Type) ->
erl_types:t_is_list(Type) andalso not erl_types:t_is_nil(Type).
@@ -374,7 +382,7 @@ insert_constraints([], Dict) -> Dict.
store_tmp_contract(MFA, FileLine, TypeSpec, SpecDict, RecordsDict) ->
%% io:format("contract from form: ~p\n", [TypeSpec]),
TmpContract = contract_from_form(TypeSpec, RecordsDict, FileLine),
- %% io:format("contract: ~p\n", [Contract]),
+ %% io:format("contract: ~p\n", [TmpContract]),
dict:store(MFA, {FileLine, TmpContract}, SpecDict).
contract_from_form(Forms, RecDict, FileLine) ->
@@ -494,30 +502,35 @@ general_domain([], AccSig) ->
AccSig1 = erl_types:subst_all_vars_to_any(AccSig),
erl_types:t_fun_args(AccSig1).
--spec get_invalid_contract_warnings([module()], dialyzer_codeserver:codeserver(), dialyzer_plt:plt()) -> [dial_warning()].
+-spec get_invalid_contract_warnings([module()],
+ dialyzer_codeserver:codeserver(),
+ dialyzer_plt:plt(),
+ opaques_fun()) -> [dial_warning()].
-get_invalid_contract_warnings(Modules, CodeServer, Plt) ->
- get_invalid_contract_warnings_modules(Modules, CodeServer, Plt, []).
+get_invalid_contract_warnings(Modules, CodeServer, Plt, FindOpaques) ->
+ get_invalid_contract_warnings_modules(Modules, CodeServer, Plt, FindOpaques, []).
-get_invalid_contract_warnings_modules([Mod|Mods], CodeServer, Plt, Acc) ->
+get_invalid_contract_warnings_modules([Mod|Mods], CodeServer, Plt, FindOpaques, Acc) ->
Contracts1 = dialyzer_codeserver:lookup_mod_contracts(Mod, CodeServer),
Contracts2 = dict:to_list(Contracts1),
Records = dialyzer_codeserver:lookup_mod_records(Mod, CodeServer),
- NewAcc = get_invalid_contract_warnings_funs(Contracts2, Plt, Records, Acc),
- get_invalid_contract_warnings_modules(Mods, CodeServer, Plt, NewAcc);
-get_invalid_contract_warnings_modules([], _CodeServer, _Plt, Acc) ->
+ NewAcc = get_invalid_contract_warnings_funs(Contracts2, Plt, Records, FindOpaques, Acc),
+ get_invalid_contract_warnings_modules(Mods, CodeServer, Plt, FindOpaques, NewAcc);
+get_invalid_contract_warnings_modules([], _CodeServer, _Plt, _FindOpaques, Acc) ->
Acc.
get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
- Plt, RecDict, Acc) ->
+ Plt, RecDict, FindOpaques, Acc) ->
case dialyzer_plt:lookup(Plt, MFA) of
none ->
%% This must be a contract for a non-available function. Just accept it.
- get_invalid_contract_warnings_funs(Left, Plt, RecDict, Acc);
+ get_invalid_contract_warnings_funs(Left, Plt, RecDict, FindOpaques, Acc);
{value, {Ret, Args}} ->
Sig = erl_types:t_fun(Args, Ret),
+ {M, _F, _A} = MFA,
+ Opaques = FindOpaques(M),
NewAcc =
- case check_contract(Contract, Sig) of
+ case check_contract(Contract, Sig, Opaques) of
{error, invalid_contract} ->
[invalid_contract_warning(MFA, FileLine, Sig, RecDict)|Acc];
{error, {overlapping_contract, []}} ->
@@ -551,7 +564,7 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
BifArgs = erl_bif_types:arg_types(M, F, A),
BifRet = erl_bif_types:type(M, F, A),
BifSig = erl_types:t_fun(BifArgs, BifRet),
- case check_contract(Contract, BifSig) of
+ case check_contract(Contract, BifSig, Opaques) of
{error, _} ->
[invalid_contract_warning(MFA, FileLine, BifSig, RecDict)
|Acc];
@@ -564,9 +577,9 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left],
RecDict, Acc)
end
end,
- get_invalid_contract_warnings_funs(Left, Plt, RecDict, NewAcc)
+ get_invalid_contract_warnings_funs(Left, Plt, RecDict, FindOpaques, NewAcc)
end;
-get_invalid_contract_warnings_funs([], _Plt, _RecDict, Acc) ->
+get_invalid_contract_warnings_funs([], _Plt, _RecDict, _FindOpaques, Acc) ->
Acc.
invalid_contract_warning({M, F, A}, FileLine, SuccType, RecDict) ->
@@ -601,16 +614,23 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) ->
end.
extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) ->
- SigString = lists:flatten(dialyzer_utils:format_sig(Sig, RecDict)),
- ContractString0 = lists:flatten(dialyzer_utils:format_sig(CSig, 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),
+ CSigUnopaque = erl_types:t_unopaque(CSig),
+ SigString0 =
+ lists:flatten(dialyzer_utils:format_sig(SigUnopaque, RecDict)),
+ ContractString0 =
+ lists:flatten(dialyzer_utils:format_sig(CSigUnopaque, RecDict)),
%% The only difference is in record fields containing 'undefined' or not.
- IsUndefRecordFieldsRelated = SigString =:= ContractString0,
+ IsUndefRecordFieldsRelated = SigString0 =:= ContractString0,
{IsRemoteTypesRelated, SubtypeRelation} =
is_remote_types_related(Contract, CSig, Sig, RecDict),
case IsUndefRecordFieldsRelated orelse IsRemoteTypesRelated of
true ->
no_warning;
false ->
+ SigString = lists:flatten(dialyzer_utils:format_sig(Sig, RecDict)),
ContractString = contract_to_string(Contract),
{Tag, Msg} =
case SubtypeRelation of
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index 922ccad599..3591d5be8e 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -2,7 +2,7 @@
%%--------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -41,27 +41,33 @@
-include("dialyzer.hrl").
+%%-import(helper, %% 'helper' could be any module doing sanity checks...
-import(erl_types,
- [any_none/1, t_any/0, t_atom/0, t_atom/1, t_atom_vals/1,
+ [t_inf/2, t_inf/3, t_inf_lists/2, t_inf_lists/3,
+ t_inf_lists/3, t_is_equal/2, t_is_subtype/2, t_subtract/2,
+ t_sup/1, t_sup/2]).
+
+-import(erl_types,
+ [any_none/1, t_any/0, t_atom/0, t_atom/1, t_atom_vals/1, t_atom_vals/2,
t_binary/0, t_boolean/0,
t_bitstr/0, t_bitstr/2, t_bitstr_concat/1, t_bitstr_match/2,
- t_cons/0, t_cons/2, t_cons_hd/1, t_cons_tl/1, t_contains_opaque/1,
+ t_cons/0, t_cons/2, t_cons_hd/2, t_cons_tl/2,
+ t_contains_opaque/2,
t_find_opaque_mismatch/2, t_float/0, t_from_range/2, t_from_term/1,
- t_fun/0, t_fun/2, t_fun_args/1, t_fun_range/1,
- t_inf/2, t_inf/3, t_inf_lists/2, t_inf_lists/3, t_inf_lists_masked/3,
- t_integer/0, t_integers/1,
- t_is_any/1, t_is_atom/1, t_is_atom/2, t_is_boolean/1, t_is_equal/2,
- t_is_integer/1, t_is_nil/1, t_is_none/1, t_is_none_or_unit/1,
- t_is_number/1, t_is_reference/1, t_is_pid/1, t_is_port/1,
- t_is_subtype/2, t_is_unit/1,
+ t_fun/0, t_fun/2, t_fun_args/1, t_fun_args/2, t_fun_range/1,
+ t_fun_range/2, t_integer/0, t_integers/1,
+ t_is_any/1, t_is_atom/1, t_is_atom/2, t_is_any_atom/3,
+ t_is_boolean/2,
+ t_is_integer/2, t_is_nil/2, t_is_none/1, t_is_none_or_unit/1,
+ t_is_number/2, t_is_reference/2, t_is_pid/2, t_is_port/2,
+ t_is_unit/1,
t_limit/2, t_list/0, t_maybe_improper_list/0, t_module/0,
- t_none/0, t_non_neg_integer/0, t_number/0, t_number_vals/1,
- t_opaque_match_atom/2, t_opaque_match_record/2,
- t_opaque_matching_structure/2,
+ t_none/0, t_non_neg_integer/0, t_number/0, t_number_vals/2,
t_pid/0, t_port/0, t_product/1, t_reference/0,
- t_sup/1, t_sup/2, t_subtract/2, t_to_string/2, t_to_tlist/1,
- t_tuple/0, t_tuple/1, t_tuple_args/1, t_tuple_subtypes/1,
- t_unit/0, t_unopaque/1]).
+ t_to_string/2, t_to_tlist/1,
+ t_tuple/0, t_tuple/1, t_tuple_args/1, t_tuple_args/2,
+ t_tuple_subtypes/2,
+ t_unit/0, t_unopaque/2]).
%%-define(DEBUG, true).
%%-define(DEBUG_PP, true).
@@ -204,7 +210,7 @@ analyze_loop(State) ->
traverse(Tree, Map, State) ->
?debug("Handling ~p\n", [cerl:type(Tree)]),
- %%debug_pp_map(Map),
+ %% debug_pp_map(Map),
case cerl:type(Tree) of
alias ->
%% This only happens when checking for illegal record patterns
@@ -256,12 +262,7 @@ traverse(Tree, Map, State) ->
case cerl:unfold_literal(Tree) of
Tree ->
Type = literal_type(Tree),
- NewType =
- case erl_types:t_opaque_match_atom(Type, State#state.opaques) of
- [Opaque] -> Opaque;
- _ -> Type
- end,
- {State, Map, NewType};
+ {State, Map, Type};
NewTree -> traverse(NewTree, Map, State)
end;
module ->
@@ -286,8 +287,11 @@ traverse(Tree, Map, State) ->
SMA;
false ->
State2 =
- case (t_is_any(ArgType) orelse t_is_simple(ArgType)
- orelse is_call_to_send(Arg)) of
+ case
+ t_is_any(ArgType)
+ orelse t_is_simple(ArgType, State)
+ orelse is_call_to_send(Arg)
+ of
true -> % do not warn in these cases
State1;
false ->
@@ -311,15 +315,7 @@ traverse(Tree, Map, State) ->
case state__lookup_type_for_letrec(Tree, State) of
error ->
LType = lookup_type(Tree, Map),
- Opaques = State#state.opaques,
- case t_opaque_match_record(LType, Opaques) of
- [Opaque] -> {State, Map, Opaque};
- _ ->
- case t_opaque_match_atom(LType, Opaques) of
- [Opaque] -> {State, Map, Opaque};
- _ -> {State, Map, LType}
- end
- end;
+ {State, Map, LType};
{ok, Type} -> {State, Map, Type}
end;
Other ->
@@ -367,7 +363,8 @@ handle_apply(Tree, Map, State) ->
Tree, Msg),
{State3, Map2, t_none()};
false ->
- NewArgs = t_inf_lists(ArgTypes, t_fun_args(OpType1)),
+ NewArgs = t_inf_lists(ArgTypes,
+ t_fun_args(OpType1, 'universe')),
case any_none(NewArgs) of
true ->
Msg = {fun_app_args,
@@ -378,7 +375,7 @@ handle_apply(Tree, Map, State) ->
{State3, enter_type(Op, OpType1, Map2), t_none()};
false ->
Map3 = enter_type_lists(Args, NewArgs, Map2),
- Range0 = t_fun_range(OpType1),
+ Range0 = t_fun_range(OpType1, 'universe'),
Range =
case t_is_unit(Range0) of
true -> t_none();
@@ -423,83 +420,55 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
{M, F, A} = Fun,
case erl_bif_types:is_known(M, F, A) of
true ->
- IsBIF = true,
BArgs = erl_bif_types:arg_types(M, F, A),
BRange =
fun(FunArgs) ->
- ArgPos = erl_bif_types:structure_inspecting_args(M, F, A),
- NewFunArgs =
- case ArgPos =:= [] of
- true -> FunArgs;
- false -> % some positions need to be un-opaqued
- N = length(FunArgs),
- PFs = lists:zip(lists:seq(1, N), FunArgs),
- [case ordsets:is_element(P, ArgPos) of
- true -> erl_types:t_unopaque(FArg, Opaques);
- false -> FArg
- end || {P, FArg} <- PFs]
- end,
- erl_bif_types:type(M, F, A, NewFunArgs)
+ erl_bif_types:type(M, F, A, FunArgs, Opaques)
end,
{BArgs, BRange};
- false -> IsBIF = false, GenSig
+ false ->
+ GenSig
end;
- local -> IsBIF = false, GenSig
+ local -> GenSig
end,
{SigArgs, SigRange} =
- %% if there is hard-coded or contract information with opaque types,
- %% the checking for possible type violations needs to take place w.r.t.
- %% this information and not w.r.t. the structure-based success typing.
- case prefer_opaque_types(CArgs, BifArgs) of
- true -> {AnyArgs, t_any()}; % effectively forgets the success typing
- false ->
- case Sig of
- {value, {SR, SA}} -> {SA, SR};
- none -> {AnyArgs, t_any()}
- end
- end,
- ArgModeMask = [case lists:member(Arg, Opaques) of
- true -> opaque;
- false -> structured
- end || Arg <- ArgTypes],
- NewArgsSig = t_inf_lists_masked(SigArgs, ArgTypes, ArgModeMask),
- NewArgsContract = t_inf_lists_masked(CArgs, ArgTypes, ArgModeMask),
- NewArgsBif = t_inf_lists_masked(BifArgs, ArgTypes, ArgModeMask),
- NewArgTypes0 = t_inf_lists_masked(NewArgsSig, NewArgsContract, ArgModeMask),
- NewArgTypes = t_inf_lists_masked(NewArgTypes0, NewArgsBif, ArgModeMask),
- BifRet = BifRange(NewArgTypes),
- {TmpArgTypes, TmpArgsContract} =
- case (TypeOfApply =:= remote) andalso (not IsBIF) of
- true ->
- List1 = lists:zip(CArgs, NewArgTypes),
- List2 = lists:zip(CArgs, NewArgsContract),
- {[erl_types:t_unopaque_on_mismatch(T1, T2, Opaques)
- || {T1, T2} <- List1],
- [erl_types:t_unopaque_on_mismatch(T1, T2, Opaques)
- || {T1, T2} <- List2]};
- false -> {NewArgTypes, NewArgsContract}
- end,
- ContrRet = CRange(TmpArgTypes),
- RetMode =
- case t_contains_opaque(ContrRet) orelse t_contains_opaque(BifRet) of
- true -> opaque;
- false -> structured
+ case Sig of
+ {value, {SR, SA}} -> {SA, SR};
+ none -> {AnyArgs, t_any()}
end,
- 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))]),
+ ?debug("Fun: ~p\n", [state__lookup_name(Fun, State)]),
+ ?debug("Module ~p\n", [State#state.module]),
+ ?debug("CArgs ~s\n", [erl_types:t_to_string(t_product(CArgs))]),
+ ?debug("ArgTypes ~s\n", [erl_types:t_to_string(t_product(ArgTypes))]),
+ ?debug("BifArgs ~p\n", [erl_types:t_to_string(t_product(BifArgs))]),
+
+ NewArgsSig = t_inf_lists(SigArgs, ArgTypes, Opaques),
+ ?debug("SigArgs ~s\n", [erl_types:t_to_string(t_product(SigArgs))]),
?debug("NewArgsSig: ~s\n", [erl_types:t_to_string(t_product(NewArgsSig))]),
+ NewArgsContract = t_inf_lists(CArgs, ArgTypes, Opaques),
?debug("NewArgsContract: ~s\n",
[erl_types:t_to_string(t_product(NewArgsContract))]),
+ NewArgsBif = t_inf_lists(BifArgs, ArgTypes, Opaques),
?debug("NewArgsBif: ~s\n", [erl_types:t_to_string(t_product(NewArgsBif))]),
- ?debug("NewArgTypes: ~s\n", [erl_types:t_to_string(t_product(NewArgTypes))]),
+ NewArgTypes0 = t_inf_lists(NewArgsSig, NewArgsContract),
+ NewArgTypes = t_inf_lists(NewArgTypes0, NewArgsBif, Opaques),
+ ?debug("NewArgTypes ~s\n", [erl_types:t_to_string(t_product(NewArgTypes))]),
+ ?debug("\n", []),
+
+ BifRet = BifRange(NewArgTypes),
+ ContrRet = CRange(NewArgTypes),
+ RetWithoutContr = t_inf(SigRange, BifRet),
+ RetWithoutLocal = t_inf(ContrRet, RetWithoutContr),
+
?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))]),
- ?debug("SigRet: ~s\n", [erl_types:t_to_string(SigRange)]),
+ ?debug("SigRange: ~s\n", [erl_types:t_to_string(SigRange)]),
+ ?debug("ContrRet: ~s\n", [erl_types:t_to_string(CRange(NewArgTypes))]),
+ ?debug("LocalRet: ~s\n", [erl_types:t_to_string(LocalRet)]),
+
State1 =
case is_race_analysis_enabled(State) of
true ->
@@ -513,6 +482,9 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
FailedConj = any_none([RetWithoutLocal|NewArgTypes]),
IsFailBif = t_is_none(BifRange(BifArgs)),
IsFailSig = t_is_none(SigRange),
+ ?debug("FailedConj: ~p~n", [FailedConj]),
+ ?debug("IsFailBif: ~p~n", [IsFailBif]),
+ ?debug("IsFailSig: ~p~n", [IsFailSig]),
State2 =
case FailedConj andalso not (IsFailBif orelse IsFailSig) of
true ->
@@ -532,14 +504,14 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
false ->
FailedSig = any_none(NewArgsSig),
FailedContract =
- any_none([CRange(TmpArgsContract)|NewArgsContract]),
+ any_none([CRange(NewArgsContract)|NewArgsContract]),
FailedBif = any_none([BifRange(NewArgsBif)|NewArgsBif]),
InfSig = t_inf(t_fun(SigArgs, SigRange),
- t_fun(BifArgs, BifRange(BifArgs))),
+ 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),
+ Contr, CArgs, State1, FailReason, Opaques),
WarnType = case Msg of
{call, _} -> ?WARN_FAILING_CALL;
{apply, _} -> ?WARN_FAILING_CALL;
@@ -547,7 +519,8 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
{call_without_opaque, _} -> ?WARN_OPAQUE;
{opaque_type_test, _} -> ?WARN_OPAQUE
end,
- state__add_warning(State1, WarnType, Tree, Msg)
+ Frc = {erlang, is_record, 3} =:= state__lookup_name(Fun, State),
+ state__add_warning(State1, WarnType, Tree, Msg, Frc)
end;
false -> State1
end,
@@ -571,7 +544,7 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
TotalRet =
case t_is_none(LocalRet) andalso t_is_unit(RetWithoutLocal) of
true -> RetWithoutLocal;
- false -> t_inf(RetWithoutLocal, LocalRet, opaque)
+ false -> t_inf(RetWithoutLocal, LocalRet)
end,
NewAccRet = t_sup(AccRet, TotalRet),
?debug("NewAccRet: ~s\n", [t_to_string(NewAccRet)]),
@@ -590,7 +563,7 @@ apply_fail_reason(FailedSig, FailedBif, FailedContract) ->
end.
get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes,
- Sig, Contract, ContrArgs, State, FailReason) ->
+ Sig, Contract, ContrArgs, State, FailReason, Opaques) ->
ArgStrings = format_args(Args, ArgTypes, State),
ContractInfo =
case Contract of
@@ -599,44 +572,52 @@ get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes,
dialyzer_contracts:contract_to_string(C)};
none -> {false, none}
end,
- EnumArgTypes =
- case NewArgTypes of
- [] -> [];
- _ -> lists:zip(lists:seq(1, length(NewArgTypes)), NewArgTypes)
- end,
+ EnumArgTypes = lists:zip(lists:seq(1, length(NewArgTypes)), NewArgTypes),
ArgNs = [Arg || {Arg, Type} <- EnumArgTypes, t_is_none(Type)],
case state__lookup_name(Fun, State) of
- {M, F, _A} ->
- case is_opaque_type_test_problem(Fun, NewArgTypes, State) of
- true ->
- [Opaque] = NewArgTypes,
- {opaque_type_test, [atom_to_list(F), erl_types:t_to_string(Opaque)]};
- false ->
+ {M, F, A} ->
+ case is_opaque_type_test_problem(Fun, Args, NewArgTypes, State) of
+ {yes, Arg, ArgType} ->
+ {opaque_type_test, [atom_to_list(F), ArgStrings,
+ format_arg(Arg), format_type(ArgType, State)]};
+ no ->
SigArgs = t_fun_args(Sig),
- case is_opaque_related_problem(ArgNs, ArgTypes) of
- true -> %% an opaque term is used where a structured term is expected
- ExpectedArgs =
- case FailReason of
- only_sig -> SigArgs;
- _ -> ContrArgs
- end,
- {call_with_opaque, [M, F, ArgStrings, ArgNs, ExpectedArgs]};
- false ->
- case is_opaque_related_problem(ArgNs, SigArgs) orelse
- is_opaque_related_problem(ArgNs, ContrArgs) of
- true -> %% a structured term is used where an opaque is expected
- ExpectedTriples =
- case FailReason of
- only_sig -> expected_arg_triples(ArgNs, SigArgs, State);
- _ -> expected_arg_triples(ArgNs, ContrArgs, State)
- end,
- {call_without_opaque, [M, F, ArgStrings, ExpectedTriples]};
- false -> %% there is a structured term clash in some argument
- {call, [M, F, ArgStrings,
- ArgNs, FailReason,
- format_sig_args(Sig, State),
- format_type(t_fun_range(Sig), State),
- ContractInfo]}
+ BadOpaque =
+ opaque_problems([SigArgs, ContrArgs], ArgTypes, Opaques, ArgNs),
+ %% In fact *both* 'call_with_opaque' and
+ %% 'call_without_opaque' are possible.
+ case lists:keyfind(decl, 1, BadOpaque) of
+ {decl, BadArgs} ->
+ %% a structured term is used where an opaque is expected
+ ExpectedTriples =
+ case FailReason of
+ only_sig -> expected_arg_triples(BadArgs, SigArgs, State);
+ _ -> expected_arg_triples(BadArgs, ContrArgs, State)
+ end,
+ {call_without_opaque, [M, F, ArgStrings, ExpectedTriples]};
+ false ->
+ case lists:keyfind(use, 1, BadOpaque) of
+ {use, BadArgs} ->
+ %% an opaque term is used where a structured term is expected
+ ExpectedArgs =
+ case FailReason of
+ only_sig -> SigArgs;
+ _ -> ContrArgs
+ end,
+ {call_with_opaque, [M, F, ArgStrings, BadArgs, ExpectedArgs]};
+ false ->
+ case
+ erl_bif_types:opaque_args(M, F, A, ArgTypes, Opaques)
+ of
+ [] -> %% there is a structured term clash in some argument
+ {call, [M, F, ArgStrings,
+ ArgNs, FailReason,
+ format_sig_args(Sig, State),
+ format_type(t_fun_range(Sig), State),
+ ContractInfo]};
+ Ns ->
+ {call_with_opaque, [M, F, ArgStrings, Ns, ContrArgs]}
+ end
end
end
end;
@@ -648,20 +629,28 @@ get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes,
ContractInfo]}
end.
-%% returns 'true' if we are running with opaque on (not checked yet),
-%% and there is either a contract or hard-coded type information with
-%% opaque types
-%% TODO: check that we are running with opaque types
-%% TODO: check the return type also
-prefer_opaque_types(CArgs, BifArgs) ->
- t_contains_opaque(t_product(CArgs))
- orelse t_contains_opaque(t_product(BifArgs)).
-
-is_opaque_related_problem(ArgNs, ArgTypes) ->
- Fun = fun (N) -> erl_types:t_contains_opaque(lists:nth(N, ArgTypes)) end,
- ArgNs =/= [] andalso lists:all(Fun, ArgNs).
-
-is_opaque_type_test_problem(Fun, ArgTypes, State) ->
+%% -> [{ElementI, [ArgN]}] where [ArgN] is a non-empty list of
+%% arguments containing unknown opaque types and Element is 1 or 2.
+opaque_problems(ContractOrSigList, ArgTypes, Opaques, ArgNs) ->
+ ArgElementList = find_unknown(ContractOrSigList, ArgTypes, Opaques, ArgNs),
+ F = fun(1) -> decl; (2) -> use end,
+ [{F(ElementI), lists:usort([ArgN || {ArgN, EI} <- ArgElementList,
+ EI =:= ElementI])} ||
+ ElementI <- lists:usort([EI || {_, EI} <- ArgElementList])].
+
+%% -> [{ArgN, ElementI}] where ElementI = 1 means there is an unknown
+%% opaque type in argument ArgN of the the contract/signature,
+%% and ElementI = 2 means that there is an unknown opaque type in
+%% argument ArgN of the the (current) argument types.
+find_unknown(ContractOrSigList, ArgTypes, Opaques, NoneArgNs) ->
+ ArgNs = lists:seq(1, length(ArgTypes)),
+ [{ArgN, ElementI} ||
+ ContractOrSig <- ContractOrSigList,
+ {E1, E2, ArgN} <- lists:zip3(ContractOrSig, ArgTypes, ArgNs),
+ lists:member(ArgN, NoneArgNs),
+ ElementI <- erl_types:t_find_unknown_opaque(E1, E2, Opaques)].
+
+is_opaque_type_test_problem(Fun, Args, ArgTypes, State) ->
case Fun of
{erlang, FN, 1} when FN =:= is_atom; FN =:= is_boolean;
FN =:= is_binary; FN =:= is_bitstring;
@@ -669,10 +658,18 @@ is_opaque_type_test_problem(Fun, ArgTypes, State) ->
FN =:= is_integer; FN =:= is_list;
FN =:= is_number; FN =:= is_pid; FN =:= is_port;
FN =:= is_reference; FN =:= is_tuple ->
- [Type] = ArgTypes,
- erl_types:t_is_opaque(Type) andalso
- not lists:member(Type, State#state.opaques);
- _ -> false
+ type_test_opaque_arg(Args, ArgTypes, State#state.opaques);
+ {erlang, FN, 2} when FN =:= is_function ->
+ type_test_opaque_arg(Args, ArgTypes, State#state.opaques);
+ _ -> no
+ end.
+
+type_test_opaque_arg([], [], _Opaques) ->
+ no;
+type_test_opaque_arg([Arg|Args], [ArgType|ArgTypes], Opaques) ->
+ case erl_types:t_has_opaque_subtype(ArgType, Opaques) of
+ true -> {yes, Arg, ArgType};
+ false -> type_test_opaque_arg(Args, ArgTypes, Opaques)
end.
expected_arg_triples(ArgNs, ArgTypes, State) ->
@@ -683,47 +680,56 @@ expected_arg_triples(ArgNs, ArgTypes, State) ->
add_bif_warnings({erlang, Op, 2}, [T1, T2] = Ts, Tree, State)
when Op =:= '=:='; Op =:= '==' ->
- Type1 = erl_types:t_unopaque(T1, State#state.opaques),
- Type2 = erl_types:t_unopaque(T2, State#state.opaques),
- Inf = t_inf(T1, T2),
- Inf1 = t_inf(Type1, Type2),
- case t_is_none(Inf) andalso t_is_none(Inf1) andalso(not any_none(Ts))
- andalso (not is_int_float_eq_comp(T1, Op, T2)) of
+ Opaques = State#state.opaques,
+ Inf = t_inf(T1, T2, Opaques),
+ case
+ t_is_none(Inf) andalso (not any_none(Ts))
+ andalso (not is_int_float_eq_comp(T1, Op, T2, Opaques))
+ of
true ->
- Args = case erl_types:t_is_opaque(T1) of
- true -> [format_type(T2, State), Op, format_type(T1, State)];
- false -> [format_type(T1, State), Op, format_type(T2, State)]
- end,
- case any_opaque(Ts) of
- true ->
- state__add_warning(State, ?WARN_OPAQUE, Tree, {opaque_eq, Args});
- false ->
- state__add_warning(State, ?WARN_MATCHING, Tree, {exact_eq, Args})
+ %% Give priority to opaque warning (as usual).
+ case erl_types:t_find_unknown_opaque(T1, T2, Opaques) of
+ [] ->
+ Args = comp_format_args([], T1, Op, T2, State),
+ state__add_warning(State, ?WARN_MATCHING, Tree, {exact_eq, Args});
+ Ns ->
+ Args = comp_format_args(Ns, T1, Op, T2, State),
+ state__add_warning(State, ?WARN_OPAQUE, Tree, {opaque_eq, Args})
end;
false ->
State
end;
add_bif_warnings({erlang, Op, 2}, [T1, T2] = Ts, Tree, State)
when Op =:= '=/='; Op =:= '/=' ->
- Inf = t_inf(T1, T2),
- case t_is_none(Inf) andalso (not any_none(Ts))
- andalso (not is_int_float_eq_comp(T1, Op, T2)) andalso any_opaque(Ts) of
+ Opaques = State#state.opaques,
+ case
+ (not any_none(Ts))
+ andalso (not is_int_float_eq_comp(T1, Op, T2, Opaques))
+ of
true ->
- Args = case erl_types:t_is_opaque(T1) of
- true -> [format_type(T2, State), Op, format_type(T1, State)];
- false -> [format_type(T1, State), Op, format_type(T2, State)]
- end,
- state__add_warning(State, ?WARN_OPAQUE, Tree, {opaque_neq, Args});
+ case erl_types:t_find_unknown_opaque(T1, T2, Opaques) of
+ [] -> State;
+ Ns ->
+ Args = comp_format_args(Ns, T1, Op, T2, State),
+ state__add_warning(State, ?WARN_OPAQUE, Tree, {opaque_neq, Args})
+ end;
false ->
State
end;
add_bif_warnings(_, _, _, State) ->
State.
-is_int_float_eq_comp(T1, Op, T2) ->
+is_int_float_eq_comp(T1, Op, T2, Opaques) ->
(Op =:= '==' orelse Op =:= '/=') andalso
- ((erl_types:t_is_float(T1) andalso erl_types:t_is_integer(T2)) orelse
- (erl_types:t_is_integer(T1) andalso erl_types:t_is_float(T2))).
+ ((erl_types:t_is_float(T1, Opaques)
+ andalso t_is_integer(T2, Opaques)) orelse
+ (t_is_integer(T1, Opaques)
+ andalso erl_types:t_is_float(T2, Opaques))).
+
+comp_format_args([1|_], T1, Op, T2, State) ->
+ [format_type(T2, State), Op, format_type(T1, State)];
+comp_format_args(_, T1, Op, T2, State) ->
+ [format_type(T1, State), Op, format_type(T2, State)].
%%----------------------------------------
@@ -784,16 +790,27 @@ handle_bitstr(Tree, Map, State) ->
{State3, Map2, t_none()};
false ->
UnitVal = cerl:concrete(cerl:bitstr_unit(Tree)),
- Type =
- case t_number_vals(SizeType) of
- [OneSize] -> t_bitstr(0, OneSize * UnitVal);
- _ ->
- MinSize = erl_types:number_min(SizeType),
- t_bitstr(UnitVal, UnitVal * MinSize)
- end,
+ Opaques = State2#state.opaques,
+ NumberVals = t_number_vals(SizeType, Opaques),
+ {State3, Type} =
+ case t_contains_opaque(SizeType, Opaques) of
+ true ->
+ Msg = {opaque_size, [format_type(SizeType, State2),
+ format_cerl(Size)]},
+ {state__add_warning(State2, ?WARN_OPAQUE, Size, Msg),
+ t_none()};
+ false ->
+ case NumberVals of
+ [OneSize] -> {State2, t_bitstr(0, OneSize * UnitVal)};
+ unknown -> {State2, t_bitstr()};
+ _ ->
+ MinSize = erl_types:number_min(SizeType, Opaques),
+ {State2, t_bitstr(UnitVal, UnitVal * MinSize)}
+ end
+ end,
Map3 = enter_type_lists([Val, Size, Tree],
[ValType, SizeType, Type], Map2),
- {State2, Map3, Type}
+ {State3, Map3, Type}
end
end.
@@ -805,34 +822,47 @@ handle_call(Tree, Map, State) ->
Args = cerl:call_args(Tree),
MFAList = [M, F|Args],
{State1, Map1, [MType0, FType0|As]} = traverse_list(MFAList, Map, State),
- %% Module and function names should be treated as *structured terms*
- %% even if they happen to be identical to an atom (or tuple) which
- %% is also involved in the definition of an opaque data type.
- MType = t_inf(t_module(), t_unopaque(MType0)),
- FType = t_inf(t_atom(), t_unopaque(FType0)),
+ Opaques = State#state.opaques,
+ MType = t_inf(t_module(), MType0, Opaques),
+ FType = t_inf(t_atom(), FType0, Opaques),
Map2 = enter_type_lists([M, F], [MType, FType], Map1),
+ MOpaque = t_is_none(MType) andalso (not t_is_none(MType0)),
+ FOpaque = t_is_none(FType) andalso (not t_is_none(FType0)),
case any_none([MType, FType|As]) of
true ->
State2 =
- case t_is_none(MType) andalso (not t_is_none(MType0)) of
- true -> % This is a problem we just detected; not a known one
- MS = format_cerl(M),
- Msg = {app_call, [MS, format_cerl(F),
- format_args(Args, As, State1),
- MS, format_type(t_module(), State1),
- format_type(MType0, State1)]},
- state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg);
- false ->
- case t_is_none(FType) andalso (not t_is_none(FType0)) of
- true ->
- FS = format_cerl(F),
- Msg = {app_call, [format_cerl(M), FS,
- format_args(Args, As, State1),
- FS, format_type(t_atom(), State1),
- format_type(FType0, State1)]},
- state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg);
- false -> State1
- end
+ if
+ MOpaque -> % This is a problem we just detected; not a known one
+ MS = format_cerl(M),
+ case t_is_none(t_inf(t_module(), MType0)) of
+ true ->
+ Msg = {app_call, [MS, format_cerl(F),
+ format_args(Args, As, State1),
+ MS, format_type(t_module(), State1),
+ format_type(MType0, State1)]},
+ state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg);
+ false ->
+ Msg = {opaque_call, [MS, format_cerl(F),
+ format_args(Args, As, State1),
+ MS, format_type(MType0, State1)]},
+ state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg)
+ end;
+ FOpaque ->
+ FS = format_cerl(F),
+ case t_is_none(t_inf(t_atom(), FType0)) of
+ true ->
+ Msg = {app_call, [format_cerl(M), FS,
+ format_args(Args, As, State1),
+ FS, format_type(t_atom(), State1),
+ format_type(FType0, State1)]},
+ state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg);
+ false ->
+ Msg = {opaque_call, [format_cerl(M), FS,
+ format_args(Args, As, State1),
+ FS, format_type(FType0, State1)]},
+ state__add_warning(State1, ?WARN_FAILING_CALL, Tree, Msg)
+ end;
+ true -> State1
end,
{State2, Map2, t_none()};
false ->
@@ -874,7 +904,7 @@ handle_case(Tree, Map, State) ->
handle_clauses(Clauses, Arg, ArgType, ArgType, State2,
[], Map2, [], []),
Map3 = join_maps_end(MapList, Map2),
- debug_pp_map(Map2),
+ debug_pp_map(Map3),
{State3, Map3, Type}
end.
@@ -886,7 +916,7 @@ handle_cons(Tree, Map, State) ->
{State1, Map1, HdType} = traverse(Hd, Map, State),
{State2, Map2, TlType} = traverse(Tl, Map1, State1),
State3 =
- case t_is_none(t_inf(TlType, t_list())) of
+ case t_is_none(t_inf(TlType, t_list(), State2#state.opaques)) of
true ->
Msg = {improper_list_constr, [format_type(TlType, State2)]},
state__add_warning(State2, ?WARN_NON_PROPER_LIST, Tree, Msg);
@@ -979,8 +1009,9 @@ handle_receive(Tree, Map, State) ->
[], []),
Map1 = join_maps(MapList, Map),
{State3, Map2, TimeoutType} = traverse(Timeout, Map1, State2),
- case (t_is_atom(TimeoutType) andalso
- (t_atom_vals(TimeoutType) =:= ['infinity'])) of
+ Opaques = State3#state.opaques,
+ case (t_is_atom(TimeoutType, Opaques) andalso
+ (t_atom_vals(TimeoutType, Opaques) =:= ['infinity'])) of
true ->
{State3, Map2, ReceiveType};
false ->
@@ -1031,55 +1062,46 @@ handle_tuple(Tree, Map, State) ->
true ->
{State1, Map1, t_none()};
false ->
- %% Let's find out if this is a record or opaque construction.
+ %% Let's find out if this is a record
case Elements of
[Tag|Left] ->
case cerl:is_c_atom(Tag) of
true ->
TagVal = cerl:atom_val(Tag),
- case t_opaque_match_record(TupleType, State1#state.opaques) of
- [Opaque] ->
- RecStruct = t_opaque_matching_structure(TupleType, Opaque),
- RecFields = t_tuple_args(RecStruct),
- case bind_pat_vars(Elements, RecFields, [], Map1, State1) of
- {error, _, ErrorPat, ErrorType, _} ->
- Msg = {record_constr,
- [TagVal, format_patterns(ErrorPat),
- format_type(ErrorType, State1)]},
- State2 = state__add_warning(State1, ?WARN_MATCHING,
- Tree, Msg),
- {State2, Map1, t_none()};
- {Map2, _ETypes} ->
- {State1, Map2, Opaque}
- end;
- _ ->
- case state__lookup_record(TagVal, length(Left), State1) of
- error -> {State1, Map1, TupleType};
- {ok, RecType} ->
- InfTupleType = t_inf(RecType, TupleType),
- case t_is_none(InfTupleType) of
- true ->
- RecC = format_type(TupleType, State1),
- FieldDiffs = format_field_diffs(TupleType, State1),
- Msg = {record_constr, [RecC, FieldDiffs]},
- State2 = state__add_warning(State1, ?WARN_MATCHING,
- Tree, Msg),
- {State2, Map1, t_none()};
- false ->
- case bind_pat_vars(Elements, t_tuple_args(RecType),
- [], Map1, State1) of
- {error, bind, ErrorPat, ErrorType, _} ->
- Msg = {record_constr,
- [TagVal, format_patterns(ErrorPat),
- format_type(ErrorType, State1)]},
- State2 = state__add_warning(State1, ?WARN_MATCHING,
- Tree, Msg),
- {State2, Map1, t_none()};
- {Map2, ETypes} ->
- {State1, Map2, t_tuple(ETypes)}
- end
- end
- end
+ case state__lookup_record(TagVal, length(Left), State1) of
+ error -> {State1, Map1, TupleType};
+ {ok, RecType} ->
+ InfTupleType = t_inf(RecType, TupleType),
+ case t_is_none(InfTupleType) of
+ true ->
+ RecC = format_type(TupleType, State1),
+ FieldDiffs = format_field_diffs(TupleType, State1),
+ Msg = {record_constr, [RecC, FieldDiffs]},
+ State2 = state__add_warning(State1, ?WARN_MATCHING,
+ Tree, Msg),
+ {State2, Map1, t_none()};
+ false ->
+ case bind_pat_vars(Elements, t_tuple_args(RecType),
+ [], Map1, State1) of
+ {error, bind, ErrorPat, ErrorType, _} ->
+ Msg = {record_constr,
+ [TagVal, format_patterns(ErrorPat),
+ format_type(ErrorType, State1)]},
+ State2 = state__add_warning(State1, ?WARN_MATCHING,
+ Tree, Msg),
+ {State2, Map1, t_none()};
+ {error, opaque, ErrorPat, ErrorType, OpaqueType} ->
+ Msg = {opaque_match,
+ [format_patterns(ErrorPat),
+ format_type(ErrorType, State1),
+ format_type(OpaqueType, State1)]},
+ State2 = state__add_warning(State1, ?WARN_OPAQUE,
+ Tree, Msg),
+ {State2, Map1, t_none()};
+ {Map2, ETypes} ->
+ {State1, Map2, t_tuple(ETypes)}
+ end
+ end
end;
false ->
{State1, Map1, t_tuple(EsType)}
@@ -1356,7 +1378,9 @@ bind_pat_vars_reverse(Pats, Types, Acc, Map, State) ->
end.
bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
- ?debug("Binding pat: ~w to ~s\n", [cerl:type(Pat), format_type(Type, State)]),
+ ?debug("Binding pat: ~w to ~s\n", [cerl:type(Pat), format_type(Type, State)]
+),
+ Opaques = State#state.opaques,
{NewMap, TypeOut} =
case cerl:type(Pat) of
alias ->
@@ -1372,9 +1396,15 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
case Rev of
true -> {Map, t_bitstr()};
false ->
- BinType = t_inf(t_bitstr(), Type),
+ BinType = t_inf(t_bitstr(), Type, Opaques),
case t_is_none(BinType) of
- true -> bind_error([Pat], Type, t_none(), bind);
+ true ->
+ case t_find_opaque_mismatch(t_bitstr(), Type) of
+ {ok, T1, T2} ->
+ bind_error([Pat], T1, T2, opaque);
+ error ->
+ bind_error([Pat], Type, t_none(), bind)
+ end;
false ->
Segs = cerl:binary_segments(Pat),
{Map1, SegTypes} = bind_bin_segs(Segs, BinType, Map, State),
@@ -1382,28 +1412,24 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
end
end;
cons ->
- Cons = t_inf(Type, t_cons()),
+ Cons = t_inf(Type, t_cons(), Opaques),
case t_is_none(Cons) of
true ->
bind_opaque_pats(t_cons(), Type, Pat, Map, State, Rev);
false ->
{Map1, [HdType, TlType]} =
bind_pat_vars([cerl:cons_hd(Pat), cerl:cons_tl(Pat)],
- [t_cons_hd(Cons), t_cons_tl(Cons)],
+ [t_cons_hd(Cons, Opaques),
+ t_cons_tl(Cons, Opaques)],
[], Map, State, Rev),
{Map1, t_cons(HdType, TlType)}
end;
literal ->
Literal = literal_type(Pat),
- LiteralOrOpaque =
- case t_opaque_match_atom(Literal, State#state.opaques) of
- [Opaque] -> Opaque;
- _ -> Literal
- end,
- case t_is_none(t_inf(LiteralOrOpaque, Type)) of
+ case t_is_none(t_inf(Literal, Type, Opaques)) of
true ->
bind_opaque_pats(Literal, Type, Pat, Map, State, Rev);
- false -> {Map, LiteralOrOpaque}
+ false -> {Map, Literal}
end;
tuple ->
Es = cerl:tuple_es(Pat),
@@ -1419,27 +1445,28 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
{ok, Record} ->
[_Head|AnyTail] = [t_any() || _ <- Es],
UntypedRecord = t_tuple([t_atom(TagAtom)|AnyTail]),
- {not erl_types:t_is_equal(Record, UntypedRecord), Record}
+ {not t_is_equal(Record, UntypedRecord), Record}
end;
false -> {false, t_tuple(length(Es))}
end
end,
- Tuple = t_inf(Prototype, Type),
+ Tuple = t_inf(Prototype, Type, Opaques),
case t_is_none(Tuple) of
true ->
bind_opaque_pats(Prototype, Type, Pat, Map, State, Rev);
false ->
- SubTuples = t_tuple_subtypes(Tuple),
+ SubTuples = t_tuple_subtypes(Tuple, Opaques),
%% Need to call the top function to get the try-catch wrapper
MapJ = join_maps_begin(Map),
Results =
case Rev of
true ->
- [bind_pat_vars_reverse(Es, t_tuple_args(SubTuple), [],
- MapJ, State)
+ [bind_pat_vars_reverse(Es, t_tuple_args(SubTuple, Opaques),
+ [], MapJ, State)
|| SubTuple <- SubTuples];
false ->
- [bind_pat_vars(Es, t_tuple_args(SubTuple), [], MapJ, State)
+ [bind_pat_vars(Es, t_tuple_args(SubTuple, Opaques), [],
+ MapJ, State)
|| SubTuple <- SubTuples]
end,
case lists:keyfind(opaque, 2, Results) of
@@ -1466,37 +1493,14 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
bind_pat_vars(Es, t_to_tlist(Type), [], Map, State, Rev),
{Map1, t_product(EsTypes)};
var ->
- Opaques = State#state.opaques,
VarType1 =
case state__lookup_type_for_letrec(Pat, State) of
- error ->
- LType = lookup_type(Pat, Map),
- case t_opaque_match_record(LType, Opaques) of
- [Opaque] -> Opaque;
- _ ->
- case t_opaque_match_atom(LType, Opaques) of
- [Opaque] -> Opaque;
- _ -> LType
- end
- end;
+ error -> lookup_type(Pat, Map);
{ok, RecType} -> RecType
end,
%% Must do inf when binding args to pats. Vars in pats are fresh.
- VarType2 = t_inf(VarType1, Type),
- VarType3 =
- case Opaques =/= [] of
- true ->
- case t_opaque_match_record(VarType2, Opaques) of
- [OpaqueRec] -> OpaqueRec;
- _ ->
- case t_opaque_match_atom(VarType2, Opaques) of
- [OpaqueAtom] -> OpaqueAtom;
- _ -> VarType2
- end
- end;
- false -> VarType2
- end,
- case t_is_none(VarType3) of
+ VarType2 = t_inf(VarType1, Type, Opaques),
+ case t_is_none(VarType2) of
true ->
case t_find_opaque_mismatch(VarType1, Type) of
{ok, T1, T2} ->
@@ -1505,8 +1509,8 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
bind_error([Pat], Type, t_none(), bind)
end;
false ->
- Map1 = enter_type(Pat, VarType3, Map),
- {Map1, VarType3}
+ Map1 = enter_type(Pat, VarType2, Map),
+ {Map1, VarType2}
end;
_Other ->
%% Catch all is needed when binding args to pats
@@ -1529,7 +1533,8 @@ bind_bin_segs([Seg|Segs], BinType, Acc, Map, State) ->
binary = SegType, [] = Segs, %% just an assert
T = t_inf(t_bitstr(UnitVal, 0), BinType),
{Map1, [Type]} = bind_pat_vars([Val], [T], [], Map, State, false),
- bind_bin_segs(Segs, t_bitstr(0, 0), [Type|Acc], Map1, State);
+ Type1 = remove_local_opaque_types(Type, State#state.opaques),
+ bind_bin_segs(Segs, t_bitstr(0, 0), [Type1|Acc], Map1, State);
utf -> % XXX: possibly can be strengthened
true = lists:member(SegType, [utf8, utf16, utf32]),
{Map1, [_]} = bind_pat_vars([Val], [t_integer()], [], Map, State, false),
@@ -1539,11 +1544,17 @@ bind_bin_segs([Seg|Segs], BinType, Acc, Map, State) ->
Size = cerl:bitstr_size(Seg),
{Map1, [SizeType]} =
bind_pat_vars([Size], [t_non_neg_integer()], [], Map, State, false),
+ Opaques = State#state.opaques,
+ NumberVals = t_number_vals(SizeType, Opaques),
+ case t_contains_opaque(SizeType, Opaques) of
+ true -> bind_error([Seg], SizeType, t_none(), opaque);
+ false -> ok
+ end,
Type =
- case t_number_vals(SizeType) of
+ case NumberVals of
[OneSize] -> t_bitstr(0, UnitVal * OneSize);
- _ ->
- MinSize = erl_types:number_min(SizeType),
+ _ -> % 'unknown' too
+ MinSize = erl_types:number_min(SizeType, Opaques),
t_bitstr(UnitVal, UnitVal * MinSize)
end,
ValConstr =
@@ -1551,7 +1562,7 @@ bind_bin_segs([Seg|Segs], BinType, Acc, Map, State) ->
binary -> Type; %% The same constraints as for the whole bitstr
float -> t_float();
integer ->
- case t_number_vals(SizeType) of
+ case NumberVals of
unknown -> t_integer();
List ->
SizeVal = lists:max(List),
@@ -1579,7 +1590,7 @@ bind_error(Pats, Type, OpaqueType, Error) ->
bind_opaque_pats(GenType, Type, Pat, Map, State, Rev) ->
case t_find_opaque_mismatch(GenType, Type) of
{ok, T1, T2} ->
- case lists:member(T2, State#state.opaques) of
+ case erl_types:is_opaque_type(T2, State#state.opaques) of
true ->
NewType = erl_types:t_struct_from_opaque(Type, [T2]),
{Map1, _} =
@@ -1700,19 +1711,9 @@ handle_guard_call(Guard, Map, Env, Eval, State) ->
handle_guard_gen_fun({M, F, A}, Guard, Map, Env, Eval, State) ->
Args = cerl:call_args(Guard),
- {Map1, As0} = bind_guard_list(Args, Map, Env, dont_know, State),
- MapFun = fun(Type) ->
- case lists:member(Type, State#state.opaques) of
- true -> erl_types:t_opaque_structure(Type);
- false -> Type
- end
- end,
- As = lists:map(MapFun, As0),
- Mode = case As =:= As0 of
- true -> structured;
- false -> opaque
- end,
- BifRet = erl_bif_types:type(M, F, A, As),
+ {Map1, As} = bind_guard_list(Args, Map, Env, dont_know, State),
+ Opaques = State#state.opaques,
+ BifRet = erl_bif_types:type(M, F, A, As, Opaques),
case t_is_none(BifRet) of
true ->
%% Is this an error-bif?
@@ -1721,11 +1722,8 @@ handle_guard_gen_fun({M, F, A}, Guard, Map, Env, Eval, State) ->
false -> signal_guard_fatal_fail(Eval, Guard, As, State)
end;
false ->
- BifArgs = case erl_bif_types:arg_types(M, F, A) of
- unknown -> lists:duplicate(A, t_any());
- List -> List
- end,
- Map2 = enter_type_lists(Args, t_inf_lists(BifArgs, As0, Mode), Map1),
+ BifArgs = bif_args(M, F, A),
+ Map2 = enter_type_lists(Args, t_inf_lists(BifArgs, As, Opaques), Map1),
Ret =
case Eval of
pos -> t_inf(t_atom(true), BifRet);
@@ -1771,29 +1769,19 @@ bind_type_test(Eval, TypeTest, ArgType, State) ->
is_reference -> t_reference();
is_tuple -> t_tuple()
end,
- Mode = determine_mode(ArgType, State#state.opaques),
case Eval of
pos ->
- Inf = t_inf(Type, ArgType, Mode),
+ Inf = t_inf(Type, ArgType, State#state.opaques),
case t_is_none(Inf) of
true -> error;
false -> {ok, Inf, t_atom(true)}
end;
neg ->
- case Mode of
- opaque ->
- Struct = erl_types:t_opaque_structure(ArgType),
- case t_is_none(t_subtract(Struct, Type)) of
- true -> error;
- false -> {ok, ArgType, t_atom(false)}
- end;
- structured ->
- Sub = t_subtract(ArgType, Type),
- case t_is_none(Sub) of
- true -> error;
- false -> {ok, Sub, t_atom(false)}
- end
- end;
+ Sub = t_subtract(ArgType, Type),
+ case t_is_none(Sub) of
+ true -> error;
+ false -> {ok, Sub, t_atom(false)}
+ end;
dont_know ->
{ok, ArgType, t_boolean()}
end.
@@ -1802,9 +1790,10 @@ handle_guard_comp(Guard, Comp, Map, Env, Eval, State) ->
Args = cerl:call_args(Guard),
[Arg1, Arg2] = Args,
{Map1, ArgTypes} = bind_guard_list(Args, Map, Env, dont_know, State),
+ Opaques = State#state.opaques,
[Type1, Type2] = ArgTypes,
- IsInt1 = t_is_integer(Type1),
- IsInt2 = t_is_integer(Type2),
+ IsInt1 = t_is_integer(Type1, Opaques),
+ IsInt2 = t_is_integer(Type2, Opaques),
case {cerl:type(Arg1), cerl:type(Arg2)} of
{literal, literal} ->
case erlang:Comp(cerl:concrete(Arg1), cerl:concrete(Arg2)) of
@@ -1817,12 +1806,13 @@ handle_guard_comp(Guard, Comp, Map, Env, Eval, State) ->
false when Eval =:= neg -> {Map, t_atom(false)}
end;
{literal, var} when IsInt1 andalso IsInt2 andalso (Eval =:= pos) ->
- case bind_comp_literal_var(Arg1, Arg2, Type2, Comp, Map1) of
+ case bind_comp_literal_var(Arg1, Arg2, Type2, Comp, Map1, Opaques) of
error -> signal_guard_fail(Eval, Guard, ArgTypes, State);
{ok, NewMap} -> {NewMap, t_atom(true)}
end;
{var, literal} when IsInt1 andalso IsInt2 andalso (Eval =:= pos) ->
- case bind_comp_literal_var(Arg2, Arg1, Type1, invert_comp(Comp), Map1) of
+ case bind_comp_literal_var(Arg2, Arg1, Type1, invert_comp(Comp),
+ Map1, Opaques) of
error -> signal_guard_fail(Eval, Guard, ArgTypes, State);
{ok, NewMap} -> {NewMap, t_atom(true)}
end;
@@ -1835,10 +1825,10 @@ invert_comp('<') -> '>';
invert_comp('>=') -> '=<';
invert_comp('>') -> '<'.
-bind_comp_literal_var(Lit, Var, VarType, CompOp, Map) ->
+bind_comp_literal_var(Lit, Var, VarType, CompOp, Map, Opaques) ->
LitVal = cerl:concrete(Lit),
NewVarType =
- case t_number_vals(VarType) of
+ case t_number_vals(VarType, Opaques) of
unknown ->
Range =
case CompOp of
@@ -1847,7 +1837,7 @@ bind_comp_literal_var(Lit, Var, VarType, CompOp, Map) ->
'>=' -> t_from_range(neg_inf, LitVal);
'>' -> t_from_range(neg_inf, LitVal - 1)
end,
- t_inf(Range, VarType);
+ t_inf(Range, VarType, Opaques);
NumberVals ->
NewNumberVals = [X || X <- NumberVals, erlang:CompOp(LitVal, X)],
t_integers(NewNumberVals)
@@ -1861,17 +1851,18 @@ handle_guard_is_function(Guard, Map, Env, Eval, State) ->
Args = cerl:call_args(Guard),
{Map1, ArgTypes0} = bind_guard_list(Args, Map, Env, dont_know, State),
[FunType0, ArityType0] = ArgTypes0,
- ArityType = t_inf(ArityType0, t_integer()),
+ Opaques = State#state.opaques,
+ ArityType = t_inf(ArityType0, t_integer(), Opaques),
case t_is_none(ArityType) of
true -> signal_guard_fail(Eval, Guard, ArgTypes0, State);
false ->
FunTypeConstr =
- case t_number_vals(ArityType) of
+ case t_number_vals(ArityType, State#state.opaques) of
unknown -> t_fun();
Vals ->
t_sup([t_fun(lists:duplicate(X, t_any()), t_any()) || X <- Vals])
end,
- FunType = t_inf(FunType0, FunTypeConstr),
+ FunType = t_inf(FunType0, FunTypeConstr, Opaques),
case t_is_none(FunType) of
true ->
case Eval of
@@ -1896,33 +1887,45 @@ handle_guard_is_record(Guard, Map, Env, Eval, State) ->
Arity = cerl:int_val(Arity0),
{Map1, RecType} = bind_guard(Rec, Map, Env, dont_know, State),
ArityMin1 = Arity - 1,
- TupleType =
- case state__lookup_record(Tag, ArityMin1, State) of
- error -> t_tuple([t_atom(Tag)|lists:duplicate(ArityMin1, t_any())]);
- {ok, Prototype} -> Prototype
- end,
- Mode = determine_mode(RecType, State#state.opaques),
- NewTupleType =
- case t_opaque_match_record(TupleType, State#state.opaques) of
- [Opaque] -> Opaque;
- _ -> TupleType
- end,
- Type = t_inf(NewTupleType, RecType, Mode),
- case t_is_none(Type) of
+ Opaques = State#state.opaques,
+ Tuple = t_tuple([t_atom(Tag)|lists:duplicate(ArityMin1, t_any())]),
+ case t_is_none(t_inf(Tuple, RecType, Opaques)) of
true ->
- case Eval of
- pos -> signal_guard_fail(Eval, Guard,
- [RecType, t_from_term(Tag),
- t_from_term(Arity)],
- State);
- neg -> {Map1, t_atom(false)};
- dont_know -> {Map1, t_atom(false)}
+ case erl_types:t_has_opaque_subtype(RecType, Opaques) of
+ true ->
+ signal_guard_fail(Eval, Guard,
+ [RecType, t_from_term(Tag),
+ t_from_term(Arity)],
+ State);
+ false ->
+ case Eval of
+ pos -> signal_guard_fail(Eval, Guard,
+ [RecType, t_from_term(Tag),
+ t_from_term(Arity)],
+ State);
+ neg -> {Map1, t_atom(false)};
+ dont_know -> {Map1, t_atom(false)}
+ end
end;
false ->
- case Eval of
- pos -> {enter_type(Rec, Type, Map1), t_atom(true)};
- neg -> {Map1, t_atom(false)};
- dont_know -> {Map1, t_boolean()}
+ TupleType =
+ case state__lookup_record(Tag, ArityMin1, State) of
+ error -> Tuple;
+ {ok, Prototype} -> Prototype
+ end,
+ Type = t_inf(TupleType, RecType, State#state.opaques),
+ case t_is_none(Type) of
+ true ->
+ %% No special handling of opaque errors.
+ FArgs = "record " ++ format_type(RecType, State),
+ Msg = {record_matching, [FArgs, Tag]},
+ throw({fail, {Guard, Msg}});
+ false ->
+ case Eval of
+ pos -> {enter_type(Rec, Type, Map1), t_atom(true)};
+ neg -> {Map1, t_atom(false)};
+ dont_know -> {Map1, t_boolean()}
+ end
end
end.
@@ -1975,14 +1978,24 @@ handle_guard_eq(Guard, Map, Env, Eval, State) ->
bind_eq_guard(Guard, Arg1, Arg2, Map, Env, Eval, State) ->
{Map1, Type1} = bind_guard(Arg1, Map, Env, dont_know, State),
{Map2, Type2} = bind_guard(Arg2, Map1, Env, dont_know, State),
- case (t_is_nil(Type1) orelse t_is_nil(Type2) orelse
- t_is_atom(Type1) orelse t_is_atom(Type2)) of
+ Opaques = State#state.opaques,
+ case
+ t_is_nil(Type1, Opaques) orelse t_is_nil(Type2, Opaques)
+ orelse t_is_atom(Type1, Opaques) orelse t_is_atom(Type2, Opaques)
+ of
true -> bind_eqeq_guard(Guard, Arg1, Arg2, Map, Env, Eval, State);
false ->
- case Eval of
- pos -> {Map2, t_atom(true)};
- neg -> {Map2, t_atom(false)};
- dont_know -> {Map2, t_boolean()}
+ %% XXX. Is this test OK?
+ OpArgs = erl_types:t_find_unknown_opaque(Type1, Type2, Opaques),
+ case OpArgs =:= [] of
+ true ->
+ case Eval of
+ pos -> {Map2, t_atom(true)};
+ neg -> {Map2, t_atom(false)};
+ dont_know -> {Map2, t_boolean()}
+ end;
+ false ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State)
end
end.
@@ -2021,44 +2034,52 @@ bind_eqeq_guard(Guard, Arg1, Arg2, Map, Env, Eval, State) ->
{Map2, Type2} = bind_guard(Arg2, Map1, Env, dont_know, State),
?debug("Types are:~s =:= ~s\n", [t_to_string(Type1),
t_to_string(Type2)]),
- Inf = t_inf(Type1, Type2),
+ Opaques = State#state.opaques,
+ Inf = t_inf(Type1, Type2, Opaques),
case t_is_none(Inf) of
true ->
- case Eval of
- neg -> {Map2, t_atom(false)};
- dont_know -> {Map2, t_atom(false)};
- pos -> signal_guard_fail(Eval, Guard, [Type1, Type2], State)
+ OpArgs = erl_types:t_find_unknown_opaque(Type1, Type2, Opaques),
+ case OpArgs =:= [] of
+ true ->
+ case Eval of
+ neg -> {Map2, t_atom(false)};
+ dont_know -> {Map2, t_atom(false)};
+ pos -> signal_guard_fail(Eval, Guard, [Type1, Type2], State)
+ end;
+ false ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State)
end;
false ->
case Eval of
- pos ->
- case {cerl:type(Arg1), cerl:type(Arg2)} of
- {var, var} ->
- Map3 = enter_subst(Arg1, Arg2, Map2),
- Map4 = enter_type(Arg2, Inf, Map3),
- {Map4, t_atom(true)};
- {var, _} ->
- Map3 = enter_type(Arg1, Inf, Map2),
- {Map3, t_atom(true)};
- {_, var} ->
- Map3 = enter_type(Arg2, Inf, Map2),
- {Map3, t_atom(true)};
- {_, _} ->
- {Map2, t_atom(true)}
- end;
- neg ->
- {Map2, t_atom(false)};
- dont_know ->
- {Map2, t_boolean()}
+ pos ->
+ case {cerl:type(Arg1), cerl:type(Arg2)} of
+ {var, var} ->
+ Map3 = enter_subst(Arg1, Arg2, Map2),
+ Map4 = enter_type(Arg2, Inf, Map3),
+ {Map4, t_atom(true)};
+ {var, _} ->
+ Map3 = enter_type(Arg1, Inf, Map2),
+ {Map3, t_atom(true)};
+ {_, var} ->
+ Map3 = enter_type(Arg2, Inf, Map2),
+ {Map3, t_atom(true)};
+ {_, _} ->
+ {Map2, t_atom(true)}
+ end;
+ neg ->
+ {Map2, t_atom(false)};
+ dont_know ->
+ {Map2, t_boolean()}
end
end.
bind_eqeq_guard_lit_other(Guard, Arg1, Arg2, Map, Env, State) ->
Eval = dont_know,
+ Opaques = State#state.opaques,
case cerl:concrete(Arg1) of
true ->
{_, Type} = MT = bind_guard(Arg2, Map, Env, pos, State),
- case t_is_atom(true, Type) of
+ case t_is_any_atom(true, Type, Opaques) of
true -> MT;
false ->
{_, Type0} = bind_guard(Arg2, Map, Env, Eval, State),
@@ -2066,7 +2087,7 @@ bind_eqeq_guard_lit_other(Guard, Arg1, Arg2, Map, Env, State) ->
end;
false ->
{Map1, Type} = bind_guard(Arg2, Map, Env, neg, State),
- case t_is_atom(false, Type) of
+ case t_is_any_atom(false, Type, Opaques) of
true -> {Map1, t_atom(true)};
false ->
{_, Type0} = bind_guard(Arg2, Map, Env, Eval, State),
@@ -2087,14 +2108,15 @@ bind_eqeq_guard_lit_other(Guard, Arg1, Arg2, Map, Env, State) ->
handle_guard_and(Guard, Map, Env, Eval, State) ->
[Arg1, Arg2] = cerl:call_args(Guard),
+ Opaques = State#state.opaques,
case Eval of
pos ->
{Map1, Type1} = bind_guard(Arg1, Map, Env, Eval, State),
- case t_is_atom(true, Type1) of
+ case t_is_any_atom(true, Type1, Opaques) of
false -> signal_guard_fail(Eval, Guard, [Type1, t_any()], State);
true ->
{Map2, Type2} = bind_guard(Arg2, Map1, Env, Eval, State),
- case t_is_atom(true, Type2) of
+ case t_is_any_atom(true, Type2, Opaques) of
false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State);
true -> {Map2, t_atom(true)}
end
@@ -2109,7 +2131,10 @@ handle_guard_and(Guard, Map, Env, Eval, State) ->
try bind_guard(Arg2, MapJ, Env, neg, State)
catch throw:{fail, _} -> bind_guard(Arg1, MapJ, Env, pos, State)
end,
- case t_is_atom(false, Type1) orelse t_is_atom(false, Type2) of
+ case
+ t_is_any_atom(false, Type1, Opaques)
+ orelse t_is_any_atom(false, Type2, Opaques)
+ of
true -> {join_maps_end([Map1, Map2], MapJ), t_atom(false)};
false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State)
end;
@@ -2124,11 +2149,16 @@ handle_guard_and(Guard, Map, Env, Eval, State) ->
false ->
NewMap = join_maps_end([Map1, Map2], MapJ),
NewType =
- case {t_atom_vals(Bool1), t_atom_vals(Bool2)} of
+ case {t_atom_vals(Bool1, Opaques), t_atom_vals(Bool2, Opaques)} of
{['true'] , ['true'] } -> t_atom(true);
{['false'], _ } -> t_atom(false);
{_ , ['false']} -> t_atom(false);
+ {unknown , _ } ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State);
+ {_ , unknown } ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State);
{_ , _ } -> t_boolean()
+
end,
{NewMap, NewType}
end
@@ -2136,6 +2166,7 @@ handle_guard_and(Guard, Map, Env, Eval, State) ->
handle_guard_or(Guard, Map, Env, Eval, State) ->
[Arg1, Arg2] = cerl:call_args(Guard),
+ Opaques = State#state.opaques,
case Eval of
pos ->
MapJ = join_maps_begin(Map),
@@ -2149,19 +2180,23 @@ handle_guard_or(Guard, Map, Env, Eval, State) ->
catch
throw:{fail,_} -> bind_guard(Arg2, MapJ, Env, dont_know, State)
end,
- case ((t_is_atom(true, Bool1) andalso t_is_boolean(Bool2))
- orelse
- (t_is_atom(true, Bool2) andalso t_is_boolean(Bool1))) of
+ case
+ ((t_is_any_atom(true, Bool1, Opaques)
+ andalso t_is_boolean(Bool2, Opaques))
+ orelse
+ (t_is_any_atom(true, Bool2, Opaques)
+ andalso t_is_boolean(Bool1, Opaques)))
+ of
true -> {join_maps_end([Map1, Map2], MapJ), t_atom(true)};
false -> signal_guard_fail(Eval, Guard, [Bool1, Bool2], State)
end;
neg ->
{Map1, Type1} = bind_guard(Arg1, Map, Env, neg, State),
- case t_is_atom(false, Type1) of
+ case t_is_any_atom(false, Type1, Opaques) of
false -> signal_guard_fail(Eval, Guard, [Type1, t_any()], State);
true ->
{Map2, Type2} = bind_guard(Arg2, Map1, Env, neg, State),
- case t_is_atom(false, Type2) of
+ case t_is_any_atom(false, Type2, Opaques) of
false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State);
true -> {Map2, t_atom(false)}
end
@@ -2177,10 +2212,14 @@ handle_guard_or(Guard, Map, Env, Eval, State) ->
false ->
NewMap = join_maps_end([Map1, Map2], MapJ),
NewType =
- case {t_atom_vals(Bool1), t_atom_vals(Bool2)} of
+ case {t_atom_vals(Bool1, Opaques), t_atom_vals(Bool2, Opaques)} of
{['false'], ['false']} -> t_atom(false);
{['true'] , _ } -> t_atom(true);
{_ , ['true'] } -> t_atom(true);
+ {unknown , _ } ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State);
+ {_ , unknown } ->
+ signal_guard_fail(Eval, Guard, [Type1, Type2], State);
{_ , _ } -> t_boolean()
end,
{NewMap, NewType}
@@ -2189,10 +2228,11 @@ handle_guard_or(Guard, Map, Env, Eval, State) ->
handle_guard_not(Guard, Map, Env, Eval, State) ->
[Arg] = cerl:call_args(Guard),
+ Opaques = State#state.opaques,
case Eval of
neg ->
{Map1, Type} = bind_guard(Arg, Map, Env, pos, State),
- case t_is_atom(true, Type) of
+ case t_is_any_atom(true, Type, Opaques) of
true -> {Map1, t_atom(false)};
false ->
{_, Type0} = bind_guard(Arg, Map, Env, Eval, State),
@@ -2200,7 +2240,7 @@ handle_guard_not(Guard, Map, Env, Eval, State) ->
end;
pos ->
{Map1, Type} = bind_guard(Arg, Map, Env, neg, State),
- case t_is_atom(false, Type) of
+ case t_is_any_atom(false, Type, Opaques) of
true -> {Map1, t_atom(true)};
false ->
{_, Type0} = bind_guard(Arg, Map, Env, Eval, State),
@@ -2212,10 +2252,11 @@ handle_guard_not(Guard, Map, Env, Eval, State) ->
case t_is_none(Bool) of
true -> throw({fatal_fail, none});
false ->
- case t_atom_vals(Bool) of
+ case t_atom_vals(Bool, Opaques) of
['true'] -> {Map1, t_atom(false)};
['false'] -> {Map1, t_atom(true)};
- [_, _] -> {Map1, Bool}
+ [_, _] -> {Map1, Bool};
+ unknown -> signal_guard_fail(Eval, Guard, [Type], State)
end
end
end.
@@ -2235,27 +2276,40 @@ bind_guard_list([], Map, _Env, _Eval, _State, Acc) ->
state()) -> no_return().
signal_guard_fail(Eval, Guard, ArgTypes, State) ->
+ signal_guard_failure(Eval, Guard, ArgTypes, fail, State).
+
+signal_guard_fatal_fail(Eval, Guard, ArgTypes, State) ->
+ signal_guard_failure(Eval, Guard, ArgTypes, fatal_fail, State).
+
+signal_guard_failure(Eval, Guard, ArgTypes, Tag, State) ->
Args = cerl:call_args(Guard),
F = cerl:atom_val(cerl:call_name(Guard)),
- MFA = {cerl:atom_val(cerl:call_module(Guard)), F, length(Args)},
- Msg =
+ {M, F, A} = MFA = {cerl:atom_val(cerl:call_module(Guard)), F, length(Args)},
+ Opaques = State#state.opaques,
+ {Kind, XInfo} =
+ case erl_bif_types:opaque_args(M, F, A, ArgTypes, Opaques) of
+ [] ->
+ {case Eval of
+ neg -> neg_guard_fail;
+ pos -> guard_fail;
+ dont_know -> guard_fail
+ end,
+ []};
+ Ns -> {opaque_guard, [Ns]}
+ end,
+ FArgs =
case is_infix_op(MFA) of
true ->
[ArgType1, ArgType2] = ArgTypes,
[Arg1, Arg2] = Args,
- Kind =
- case Eval of
- neg -> neg_guard_fail;
- pos -> guard_fail;
- dont_know -> guard_fail
- end,
- {Kind, [format_args_1([Arg1], [ArgType1], State),
- atom_to_list(F),
- format_args_1([Arg2], [ArgType2], State)]};
+ [format_args_1([Arg1], [ArgType1], State),
+ atom_to_list(F),
+ format_args_1([Arg2], [ArgType2], State)] ++ XInfo;
false ->
- mk_guard_msg(Eval, F, Args, ArgTypes, State)
+ [F, format_args(Args, ArgTypes, State)]
end,
- throw({fail, {Guard, Msg}}).
+ Msg = {Kind, FArgs},
+ throw({Tag, {Guard, Msg}}).
is_infix_op({erlang, '=:=', 2}) -> true;
is_infix_op({erlang, '==', 2}) -> true;
@@ -2268,25 +2322,10 @@ is_infix_op({erlang, '>=', 2}) -> true;
is_infix_op({M, F, A}) when is_atom(M), is_atom(F),
is_integer(A), 0 =< A, A =< 255 -> false.
--spec signal_guard_fatal_fail(eval(), cerl:c_call(), [erl_types:erl_type()],
- state()) -> no_return().
-
-signal_guard_fatal_fail(Eval, Guard, ArgTypes, State) ->
- Args = cerl:call_args(Guard),
- F = cerl:atom_val(cerl:call_name(Guard)),
- Msg = mk_guard_msg(Eval, F, Args, ArgTypes, State),
- throw({fatal_fail, {Guard, Msg}}).
-
-mk_guard_msg(Eval, F, Args, ArgTypes, State) ->
- FArgs = [F, format_args(Args, ArgTypes, State)],
- case any_has_opaque_subtype(ArgTypes) of
- true -> {opaque_guard, FArgs};
- false ->
- case Eval of
- neg -> {neg_guard_fail, FArgs};
- pos -> {guard_fail, FArgs};
- dont_know -> {guard_fail, FArgs}
- end
+bif_args(M, F, A) ->
+ case erl_bif_types:arg_types(M, F, A) of
+ unknown -> lists:duplicate(A, t_any());
+ List -> List
end.
bind_guard_case_clauses(Arg, Clauses, Map0, Env, Eval, State) ->
@@ -2366,14 +2405,15 @@ bind_guard_case_clauses(GenArgType, GenMap, ArgExpr, [Clause|Left],
end,
{NewMap3, CType} = bind_guard(cerl:clause_body(Clause), NewMap2,
Env, Eval, State),
+ Opaques = State#state.opaques,
case Eval of
pos ->
- case t_is_atom(true, CType) of
+ case t_is_any_atom(true, CType, Opaques) of
true -> ok;
false -> throw({fail, none})
end;
neg ->
- case t_is_atom(false, CType) of
+ case t_is_any_atom(false, CType, Opaques) of
true -> ok;
false -> throw({fail, none})
end;
@@ -2501,8 +2541,11 @@ enter_type(Key, Val, MS) ->
error ->
?debug("Entering ~p :: ~s\n", [KeyLabel, t_to_string(Val)]),
case dict:find(KeyLabel, Dict) of
- {ok, Val} -> MS;
- {ok, _OldVal} -> store_map(KeyLabel, Val, MS);
+ {ok, Value} ->
+ case erl_types:t_is_equal(Val, Value) of
+ true -> MS;
+ false -> store_map(KeyLabel, Val, MS)
+ end;
error -> store_map(KeyLabel, Val, MS)
end
end
@@ -2611,10 +2654,15 @@ get_label(L) when is_integer(L) ->
get_label(T) ->
cerl_trees:get_label(T).
-t_is_simple(ArgType) ->
- t_is_atom(ArgType) orelse t_is_number(ArgType) orelse t_is_port(ArgType)
- orelse t_is_pid(ArgType) orelse t_is_reference(ArgType)
- orelse t_is_nil(ArgType).
+t_is_simple(ArgType, State) ->
+ Opaques = State#state.opaques,
+ t_is_atom(ArgType, Opaques) orelse t_is_number(ArgType, Opaques)
+ orelse t_is_port(ArgType, Opaques)
+ orelse t_is_pid(ArgType, Opaques) orelse t_is_reference(ArgType, Opaques)
+ orelse t_is_nil(ArgType, Opaques).
+
+remove_local_opaque_types(Type, Opaques) ->
+ t_unopaque(Type, Opaques).
%% t_is_structured(ArgType) ->
%% case t_is_nil(ArgType) of
@@ -2638,12 +2686,6 @@ is_call_to_send(Tree) ->
andalso (Arity =:= 2)
end.
-any_opaque(Ts) ->
- lists:any(fun erl_types:t_is_opaque/1, Ts).
-
-any_has_opaque_subtype(Ts) ->
- lists:any(fun erl_types:t_has_opaque_subtype/1, Ts).
-
filter_match_fail([Clause] = Cls) ->
Body = cerl:clause_body(Clause),
case cerl:type(Body) of
@@ -2662,12 +2704,6 @@ filter_match_fail([]) ->
%% receive after 1 -> ok end
[].
-determine_mode(Type, Opaques) ->
- case lists:member(Type, Opaques) of
- true -> opaque;
- false -> structured
- end.
-
%%% ===========================================================================
%%%
%%% The State.
@@ -2679,7 +2715,7 @@ state__new(Callgraph, Tree, Plt, Module, Records) ->
erl_types:t_opaque_from_records(Records),
TreeMap = build_tree_map(Tree),
Funs = dict:fetch_keys(TreeMap),
- FunTab = init_fun_tab(Funs, dict:new(), TreeMap, Callgraph, Plt, Opaques),
+ FunTab = init_fun_tab(Funs, dict:new(), TreeMap, Callgraph, Plt),
ExportedFuns =
[Fun || Fun <- Funs--[top], dialyzer_callgraph:is_escaping(Fun, Callgraph)],
Work = init_work(ExportedFuns),
@@ -2740,12 +2776,14 @@ state__add_warning(#state{warnings = Warnings, warning_mode = true} = State,
case Force of
true ->
Warn = {Tag, {get_file(Ann), abs(get_line(Ann))}, Msg},
+ ?debug("MSG ~s\n", [dialyzer:format_warning(Warn)]),
State#state{warnings = [Warn|Warnings]};
false ->
case is_compiler_generated(Ann) of
true -> State;
false ->
Warn = {Tag, {get_file(Ann), get_line(Ann)}, Msg},
+ ?debug("MSG ~s\n", [dialyzer:format_warning(Warn)]),
State#state{warnings = [Warn|Warnings]}
end
end.
@@ -2875,10 +2913,10 @@ build_tree_map(Tree) ->
end,
cerl_trees:fold(Fun, dict:new(), Tree).
-init_fun_tab([top|Left], Dict, TreeMap, Callgraph, Plt, Opaques) ->
+init_fun_tab([top|Left], Dict, TreeMap, Callgraph, Plt) ->
NewDict = dict:store(top, {[], t_none()}, Dict),
- init_fun_tab(Left, NewDict, TreeMap, Callgraph, Plt, Opaques);
-init_fun_tab([Fun|Left], Dict, TreeMap, Callgraph, Plt, Opaques) ->
+ init_fun_tab(Left, NewDict, TreeMap, Callgraph, Plt);
+init_fun_tab([Fun|Left], Dict, TreeMap, Callgraph, Plt) ->
Arity = cerl:fun_arity(dict:fetch(Fun, TreeMap)),
FunEntry =
case dialyzer_callgraph:is_escaping(Fun, Callgraph) of
@@ -2895,8 +2933,8 @@ init_fun_tab([Fun|Left], Dict, TreeMap, Callgraph, Plt, Opaques) ->
false -> {not_handled, {lists:duplicate(Arity, t_none()), t_unit()}}
end,
NewDict = dict:store(Fun, FunEntry, Dict),
- init_fun_tab(Left, NewDict, TreeMap, Callgraph, Plt, Opaques);
-init_fun_tab([], Dict, _TreeMap, _Callgraph, _Plt, _Opaques) ->
+ init_fun_tab(Left, NewDict, TreeMap, Callgraph, Plt);
+init_fun_tab([], Dict, _TreeMap, _Callgraph, _Plt) ->
?debug("DICT:~p\n",[dict:to_list(Dict)]),
Dict.
@@ -2945,34 +2983,27 @@ state__update_fun_entry(Tree, ArgTypes, Out0,
if Fun =:= top -> Out0;
true ->
case lookup_fun_sig(Fun, CG, Plt) of
- {value, {SigRet, _}} -> t_inf(SigRet, Out0, opaque);
+ {value, {SigRet, _}} -> t_inf(SigRet, Out0);
none -> Out0
end
end,
Out = t_limit(Out1, ?TYPE_LIMIT),
- case dict:find(Fun, FunTab) of
- {ok, {ArgTypes, OldOut}} ->
- case t_is_equal(OldOut, Out) of
- true ->
- ?debug("Fixpoint for ~w: ~s\n",
- [state__lookup_name(Fun, State),
- t_to_string(t_fun(ArgTypes, Out))]),
- State;
- false ->
- NewEntry = {ArgTypes, Out},
- ?debug("New Entry for ~w: ~s\n",
- [state__lookup_name(Fun, State),
- t_to_string(t_fun(ArgTypes, Out))]),
- NewFunTab = dict:store(Fun, NewEntry, FunTab),
- State1 = State#state{fun_tab = NewFunTab},
- state__add_work_from_fun(Tree, State1)
- end;
- {ok, {NewArgTypes, _OldOut}} ->
- %% Can only happen in self-recursive functions. Only update the out type.
- NewEntry = {NewArgTypes, Out},
+ {ok, {OldArgTypes, OldOut}} = dict:find(Fun, FunTab),
+ SameArgs = lists:all(fun({A, B}) -> erl_types:t_is_equal(A, B)
+ end, lists:zip(OldArgTypes, ArgTypes)),
+ SameOut = t_is_equal(OldOut, Out),
+ if
+ SameArgs, SameOut ->
+ ?debug("Fixpoint for ~w: ~s\n",
+ [state__lookup_name(Fun, State),
+ t_to_string(t_fun(ArgTypes, Out))]),
+ State;
+ true ->
+ %% Can only happen in self-recursive functions.
+ NewEntry = {OldArgTypes, Out},
?debug("New Entry for ~w: ~s\n",
[state__lookup_name(Fun, State),
- t_to_string(t_fun(NewArgTypes, Out))]),
+ t_to_string(t_fun(OldArgTypes, Out))]),
NewFunTab = dict:store(Fun, NewEntry, FunTab),
State1 = State#state{fun_tab = NewFunTab},
state__add_work_from_fun(Tree, State1)
@@ -2993,7 +3024,7 @@ state__add_work_from_fun(Tree, #state{callgraph = Callgraph,
%% Must filter the result for results in this module.
FilteredList = [L || {ok, L} <- LabelList, dict:is_key(L, TreeMap)],
?debug("~w: Will try to add:~w\n",
- [state__lookup_name(get_label(Tree), State), MFAList]),
+ [state__lookup_name(Label, State), MFAList]),
lists:foldl(fun(L, AccState) ->
state__add_work(L, AccState)
end, State, FilteredList)
@@ -3054,7 +3085,8 @@ forward_args(Fun, ArgTypes, #state{work = Work, fun_tab = FunTab} = State) ->
case Fixpoint of
true -> State;
false ->
- NewArgTypes = [t_sup(X, Y) || {X, Y} <- lists:zip(ArgTypes, OldArgTypes)],
+ NewArgTypes = [t_sup(X, Y) ||
+ {X, Y} <- lists:zip(ArgTypes, OldArgTypes)],
NewWork = add_work(Fun, Work),
?debug("~w: forwarding args ~s\n",
[state__lookup_name(Fun, State),
@@ -3238,13 +3270,13 @@ format_field_diffs(RecConstruction, #state{records = R}) ->
-spec format_sig_args(erl_types:erl_type(), state()) -> string().
-format_sig_args(Type, #state{records = R}) ->
- SigArgs = t_fun_args(Type),
+format_sig_args(Type, #state{opaques = Opaques} = State) ->
+ SigArgs = t_fun_args(Type, Opaques),
case SigArgs of
[] -> "()";
[SArg|SArgs] ->
- lists:flatten("(" ++ t_to_string(SArg, R)
- ++ ["," ++ t_to_string(T, R) || T <- SArgs] ++ ")")
+ lists:flatten("(" ++ format_type(SArg, State)
+ ++ ["," ++ format_type(T, State) || T <- SArgs] ++ ")")
end.
format_cerl(Tree) ->
diff --git a/lib/dialyzer/src/dialyzer_succ_typings.erl b/lib/dialyzer/src/dialyzer_succ_typings.erl
index 84379642bf..f0488b5ee3 100644
--- a/lib/dialyzer/src/dialyzer_succ_typings.erl
+++ b/lib/dialyzer/src/dialyzer_succ_typings.erl
@@ -2,7 +2,7 @@
%%-----------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -149,8 +149,10 @@ get_warnings(Callgraph, Plt, DocPlt, Codeserver,
NewState = InitState#st{no_warn_unused = NoWarnUnused},
Mods = dialyzer_callgraph:modules(NewState#st.callgraph),
MiniPlt = NewState#st.plt,
+ FindOpaques = lookup_and_find_opaques_fun(Codeserver),
CWarns =
- dialyzer_contracts:get_invalid_contract_warnings(Mods, Codeserver, MiniPlt),
+ dialyzer_contracts:get_invalid_contract_warnings(Mods, Codeserver,
+ MiniPlt, FindOpaques),
MiniDocPlt = dialyzer_plt:get_mini_plt(DocPlt),
ModWarns =
?timing(TimingServer, "warning",
@@ -261,7 +263,16 @@ refine_one_module(M, {CodeServer, Callgraph, Plt, _Solvers}) ->
FunTypes = get_fun_types_from_plt(AllFuns, Callgraph, Plt),
NewFunTypes =
dialyzer_dataflow:get_fun_types(ModCode, Plt, Callgraph, Records),
- case reached_fixpoint(FunTypes, NewFunTypes) of
+ Contracts1 = dialyzer_codeserver:lookup_mod_contracts(M, CodeServer),
+ Contracts = orddict:from_list(dict:to_list(Contracts1)),
+ FindOpaques = find_opaques_fun(Records),
+ DecoratedFunTypes =
+ decorate_succ_typings(Contracts, Callgraph, NewFunTypes, FindOpaques),
+ %% ?debug("NewFunTypes ~p\n ~n", [dict:to_list(NewFunTypes)]),
+ %% ?debug("refine DecoratedFunTypes ~p\n ~n", [dict:to_list(DecoratedFunTypes)]),
+ debug_pp_functions("Refine", NewFunTypes, DecoratedFunTypes, Callgraph),
+
+ case reached_fixpoint(FunTypes, DecoratedFunTypes) of
true -> [];
{false, NotFixpoint} ->
?debug("Not fixpoint\n", []),
@@ -357,9 +368,16 @@ find_succ_types_for_scc(SCC, {Codeserver, Callgraph, Plt, Solvers}) ->
AllFunSet = sets:from_list([X || {X, _} <- AllFuns]),
FilteredFunTypes =
dict:filter(fun(X, _) -> sets:is_element(X, AllFunSet) end, FunTypes),
+ FindOpaques = lookup_and_find_opaques_fun(Codeserver),
+ DecoratedFunTypes =
+ decorate_succ_typings(Contracts3, Callgraph, FilteredFunTypes, FindOpaques),
%% Check contracts
PltContracts =
- dialyzer_contracts:check_contracts(Contracts3, Callgraph, FilteredFunTypes),
+ dialyzer_contracts:check_contracts(Contracts3, Callgraph,
+ DecoratedFunTypes, FindOpaques),
+ %% ?debug("FilteredFunTypes ~p\n ~n", [dict:to_list(FilteredFunTypes)]),
+ %% ?debug("SCC DecoratedFunTypes ~p\n ~n", [dict:to_list(DecoratedFunTypes)]),
+ debug_pp_functions("SCC", FilteredFunTypes, DecoratedFunTypes, Callgraph),
ContractFixpoint =
lists:all(fun({MFA, _C}) ->
%% Check the non-deleted PLT
@@ -368,16 +386,47 @@ find_succ_types_for_scc(SCC, {Codeserver, Callgraph, Plt, Solvers}) ->
{value, _} -> true
end
end, PltContracts),
- Plt = insert_into_plt(FilteredFunTypes, Callgraph, Plt),
+ Plt = insert_into_plt(DecoratedFunTypes, Callgraph, Plt),
Plt = dialyzer_plt:insert_contract_list(Plt, PltContracts),
case (ContractFixpoint andalso
- reached_fixpoint_strict(PropTypes, FilteredFunTypes)) of
+ reached_fixpoint_strict(PropTypes, DecoratedFunTypes)) of
true -> [];
false ->
?debug("Not fixpoint for: ~w\n", [AllFuns]),
[Fun || {Fun, _Arity} <- AllFuns]
end.
+decorate_succ_typings(Contracts, Callgraph, FunTypes, FindOpaques) ->
+ F = fun(Label, Type) ->
+ case dialyzer_callgraph:lookup_name(Label, Callgraph) of
+ {ok, MFA} ->
+ case orddict:find(MFA, Contracts) of
+ {ok, {_FileLine, Contract}} ->
+ Args = dialyzer_contracts:get_contract_args(Contract),
+ Ret = dialyzer_contracts:get_contract_return(Contract),
+ C = erl_types:t_fun(Args, Ret),
+ {M, _, _} = MFA,
+ Opaques = FindOpaques(M),
+ erl_types:t_decorate_with_opaque(Type, C, Opaques);
+ error -> Type
+ end;
+ error -> Type
+ end
+ end,
+ dict:map(F, FunTypes).
+
+lookup_and_find_opaques_fun(Codeserver) ->
+ fun(Module) ->
+ Records = dialyzer_codeserver:lookup_mod_records(Module, Codeserver),
+ (find_opaques_fun(Records))(Module)
+ end.
+
+find_opaques_fun(Records) ->
+ fun(Module) ->
+ erl_types:module_builtin_opaques(Module) ++
+ erl_types:t_opaque_from_records(Records)
+ end.
+
get_fun_types_from_plt(FunList, Callgraph, Plt) ->
get_fun_types_from_plt(FunList, Callgraph, Plt, dict:new()).
@@ -443,9 +492,30 @@ debug_pp_succ_typings(SuccTypes) ->
|| {MFA, {contract, RetFun, ArgT}} <- SuccTypes],
?debug("\n", []),
ok.
+
+debug_pp_functions(Header, FunTypes, DecoratedFunTypes, Callgraph) ->
+ ?debug("FunTypes (~s)\n", [Header]),
+ FTypes = lists:keysort(1, dict:to_list(FunTypes)),
+ DTypes = lists:keysort(1, dict:to_list(DecoratedFunTypes)),
+ Fun = fun({{Label, Type},{Label, DecoratedType}}) ->
+ Name = lookup_name(Label, Callgraph),
+ ?debug("~w (~w): ~s\n",
+ [Name, Label, erl_types:t_to_string(Type)]),
+ case erl_types:t_is_equal(Type, DecoratedType) of
+ true -> ok;
+ false ->
+ ?debug(" With opaque types: ~s\n",
+ [erl_types:t_to_string(DecoratedType)])
+ end
+ end,
+ lists:foreach(Fun, lists:zip(FTypes, DTypes)),
+ ?debug("\n", []).
-else.
debug_pp_succ_typings(_) ->
ok.
+
+debug_pp_functions(_, _, _, _) ->
+ ok.
-endif.
lookup_name(F, CG) ->
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl
index a418a11e65..db7875704a 100644
--- a/lib/dialyzer/src/dialyzer_typesig.erl
+++ b/lib/dialyzer/src/dialyzer_typesig.erl
@@ -2,7 +2,7 @@
%%-----------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -31,28 +31,30 @@
-export([analyze_scc/6]).
-export([get_safe_underapprox/2]).
+%%-import(helper, %% 'helper' could be any module doing sanity checks...
+-import(erl_types,
+ [t_has_var/1, t_inf/2, t_is_equal/2, t_is_subtype/2,
+ t_subtract/2, t_subtract_list/2, t_sup/1, t_sup/2,t_unify/2]).
+
-import(erl_types,
[t_any/0, t_atom/0, t_atom_vals/1,
t_binary/0, t_bitstr/0, t_bitstr/2, t_bitstr_concat/1, t_boolean/0,
t_collect_vars/1, t_cons/2, t_cons_hd/1, t_cons_tl/1,
t_float/0, t_from_range/2, t_from_term/1,
t_fun/0, t_fun/2, t_fun_args/1, t_fun_range/1,
- t_has_var/1,
- t_inf/2, t_inf/3, t_integer/0,
- t_is_any/1, t_is_atom/1, t_is_atom/2, t_is_cons/1, t_is_equal/2,
+ t_integer/0,
+ t_is_any/1, t_is_atom/1, t_is_any_atom/2, t_is_cons/1,
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_subtype/2, t_limit/2, t_list/0, t_list/1,
+ t_limit/2, t_list/0, t_list/1,
t_list_elements/1, t_nonempty_list/1, t_maybe_improper_list/0,
t_module/0, t_number/0, t_number_vals/1,
- t_opaque_match_record/2, t_opaque_matching_structure/2,
- t_opaque_from_records/1,
t_pid/0, t_port/0, t_product/1, t_reference/0,
- t_subst/2, t_subtract/2, t_subtract_list/2, t_sup/1, t_sup/2,
+ t_subst/2,
t_timeout/0, t_tuple/0, t_tuple/1,
- t_unify/3, t_var/1, t_var_name/1,
+ t_var/1, t_var_name/1,
t_none/0, t_unit/0]).
-include("dialyzer.hrl").
@@ -105,11 +107,10 @@
module :: module(),
name_map = dict:new() :: dict(),
next_label = 0 :: label(),
- self_rec :: erl_types:erl_type(),
+ self_rec :: 'false' | erl_types:erl_type(),
plt :: dialyzer_plt:plt(),
prop_types = {'d', dict:new()} :: dict_or_ets(),
records = dict:new() :: dict(),
- opaques = [] :: [erl_types:erl_type()],
scc = [] :: [type_var()],
mfas :: [tuple()],
solvers = [] :: [solver()]
@@ -192,11 +193,10 @@ solvers(Solvers) -> Solvers.
%%
%% ============================================================================
-traverse_scc([{MFA, Def, Rec}|Left], DefSet, AccState) ->
+traverse_scc([{_MFA, Def, Rec}|Left], DefSet, AccState) ->
TmpState1 = state__set_rec_dict(AccState, Rec),
- TmpState2 = state__set_opaques(TmpState1, MFA),
DummyLetrec = cerl:c_letrec([Def], cerl:c_atom(foo)),
- {NewAccState, _} = traverse(DummyLetrec, DefSet, TmpState2),
+ {NewAccState, _} = traverse(DummyLetrec, DefSet, TmpState1),
traverse_scc(Left, DefSet, NewAccState);
traverse_scc([], _DefSet, AccState) ->
AccState.
@@ -386,12 +386,7 @@ traverse(Tree, DefinedVars, State) ->
case cerl:unfold_literal(Tree) of
Tree ->
Type = t_from_term(cerl:concrete(Tree)),
- NewType =
- case erl_types:t_opaque_match_atom(Type, State#state.opaques) of
- [Opaque] -> Opaque;
- _ -> Type
- end,
- {State, NewType};
+ {State, Type};
NewTree -> traverse(NewTree, DefinedVars, State)
end;
module ->
@@ -462,25 +457,17 @@ traverse(Tree, DefinedVars, State) ->
[Tag|Fields] ->
case cerl:is_c_atom(Tag) of
true ->
- %% Check if an opaque term is constructed.
- case t_opaque_match_record(TupleType, State#state.opaques) of
- [Opaque] ->
- OpStruct = t_opaque_matching_structure(TupleType, Opaque),
- State3 = state__store_conj(TupleType, sub, OpStruct, State2),
- {State3, Opaque};
- %% 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}
- end
- end;
+ %% 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}
+ end;
false -> {State2, TupleType}
- end;
+ end;
[] -> {State2, TupleType}
end;
values ->
@@ -591,9 +578,13 @@ handle_try(Tree, DefinedVars, State) ->
case state__is_in_guard(State) of
true ->
Conj1 = mk_conj_constraint_list([ArgBodyCs,
- mk_constraint(BodyVar, eq, TreeVar)]),
+ mk_constraint(BodyVar,
+ eq,
+ TreeVar)]),
Disj = mk_disj_constraint_list([Conj1,
- mk_constraint(HandlerVar, eq, TreeVar)]),
+ mk_constraint(HandlerVar,
+ eq,
+ TreeVar)]),
NewState1 = state__new_constraint_context(HandlerState),
Conj2 = mk_conj_constraint_list([OldCs, Disj]),
NewState2 = state__store_conj(Conj2, NewState1),
@@ -604,19 +595,27 @@ handle_try(Tree, DefinedVars, State) ->
{false, false} ->
Conj1 =
mk_conj_constraint_list([ArgBodyCs,
- mk_constraint(TreeVar, eq, BodyVar)]),
+ mk_constraint(TreeVar,
+ eq,
+ BodyVar)]),
Conj2 =
mk_conj_constraint_list([HandlerCs,
- mk_constraint(TreeVar, eq, HandlerVar)]),
+ mk_constraint(TreeVar,
+ eq,
+ HandlerVar)]),
Disj = mk_disj_constraint_list([Conj1, Conj2]),
{Disj, TreeVar};
{false, true} ->
{mk_conj_constraint_list([ArgBodyCs,
- mk_constraint(TreeVar, eq, BodyVar)]),
+ mk_constraint(TreeVar,
+ eq,
+ BodyVar)]),
BodyVar};
{true, false} ->
{mk_conj_constraint_list([HandlerCs,
- mk_constraint(TreeVar, eq, HandlerVar)]),
+ mk_constraint(TreeVar,
+ eq,
+ HandlerVar)]),
HandlerVar};
{true, true} ->
?debug("Throw failed\n", []),
@@ -668,10 +667,7 @@ handle_call(Call, DefinedVars, State) ->
get_plt_constr(MFA, Dst, ArgVars, State) ->
Plt = state__plt(State),
PltRes = dialyzer_plt:lookup(Plt, MFA),
- Opaques = State#state.opaques,
- Module = State#state.module,
SCCMFAs = State#state.mfas,
- {FunModule, _, _} = MFA,
Contract =
case lists:member(MFA, SCCMFAs) of
true -> none;
@@ -691,28 +687,24 @@ get_plt_constr(MFA, Dst, ArgVars, State) ->
none ->
{?mk_fun_var(fun(Map) ->
ArgTypes = lookup_type_list(ArgVars, Map),
- dialyzer_contracts:get_contract_return(C, ArgTypes)
+ 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)
+ ArgTypes = lookup_type_list(ArgVars, Map),
+ CRet = get_contract_return(C, ArgTypes),
+ t_inf(CRet, PltRetType)
end, ArgVars),
- [t_inf(X, Y, opaque) || {X, Y} <- lists:zip(GenArgs, PltArgTypes)]}
+ [t_inf(X, Y) || {X, Y} <- lists:zip(GenArgs, PltArgTypes)]}
end,
state__store_conj_lists([Dst|ArgVars], sub, [RetType|ArgCs], State)
end.
+get_contract_return(C, ArgTypes) ->
+ dialyzer_contracts:get_contract_return(C, ArgTypes).
+
filter_match_fail([Clause] = Cls) ->
Body = cerl:clause_body(Clause),
case cerl:type(Body) of
@@ -1086,7 +1078,7 @@ 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)
+ bif_return(erlang, Op, 2, TmpArgTypes)
end, Args),
ArgFun =
fun(A, Pos) ->
@@ -1128,8 +1120,8 @@ get_bif_constr({erlang, Op, 2}, Dst, [Arg1, Arg2] = Args, _State)
fun(LocalArg1, LocalArg2, LocalOp) ->
fun(Map) ->
DstType = lookup_type(Dst, Map),
- IsTrue = t_is_atom(true, DstType),
- IsFalse = t_is_atom(false, DstType),
+ IsTrue = t_is_any_atom(true, DstType),
+ IsFalse = t_is_any_atom(false, DstType),
case IsTrue orelse IsFalse of
true ->
Arg1Type = lookup_type(LocalArg1, Map),
@@ -1176,7 +1168,7 @@ get_bif_constr({erlang, Op, 2}, Dst, [Arg1, Arg2] = Args, _State)
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)
+ bif_return(erlang, Op, 2, TmpArgTypes)
end, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstVar),
mk_constraint(Arg1, sub, Arg1Var),
@@ -1218,7 +1210,7 @@ get_bif_constr({erlang, '++', 2}, Dst, [Hd, Tl] = Args, _State) ->
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)
+ bif_return(erlang, '++', 2, TmpArgTypes)
end, Args),
Cs = mk_constraints(Args, sub, ArgTypes),
mk_conj_constraint_list([mk_constraint(Dst, sub, ReturnType),
@@ -1240,7 +1232,7 @@ get_bif_constr({erlang, is_function, 1}, Dst, [Arg], State) ->
get_bif_constr({erlang, is_function, 2}, Dst, [Fun, Arity], _State) ->
ArgFun = fun(Map) ->
DstType = lookup_type(Dst, Map),
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true ->
ArityType = lookup_type(Arity, Map),
case t_number_vals(ArityType) of
@@ -1268,7 +1260,7 @@ get_bif_constr({erlang, is_reference, 1}, Dst, [Arg], State) ->
get_bif_test_constr(Dst, Arg, t_reference(), State);
get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) ->
ArgFun = fun(Map) ->
- case t_is_atom(true, lookup_type(Dst, Map)) of
+ case t_is_any_atom(true, lookup_type(Dst, Map)) of
true -> t_tuple();
false -> t_any()
end
@@ -1276,7 +1268,7 @@ get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) ->
ArgV = ?mk_fun_var(ArgFun, [Dst]),
DstFun = fun(Map) ->
TmpArgTypes = lookup_type_list(Args, Map),
- erl_bif_types:type(erlang, is_record, 2, TmpArgTypes)
+ bif_return(erlang, is_record, 2, TmpArgTypes)
end,
DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
@@ -1285,10 +1277,9 @@ get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) ->
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,
- AllOpaques = State#state.opaques,
ArgFun =
fun(Map) ->
- case t_is_atom(true, lookup_type(Dst, Map)) of
+ case t_is_any_atom(true, lookup_type(Dst, Map)) of
true ->
ArityType = lookup_type(Arity, Map),
case t_is_integer(ArityType) of
@@ -1304,10 +1295,7 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) ->
[TagVal] ->
case lookup_record(Records, TagVal, ArityVal - 1) of
{ok, Type} ->
- case t_opaque_match_record(Type, AllOpaques) of
- [Opaque] -> Opaque;
- _ -> Type
- end;
+ Type;
error -> GenRecord
end;
_ -> GenRecord
@@ -1323,38 +1311,9 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) ->
end,
ArgV = ?mk_fun_var(ArgFun, [Tag, Arity, Dst]),
DstFun = fun(Map) ->
- [TmpVar, TmpTag, TmpArity] = TmpArgTypes = lookup_type_list(Args, Map),
- TmpArgTypes2 =
- case lists:member(TmpVar, AllOpaques) of
- true ->
- case t_is_integer(TmpArity) of
- true ->
- case t_number_vals(TmpArity) of
- [TmpArityVal] ->
- case t_is_atom(TmpTag) of
- true ->
- case t_atom_vals(TmpTag) of
- [TmpTagVal] ->
- case lookup_record(Records, TmpTagVal,
- TmpArityVal - 1) of
- {ok, TmpType} ->
- case t_is_none(t_inf(TmpType, TmpVar, opaque)) of
- true -> TmpArgTypes;
- false -> [TmpType, TmpTag, TmpArity]
- end;
- error -> TmpArgTypes
- end;
- _ -> TmpArgTypes
- end;
- false -> TmpArgTypes
- end;
- _ -> TmpArgTypes
- end;
- false -> TmpArgTypes
- end;
- false -> TmpArgTypes
- end,
- erl_bif_types:type(erlang, is_record, 3, TmpArgTypes2)
+ [TmpVar, TmpTag, TmpArity] = lookup_type_list(Args, Map),
+ TmpArgTypes = [TmpVar,TmpTag,TmpArity],
+ bif_return(erlang, is_record, 3, TmpArgTypes)
end,
DstV = ?mk_fun_var(DstFun, Args),
mk_conj_constraint_list([mk_constraint(Dst, sub, DstV),
@@ -1369,12 +1328,14 @@ get_bif_constr({erlang, 'and', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
ArgFun = fun(Var) ->
fun(Map) ->
DstType = lookup_type(Dst, Map),
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true -> True;
false ->
- case t_is_atom(false, DstType) of
+ case t_is_any_atom(false, DstType) of
true ->
- case t_is_atom(true, lookup_type(Var, Map)) of
+ case
+ t_is_any_atom(true, lookup_type(Var, Map))
+ of
true -> False;
false -> t_boolean()
end;
@@ -1386,15 +1347,15 @@ get_bif_constr({erlang, 'and', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end,
DstFun = fun(Map) ->
Arg1Type = lookup_type(Arg1, Map),
- case t_is_atom(false, Arg1Type) of
+ case t_is_any_atom(false, Arg1Type) of
true -> False;
false ->
Arg2Type = lookup_type(Arg2, Map),
- case t_is_atom(false, Arg2Type) of
+ case t_is_any_atom(false, Arg2Type) of
true -> False;
false ->
- case (t_is_atom(true, Arg1Type)
- andalso t_is_atom(true, Arg2Type)) of
+ case (t_is_any_atom(true, Arg1Type)
+ andalso t_is_any_atom(true, Arg2Type)) of
true -> True;
false -> t_boolean()
end
@@ -1413,12 +1374,14 @@ get_bif_constr({erlang, 'or', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
ArgFun = fun(Var) ->
fun(Map) ->
DstType = lookup_type(Dst, Map),
- case t_is_atom(false, DstType) of
+ case t_is_any_atom(false, DstType) of
true -> False;
false ->
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true ->
- case t_is_atom(false, lookup_type(Var, Map)) of
+ case
+ t_is_any_atom(false, lookup_type(Var, Map))
+ of
true -> True;
false -> t_boolean()
end;
@@ -1430,15 +1393,15 @@ get_bif_constr({erlang, 'or', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
end,
DstFun = fun(Map) ->
Arg1Type = lookup_type(Arg1, Map),
- case t_is_atom(true, Arg1Type) of
+ case t_is_any_atom(true, Arg1Type) of
true -> True;
false ->
Arg2Type = lookup_type(Arg2, Map),
- case t_is_atom(true, Arg2Type) of
+ case t_is_any_atom(true, Arg2Type) of
true -> True;
false ->
- case (t_is_atom(false, Arg1Type)
- andalso t_is_atom(false, Arg2Type)) of
+ case (t_is_any_atom(false, Arg1Type)
+ andalso t_is_any_atom(false, Arg2Type)) of
true -> False;
false -> t_boolean()
end
@@ -1465,10 +1428,10 @@ get_bif_constr({erlang, 'not', 1}, Dst, [Arg] = Args, _State) ->
Fun = fun(Var) ->
fun(Map) ->
Type = lookup_type(Var, Map),
- case t_is_atom(true, Type) of
+ case t_is_any_atom(true, Type) of
true -> False;
false ->
- case t_is_atom(false, Type) of
+ case t_is_any_atom(false, Type) of
true -> True;
false -> t_boolean()
end
@@ -1485,10 +1448,10 @@ get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
fun(Map) ->
DstType = lookup_type(Dst, Map),
OtherVarType = lookup_type(OtherVar, Map),
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true -> OtherVarType;
false ->
- case t_is_atom(false, DstType) of
+ case t_is_any_atom(false, DstType) of
true ->
case is_singleton_type(OtherVarType) of
true -> t_subtract(lookup_type(Self, Map), OtherVarType);
@@ -1518,7 +1481,7 @@ get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
get_bif_constr({erlang, '==', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
DstFun = fun(Map) ->
TmpArgTypes = lookup_type_list(Args, Map),
- erl_bif_types:type(erlang, '==', 2, TmpArgTypes)
+ bif_return(erlang, '==', 2, TmpArgTypes)
end,
ArgFun =
fun(Var, Self) ->
@@ -1527,16 +1490,16 @@ get_bif_constr({erlang, '==', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
DstType = lookup_type(Dst, Map),
case is_singleton_non_number_type(VarType) of
true ->
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true -> VarType;
false ->
- case t_is_atom(false, DstType) of
+ case t_is_any_atom(false, DstType) of
true -> t_subtract(lookup_type(Self, Map), VarType);
false -> t_any()
end
end;
false ->
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true ->
case t_is_number(VarType) of
true -> t_number();
@@ -1560,18 +1523,14 @@ get_bif_constr({erlang, '==', 2}, Dst, [Arg1, Arg2] = Args, _State) ->
mk_constraint(Arg1, sub, ArgV1),
mk_constraint(Arg2, sub, ArgV2)]);
get_bif_constr({erlang, element, 2} = _BIF, Dst, Args,
- #state{cs = Constrs, opaques = Opaques}) ->
+ #state{cs = Constrs}) ->
GenType = erl_bif_types:type(erlang, element, 2),
case t_is_none(GenType) of
true -> ?debug("Bif: ~w failed\n", [_BIF]), throw(error);
false ->
Fun = fun(Map) ->
- [I, T] = ATs = lookup_type_list(Args, Map),
- ATs2 = case lists:member(T, Opaques) of
- true -> [I, erl_types:t_opaque_structure(T)];
- false -> ATs
- end,
- erl_bif_types:type(erlang, element, 2, ATs2)
+ ATs2 = lookup_type_list(Args, Map),
+ bif_return(erlang, element, 2, ATs2)
end,
ReturnType = ?mk_fun_var(Fun, Args),
ArgTypes = erl_bif_types:arg_types(erlang, element, 2),
@@ -1583,22 +1542,14 @@ get_bif_constr({erlang, element, 2} = _BIF, Dst, Args,
end,
mk_conj_constraint_list([mk_constraint(Dst, sub, ReturnType)|NewCs])
end;
-get_bif_constr({M, F, A} = _BIF, Dst, Args, State) ->
+get_bif_constr({M, F, A} = _BIF, Dst, Args, _State) ->
GenType = erl_bif_types:type(M, F, A),
- Opaques = State#state.opaques,
case t_is_none(GenType) of
true -> ?debug("Bif: ~w failed\n", [_BIF]), throw(error);
false ->
- UnopaqueFun =
- fun(T) -> case lists:member(T, Opaques) of
- true -> erl_types:t_unopaque(T, [T]);
- false -> T
- end
- end,
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)
+ TmpArgTypes = lookup_type_list(Args, Map),
+ bif_return(M, F, A, TmpArgTypes)
end, Args),
case erl_bif_types:is_known(M, F, A) of
false ->
@@ -1616,12 +1567,12 @@ get_bif_constr({M, F, A} = _BIF, Dst, Args, State) ->
end.
eval_inv_arith('+', _Pos, Dst, Arg) ->
- erl_bif_types:type(erlang, '-', 2, [Dst, Arg]);
+ bif_return(erlang, '-', 2, [Dst, Arg]);
eval_inv_arith('*', _Pos, Dst, Arg) ->
case t_number_vals(Arg) of
[0] -> t_integer();
_ ->
- TmpRet = erl_bif_types:type(erlang, 'div', 2, [Dst, Arg]),
+ TmpRet = bif_return(erlang, 'div', 2, [Dst, Arg]),
Zero = t_from_term(0),
%% If 0 is not part of the result, it cannot be part of the argument.
case t_is_subtype(Zero, Dst) of
@@ -1630,9 +1581,9 @@ eval_inv_arith('*', _Pos, Dst, Arg) ->
end
end;
eval_inv_arith('-', 1, Dst, Arg) ->
- erl_bif_types:type(erlang, '-', 2, [Arg, Dst]);
+ bif_return(erlang, '-', 2, [Arg, Dst]);
eval_inv_arith('-', 2, Dst, Arg) ->
- erl_bif_types:type(erlang, '+', 2, [Arg, Dst]).
+ bif_return(erlang, '+', 2, [Arg, Dst]).
range_inc(neg_inf) -> neg_inf;
range_inc(pos_inf) -> pos_inf;
@@ -1642,33 +1593,20 @@ range_dec(neg_inf) -> neg_inf;
range_dec(pos_inf) -> pos_inf;
range_dec(Int) when is_integer(Int) -> Int - 1.
-get_bif_test_constr(Dst, Arg, Type, State) ->
+get_bif_test_constr(Dst, Arg, Type, _State) ->
ArgFun = fun(Map) ->
DstType = lookup_type(Dst, Map),
- case t_is_atom(true, DstType) of
+ case t_is_any_atom(true, DstType) of
true -> Type;
false -> t_any()
end
end,
ArgV = ?mk_fun_var(ArgFun, [Dst]),
- Opaques = State#state.opaques,
DstFun = fun(Map) ->
ArgType = lookup_type(Arg, Map),
case t_is_none(t_inf(ArgType, Type)) of
true ->
- case lists:member(ArgType, Opaques) of
- true ->
- OpaqueStruct = erl_types:t_opaque_structure(ArgType),
- case t_is_none(t_inf(OpaqueStruct, Type)) of
- true -> t_from_term(false);
- false ->
- case t_is_subtype(ArgType, Type) of
- true -> t_from_term(true);
- false -> t_boolean()
- end
- end;
- false -> t_from_term(false)
- end;
+ t_from_term(false);
false ->
case t_is_subtype(ArgType, Type) of
true -> t_from_term(true);
@@ -1784,7 +1722,6 @@ minimize_state(#state{
fun_arities = FunArities,
self_rec = SelfRec,
prop_types = {d, PropTypes},
- opaques = Opaques,
solvers = Solvers
}) ->
Opts = [{read_concurrency, true}],
@@ -1798,7 +1735,6 @@ minimize_state(#state{
fun_arities = FunArities,
self_rec = SelfRec,
prop_types = {e, ETSPropTypes},
- opaques = Opaques,
solvers = Solvers
}.
@@ -1956,8 +1892,7 @@ v2_solve_ref(Fun, Map, State) ->
{ok, NewMap}.
v2_solve(#constraint{}=C, Map, V2State) ->
- State = V2State#v2_state.state,
- case solve_one_c(C, Map, State#state.opaques) of
+ case solve_one_c(C, Map) of
error ->
report_failed_constraint(C, Map),
{error, V2State};
@@ -2031,7 +1966,7 @@ v2_solve_self_recursive(Cs, Map, Id, RecType0, V2State0) ->
{ok, NewMap, V2State, U} ->
pp_map("recursive finished", NewMap),
NewRecType = unsafe_lookup_type(Id, NewMap),
- case t_is_equal(NewRecType, RecType0) of
+ case is_equal(NewRecType, RecType0) of
true ->
{NewMap2, U1} = enter_var_type(RecVar, NewRecType, NewMap),
{ok, NewMap2, V2State, lists:umerge(U, U1)};
@@ -2397,7 +2332,7 @@ solve_self_recursive(Cs, Map, MapDict, Id, RecType0, State) ->
{ok, NewMapDict, NewMap} ->
pp_map("NewMap", NewMap),
NewRecType = unsafe_lookup_type(Id, NewMap),
- case t_is_equal(NewRecType, RecType0) of
+ case is_equal(NewRecType, RecType0) of
true ->
{ok, NewMapDict, enter_type(RecVar, NewRecType, NewMap)};
false ->
@@ -2447,7 +2382,7 @@ solve_cs([#constraint_list{} = C|Tail], Map, MapDict, State) ->
{error, _NewMapDict} = Error -> Error
end;
solve_cs([#constraint{} = C|Tail], Map, MapDict, State) ->
- case solve_one_c(C, Map, State#state.opaques) of
+ case solve_one_c(C, Map) of
error ->
report_failed_constraint(C, Map),
{error, MapDict};
@@ -2457,10 +2392,10 @@ solve_cs([#constraint{} = C|Tail], Map, MapDict, State) ->
solve_cs([], Map, MapDict, _State) ->
{ok, MapDict, Map}.
-solve_one_c(#constraint{lhs = Lhs, rhs = Rhs, op = Op}, Map, Opaques) ->
+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, opaque),
+ Inf = t_inf(LhsType, RhsType),
?debug("Solving: ~s :: ~s ~w ~s :: ~s\n\tInf: ~s\n",
[format_type(Lhs), format_type(LhsType), Op,
format_type(Rhs), format_type(RhsType), format_type(Inf)]),
@@ -2468,12 +2403,12 @@ solve_one_c(#constraint{lhs = Lhs, rhs = Rhs, op = Op}, Map, Opaques) ->
true -> error;
false ->
case Op of
- sub -> solve_subtype(Lhs, Inf, Map, Opaques);
+ sub -> solve_subtype(Lhs, Inf, Map);
eq ->
- case solve_subtype(Lhs, Inf, Map, Opaques) of
+ case solve_subtype(Lhs, Inf, Map) of
error -> error;
{ok, {Map1, U1}} ->
- case solve_subtype(Rhs, Inf, Map1, Opaques) of
+ case solve_subtype(Rhs, Inf, Map1) of
error -> error;
{ok, {Map2, U2}} -> {ok, {Map2, lists:umerge(U1, U2)}}
end
@@ -2481,7 +2416,7 @@ solve_one_c(#constraint{lhs = Lhs, rhs = Rhs, op = Op}, Map, Opaques) ->
end
end.
-solve_subtype(Type, Inf, Map, Opaques) ->
+solve_subtype(Type, Inf, Map) ->
%% case cerl:is_literal(Type) of
%% true ->
%% case t_is_subtype(t_from_term(cerl:concrete(Type)), Inf) of
@@ -2489,7 +2424,7 @@ solve_subtype(Type, Inf, Map, Opaques) ->
%% false -> error
%% end;
%% false ->
- try t_unify(Type, Inf, Opaques) of
+ try t_unify(Type, Inf) of
{_, List} -> {ok, enter_type_list(List, Map)}
catch
throw:{mismatch, _T1, _T2} ->
@@ -2540,7 +2475,7 @@ join_one_key(Key, [Map|Maps], Type) ->
true -> Type;
false ->
NewType = lookup_type(Key, Map),
- case t_is_equal(NewType, Type) of
+ case is_equal(NewType, Type) of
true -> join_one_key(Key, Maps, Type);
false -> join_one_key(Key, Maps, t_sup(NewType, Type))
end
@@ -2555,7 +2490,7 @@ maps_are_equal(Map1, Map2, Deps) ->
maps_are_equal_1(Map1, Map2, [H|Tail]) ->
T1 = lookup_type(H, Map1),
T2 = lookup_type(H, Map2),
- case t_is_equal(T1, T2) of
+ 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)]),
@@ -2587,14 +2522,20 @@ prune_keys(Map1, Map2, Deps) ->
enter_type(Key, Val, Map) when is_integer(Key) ->
?debug("Entering ~s :: ~s\n", [format_type(t_var(Key)), format_type(Val)]),
- case t_is_any(Val) of
+ %% Keep any() in the map if it is opaque:
+ case is_equal(Val, t_any()) of
true ->
erase_type(Key, Map);
false ->
LimitedVal = t_limit(Val, ?INTERNAL_TYPE_LIMIT),
+ [?debug("LimitedVal ~s\n", [format_type(LimitedVal)]) ||
+ not is_equal(LimitedVal, Val)],
case dict:find(Key, Map) of
- {ok, LimitedVal} -> Map;
- {ok, _} -> map_store(Key, LimitedVal, Map);
+ {ok, Value} ->
+ case is_equal(Value, LimitedVal) of
+ true -> Map;
+ false -> map_store(Key, LimitedVal, Map)
+ end;
error -> map_store(Key, LimitedVal, Map)
end
end;
@@ -2681,7 +2622,10 @@ updated_vars_only(U, OldMap, NewMap) ->
[V || V <- U, not is_same(V, OldMap, NewMap)].
is_same(Key, Map1, Map2) ->
- t_is_equal(lookup_type(Key, Map1), lookup_type(Key, Map2)).
+ is_equal(lookup_type(Key, Map1), lookup_type(Key, Map2)).
+
+is_equal(Type1, Type2) ->
+ t_is_equal(Type1, Type2).
pp_map(_S, _Map) ->
?debug("\t~s: ~p\n",
@@ -2716,11 +2660,6 @@ new_state(SCC0, NextLabel, CallGraph, Plt, PropTypes, Solvers) ->
state__set_rec_dict(State, RecDict) ->
State#state{records = RecDict}.
-state__set_opaques(#state{records = RecDict} = State, {M, _F, _A}) ->
- Opaques =
- erl_types:module_builtin_opaques(M) ++ t_opaque_from_records(RecDict),
- State#state{opaques = Opaques, module = M}.
-
state__set_in_match(State, Bool) ->
State#state{in_match = Bool}.
@@ -2760,7 +2699,8 @@ state__lookup_undef_var(Tree, #state{callgraph = CG, plt = Plt}) ->
{ok, MFA} ->
case dialyzer_plt:lookup(Plt, MFA) of
none -> error;
- {value, {RetType, ArgTypes}} -> {ok, t_fun(ArgTypes, RetType)}
+ {value, {RetType, ArgTypes}} ->
+ {ok, t_fun(ArgTypes, RetType)}
end
end.
@@ -2897,7 +2837,7 @@ state__get_cs(Var, #state{cmap = {d, Dict}}) ->
dict:fetch(Var, Dict).
state__is_self_rec(Fun, #state{self_rec = SelfRec}) ->
- Fun =:= SelfRec.
+ not (SelfRec =:= 'false') andalso is_equal(Fun, SelfRec).
state__store_funs(Vars0, Funs0, #state{fun_map = Map} = State) ->
debug_make_name_map(Vars0, Funs0),
@@ -2923,7 +2863,9 @@ state__finalize(State) ->
%%
%% ============================================================================
--spec mk_constraint(erl_types:erl_type(), constr_op(), fvar_or_type()) -> #constraint{}.
+-spec mk_constraint(erl_types:erl_type(),
+ constr_op(),
+ fvar_or_type()) -> #constraint{}.
mk_constraint(Lhs, Op, Rhs) ->
case t_is_any(Lhs) orelse constraint_opnd_is_any(Rhs) of
@@ -2934,9 +2876,9 @@ mk_constraint(Lhs, Op, Rhs) ->
case Deps =:= [] of
true ->
%% This constraint is constant. Solve it immediately.
- case solve_one_c(C, map_new(), []) of
+ case solve_one_c(C, map_new()) of
error -> throw(error);
- _ ->
+ _R ->
%% This is always true, keep it anyway for logistic reasons
C
end;
@@ -2944,10 +2886,13 @@ mk_constraint(Lhs, Op, Rhs) ->
C
end;
true ->
- C = mk_constraint_1(t_any(), Op, t_any()),
- C#constraint{deps = []}
+ mk_constraint_any(Op)
end.
+mk_constraint_any(Op) ->
+ C = mk_constraint_1(t_any(), Op, t_any()),
+ C#constraint{deps = []}.
+
%% the following function is used so that we do not call
%% erl_types:t_is_any/1 with a term other than an erl_type()
-spec constraint_opnd_is_any(fvar_or_type()) -> boolean().
@@ -3002,7 +2947,8 @@ mk_constraint_1(Lhs, Op, Rhs) ->
#constraint{lhs = Lhs, op = Op, rhs = Rhs}.
mk_constraints([Lhs|LhsTail], Op, [Rhs|RhsTail]) ->
- [mk_constraint(Lhs, Op, Rhs)|mk_constraints(LhsTail, Op, RhsTail)];
+ [mk_constraint(Lhs, Op, Rhs) |
+ mk_constraints(LhsTail, Op, RhsTail)];
mk_constraints([], _Op, []) ->
[].
@@ -3017,7 +2963,7 @@ mk_constraint_list(Type, List) ->
Deps = calculate_deps(List2),
case Deps =:= [] of
true -> #constraint_list{type = conj,
- list = [mk_constraint(t_any(), eq, t_any())],
+ list = [mk_constraint_any(eq)],
deps = []};
false -> #constraint_list{type = Type, list = List2, deps = Deps}
end.
@@ -3236,6 +3182,9 @@ calculate_masks([], _I, L) ->
%%
%% ============================================================================
+bif_return(M, F, A, Xs) ->
+ erl_bif_types:type(M, F, A, Xs).
+
is_singleton_non_number_type(Type) ->
case t_is_number(Type) of
true -> false;
@@ -3265,7 +3214,7 @@ is_singleton_type(Type) ->
find_element(Args, Cs) ->
[Pos, Tuple] = Args,
- case erl_types:t_is_number(Pos) of
+ case t_is_number(Pos) of
true ->
case erl_types:t_number_vals(Pos) of
'unknown' -> 'unknown';
@@ -3301,8 +3250,10 @@ find_constraint(Tuple, [_|Cs]) ->
lookup_record(Records, Tag, Arity) ->
case erl_types:lookup_record(Tag, Arity, Records) of
{ok, Fields} ->
- {ok, t_tuple([t_from_term(Tag)|
- [FieldType || {_FieldName, FieldType} <- Fields]])};
+ RecType =
+ t_tuple([t_from_term(Tag)|
+ [FieldType || {_FieldName, FieldType} <- Fields]]),
+ {ok, RecType};
error ->
error
end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 05:32:29 +0000