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-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl260
1 files changed, 167 insertions, 93 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index b80c7efc1a..7137dbc036 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -2,7 +2,7 @@
%%--------------------------------------------------------------------
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2011. 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
@@ -657,7 +657,8 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
true -> opaque;
false -> structured
end,
- RetWithoutLocal = t_inf(t_inf(ContrRet, BifRet, RetMode), SigRange, RetMode),
+ RetWithoutContr = t_inf(SigRange, BifRet, RetMode),
+ RetWithoutLocal = t_inf(ContrRet, RetWithoutContr, RetMode),
?debug("--------------------------------------------------------\n", []),
?debug("Fun: ~p\n", [Fun]),
?debug("Args: ~s\n", [erl_types:t_to_string(t_product(ArgTypes))]),
@@ -666,6 +667,7 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
[erl_types:t_to_string(t_product(NewArgsContract))]),
?debug("NewArgsBif: ~s\n", [erl_types:t_to_string(t_product(NewArgsBif))]),
?debug("NewArgTypes: ~s\n", [erl_types:t_to_string(t_product(NewArgTypes))]),
+ ?debug("RetWithoutContr: ~s\n",[erl_types:t_to_string(RetWithoutContr)]),
?debug("RetWithoutLocal: ~s\n", [erl_types:t_to_string(RetWithoutLocal)]),
?debug("BifRet: ~s\n", [erl_types:t_to_string(BifRange(NewArgTypes))]),
?debug("ContrRet: ~s\n", [erl_types:t_to_string(CRange(TmpArgTypes))]),
@@ -700,22 +702,39 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
State2 =
case FailedConj andalso not (IsFailBif orelse IsFailSig) of
true ->
- FailedSig = any_none(NewArgsSig),
- FailedContract = any_none([CRange(TmpArgsContract)|NewArgsContract]),
- FailedBif = any_none([BifRange(NewArgsBif)|NewArgsBif]),
- InfSig = t_inf(t_fun(SigArgs, SigRange),
- t_fun(BifArgs, BifRange(BifArgs))),
- FailReason = apply_fail_reason(FailedSig, FailedBif, FailedContract),
- Msg = get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes, InfSig,
- Contr, CArgs, State1, FailReason),
- WarnType = case Msg of
- {call, _} -> ?WARN_FAILING_CALL;
- {apply, _} -> ?WARN_FAILING_CALL;
- {call_with_opaque, _} -> ?WARN_OPAQUE;
- {call_without_opaque, _} -> ?WARN_OPAQUE;
- {opaque_type_test, _} -> ?WARN_OPAQUE
- end,
- state__add_warning(State1, WarnType, Tree, Msg);
+ case t_is_none(RetWithoutLocal) andalso
+ not t_is_none(RetWithoutContr) andalso
+ not any_none(NewArgTypes) of
+ true ->
+ {value, C1} = Contr,
+ Contract = dialyzer_contracts:contract_to_string(C1),
+ {M1, F1, A1} = state__lookup_name(Fun, State),
+ ArgStrings = format_args(Args, ArgTypes, State),
+ CRet = erl_types:t_to_string(RetWithoutContr),
+ %% This Msg will be post_processed by dialyzer_succ_typings
+ Msg =
+ {contract_range, [Contract, M1, F1, A1, ArgStrings, CRet]},
+ state__add_warning(State1, ?WARN_CONTRACT_RANGE, Tree, Msg);
+ false ->
+ FailedSig = any_none(NewArgsSig),
+ FailedContract =
+ any_none([CRange(TmpArgsContract)|NewArgsContract]),
+ FailedBif = any_none([BifRange(NewArgsBif)|NewArgsBif]),
+ InfSig = t_inf(t_fun(SigArgs, SigRange),
+ t_fun(BifArgs, BifRange(BifArgs))),
+ FailReason =
+ apply_fail_reason(FailedSig, FailedBif, FailedContract),
+ Msg = get_apply_fail_msg(Fun, Args, ArgTypes, NewArgTypes, InfSig,
+ Contr, CArgs, State1, FailReason),
+ WarnType = case Msg of
+ {call, _} -> ?WARN_FAILING_CALL;
+ {apply, _} -> ?WARN_FAILING_CALL;
+ {call_with_opaque, _} -> ?WARN_OPAQUE;
+ {call_without_opaque, _} -> ?WARN_OPAQUE;
+ {opaque_type_test, _} -> ?WARN_OPAQUE
+ end,
+ state__add_warning(State1, WarnType, Tree, Msg)
+ end;
false -> State1
end,
State3 =
@@ -1350,7 +1369,7 @@ do_clause(C, Arg, ArgType0, OrigArgType, Map,
bind_pat_vars(Pats, ArgTypes, [], Map1, State1)
end,
case BindRes of
- {error, BindOrOpaque, NewPats, Type, OpaqueTerm} ->
+ {error, ErrorType, NewPats, Type, OpaqueTerm} ->
?debug("Failed binding pattern: ~s\nto ~s\n",
[cerl_prettypr:format(C), format_type(ArgType0, State1)]),
case state__warning_mode(State1) of
@@ -1358,8 +1377,9 @@ do_clause(C, Arg, ArgType0, OrigArgType, Map,
{State1, Map, t_none(), ArgType0};
true ->
PatString =
- case BindOrOpaque of
+ case ErrorType of
bind -> format_patterns(Pats);
+ record -> format_patterns(Pats);
opaque -> format_patterns(NewPats)
end,
{Msg, Force} =
@@ -1399,13 +1419,15 @@ do_clause(C, Arg, ArgType0, OrigArgType, Map,
false ->
true
end,
- PatTypes = case BindOrOpaque of
+ PatTypes = case ErrorType of
bind -> [PatString, format_type(ArgType0, State1)];
+ record -> [PatString, format_type(Type, State1)];
opaque -> [PatString, format_type(Type, State1),
format_type(OpaqueTerm, State1)]
- end,
- FailedMsg = case BindOrOpaque of
+ end,
+ FailedMsg = case ErrorType of
bind -> {pattern_match, PatTypes};
+ record -> {record_match, PatTypes};
opaque -> {opaque_match, PatTypes}
end,
{FailedMsg, Force0}
@@ -1413,6 +1435,7 @@ do_clause(C, Arg, ArgType0, OrigArgType, Map,
WarnType = case Msg of
{opaque_match, _} -> ?WARN_OPAQUE;
{pattern_match, _} -> ?WARN_MATCHING;
+ {record_match, _} -> ?WARN_MATCHING;
{pattern_match_cov, _} -> ?WARN_MATCHING
end,
{state__add_warning(State1, WarnType, C, Msg, Force),
@@ -1457,6 +1480,7 @@ do_clause(C, Arg, ArgType0, OrigArgType, Map,
false ->
WarnType = case Msg of
{guard_fail, _} -> ?WARN_MATCHING;
+ {neg_guard_fail, _} -> ?WARN_MATCHING;
{opaque_guard, _} -> ?WARN_OPAQUE
end,
state__add_warning(State1, WarnType, FailGuard, Msg);
@@ -1505,14 +1529,18 @@ bind_pat_vars(Pats, Types, Acc, Map, State) ->
try
bind_pat_vars(Pats, Types, Acc, Map, State, false)
catch
- throw:Error -> Error % Error = {error, bind | opaque, ErrorPats, ErrorType}
+ throw:Error ->
+ %% Error = {error, bind | opaque | record, ErrorPats, ErrorType}
+ Error
end.
bind_pat_vars_reverse(Pats, Types, Acc, Map, State) ->
try
bind_pat_vars(Pats, Types, Acc, Map, State, true)
catch
- throw:Error -> Error % Error = {error, bind | opaque, ErrorPats, ErrorType}
+ throw:Error ->
+ %% Error = {error, bind | opaque | record, ErrorPats, ErrorType}
+ Error
end.
bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
@@ -1567,18 +1595,21 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
end;
tuple ->
Es = cerl:tuple_es(Pat),
- Prototype =
+ {TypedRecord, Prototype} =
case Es of
- [] -> t_tuple([]);
+ [] -> {false, t_tuple([])};
[Tag|Left] ->
case cerl:is_c_atom(Tag) of
true ->
TagAtom = cerl:atom_val(Tag),
case state__lookup_record(TagAtom, length(Left), State) of
- error -> t_tuple(length(Es));
- {ok, Record} -> Record
+ error -> {false, t_tuple(length(Es))};
+ {ok, Record} ->
+ [_Head|AnyTail] = [t_any() || _ <- Es],
+ UntypedRecord = t_tuple([t_atom(TagAtom)|AnyTail]),
+ {not erl_types:t_is_equal(Record, UntypedRecord), Record}
end;
- false -> t_tuple(length(Es))
+ false -> {false, t_tuple(length(Es))}
end
end,
Tuple = t_inf(Prototype, Type),
@@ -1603,7 +1634,11 @@ bind_pat_vars([Pat|PatLeft], [Type|TypeLeft], Acc, Map, State, Rev) ->
bind_error([Pat], Tuple, Opaque, opaque);
false ->
case [M || {M, _} <- Results, M =/= error] of
- [] -> bind_error([Pat], Tuple, t_none(), bind);
+ [] ->
+ case TypedRecord of
+ true -> bind_error([Pat], Tuple, Prototype, record);
+ false -> bind_error([Pat], Tuple, t_none(), bind)
+ end;
Maps ->
Map1 = join_maps(Maps, Map),
TupleType = t_sup([t_tuple(EsTypes)
@@ -1748,7 +1783,7 @@ bind_opaque_pats(GenType, Type, Pat, Map, State, Rev) ->
bind_guard(Guard, Map, State) ->
try bind_guard(Guard, Map, dict:new(), pos, State) of
- {Map1, _Type} -> Map1
+ {Map1, _Type} -> Map1
catch
throw:{fail, Warning} -> {error, Warning};
throw:{fatal_fail, Warning} -> {error, Warning}
@@ -1869,8 +1904,8 @@ handle_guard_gen_fun({M, F, A}, Guard, Map, Env, Eval, State) ->
true ->
%% Is this an error-bif?
case t_is_none(erl_bif_types:type(M, F, A)) of
- true -> signal_guard_fail(Guard, As, State);
- false -> signal_guard_fatal_fail(Guard, As, State)
+ true -> signal_guard_fail(Eval, Guard, As, State);
+ false -> signal_guard_fatal_fail(Eval, Guard, As, State)
end;
false ->
BifArgs = case erl_bif_types:arg_types(M, F, A) of
@@ -1887,7 +1922,7 @@ handle_guard_gen_fun({M, F, A}, Guard, Map, Env, Eval, State) ->
case t_is_none(Ret) of
true ->
case Eval =:= pos of
- true -> signal_guard_fail(Guard, As, State);
+ true -> signal_guard_fail(Eval, Guard, As, State);
false -> throw({fail, none})
end;
false -> {Map2, Ret}
@@ -1900,7 +1935,7 @@ handle_guard_type_test(Guard, F, Map, Env, Eval, State) ->
case bind_type_test(Eval, F, ArgType, State) of
error ->
?debug("Type test: ~w failed\n", [F]),
- signal_guard_fail(Guard, [ArgType], State);
+ signal_guard_fail(Eval, Guard, [ArgType], State);
{ok, NewArgType, Ret} ->
?debug("Type test: ~w succeeded, NewType: ~s, Ret: ~s\n",
[F, t_to_string(NewArgType), t_to_string(Ret)]),
@@ -1963,18 +1998,19 @@ handle_guard_comp(Guard, Comp, Map, Env, Eval, State) ->
true when Eval =:= pos -> {Map, t_atom(true)};
true when Eval =:= dont_know -> {Map, t_atom(true)};
true when Eval =:= neg -> {Map, t_atom(true)};
- false when Eval =:= pos -> signal_guard_fail(Guard, ArgTypes, State);
+ false when Eval =:= pos ->
+ signal_guard_fail(Eval, Guard, ArgTypes, State);
false when Eval =:= dont_know -> {Map, t_atom(false)};
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
- error -> signal_guard_fail(Guard, ArgTypes, State);
+ 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
- error -> signal_guard_fail(Guard, ArgTypes, State);
+ error -> signal_guard_fail(Eval, Guard, ArgTypes, State);
{ok, NewMap} -> {NewMap, t_atom(true)}
end;
{_, _} ->
@@ -2014,7 +2050,7 @@ handle_guard_is_function(Guard, Map, Env, Eval, State) ->
[FunType0, ArityType0] = ArgTypes0,
ArityType = t_inf(ArityType0, t_integer()),
case t_is_none(ArityType) of
- true -> signal_guard_fail(Guard, ArgTypes0, State);
+ true -> signal_guard_fail(Eval, Guard, ArgTypes0, State);
false ->
FunTypeConstr =
case t_number_vals(ArityType) of
@@ -2026,7 +2062,7 @@ handle_guard_is_function(Guard, Map, Env, Eval, State) ->
case t_is_none(FunType) of
true ->
case Eval of
- pos -> signal_guard_fail(Guard, ArgTypes0, State);
+ pos -> signal_guard_fail(Eval, Guard, ArgTypes0, State);
neg -> {Map1, t_atom(false)};
dont_know -> {Map1, t_atom(false)}
end;
@@ -2062,7 +2098,7 @@ handle_guard_is_record(Guard, Map, Env, Eval, State) ->
case t_is_none(Type) of
true ->
case Eval of
- pos -> signal_guard_fail(Guard,
+ pos -> signal_guard_fail(Eval, Guard,
[RecType, t_from_term(Tag),
t_from_term(Arity)],
State);
@@ -2085,7 +2121,10 @@ handle_guard_eq(Guard, Map, Env, Eval, State) ->
true ->
if
Eval =:= pos -> {Map, t_atom(true)};
- Eval =:= neg -> throw({fail, none});
+ Eval =:= neg ->
+ ArgTypes = [t_from_term(cerl:concrete(Arg1)),
+ t_from_term(cerl:concrete(Arg2))],
+ signal_guard_fail(Eval, Guard, ArgTypes, State);
Eval =:= dont_know -> {Map, t_atom(true)}
end;
false ->
@@ -2095,7 +2134,7 @@ handle_guard_eq(Guard, Map, Env, Eval, State) ->
Eval =:= pos ->
ArgTypes = [t_from_term(cerl:concrete(Arg1)),
t_from_term(cerl:concrete(Arg2))],
- signal_guard_fail(Guard, ArgTypes, State)
+ signal_guard_fail(Eval, Guard, ArgTypes, State)
end
end;
{literal, _} when Eval =:= pos ->
@@ -2140,7 +2179,10 @@ handle_guard_eqeq(Guard, Map, Env, Eval, State) ->
{literal, literal} ->
case cerl:concrete(Arg1) =:= cerl:concrete(Arg2) of
true ->
- if Eval =:= neg -> throw({fail, none});
+ if Eval =:= neg ->
+ ArgTypes = [t_from_term(cerl:concrete(Arg1)),
+ t_from_term(cerl:concrete(Arg2))],
+ signal_guard_fail(Eval, Guard, ArgTypes, State);
Eval =:= pos -> {Map, t_atom(true)};
Eval =:= dont_know -> {Map, t_atom(true)}
end;
@@ -2150,7 +2192,7 @@ handle_guard_eqeq(Guard, Map, Env, Eval, State) ->
Eval =:= pos ->
ArgTypes = [t_from_term(cerl:concrete(Arg1)),
t_from_term(cerl:concrete(Arg2))],
- signal_guard_fail(Guard, ArgTypes, State)
+ signal_guard_fail(Eval, Guard, ArgTypes, State)
end
end;
{literal, _} when Eval =:= pos ->
@@ -2172,7 +2214,7 @@ bind_eqeq_guard(Guard, Arg1, Arg2, Map, Env, Eval, State) ->
case Eval of
neg -> {Map2, t_atom(false)};
dont_know -> {Map2, t_atom(false)};
- pos -> signal_guard_fail(Guard, [Type1, Type2], State)
+ pos -> signal_guard_fail(Eval, Guard, [Type1, Type2], State)
end;
false ->
case Eval of
@@ -2199,29 +2241,29 @@ bind_eqeq_guard(Guard, Arg1, Arg2, Map, Env, Eval, State) ->
end.
bind_eqeq_guard_lit_other(Guard, Arg1, Arg2, Map, Env, State) ->
- %% Assumes positive evaluation
+ Eval = dont_know,
case cerl:concrete(Arg1) of
true ->
{_, Type} = MT = bind_guard(Arg2, Map, Env, pos, State),
case t_is_atom(true, Type) of
true -> MT;
false ->
- {_, Type0} = bind_guard(Arg2, Map, Env, dont_know, State),
- signal_guard_fail(Guard, [Type0, t_atom(true)], State)
+ {_, Type0} = bind_guard(Arg2, Map, Env, Eval, State),
+ signal_guard_fail(Eval, Guard, [Type0, t_atom(true)], State)
end;
false ->
{Map1, Type} = bind_guard(Arg2, Map, Env, neg, State),
case t_is_atom(false, Type) of
true -> {Map1, t_atom(true)};
false ->
- {_, Type0} = bind_guard(Arg2, Map, Env, dont_know, State),
- signal_guard_fail(Guard, [Type0, t_atom(true)], State)
+ {_, Type0} = bind_guard(Arg2, Map, Env, Eval, State),
+ signal_guard_fail(Eval, Guard, [Type0, t_atom(false)], State)
end;
Term ->
LitType = t_from_term(Term),
- {Map1, Type} = bind_guard(Arg2, Map, Env, dont_know, State),
+ {Map1, Type} = bind_guard(Arg2, Map, Env, Eval, State),
case t_is_subtype(LitType, Type) of
- false -> signal_guard_fail(Guard, [Type, LitType], State);
+ false -> signal_guard_fail(Eval, Guard, [Type, LitType], State);
true ->
case cerl:is_c_var(Arg2) of
true -> {enter_type(Arg2, LitType, Map1), t_atom(true)};
@@ -2236,11 +2278,11 @@ handle_guard_and(Guard, Map, Env, Eval, State) ->
pos ->
{Map1, Type1} = bind_guard(Arg1, Map, Env, Eval, State),
case t_is_atom(true, Type1) of
- false -> throw({fail, none});
+ 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
- false -> throw({fail, none});
+ false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State);
true -> {Map2, t_atom(true)}
end
end;
@@ -2250,31 +2292,37 @@ handle_guard_and(Guard, Map, Env, Eval, State) ->
catch throw:{fail, _} -> bind_guard(Arg2, Map, Env, pos, State)
end,
{Map2, Type2} =
- try bind_guard(Arg1, Map, Env, neg, State)
- catch throw:{fail, _} -> bind_guard(Arg2, Map, Env, pos, State)
+ try bind_guard(Arg2, Map, Env, neg, State)
+ catch throw:{fail, _} -> bind_guard(Arg1, Map, Env, pos, State)
end,
case t_is_atom(false, Type1) orelse t_is_atom(false, Type2) of
true -> {join_maps([Map1, Map2], Map), t_atom(false)};
- false -> throw({fail, none})
+ false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State)
end;
dont_know ->
- True = t_atom(true),
{Map1, Type1} = bind_guard(Arg1, Map, Env, dont_know, State),
- case t_is_none(t_inf(Type1, t_boolean())) of
- true -> throw({fail, none});
+ {Map2, Type2} = bind_guard(Arg2, Map, Env, dont_know, State),
+ Bool1 = t_inf(Type1, t_boolean()),
+ Bool2 = t_inf(Type2, t_boolean()),
+ case t_is_none(Bool1) orelse t_is_none(Bool2) of
+ true -> throw({fatal_fail, none});
false ->
- {Map2, Type2} = bind_guard(Arg2, Map1, Env, Eval, State),
- case t_is_none(t_inf(Type2, t_boolean())) of
- true -> throw({fail, none});
- false -> {Map2, True}
- end
+ NewMap = join_maps([Map1, Map2], Map),
+ NewType =
+ case {t_atom_vals(Bool1), t_atom_vals(Bool2)} of
+ {['true'] , ['true'] } -> t_atom(true);
+ {['false'], _ } -> t_atom(false);
+ {_ , ['false']} -> t_atom(false);
+ {_ , _ } -> t_boolean()
+ end,
+ {NewMap, NewType}
end
end.
handle_guard_or(Guard, Map, Env, Eval, State) ->
[Arg1, Arg2] = cerl:call_args(Guard),
case Eval of
- pos ->
+ pos ->
{Map1, Bool1} =
try bind_guard(Arg1, Map, Env, pos, State)
catch
@@ -2289,25 +2337,36 @@ handle_guard_or(Guard, Map, Env, Eval, State) ->
orelse
(t_is_atom(true, Bool2) andalso t_is_boolean(Bool1))) of
true -> {join_maps([Map1, Map2], Map), t_atom(true)};
- false -> throw({fail, none})
+ 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
- false -> throw({fail, none});
+ 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
- false -> throw({fail, none});
+ false -> signal_guard_fail(Eval, Guard, [Type1, Type2], State);
true -> {Map2, t_atom(false)}
end
end;
dont_know ->
- {Map1, Bool1} = bind_guard(Arg1, Map, Env, dont_know, State),
- {Map2, Bool2} = bind_guard(Arg2, Map, Env, dont_know, State),
- case t_is_boolean(Bool1) andalso t_is_boolean(Bool2) of
- true -> {join_maps([Map1, Map2], Map), t_sup(Bool1, Bool2)};
- false -> throw({fail, none})
+ {Map1, Type1} = bind_guard(Arg1, Map, Env, dont_know, State),
+ {Map2, Type2} = bind_guard(Arg2, Map, Env, dont_know, State),
+ Bool1 = t_inf(Type1, t_boolean()),
+ Bool2 = t_inf(Type2, t_boolean()),
+ case t_is_none(Bool1) orelse t_is_none(Bool2) of
+ true -> throw({fatal_fail, none});
+ false ->
+ NewMap = join_maps([Map1, Map2], Map),
+ NewType =
+ case {t_atom_vals(Bool1), t_atom_vals(Bool2)} of
+ {['false'], ['false']} -> t_atom(false);
+ {['true'] , _ } -> t_atom(true);
+ {_ , ['true'] } -> t_atom(true);
+ {_ , _ } -> t_boolean()
+ end,
+ {NewMap, NewType}
end
end.
@@ -2318,13 +2377,17 @@ handle_guard_not(Guard, Map, Env, Eval, State) ->
{Map1, Type} = bind_guard(Arg, Map, Env, pos, State),
case t_is_atom(true, Type) of
true -> {Map1, t_atom(false)};
- false -> throw({fail, none})
+ false ->
+ {_, Type0} = bind_guard(Arg, Map, Env, Eval, State),
+ signal_guard_fail(Eval, Guard, [Type0], State)
end;
pos ->
{Map1, Type} = bind_guard(Arg, Map, Env, neg, State),
case t_is_atom(false, Type) of
true -> {Map1, t_atom(true)};
- false -> throw({fail, none})
+ false ->
+ {_, Type0} = bind_guard(Arg, Map, Env, Eval, State),
+ signal_guard_fail(Eval, Guard, [Type0], State)
end;
dont_know ->
{Map1, Type} = bind_guard(Arg, Map, Env, dont_know, State),
@@ -2349,10 +2412,12 @@ bind_guard_list([G|Gs], Map, Env, Eval, State, Acc) ->
bind_guard_list([], Map, _Env, _Eval, _State, Acc) ->
{Map, lists:reverse(Acc)}.
--spec signal_guard_fail(cerl:c_call(), [erl_types:erl_type()], state()) ->
- no_return().
+-type eval() :: 'pos' | 'neg' | 'dont_know'.
-signal_guard_fail(Guard, ArgTypes, State) ->
+-spec signal_guard_fail(eval(), cerl:c_call(), [erl_types:erl_type()],
+ state()) -> no_return().
+
+signal_guard_fail(Eval, Guard, ArgTypes, 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)},
@@ -2361,11 +2426,17 @@ signal_guard_fail(Guard, ArgTypes, State) ->
true ->
[ArgType1, ArgType2] = ArgTypes,
[Arg1, Arg2] = Args,
- {guard_fail, [format_args_1([Arg1], [ArgType1], State),
- atom_to_list(F),
- format_args_1([Arg2], [ArgType2], State)]};
+ 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)]};
false ->
- mk_guard_msg(F, Args, ArgTypes, State)
+ mk_guard_msg(Eval, F, Args, ArgTypes, State)
end,
throw({fail, {Guard, Msg}}).
@@ -2380,20 +2451,25 @@ 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(cerl:c_call(), [erl_types:erl_type()], state()) ->
- no_return().
+-spec signal_guard_fatal_fail(eval(), cerl:c_call(), [erl_types:erl_type()],
+ state()) -> no_return().
-signal_guard_fatal_fail(Guard, ArgTypes, State) ->
+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(F, Args, ArgTypes, State),
+ Msg = mk_guard_msg(Eval, F, Args, ArgTypes, State),
throw({fatal_fail, {Guard, Msg}}).
-mk_guard_msg(F, Args, ArgTypes, State) ->
+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 -> {guard_fail, FArgs}
+ false ->
+ case Eval of
+ neg -> {neg_guard_fail, FArgs};
+ pos -> {guard_fail, FArgs};
+ dont_know -> {guard_fail, FArgs}
+ end
end.
bind_guard_case_clauses(Arg, Clauses, Map, Env, Eval, State) ->
@@ -2741,8 +2817,6 @@ state__new(Callgraph, Tree, Plt, Module, Records, BehaviourTranslations) ->
FunTab = init_fun_tab(Funs, dict:new(), TreeMap, Callgraph, Plt, Opaques),
Work = init_work([get_label(Tree)]),
Env = dict:store(top, map__new(), dict:new()),
- Opaques = erl_types:module_builtin_opaques(Module) ++
- erl_types:t_opaque_from_records(Records),
#state{callgraph = Callgraph, envs = Env, fun_tab = FunTab, opaques = Opaques,
plt = Plt, races = dialyzer_races:new(), records = Records,
warning_mode = false, warnings = [], work = Work, tree_map = TreeMap,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 00:24:10 +0000