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authorStavros Aronis <[email protected]>2013-02-12 14:51:24 +0100
committerStavros Aronis <[email protected]>2013-02-15 17:13:08 +0100
commit4aa359570f2ba59d3efee52cae52053284daf586 (patch)
treed84e718f74fb88ef4db8d8144630c6e0df4a85b1 /lib/hipe
parent499eef0cd693b2f96ec19148d2f6666c3df7d834 (diff)
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Support for types with the same name and different arity
Diffstat (limited to 'lib/hipe')
-rw-r--r--lib/hipe/cerl/erl_types.erl44
1 files changed, 18 insertions, 26 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 532b2e43cd..2a350c1c39 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -205,7 +205,7 @@
t_var/1,
t_var_name/1,
%% t_assign_variables_to_subtype/2,
- type_is_defined/3,
+ type_is_defined/4,
record_field_diffs_to_string/2,
subst_all_vars_to_any/1,
lift_list_to_pos_empty/1,
@@ -544,12 +544,12 @@ t_opaque_from_records(RecDict) ->
OpaqueRecDict =
dict:filter(fun(Key, _Value) ->
case Key of
- {opaque, _Name} -> true;
+ {opaque, _Name, _Arity} -> true;
_ -> false
end
end, RecDict),
OpaqueTypeDict =
- dict:map(fun({opaque, Name}, {Module, Type, ArgNames}) ->
+ dict:map(fun({opaque, Name, _Arity}, {Module, Type, ArgNames}) ->
case ArgNames of
[] ->
t_opaque(Module, Name, [], t_from_form(Type, RecDict));
@@ -707,8 +707,8 @@ t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args} = RemType,
MFA = {RemMod, Name, ArgsLen},
case sets:is_element(MFA, ET) of
true ->
- case lookup_type(Name, RemDict) of
- {type, {_Mod, Type, ArgNames}} when ArgsLen =:= length(ArgNames) ->
+ case lookup_type(Name, ArgsLen, RemDict) of
+ {type, {_Mod, Type, ArgNames}} ->
{NewType, NewCycle, NewRR} =
case can_unfold_more(RemType, C) of
true ->
@@ -726,7 +726,7 @@ t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args} = RemType,
false -> RT
end,
{RT1, RetRR};
- {opaque, {Mod, Type, ArgNames}} when ArgsLen =:= length(ArgNames) ->
+ {opaque, {Mod, Type, ArgNames}} ->
List = lists:zip(ArgNames, Args),
TmpVarDict = dict:from_list(List),
{Rep, NewCycle, NewRR} =
@@ -746,12 +746,6 @@ t_solve_remote_type(#remote{mod = RemMod, name = Name, args = Args} = RemType,
{t_from_form({opaque, -1, Name, {Mod, Args, RT1}},
RemDict, TmpVarDict),
RetRR};
- {type, _} ->
- Msg = io_lib:format("Unknown remote type ~w\n", [Name]),
- throw({error, Msg});
- {opaque, _} ->
- Msg = io_lib:format("Unknown remote opaque type ~w\n", [Name]),
- throw({error, Msg});
error ->
Msg = io_lib:format("Unable to find remote type ~w:~w()\n",
[RemMod, Name]),
@@ -3680,8 +3674,9 @@ t_from_form({type, _L, union, Args}, TypeNames, InOpaque, RecDict, VarDict) ->
{L, R} = list_from_form(Args, TypeNames, InOpaque, RecDict, VarDict),
{t_sup(L), R};
t_from_form({type, _L, Name, Args}, TypeNames, InOpaque, RecDict, VarDict) ->
- case lookup_type(Name, RecDict) of
- {type, {_Module, Type, ArgNames}} when length(Args) =:= length(ArgNames) ->
+ ArgsLen = length(Args),
+ case lookup_type(Name, ArgsLen, RecDict) of
+ {type, {_Module, Type, ArgNames}} ->
case can_unfold_more({type, Name}, TypeNames) of
true ->
List = lists:zipwith(
@@ -3701,7 +3696,7 @@ t_from_form({type, _L, Name, Args}, TypeNames, InOpaque, RecDict, VarDict) ->
end;
false -> {t_any(), [{type, Name}]}
end;
- {opaque, {Module, Type, ArgNames}} when length(Args) =:= length(ArgNames) ->
+ {opaque, {Module, Type, ArgNames}} ->
{Rep, Rret} =
case can_unfold_more({opaque, Name}, TypeNames) of
true ->
@@ -3730,12 +3725,9 @@ t_from_form({type, _L, Name, Args}, TypeNames, InOpaque, RecDict, VarDict) ->
RecDict, VarDict)
end,
{Tret, Rret};
- {type, _} ->
- throw({error, io_lib:format("Unknown type ~w\n", [Name])});
- {opaque, _} ->
- throw({error, io_lib:format("Unknown opaque type ~w\n", [Name])});
error ->
- throw({error, io_lib:format("Unable to find type ~w\n", [Name])})
+ Msg = io_lib:format("Unable to find type ~w/~w\n", [Name, ArgsLen]),
+ throw({error, Msg})
end;
t_from_form({opaque, _L, Name, {Mod, Args, Rep}}, _TypeNames, _InOpaque,
_RecDict, _VarDict) ->
@@ -3986,20 +3978,20 @@ lookup_record(Tag, Arity, RecDict) when is_atom(Tag) ->
error -> error
end.
-lookup_type(Name, RecDict) ->
- case dict:find({type, Name}, RecDict) of
+lookup_type(Name, Arity, RecDict) ->
+ case dict:find({type, Name, Arity}, RecDict) of
error ->
- case dict:find({opaque, Name}, RecDict) of
+ case dict:find({opaque, Name, Arity}, RecDict) of
error -> error;
{ok, Found} -> {opaque, Found}
end;
{ok, Found} -> {type, Found}
end.
--spec type_is_defined('type' | 'opaque', atom(), dict()) -> boolean().
+-spec type_is_defined('type' | 'opaque', atom(), arity(), dict()) -> boolean().
-type_is_defined(TypeOrOpaque, Name, RecDict) ->
- dict:is_key({TypeOrOpaque, Name}, RecDict).
+type_is_defined(TypeOrOpaque, Name, Arity, RecDict) ->
+ dict:is_key({TypeOrOpaque, Name, Arity}, RecDict).
can_unfold_more(TypeName, TypeNames) ->
Fun = fun(E, Acc) -> case E of TypeName -> Acc + 1; _ -> Acc end end,