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-rw-r--r--lib/hipe/cerl/erl_types.erl67
1 files changed, 30 insertions, 37 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 080d6936b2..5d2f3bead9 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -3239,15 +3239,16 @@ t_to_string(?function(?product(ArgList), Range), RecDict) ->
++ t_to_string(Range, RecDict) ++ ")";
t_to_string(?identifier(Set), _RecDict) ->
if Set =:= ?any -> "identifier()";
- true -> sequence([io_lib:format("~w()", [T])
- || T <- set_to_list(Set)], [], " | ")
+ true -> string:join([io_lib:format("~w()", [T])
+ || T <- set_to_list(Set)], " | ")
end;
t_to_string(?opaque(Set), _RecDict) ->
- sequence([case is_opaque_builtin(Mod, Name) of
- true -> io_lib:format("~w()", [Name]);
- false -> io_lib:format("~w:~w()", [Mod, Name])
- end
- || #opaque{mod = Mod, name = Name} <- set_to_list(Set)], [], " | ");
+ string:join([case is_opaque_builtin(Mod, Name) of
+ true -> io_lib:format("~w()", [Name]);
+ false -> io_lib:format("~w:~w()", [Mod, Name])
+ end
+ || #opaque{mod = Mod, name = Name} <- set_to_list(Set)],
+ " | ");
t_to_string(?matchstate(Pres, Slots), RecDict) ->
io_lib:format("ms(~s,~s)", [t_to_string(Pres, RecDict),
t_to_string(Slots,RecDict)]);
@@ -3321,14 +3322,15 @@ t_to_string(?number(?any, ?unknown_qual), _RecDict) -> "number()";
t_to_string(?product(List), RecDict) ->
"<" ++ comma_sequence(List, RecDict) ++ ">";
t_to_string(?remote(Set), RecDict) ->
- sequence([case Args =:= [] of
- true -> io_lib:format("~w:~w()", [Mod, Name]);
- false ->
- ArgString = comma_sequence(Args, RecDict),
- io_lib:format("~w:~w(~s)", [Mod, Name, ArgString])
- end
- || #remote{mod = Mod, name = Name, args = Args} <- set_to_list(Set)],
- [], " | ");
+ string:join([case Args =:= [] of
+ true -> io_lib:format("~w:~w()", [Mod, Name]);
+ false ->
+ ArgString = comma_sequence(Args, RecDict),
+ io_lib:format("~w:~w(~s)", [Mod, Name, ArgString])
+ end
+ || #remote{mod = Mod, name = Name, args = Args} <-
+ set_to_list(Set)],
+ " | ");
t_to_string(?tuple(?any, ?any, ?any), _RecDict) -> "tuple()";
t_to_string(?tuple(Elements, _Arity, ?any), RecDict) ->
"{" ++ comma_sequence(Elements, RecDict) ++ "}";
@@ -3350,7 +3352,7 @@ t_to_string(?var(Id), _RecDict) when is_integer(Id) ->
record_to_string(Tag, [_|Fields], FieldNames, RecDict) ->
FieldStrings = record_fields_to_string(Fields, FieldNames, RecDict, []),
- "#" ++ atom_to_list(Tag) ++ "{" ++ sequence(FieldStrings, [], ",") ++ "}".
+ "#" ++ atom_to_list(Tag) ++ "{" ++ string:join(FieldStrings, ",") ++ "}".
record_fields_to_string([F|Fs], [{FName, _DefType}|FDefs], RecDict, Acc) ->
NewAcc =
@@ -3376,7 +3378,7 @@ record_field_diffs_to_string(?tuple([_|Fs], Arity, Tag), RecDict) ->
{ok, FieldNames} = lookup_record(TagAtom, Arity-1, RecDict),
%% io:format("RecCElems = ~p\nRecTypes = ~p\n", [Fs, FieldNames]),
FieldDiffs = field_diffs(Fs, FieldNames, RecDict, []),
- sequence(FieldDiffs, [], " and ").
+ string:join(FieldDiffs, " and ").
field_diffs([F|Fs], [{FName, DefType}|FDefs], RecDict, Acc) ->
NewAcc =
@@ -3395,21 +3397,11 @@ comma_sequence(Types, RecDict) ->
true -> "_";
false -> t_to_string(T, RecDict)
end || T <- Types],
- sequence(List, ",").
+ string:join(List, ",").
union_sequence(Types, RecDict) ->
List = [t_to_string(T, RecDict) || T <- Types],
- sequence(List, " | ").
-
-sequence(List, Delimiter) ->
- sequence(List, [], Delimiter).
-
-sequence([], [], _Delimiter) ->
- [];
-sequence([T], Acc, _Delimiter) ->
- lists:flatten(lists:reverse([T|Acc]));
-sequence([T|Ts], Acc, Delimiter) ->
- sequence(Ts, [T ++ Delimiter|Acc], Delimiter).
+ string:join(List, " | ").
%%=============================================================================
%%
@@ -3851,14 +3843,14 @@ t_form_to_string({ann_type, _L, [Var, Type]}) ->
t_form_to_string({paren_type, _L, [Type]}) ->
io_lib:format("(~s)", [t_form_to_string(Type)]);
t_form_to_string({remote_type, _L, [{atom, _, Mod}, {atom, _, Name}, Args]}) ->
- ArgString = "(" ++ sequence(t_form_to_string_list(Args), ",") ++ ")",
+ ArgString = "(" ++ string:join(t_form_to_string_list(Args), ",") ++ ")",
io_lib:format("~w:~w", [Mod, Name]) ++ ArgString;
t_form_to_string({type, _L, arity, []}) -> "arity()";
t_form_to_string({type, _L, 'fun', []}) -> "fun()";
t_form_to_string({type, _L, 'fun', [{type, _, any, []}, Range]}) ->
"fun(...) -> " ++ t_form_to_string(Range);
t_form_to_string({type, _L, 'fun', [{type, _, product, Domain}, Range]}) ->
- "fun((" ++ sequence(t_form_to_string_list(Domain), ",") ++ ") -> "
+ "fun((" ++ string:join(t_form_to_string_list(Domain), ",") ++ ") -> "
++ t_form_to_string(Range) ++ ")";
t_form_to_string({type, _L, iodata, []}) -> "iodata()";
t_form_to_string({type, _L, iolist, []}) -> "iolist()";
@@ -3871,7 +3863,7 @@ t_form_to_string({type, _L, nonempty_list, [Type]}) ->
"[" ++ t_form_to_string(Type) ++ ",...]";
t_form_to_string({type, _L, nonempty_string, []}) -> "nonempty_string()";
t_form_to_string({type, _L, product, Elements}) ->
- "<" ++ sequence(t_form_to_string_list(Elements), ",") ++ ">";
+ "<" ++ string:join(t_form_to_string_list(Elements), ",") ++ ">";
t_form_to_string({type, _L, range, [From, To]} = Type) ->
case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of
{{integer, _, FromVal}, {integer, _, ToVal}} ->
@@ -3881,7 +3873,7 @@ t_form_to_string({type, _L, range, [From, To]} = Type) ->
t_form_to_string({type, _L, record, [{atom, _, Name}]}) ->
io_lib:format("#~w{}", [Name]);
t_form_to_string({type, _L, record, [{atom, _, Name}|Fields]}) ->
- FieldString = sequence(t_form_to_string_list(Fields), ","),
+ FieldString = string:join(t_form_to_string_list(Fields), ","),
io_lib:format("#~w{~s}", [Name, FieldString]);
t_form_to_string({type, _L, field_type, [{atom, _, Name}, Type]}) ->
io_lib:format("~w::~s", [Name, t_form_to_string(Type)]);
@@ -3889,9 +3881,9 @@ t_form_to_string({type, _L, term, []}) -> "term()";
t_form_to_string({type, _L, timeout, []}) -> "timeout()";
t_form_to_string({type, _L, tuple, any}) -> "tuple()";
t_form_to_string({type, _L, tuple, Args}) ->
- "{" ++ sequence(t_form_to_string_list(Args), ",") ++ "}";
+ "{" ++ string:join(t_form_to_string_list(Args), ",") ++ "}";
t_form_to_string({type, _L, union, Args}) ->
- sequence(t_form_to_string_list(Args), " | ");
+ string:join(t_form_to_string_list(Args), " | ");
t_form_to_string({type, _L, Name, []} = T) ->
try t_to_string(t_from_form(T))
catch throw:{error, _} -> atom_to_list(Name) ++ "()"
@@ -3909,7 +3901,8 @@ t_form_to_string({type, _L, binary, [X,Y]} = Type) ->
_ -> io_lib:format("Bad formed type ~w",[Type])
end;
t_form_to_string({type, _L, Name, List}) ->
- io_lib:format("~w(~s)", [Name, sequence(t_form_to_string_list(List), ",")]).
+ io_lib:format("~w(~s)",
+ [Name, string:join(t_form_to_string_list(List), ",")]).
t_form_to_string_list(List) ->
t_form_to_string_list(List, []).
@@ -4057,7 +4050,7 @@ set_to_string(Set) ->
true -> io_lib:write_string(atom_to_list(X), $'); % stupid emacs '
false -> io_lib:format("~w", [X])
end || X <- set_to_list(Set)],
- sequence(L, [], " | ").
+ string:join(L, " | ").
set_min([H|_]) -> H.