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-rw-r--r--lib/stdlib/src/file_sorter.erl49
1 files changed, 24 insertions, 25 deletions
diff --git a/lib/stdlib/src/file_sorter.erl b/lib/stdlib/src/file_sorter.erl
index 687d72b4bd..3aeaff8dc4 100644
--- a/lib/stdlib/src/file_sorter.erl
+++ b/lib/stdlib/src/file_sorter.erl
@@ -1,18 +1,19 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. 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
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
%%
@@ -27,6 +28,8 @@
check/1, check/2,
keycheck/2, keycheck/3]).
+-dialyzer(no_improper_lists).
+
-include_lib("kernel/include/file.hrl").
-define(CHUNKSIZE, 16384).
@@ -304,7 +307,6 @@ options(Option) ->
options([{format, Format} | L], Opts) when Format =:= binary;
Format =:= term;
- is_function(Format),
is_function(Format, 1) ->
options(L, Opts#opts{format = Format});
options([{format, binary_term} | L], Opts) ->
@@ -323,7 +325,7 @@ options([{tmpdir, Dir} | L], Opts) ->
FileName ->
options(L, Opts#opts{tmpdir = {dir, FileName}})
end;
-options([{order, Fun} | L], Opts) when is_function(Fun), is_function(Fun, 2) ->
+options([{order, Fun} | L], Opts) when is_function(Fun, 2) ->
options(L, Opts#opts{order = Fun});
options([{order, Order} | L], Opts) when Order =:= ascending;
Order =:= descending ->
@@ -408,7 +410,7 @@ merge_terms_fun(RFun) ->
case RFun(read) of
end_of_input ->
eof;
- {Objs, NRFun} when is_function(NRFun), is_function(NRFun, 1) ->
+ {Objs, NRFun} when is_function(NRFun, 1) ->
{_, [], Ts, _} = fun_objs(Objs, [], 0, ?MAXSIZE, I, W),
{{I, Ts, ?CHUNKSIZE}, merge_terms_fun(NRFun)};
Error ->
@@ -424,13 +426,12 @@ merge_bins_fun(FileName) ->
Fun(A)
end.
-wrap_output_terms(term, OutFun, _Z) when is_function(OutFun),
- is_function(OutFun, 1) ->
+wrap_output_terms(term, OutFun, _Z) when is_function(OutFun, 1) ->
{fun_wterms(OutFun), true};
wrap_output_terms(term, File, Z) when File =/= undefined ->
{file_wterms(name, File, Z++[write]), false};
wrap_output_terms(_Format, Output, _Z) ->
- {Output, is_function(Output) and is_function(Output, 1)}.
+ {Output, is_function(Output, 1)}.
binary_term_fun() ->
fun binary_to_term/1.
@@ -1308,8 +1309,7 @@ infun(W) ->
{end_of_input, W1};
{end_of_input, Value} ->
{end_of_input, W1#w{inout_value = {value, Value}}};
- {Objs, NFun} when is_function(NFun),
- is_function(NFun, 1),
+ {Objs, NFun} when is_function(NFun, 1),
is_list(Objs) ->
{cont, W#w{in = NFun}, Objs};
Error ->
@@ -1332,7 +1332,7 @@ outfun(A, W) ->
try (W#w.out)(A) of
Reply when A =:= close ->
Reply;
- NF when is_function(NF), is_function(NF, 1) ->
+ NF when is_function(NF, 1) ->
W#w{out = NF};
Error ->
error(Error, W1)
@@ -1357,7 +1357,7 @@ is_keyposs([Bad | _]) ->
is_keyposs(Bad) ->
{badarg, Bad}.
-is_input(Fun) when is_function(Fun), is_function(Fun, 1) ->
+is_input(Fun) when is_function(Fun, 1) ->
{true, Fun};
is_input(Files) ->
is_files(Files).
@@ -1377,7 +1377,7 @@ is_files([], L) ->
is_files(Bad, _L) ->
{badarg, Bad}.
-maybe_output(Fun) when is_function(Fun), is_function(Fun, 1) ->
+maybe_output(Fun) when is_function(Fun, 1) ->
{true, Fun};
maybe_output(File) ->
case read_file_info(File) of
@@ -1425,8 +1425,8 @@ tmp_prefix1(Dir, TmpDirOpt) ->
U = "_",
Node = node(),
Pid = os:getpid(),
- {MSecs,Secs,MySecs} = now(),
- F = lists:concat(["fs_",Node,U,Pid,U,MSecs,U,Secs,U,MySecs,"."]),
+ Unique = erlang:unique_integer([positive]),
+ F = lists:concat(["fs_",Node,U,Pid,U,Unique,"."]),
TmpDir = case TmpDirOpt of
default ->
Dir;
@@ -1586,7 +1586,6 @@ fun_rterms(InFun) ->
(read) ->
case InFun(read) of
{Ts, NInFun} when is_list(Ts),
- is_function(NInFun),
is_function(NInFun, 1) ->
{to_bin(Ts, []), fun_rterms(NInFun)};
Else ->
@@ -1599,7 +1598,7 @@ fun_wterms(OutFun) ->
OutFun(close);
(L) ->
case OutFun(wterms_arg(L)) of
- NOutFun when is_function(NOutFun), is_function(NOutFun, 1) ->
+ NOutFun when is_function(NOutFun, 1) ->
fun_wterms(NOutFun);
Else ->
Else