%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
%%
%% 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
%%
%% 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%
%%
-module(shell_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2]).
-export([forget/1, records/1, known_bugs/1, otp_5226/1, otp_5327/1,
otp_5435/1, otp_5195/1, otp_5915/1, otp_5916/1,
bs_match_misc_SUITE/1, bs_match_int_SUITE/1,
bs_match_tail_SUITE/1, bs_match_bin_SUITE/1,
bs_construct_SUITE/1,
refman_bit_syntax/1,
progex_bit_syntax/1, progex_records/1,
progex_lc/1, progex_funs/1,
otp_5990/1, otp_6166/1, otp_6554/1,
otp_7184/1, otp_7232/1, otp_8393/1, otp_10302/1]).
-export([ start_restricted_from_shell/1,
start_restricted_on_command_line/1,restricted_local/1]).
%% Internal export.
-export([otp_5435_2/0, prompt1/1, prompt2/1, prompt3/1, prompt4/1,
prompt5/1]).
%%
%% Define to run outside of test server
%%
%% -define(STANDALONE,1).
-ifdef(STANDALONE).
-define(config(A,B),config(A,B)).
-define(t,test_server).
-export([config/2]).
-define(line, noop, ).
config(priv_dir,_) ->
".".
-else.
-include_lib("common_test/include/ct.hrl").
-export([init_per_testcase/2, end_per_testcase/2]).
init_per_testcase(_Case, Config) ->
?line OrigPath = code:get_path(),
?line code:add_patha(?config(priv_dir,Config)),
[{orig_path,OrigPath} | Config].
end_per_testcase(_Case, Config) ->
?line OrigPath = ?config(orig_path,Config),
?line code:set_path(OrigPath),
?line application:unset_env(stdlib, restricted_shell),
?line (catch code:purge(user_default)),
?line (catch code:delete(user_default)),
ok.
-endif.
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap,{minutes,10}}].
all() ->
[forget, records, known_bugs, otp_5226, otp_5327,
otp_5435, otp_5195, otp_5915, otp_5916, {group, bits},
{group, refman}, {group, progex}, {group, tickets},
{group, restricted}].
groups() ->
[{restricted, [],
[start_restricted_from_shell,
start_restricted_on_command_line, restricted_local]},
{bits, [],
[bs_match_misc_SUITE, bs_match_tail_SUITE,
bs_match_bin_SUITE, bs_construct_SUITE]},
{refman, [], [refman_bit_syntax]},
{progex, [],
[progex_bit_syntax, progex_records, progex_lc,
progex_funs]},
{tickets, [],
[otp_5990, otp_6166, otp_6554, otp_7184,
otp_7232, otp_8393, otp_10302]}].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
-record(state, {bin, reply, leader, unic = latin1}).
%% Test that a restricted shell can be started from the normal shell.
start_restricted_from_shell(Config) when is_list(Config) ->
?line [{error,nofile}] = scan(<<"begin shell:start_restricted("
"nonexisting_module) end.">>),
?line Test = filename:join(?config(priv_dir, Config),
"test_restricted.erl"),
Contents = <<"-module(test_restricted).
-export([local_allowed/3, non_local_allowed/3]).
local_allowed(m,[],State) ->
{true,State};
local_allowed(ugly,[],_State) ->
non_conforming_reply;
local_allowed(_,_,State) ->
{false,State}.
non_local_allowed({shell,stop_restricted},[],State) ->
{true,State};
non_local_allowed({erlang,'+'},[_],State) ->
{true,State};
non_local_allowed({erlang,'-'},[_,_],_State) ->
non_conforming_reply;
non_local_allowed({h, d}, [Arg], S) ->
{{redirect, {erlang,hd}, [Arg]}, S};
non_local_allowed(_,_,State) ->
{false,State}.
">>,
?line ok = compile_file(Config, Test, Contents, []),
?line "exception exit: restricted shell starts now" =
comm_err(<<"begin shell:start_restricted("
"test_restricted) end.">>),
?line {ok, test_restricted} =
application:get_env(stdlib, restricted_shell),
?line "Module" ++ _ = t({<<"begin m() end.">>, utf8}),
?line "exception exit: restricted shell does not allow c(foo)" =
comm_err(<<"begin c(foo) end.">>),
?line "exception exit: restricted shell does not allow init:stop()" =
comm_err(<<"begin init:stop() end.">>),
?line "exception exit: restricted shell does not allow init:stop()" =
comm_err(<<"begin F = fun() -> init:stop() end, F() end.">>),
?line "exception error: an error occurred when evaluating an arithmetic expression" =
comm_err(<<"begin +a end.">>),
?line "exception exit: restricted shell does not allow a + b" =
comm_err(<<"begin a+b end.">>),
?line "exception exit: restricted shell does not allow - b" =
comm_err(<<"begin -b end.">>),
?line "exception exit: restricted shell does not allow 1 + 2" =
comm_err(<<"begin if atom(1 + 2> 0) -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow 1 + 2" =
comm_err(<<"begin if is_atom(1 + 2> 0) -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow - 2" =
comm_err(<<"begin if - 2 -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow - 2" =
comm_err(<<"begin if (- 2 > 0) andalso true -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow - 2" =
comm_err(<<"begin if (- 2 > 0) orelse true -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow 1 + 2" =
comm_err(<<"begin if 1 + 2 > 0 -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow 1 + 2" =
comm_err(<<"begin if erlang:is_atom(1 + 2> 0) -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow is_integer(1)" =
comm_err(<<"begin if is_integer(1) -> 1; true -> 2 end end.">>),
?line "exception exit: restricted shell does not allow is_integer(1)" =
comm_err(<<"begin if integer(1) -> 1; true -> 2 end end.">>),
?line "exception exit: "
"restricted shell module returned bad value non_conforming_reply" =
comm_err(<<"ugly().">>),
?line [one] = scan(<<"h:d([one,two]).">>),
?line "exception exit: "
"restricted shell module returned bad value non_conforming_reply" =
comm_err(<<"1 - 2.">>),
?line "exception exit: restricted shell stopped"=
comm_err(<<"begin shell:stop_restricted() end.">>),
?line undefined =
application:get_env(stdlib, restricted_shell),
ok.
%% Check restricted shell when started from the command line.
start_restricted_on_command_line(Config) when is_list(Config) ->
?line {ok,Node} = start_node(shell_suite_helper_1,
"-pa "++?config(priv_dir,Config)++
" -stdlib restricted_shell foo"),
?line "Warning! Restricted shell module foo not found: nofile"++_ =
t({Node, <<"begin m() end.">>}),
?line "exception exit: restricted shell does not allow m()" =
comm_err({Node, <<"begin m() end.">>}),
?line [ok] =
(catch scan({Node, <<"begin q() end.">>})),
?line test_server:stop_node(Node),
?line Test = filename:join(?config(priv_dir, Config),
"test_restricted2.erl"),
Contents = <<"-module(test_restricted2).
-export([local_allowed/3, non_local_allowed/3]).
local_allowed(m,[],State) ->
{true,State};
local_allowed(_,_,State) ->
{false,State}.
non_local_allowed({shell,stop_restricted},[],State) ->
{true,State};
non_local_allowed({erlang,node},[],State) ->
{true,State};
non_local_allowed(_,_,State) ->
{false,State}.
">>,
?line ok = compile_file(Config, Test, Contents, []),
?line {ok,Node2} = start_node(shell_suite_helper_2,
"-pa "++?config(priv_dir,Config)++
" -stdlib restricted_shell test_restricted2"),
?line "Module" ++ _ = t({Node2,<<"begin m() end.">>, utf8}),
?line "exception exit: restricted shell does not allow c(foo)" =
comm_err({Node2,<<"begin c(foo) end.">>}),
?line "exception exit: restricted shell does not allow init:stop()" =
comm_err({Node2,<<"begin init:stop() end.">>}),
?line "exception exit: restricted shell does not allow init:stop()" =
comm_err({Node2,<<"begin F = fun() -> init:stop() end, F() end.">>}),
?line [Node2] =
scan({Node2, <<"begin erlang:node() end.">>}),
?line [Node2] =
scan({Node2, <<"begin node() end.">>}),
?line "exception exit: restricted shell stopped"=
comm_err({Node2,<<"begin shell:stop_restricted() end.">>}),
?line [ok] =
scan({Node2, <<"begin q() end.">>}),
?line test_server:stop_node(Node2),
ok.
%% Tests calling local shell functions with spectacular arguments in
%% restricted shell.
restricted_local(Config) when is_list(Config) ->
?line [{error,nofile}] = scan(<<"begin shell:start_restricted("
"nonexisting_module) end.">>),
?line Test = filename:join(?config(priv_dir, Config),
"test_restricted_local.erl"),
Contents = <<"-module(test_restricted_local).
-export([local_allowed/3, non_local_allowed/3]).
local_allowed(m,[],State) ->
{true,State};
local_allowed(banan,_,State) ->
{true,State};
local_allowed(funkis,_,State) ->
{true,State};
local_allowed(c,_,State) ->
{true,State};
local_allowed(_,_,State) ->
{false,State}.
non_local_allowed({shell,stop_restricted},[],State) ->
{true,State};
non_local_allowed(_,_,State) ->
{false,State}.
">>,
?line ok = compile_file(Config, Test, Contents, []),
?line Test2 = filename:join(?config(priv_dir, Config),
"user_default.erl"),
Contents2 = <<"-module(user_default).
-export([funkis/1,apple/1]).
funkis(F) when is_function(F) ->
funkis;
funkis(_) ->
nofunkis.
apple(_) ->
apple.
">>,
?line ok = compile_file(Config, Test2, Contents2, []),
?line "exception exit: restricted shell starts now" =
comm_err(<<"begin shell:start_restricted("
"test_restricted_local) end.">>),
?line {ok, test_restricted_local} =
application:get_env(stdlib, restricted_shell),
?line "exception exit: restricted shell does not allow foo(" ++ _ =
comm_err(<<"begin F=fun() -> hello end, foo(F) end.">>),
?line "exception error: undefined shell command banan/1" =
comm_err(<<"begin F=fun() -> hello end, banan(F) end.">>),
?line "{error,"++_ = t(<<"begin F=fun() -> hello end, c(F) end.">>),
?line "exception exit: restricted shell does not allow l(" ++ _ =
comm_err(<<"begin F=fun() -> hello end, l(F) end.">>),
?line "exception error: variable 'F' is unbound" =
comm_err(<<"begin F=fun() -> hello end, f(F), F end.">>),
?line [funkis] =
scan(<<"begin F=fun() -> hello end, funkis(F) end.">>),
?line "exception exit: restricted shell does not allow apple(" ++ _ =
comm_err(<<"begin F=fun() -> hello end, apple(F) end.">>),
?line "exception exit: restricted shell stopped"=
comm_err(<<"begin shell:stop_restricted() end.">>),
?line undefined =
application:get_env(stdlib, restricted_shell),
?line (catch code:purge(user_default)),
?line true = (catch code:delete(user_default)),
ok.
%% f/0 and f/1.
forget(Config) when is_list(Config) ->
%% f/0
?line [ok] = scan(<<"begin f() end.">>),
?line "1: variable 'A' is unbound" =
comm_err(<<"A = 3, f(), A.">>),
?line [ok] = scan(<<"A = 3, A = f(), A.">>),
%% f/1
?line [ok] = scan(<<"begin f(A) end.">>),
?line "1: variable 'A' is unbound" =
comm_err(<<"A = 3, f(A), A.">>),
?line [ok] = scan(<<"A = 3, A = f(A), A.">>),
?line "exception error: no function clause matching call to f/1" =
comm_err(<<"f(a).">>),
ok.
%% Test of the record support. OTP-5063.
records(Config) when is_list(Config) ->
%% rd/2
?line [{attribute,_,record,{bar,_}},ok] =
scan(<<"rd(foo,{bar}),
rd(bar,{foo = (#foo{})#foo.bar}),
rl(bar).">>),
?line "variable 'R' is unbound" = % used to work (before OTP-5878, R11B)
exit_string(<<"rd(foo,{bar}),
R = #foo{},
rd(bar,{foo = R#foo.bar}).">>),
?line "exception error: no function clause matching call to rd/2" =
comm_err(<<"rd({foo},{bar}).">>),
?line "bad record declaration" = exit_string(<<"A = bar, rd(foo,A).">>),
?line [foo] = scan(<<"begin rd(foo,{bar}) end.">>),
?line "1: record foo undefined" =
comm_err(<<"begin rd(foo,{bar}), #foo{} end.">>),
?line ['f o o'] = scan(<<"rd('f o o', {bar}).">>),
?line [foo] = scan(<<"rd(foo,{bar}), rd(foo,{foo = #foo{}}).">>),
%% rf/0,1
?line [_, {attribute,_,record,{foo,_}},ok] =
scan(<<"rf('_'). rd(foo,{bar}),rl().">>),
?line "1: record foo undefined" =
comm_err(<<"rd(foo,{bar}), #foo{}, rf(foo), #foo{}.">>),
?line [ok,{foo,undefined}] =
scan(<<"rd(foo,{bar}), A = #foo{}, rf(foo). A.">>),
?line [_] = scan(<<"begin rf() end.">>),
?line [ok] = scan(<<"begin rf(foo) end.">>),
%% rp/1
?line "#foo{bar = undefined}.\nok.\n" =
t(<<"rd(foo,{bar}), rp(#foo{}).">>),
?line [{foo,3,4,3},ok] = scan(<<"rd(foo,{a = 3, b}), rp({foo,3,4,3}).">>),
?line "#foo{a = 12}.\nok.\n" = t(<<"rd(foo,{a = 3}), rp({foo,12}).">>),
?line [{[{foo}],12},ok] = scan(<<"rd(foo,{a = 3}), rp({[{foo}],12}).">>),
%% rr/1,2,3
MS = ?MODULE_STRING,
RR1 = "rr(" ++ MS ++ "). #state{}.",
?line "[state]\n"
"#state{bin = undefined,reply = undefined,leader = undefined,\n"
" unic = latin1}.\n" =
t(RR1),
RR2 = "rr(" ++ MS ++ ",[state]). #state{}.",
?line "[state]\n"
"#state{bin = undefined,reply = undefined,leader = undefined,\n"
" unic = latin1}.\n" =
t(RR2),
RR3 = "rr(" ++ MS ++ ",'_'). #state{}.",
?line "[state]\n"
"#state{bin = undefined,reply = undefined,leader = undefined,\n"
" unic = latin1}.\n" =
t(RR3),
RR4 = "rr(" ++ MS ++ ", '_', {d,test1}).",
?line [[state]] = scan(RR4),
Test = filename:join(?config(priv_dir, Config), "test.erl"),
Contents = <<"-module(test).
-record(state, {bin :: binary(),
reply = no,
leader = some :: atom()}).
-ifdef(test1).
-record(test1, {f}).
-endif.
-ifdef(test2).
-record(test2, {g}).
-endif.">>,
?line ok = file:write_file(Test, Contents),
RR5 = "rr(\"" ++ Test ++ "\", '_', {d,test1}), rl([test1,test2]).",
A1 = erl_anno:new(1),
[{attribute,A1,record,{test1,_}},ok] = scan(RR5),
RR6 = "rr(\"" ++ Test ++ "\", '_', {d,test2}), rl([test1,test2]).",
[{attribute,A1,record,{test2,_}},ok] = scan(RR6),
RR7 = "rr(\"" ++ Test ++
"\", '_', [{d,test1},{d,test2,17}]), rl([test1,test2]).",
[{attribute,A1,record,{test1,_}},{attribute,A1,record,{test2,_}},ok] =
scan(RR7),
?line PreReply = scan(<<"rr(prim_file).">>), % preloaded...
?line true = is_list(PreReply),
?line Dir = filename:join(?config(priv_dir, Config), "*.erl"),
?line RR8 = "rp(rr(\"" ++ Dir ++ "\")).",
?line [_,ok] = scan(RR8),
file:delete(Test),
RR1000 = "begin rr(" ++ MS ++ ") end.",
?line [_] = scan(RR1000),
RR1001 = "begin rr(" ++ MS ++ ", state) end.",
?line [_] = scan(RR1001),
RR1002 = "begin rr(" ++ MS ++ ", state,{i,'.'}) end.",
?line [_] = scan(RR1002),
?line [{error,nofile}] = scan(<<"rr(not_a_module).">>),
?line [{error,invalid_filename}] = scan(<<"rr({foo}).">>),
?line [[]] = scan(<<"rr(\"not_a_file\").">>),
%% using records
?line [2] = scan(<<"rd(foo,{bar}), record_info(size, foo).">>),
?line [true] = scan(<<"rd(foo,{bar}), is_record(#foo{}, foo).">>),
?line [true] = scan(<<"rd(foo,{bar}), erlang:is_record(#foo{}, foo).">>),
?line [true] = scan(<<"rd(foo,{bar}),
fun() when record(#foo{},foo) -> true end().">>),
?line [2] = scan(<<"rd(foo,{bar}), #foo.bar.">>),
?line "#foo{bar = 17}.\n" =
t(<<"rd(foo,{bar}), A = #foo{}, A#foo{bar = 17}.">>),
%% test of is_record/2 in lc
?line "[#foo{bar = 3}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"is_record(X, foo)].">>),
?line "[x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"not is_record(X, foo)].">>),
?line "[#foo{bar = 3}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin is_record(X, foo) end].">>),
?line "[x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin not is_record(X, foo) end].">>),
?line "[#foo{bar = 3},x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"is_record(X, foo) or not is_binary(X)].">>),
?line "[#foo{bar = 3},x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"not is_record(X, foo) or not is_binary(X)].">>),
?line "[#foo{bar = 3}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"is_record(X, foo) or is_reference(X)].">>),
?line "[x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"not is_record(X, foo) or is_reference(X)].">>),
?line "[#foo{bar = 3},x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin is_record(X, foo) or not is_binary(X) end].">>),
?line "[#foo{bar = 3},x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin not is_record(X, foo) or not is_binary(X) end].">>),
?line "[#foo{bar = 3}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin is_record(X, foo) or is_reference(X) end].">>),
?line "[x,[],{a,b}].\n" =
t(<<"rd(foo,{bar}), [X || X <- [#foo{bar=3},x,[],{a,b}],"
"begin not is_record(X, foo) or is_reference(X) end].">>),
?line [ok] =
scan(<<"rd(a,{}), is_record({a},a) andalso true, b().">>),
%% nested record defs
?line "#b{a = #a{}}.\n" = t(<<"rd(a,{}), rd(b, {a = #a{}}), #b{}.">>),
?line [ok,ok,ok] = scan(<<"rf('_'), rp(rp(rl(rf(rf(rf(rl())))))).">>),
ok.
%% Known bugs.
known_bugs(Config) when is_list(Config) ->
%% erl_eval:merge_bindings/2 cannot handle _removal_ of bindings.
?line [3] = scan(<<"A = 3, length(begin f(A), [3] end), A.">>),
ok.
%% OTP-5226. Wildcards accepted when reading BEAM files using rr/1,2,3.
otp_5226(Config) when is_list(Config) ->
Test1 = <<"-module(test1).
-record('_test1', {a,b}).">>,
Test2 = <<"-module(test2).
-record('_test2', {c,d}).">>,
?line File1 = filename("test1.erl", Config),
?line File2 = filename("test2.erl", Config),
?line Beam = filename("*.beam", Config),
?line ok = compile_file(Config, File1, Test1, [no_debug_info]),
?line ok = compile_file(Config, File2, Test2, [no_debug_info]),
RR = "rr(\"" ++ Beam ++ "\").",
?line [Recs] = scan(RR),
?line true = lists:member('_test1', Recs),
?line true = lists:member('_test2', Recs),
file:delete(filename("test1.beam", Config)),
file:delete(filename("test2.beam", Config)),
file:delete(File1),
file:delete(File2),
ok.
%% OTP-5226. Test of eval_bits, mostly.
otp_5327(Config) when is_list(Config) ->
?line "exception error: bad argument" =
comm_err(<<"<<\"hej\":default>>.">>),
?line <<"abc">> =
erl_parse:normalise({bin,1,[{bin_element,1,{string,1,"abc"},
default,default}]}),
?line [<<"abc">>] = scan(<<"<<(<<\"abc\">>):3/binary>>.">>),
?line [<<"abc">>] = scan(<<"<<(<<\"abc\">>)/binary>>.">>),
?line "exception error: bad argument" =
comm_err(<<"<<(<<\"abc\">>):4/binary>>.">>),
?line true = byte_size(hd(scan("<<3.14:64/float>>."))) =:= 8,
?line true = byte_size(hd(scan("<<3.14:32/float>>."))) =:= 4,
?line "exception error: bad argument" =
comm_err(<<"<<3.14:128/float>>.">>),
?line "exception error: bad argument" =
comm_err(<<"<<10:default>>.">>),
?line [<<98,1:1>>] = scan(<<"<<3:3,5:6>>.">>),
?line {'EXIT',{badarg,_}} =
(catch erl_parse:normalise({bin,1,[{bin_element,1,{integer,1,17},
{atom,1,all},
default}]})),
?line [<<-20/signed>>] = scan(<<"<<-20/signed>> = <<-20>>.">>),
?line [<<-300:16/signed>>] =
scan(<<"<<-300:16/signed>> = <<-300:16>>.">>),
?line [<<-1000:24/signed>>] =
scan(<<"<<-1000:24/signed>> = <<-1000:24>>.">>),
?line [<<-(1 bsl 29):32/signed>>] =
scan(<<"<<-(1 bsl 29):32/signed>> = <<-(1 bsl 29):32>>.">>),
?line "exception error: no match of right hand side value <<0,0,0>>" =
comm_err(<<"<<B:3/unit:7-binary,_/binary>> = <<0:24>>.">>),
?line true = [<<103133:64/float>>] =:=
scan(<<"<<103133:64/float>> = <<103133:64/float>>.">>),
?line true = [<<103133.0:64/float>>] =:=
scan(<<"<<103133.0:64/float>> = <<103133:64/float>>.">>),
?line true = [<<103133:64/float>>] =:= scan(<<"<<103133:64/float>>.">>),
Int = 17,
?line true = [<<Int:64/float>>] =:= scan(<<"Int = 17, <<Int:64/float>>.">>),
?line "exception error: no match of right hand side value" ++ _ =
comm_err(<<"<<103133:64/binary>> = <<103133:64/float>>.">>),
?line "exception error: interpreted function with arity 1 called with two arguments" =
comm_err(<<"(fun(X) -> X end)(a,b).">>),
?line {'EXIT', {{illegal_pattern,_}, _}} =
(catch evaluate("<<A:a>> = <<17:32>>.", [])),
C = <<"
<<A:4,B:4,C:4,D:4,E:4,F:4>> = <<\"hej\">>,
case <<7:4,A:4,B:4,C:4,D:4,E:4,F:4,3:4>> of
<<_:4,\"hej\",3:4>> -> 1;
_ -> 2
end.
">>,
?line 1 = evaluate(C, []),
%% unbound_var would be nicer...
?line {'EXIT',{{illegal_pattern,_},_}} =
(catch evaluate(<<"<<A:B>> = <<17:32>>.">>, [])),
%% undefined_bittype is turned into badmatch:
?line {'EXIT',{{badmatch,<<17:32>>},_}} =
(catch evaluate(<<"<<A/apa>> = <<17:32>>.">>, [])),
?line {'EXIT',_} =
(catch evaluate(<<"<<17/binary-unit:8-unit:16>>.">>, [])),
?line {'EXIT',_} =
(catch evaluate(<<"<<17:32/unsigned-signed>> = <<17:32>>.">>, [])),
?line {'EXIT',_} =
(catch evaluate(<<"<<17:32/unsigned-signed>>.">>, [])),
?line <<17:32>> = evaluate(<<"<<17:32/signed-signed>>.">>, []),
?line {'EXIT',_} =
(catch evaluate(<<"<<32/unit:8>>.">>, [])),
ok.
%% OTP-5435. sys_pre_expand not in the path.
otp_5435(Config) when is_list(Config) ->
?line true = <<103133:64/float>> =:=
evaluate(<<"<<103133:64/float>> = <<103133:64/float>>.">>, []),
?line true = <<103133.0:64/float>> =:=
evaluate(<<"<<103133.0:64/float>> = <<103133:64/float>>.">>, []),
?line true = is_alive(),
?line {ok, Node} = start_node(shell_SUITE_otp_5435),
?line ok = rpc:call(Node, ?MODULE, otp_5435_2, []),
test_server:stop_node(Node),
ok.
start_node(Name) ->
?line PA = filename:dirname(code:which(?MODULE)),
test_server:start_node(Name, slave, [{args, "-pa " ++ PA}]).
otp_5435_2() ->
?line true = code:del_path(compiler),
%% sys_pre_expand can no longer be found
%% OTP-5876. But erl_expand_records can!
?line [{attribute,_,record,{bar,_}},ok] =
scan(<<"rd(foo,{bar}),
rd(bar,{foo = (#foo{})#foo.bar}),
rl(bar).">>),
ok.
%% OTP-5195. QLC, mostly.
otp_5195(Config) when is_list(Config) ->
%% QLC. It was easier to put these cases here than in qlc_SUITE.
?line "[#a{b = undefined}].\n" =
t(<<"rd(a,{b}), qlc:e(qlc:q([X || X <- [#a{}],is_record(X, a)])).">>),
%% An experimental shell used to translate error tuples:
%% "(qlc) \"1: generated variable 'X' must not be used in "
%% "list expression\".\n" =
%% t(<<"qlc:q([X || X <- [{a}], Y <- [X]]).">>),
%% Same as last one (if the shell does not translate error tuples):
?line [{error,qlc,{1,qlc,{used_generator_variable,'X'}}}] =
scan(<<"qlc:q([X || X <- [{a}], Y <- [X]]).">>),
?line {error,qlc,{1,qlc,{used_generator_variable,'X'}}} =
evaluate(<<"qlc:q([X || X <- [{a}], Y <- [X]]).">>, []),
Ugly = <<"qlc:e(qlc:q([X || X <- qlc:append([[1,2,3],ugly()])])).">>,
?line "undefined shell command ugly/0" = error_string(Ugly),
?line {'EXIT',{undef,_}} = (catch evaluate(Ugly, [])),
V_1 = <<"qlc:e(qlc:q([X || X <- qlc:append([[1,2,3],v(-1)])])).">>,
?line "- 1: command not found" = comm_err(V_1),
?line {'EXIT', {undef,_}} = (catch evaluate(V_1, [])),
?line "1\n2\n3\n3.\n" =
t(<<"1. 2. 3. 3 = fun(A) when A =:= 2 -> v(3) end(v(2)).">>),
?line List4 = t(<<"[a,list]. A = [1,2]. "
"qlc:q([X || X <- qlc:append(A, v(1))]). "
"[1,2,a,list] = qlc:e(v(-1)).">>),
?line "[1,2,a,list].\n" = string:substr(List4, string:len(List4)-13),
ok.
%% OTP-5915. Strict record tests in guards.
otp_5915(Config) when is_list(Config) ->
C = <<"
rd(r, {a = 4,b}),
rd(r1, {a,b}),
rd(r2, {a = #r1{},b,c=length([1,2,3])}),
rd(r3, {a = fun(_) -> #r1{} end(1), b}),
foo = fun(A) when A#r1.a > A#r1.b -> foo end(#r1{b = 2}),
0 = fun(A) when A#r2.a -> 0 end(#r2{a = true}),
1 = fun(A) when (#r1{a = A})#r1.a > 2 -> 1 end(3),
2 = fun(N) when ((#r2{a = #r{a = 4}, b = length([a,b,c])})#r2.a)#r.a > N ->
2 end(2),
3 = fun(A) when (A#r2.a)#r1.a =:= 3 -> 3 end(#r2{a = #r1{a = 3}}),
ok = fun() ->
F = fun(A) when record(A#r.a, r1) -> 4;
(A) when record(A#r1.a, r1) -> 5
end,
5 = F(#r1{a = #r1{}}),
4 = F(#r{a = #r1{}}),
ok
end(),
3 = fun(A) when record(A#r1.a, r),
(A#r1.a)#r.a > 3 -> 3
end(#r1{a = #r{a = 4}}),
7 = fun(A) when record(A#r3.a, r1) -> 7 end(#r3{}),
[#r1{a = 2,b = 1}] =
fun() ->
[A || A <- [#r1{a = 1, b = 3},
#r2{a = 2,b = 1},
#r1{a = 2, b = 1}],
A#r1.a >
A#r1.b]
end(),
{[_],b} =
fun(L) ->
%% A is checked only once:
R1 = [{A,B} || A <- L, A#r1.a, B <- L, A#r1.b],
A = #r2{a = true},
%% A is checked again:
B = if A#r1.a -> a; true -> b end,
{R1,B}
end([#r1{a = true, b = true}]),
p = fun(A) when (A#r1.a =:= 2) or (A#r2.a =:= 1) -> o;
(_) -> p
end(#r1{a = 2}),
o = fun(A) when (A#r1.a =:= 2) orelse (A#r2.a =:= 1) -> o;
(_) -> p
end(#r1{a = 2}),
3 = fun(A) when A#r1.a > 3,
record(A, r1) -> 3
end(#r1{a = 5}),
ok = fun() ->
F = fun(A) when (A#r2.a =:= 1) orelse (A#r2.a) -> 2;
(A) when (A#r1.a =:= 1) orelse (A#r1.a) -> 1;
(A) when (A#r2.a =:= 2) andalso (A#r2.b) -> 3
end,
1 = F(#r1{a = 1}),
2 = F(#r2{a = true}),
3 = F(#r2{a = 2, b = true}),
ok
end(),
b = fun(A) when false or not (A#r.a =:= 1) -> a;
(_) -> b
end(#r1{a = 1}),
b = fun(A) when not (A#r.a =:= 1) or false -> a;
(_) -> b
end(#r1{a = 1}),
ok = fun() ->
F = fun(A) when not (A#r.a =:= 1) -> yes;
(_) -> no
end,
no = F(#r1{a = 2}),
yes = F(#r{a = 2}),
no = F(#r{a = 1}),
ok
end(),
a = fun(A) when record(A, r),
A#r.a =:= 1,
A#r.b =:= 2 ->a
end(#r{a = 1, b = 2}),
a = fun(A) when erlang:is_record(A, r),
A#r.a =:= 1,
A#r.b =:= 2 -> a
end(#r{a = 1, b = 2}),
a = fun(A) when is_record(A, r),
A#r.a =:= 1,
A#r.b =:= 2 -> a
end(#r{a = 1, b = 2}),
nop = fun(A) when (is_record(A, r1) and (A#r1.a > 3)) or (A#r2.a < 1) ->
japp;
(_) ->
nop
end(#r2{a = 0}),
nop = fun(A) when (A#r1.a > 3) or (A#r2.a < 1) -> japp;
(_) ->
nop
end(#r2{a = 0}),
ok = fun() ->
F = fun(A) when (A#r1.a =:= 2) or (A#r2.a =:= 1) -> o;
(_) -> p
end,
p = F(#r2{a = 1}),
p = F(#r1{a = 2}),
ok
end(),
ok = fun() ->
F = fun(A) when fail, A#r1.a; A#r1.a -> ab;
(_) -> bu
end,
ab = F(#r1{a = true}),
bu = F(#r2{a = true}),
ok
end(),
both = fun(A) when A#r.a, A#r.b -> both
end(#r{a = true, b = true}),
ok = fun() ->
F = fun(A, B) when ((A#r1.a) orelse (B#r2.a))
or (B#r2.b) or (A#r1.b) -> true;
(_, _) -> false
end,
true = F(#r1{a = false, b = false}, #r2{a = false, b = true}),
false = F(#r1{a = true, b = true}, #r1{a = false, b = true}),
ok
end(),
ok.">>,
[ok] = scan(C),
ok.
%% OTP-5916. erlang:is_record/3 allowed in guards.
otp_5916(Config) when is_list(Config) ->
C = <<"
rd(r1, {a,b}),
rd(r2, {a,b}),
true = if erlang:is_record(#r1{},r1,3) -> true; true -> false end,
false = if erlang:is_record(#r2{},r1,3) -> true; true -> false end,
true = if is_record(#r1{},r1,3) -> true; true -> false end,
false = if is_record(#r2{},r1,3) -> true; true -> false end,
ok.">>,
[ok] = scan(C),
ok.
%% OTP-5327. Adopted from parts of emulator/test/bs_match_misc_SUITE.erl.
bs_match_misc_SUITE(Config) when is_list(Config) ->
C = <<"
F1 = fun() -> 3.1415 end,
FOne = fun() -> 1.0 end,
Fcmp = fun(F1, F2) when (F1 - F2) / F2 < 0.0000001 -> ok end,
MakeSubBin = fun(Bin0) ->
Sz = size(Bin0),
Bin1 = <<37,Bin0/binary,38,39>>,
<<_:8,Bin:Sz/binary,_:8,_:8>> = Bin1,
Bin
end,
MatchFloat =
fun(Bin0, Fsz, I) ->
Bin = MakeSubBin(Bin0),
Bsz = size(Bin) * 8,
Tsz = Bsz - Fsz - I,
<<_:I,F:Fsz/float,_:Tsz>> = Bin,
F
end,
TFloat = fun() ->
F = F1(),
G = FOne(),
G = MatchFloat(<<63,128,0,0>>, 32, 0),
G = MatchFloat(<<63,240,0,0,0,0,0,0>>, 64, 0),
Fcmp(F, MatchFloat(<<F:32/float>>, 32, 0)),
Fcmp(F, MatchFloat(<<F:64/float>>, 64, 0)),
Fcmp(F, MatchFloat(<<1:1,F:32/float,127:7>>, 32, 1)),
Fcmp(F, MatchFloat(<<1:1,F:64/float,127:7>>, 64, 1)),
Fcmp(F, MatchFloat(<<1:13,F:32/float,127:3>>, 32, 13)),
Fcmp(F, MatchFloat(<<1:13,F:64/float,127:3>>, 64, 13))
end,
TFloat(),
F2 = fun() -> 2.7133 end,
MatchFloatLittle = fun(Bin0, Fsz, I) ->
Bin = MakeSubBin(Bin0),
Bsz = size(Bin) * 8,
Tsz = Bsz - Fsz - I,
<<_:I,F:Fsz/float-little,_:Tsz>> = Bin,
F
end,
LittleFloat = fun() ->
F = F2(),
G = FOne(),
G = MatchFloatLittle(<<0,0,0,0,0,0,240,63>>, 64, 0),
G = MatchFloatLittle(<<0,0,128,63>>, 32, 0),
Fcmp(F, MatchFloatLittle(<<F:32/float-little>>, 32, 0)),
Fcmp(F, MatchFloatLittle(<<F:64/float-little>>, 64, 0)),
Fcmp(F, MatchFloatLittle(<<1:1,F:32/float-little,127:7>>, 32, 1)),
Fcmp(F, MatchFloatLittle(<<1:1,F:64/float-little,127:7>>, 64, 1)),
Fcmp(F, MatchFloatLittle(<<1:13,F:32/float-little,127:3>>, 32, 13)),
Fcmp(F, MatchFloatLittle(<<1:13,F:64/float-little,127:3>>, 64, 13))
end,
LittleFloat(),
Sean1 = fun(<<B/binary>>) when size(B) < 4 -> small;
(<<1, _B/binary>>) -> large
end,
Sean = fun() ->
small = Sean1(<<>>),
small = Sean1(<<1>>),
small = Sean1(<<1,2>>),
small = Sean1(<<1,2,3>>),
large = Sean1(<<1,2,3,4>>),
small = Sean1(<<4>>),
small = Sean1(<<4,5>>),
small = Sean1(<<4,5,6>>),
{'EXIT',{function_clause,_}} = (catch Sean1(<<4,5,6,7>>))
end,
Sean(),
NativeBig = fun() ->
<<37.33:64/native-float>> = <<37.33:64/big-float>>,
<<3974:16/native-integer>> = <<3974:16/big-integer>>
end,
NativeLittle = fun() ->
<<37869.32343:64/native-float>> = <<37869.32343:64/little-float>>,
<<7974:16/native-integer>> = <<7974:16/little-integer>>
end,
Native = fun() ->
<<3.14:64/native-float>> = <<3.14:64/native-float>>,
<<333:16/native>> = <<333:16/native>>,
<<38658345:32/native>> = <<38658345:32/native>>,
case <<1:16/native>> of
<<0,1>> -> NativeBig();
<<1,0>> -> NativeLittle()
end
end,
Native(),
Split = fun(<<N:16,B:N/binary,T/binary>>) -> {B,T} end,
Split2 = fun(N, <<N:16,B:N/binary,T/binary>>) -> {B,T} end,
Split_2 = fun(<<N0:8,N:N0,B:N/binary,T/binary>>) -> {B,T} end,
Skip = fun(<<N:8,_:N/binary,T/binary>>) -> T end,
SizeVar = fun() ->
{<<45>>,<<>>} = Split(<<1:16,45>>),
{<<45>>,<<46,47>>} = Split(<<1:16,45,46,47>>),
{<<45,46>>,<<47>>} = Split(<<2:16,45,46,47>>),
{<<45,46,47>>,<<48>>} = Split_2(<<16:8,3:16,45,46,47,48>>),
{<<45,46>>,<<47>>} = Split2(2, <<2:16,45,46,47>>),
{'EXIT',{function_clause,_}} =
(catch Split2(42, <<2:16,45,46,47>>)),
<<\"cdef\">> = Skip(<<2:8,\"abcdef\">>)
end,
SizeVar(),
Wcheck = fun(<<A>>) when A==3-> ok1;
(<<_,_:2/binary>>) -> ok2;
(<<_>>) -> ok3;
(Other) -> {error,Other}
end,
Wiger = fun() ->
ok1 = Wcheck(<<3>>),
ok2 = Wcheck(<<1,2,3>>),
ok3 = Wcheck(<<4>>),
{error,<<1,2,3,4>>} = Wcheck(<<1,2,3,4>>),
{error,<<>>} = Wcheck(<<>>)
end,
Wiger(),
ok.
">>,
[ok] = scan(C),
ok = evaluate(C, []).
%% This one is not run during night builds since it takes several minutes.
%% OTP-5327. Adopted from emulator/test/bs_match_int_SUITE.erl.
bs_match_int_SUITE(Config) when is_list(Config) ->
C = <<"
FunClause = fun({'EXIT',{function_clause,_}}) -> ok end,
Mkbin = fun(L) when list(L) -> list_to_binary(L) end,
GetInt1 = fun(<<I:0>>) -> I;
(<<I:8>>) -> I;
(<<I:16>>) -> I;
(<<I:24>>) -> I;
(<<I:32>>) -> I
end,
GetInt2 = fun(Bin0, I, F) when size(Bin0) < 4 ->
Bin = <<0,Bin0/binary>>,
I = GetInt1(Bin),
F(Bin, I, F);
(_, I, _F) -> I
end,
GetInt = fun(Bin) ->
I = GetInt1(Bin),
GetInt2(Bin, I, GetInt2)
end,
Cmp128 = fun(<<I:128>>, I) -> equal;
(_, _) -> not_equal
end,
Uint2 = fun([H|T], Acc, F) -> F(T, Acc bsl 8 bor H, F);
([], Acc, _F) -> Acc
end,
Uint = fun(L) -> Uint2(L, 0, Uint2) end,
Integer = fun() ->
0 = GetInt(Mkbin([])),
0 = GetInt(Mkbin([0])),
42 = GetInt(Mkbin([42])),
255 = GetInt(Mkbin([255])),
256 = GetInt(Mkbin([1,0])),
257 = GetInt(Mkbin([1,1])),
258 = GetInt(Mkbin([1,2])),
258 = GetInt(Mkbin([1,2])),
65534 = GetInt(Mkbin([255,254])),
16776455 = GetInt(Mkbin([255,253,7])),
4245492555 = GetInt(Mkbin([253,13,19,75])),
4294967294 = GetInt(Mkbin([255,255,255,254])),
4294967295 = GetInt(Mkbin([255,255,255,255])),
Eight = [200,1,19,128,222,42,97,111],
Cmp128(Eight, Uint(Eight)),
FunClause(catch GetInt(Mkbin(lists:seq(1,5))))
end,
Integer(),
Sint = fun(Bin) ->
case Bin of
<<I:8/signed>> -> I;
<<I:8/signed,_:3,_:5>> -> I;
Other -> {no_match,Other}
end
end,
SignedInteger = fun() ->
{no_match,_} = Sint(Mkbin([])),
{no_match,_} = Sint(Mkbin([1,2,3])),
127 = Sint(Mkbin([127])),
-1 = Sint(Mkbin([255])),
-128 = Sint(Mkbin([128])),
42 = Sint(Mkbin([42,255])),
127 = Sint(Mkbin([127,255]))
end,
SignedInteger(),
Dynamic5 = fun(Bin, S1, S2, A, B) ->
case Bin of
<<A:S1,B:S2>> ->
% io:format(\"~p ~p ~p ~p~n\", [S1,S2,A,B]),
ok;
_Other -> erlang:error(badmatch, [Bin,S1,S2,A,B])
end
end,
Dynamic2 = fun(Bin, S1, F) when S1 >= 0 ->
S2 = size(Bin) * 8 - S1,
Dynamic5(Bin, S1, S2, (1 bsl S1) - 1, (1 bsl S2) - 1),
F(Bin, S1-1, F);
(_, _, _) -> ok
end,
Dynamic = fun(Bin, S1) ->
Dynamic2(Bin, S1, Dynamic2)
end,
Dynamic(Mkbin([255]), 8),
Dynamic(Mkbin([255,255]), 16),
Dynamic(Mkbin([255,255,255]), 24),
Dynamic(Mkbin([255,255,255,255]), 32),
BigToLittle4 =
fun([B0,B1,B2,B3,B4,B5,B6,B7|T], N, Acc, F) when N >= 8 ->
F(T, N-8, [B0,B1,B2,B3,B4,B5,B6,B7|Acc], F);
(List, N, Acc, _F) -> lists:sublist(List, 1, N) ++ Acc
end,
BigToLittle =
fun(List, N) -> BigToLittle4(List, N, [], BigToLittle4) end,
ReversedSublist =
fun(_List, 0, Acc, _F) -> Acc;
([H|T], N, Acc, F) -> F(T, N-1, [H|Acc], F)
end,
TwoComplementAndReverse =
fun([H|T], Carry, Acc, F) ->
Sum = 1-H+Carry,
F(T, Sum div 2, [Sum rem 2|Acc], F);
([], Carry, Acc, _F) -> [Carry|Acc]
end,
MakeInt = fun(_List, 0, Acc, _F) -> Acc;
([H|T], N, Acc, F) -> F(T, N-1, Acc bsl 1 bor H, F)
end,
MakeSignedInt =
fun(_List, 0) -> 0;
([0|_]=List, N) -> MakeInt(List, N, 0, MakeInt);
([1|_]=List0, N) ->
List1 = ReversedSublist(List0, N, [], ReversedSublist),
List2 = TwoComplementAndReverse(List1, 1, [],
TwoComplementAndReverse),
-MakeInt(List2, length(List2), 0, MakeInt)
end,
BitsToList =
fun([H|T], 0, F) -> F(T, 16#80, F);
([H|_]=List, Mask, F) ->
[case H band Mask of
0 -> 0;
_ -> 1
end | F(List, Mask bsr 1, F)];
([], _, _F) -> []
end,
MoreDynamic3 =
fun(Action, Bin, List, Bef, Aft, F) when Bef =< Aft ->
Action(Bin, List, Bef, Aft-Bef),
F(Action, Bin, List, Bef, Aft-1, F);
(_, _, _, _, _, _) -> ok
end,
MoreDynamic2 =
fun(Action, Bin, [_|T]=List, Bef, F) ->
MoreDynamic3(Action, Bin, List, Bef, size(Bin)*8,
MoreDynamic3),
F(Action, Bin, T, Bef+1, F);
(_, _, [], _, _F) -> ok
end,
MoreDynamic1 =
fun(Action, Bin) ->
BitList = BitsToList(binary_to_list(Bin),16#80,BitsToList),
MoreDynamic2(Action, Bin, BitList, 0, MoreDynamic2)
end,
MoreDynamic = fun() ->
% Unsigned big-endian numbers.
Unsigned = fun(Bin, List, SkipBef, N) ->
SkipAft = 8*size(Bin) - N - SkipBef,
<<_:SkipBef,Int:N,_:SkipAft>> = Bin,
Int = MakeInt(List, N, 0, MakeInt)
end,
MoreDynamic1(Unsigned, erlang:md5(Mkbin([42]))),
%% Signed big-endian numbers.
Signed = fun(Bin, List, SkipBef, N) ->
SkipAft = 8*size(Bin) - N - SkipBef,
<<_:SkipBef,Int:N/signed,_:SkipAft>> = Bin,
case MakeSignedInt(List, N) of
Int -> ok;
Other ->
io:format(\"Bin = ~p,\", [Bin]),
io:format(\"SkipBef = ~p, N = ~p\",
[SkipBef,N]),
io:format(\"Expected ~p, got ~p\",
[Int,Other])
end
end,
MoreDynamic1(Signed, erlang:md5(Mkbin([43]))),
%% Unsigned little-endian numbers.
UnsLittle = fun(Bin, List, SkipBef, N) ->
SkipAft = 8*size(Bin) - N - SkipBef,
<<_:SkipBef,Int:N/little,_:SkipAft>> = Bin,
Int = MakeInt(BigToLittle(List, N), N, 0,
MakeInt)
end,
MoreDynamic1(UnsLittle, erlang:md5(Mkbin([44]))),
%% Signed little-endian numbers.
SignLittle = fun(Bin, List, SkipBef, N) ->
SkipAft = 8*size(Bin) - N - SkipBef,
<<_:SkipBef,Int:N/signed-little,_:SkipAft>> = Bin,
Little = BigToLittle(List, N),
Int = MakeSignedInt(Little, N)
end,
MoreDynamic1(SignLittle, erlang:md5(Mkbin([45])))
end,
MoreDynamic(),
ok.
">>,
[ok] = scan(C),
ok = evaluate(C, []).
%% OTP-5327. Adopted from emulator/test/bs_match_tail_SUITE.erl.
bs_match_tail_SUITE(Config) when is_list(Config) ->
C = <<"
GetTailUsed = fun(<<A:1,T/binary>>) -> {A,T} end,
GetTailUnused = fun(<<A:15,_/binary>>) -> A end,
GetDynTailUsed = fun(Bin, Sz) ->
<<A:Sz,T/binary>> = Bin,
{A,T}
end,
GetDynTailUnused = fun(Bin, Sz) ->
<<A:Sz,_/binary>> = Bin,
A
end,
Mkbin = fun(L) when list(L) -> list_to_binary(L) end,
TestZeroTail = fun(<<A:8>>) -> A end,
TestZeroTail2 = fun(<<_A:4,_B:4>>) -> ok end,
ZeroTail = fun() ->
7 = (catch TestZeroTail(Mkbin([7]))),
{'EXIT',{function_clause,_}} =
(catch TestZeroTail(Mkbin([1,2]))),
{'EXIT',{function_clause,_}} =
(catch TestZeroTail2(Mkbin([1,2,3])))
end,
ZeroTail(),
AlGetTailUsed = fun(<<A:16,T/binary>>) -> {A,T} end,
AlGetTailUnused = fun(<<A:16,_/binary>>) -> A end,
Aligned = fun() ->
Tail1 = Mkbin([]),
{258,Tail1} = AlGetTailUsed(Mkbin([1,2])),
Tail2 = Mkbin(lists:seq(1, 127)),
{35091,Tail2} = AlGetTailUsed(Mkbin([137,19|Tail2])),
64896 = AlGetTailUnused(Mkbin([253,128])),
64895 = AlGetTailUnused(Mkbin([253,127|lists:seq(42, 255)])),
Tail3 = Mkbin(lists:seq(0, 19)),
{0,Tail1} = GetDynTailUsed(Tail1, 0),
{0,Tail3} = GetDynTailUsed(Mkbin([Tail3]), 0),
{73,Tail3} = GetDynTailUsed(Mkbin([73|Tail3]), 8),
0 = GetDynTailUnused(Mkbin([]), 0),
233 = GetDynTailUnused(Mkbin([233]), 8),
23 = GetDynTailUnused(Mkbin([23,22,2]), 8)
end,
Aligned(),
UnAligned = fun() ->
{'EXIT',{function_clause,_}} =
(catch GetTailUsed(Mkbin([42]))),
{'EXIT',{{badmatch,_},_}} =
(catch GetDynTailUsed(Mkbin([137]), 3)),
{'EXIT',{function_clause,_}} =
(catch GetTailUnused(Mkbin([42,33]))),
{'EXIT',{{badmatch,_},_}} =
(catch GetDynTailUnused(Mkbin([44]), 7))
end,
UnAligned(),
ok.
">>,
[ok] = scan(C),
ok = evaluate(C, []).
%% OTP-5327. Adopted from emulator/test/bs_match_bin_SUITE.erl.
bs_match_bin_SUITE(Config) when is_list(Config) ->
ByteSplitBinary =
<<"ByteSplit =
fun(L, B, Pos, Fun) when Pos >= 0 ->
Sz1 = Pos,
Sz2 = size(B) - Pos,
<<B1:Sz1/binary,B2:Sz2/binary>> = B,
B1 = list_to_binary(lists:sublist(L, 1, Pos)),
B2 = list_to_binary(lists:nthtail(Pos, L)),
Fun(L, B, Pos-1, Fun);
(L, B, _, _Fun) -> ok
end,
Mkbin = fun(L) when list(L) -> list_to_binary(L) end,
L = lists:seq(0, 57),
B = Mkbin(L),
ByteSplit(L, B, size(B), ByteSplit),
Id = fun(I) -> I end,
MakeUnalignedSubBinary =
fun(Bin0) ->
Bin1 = <<0:3,Bin0/binary,31:5>>,
Sz = size(Bin0),
<<0:3,Bin:Sz/binary,31:5>> = Id(Bin1),
Bin
end,
Unaligned = MakeUnalignedSubBinary(B),
ByteSplit(L, Unaligned, size(Unaligned), ByteSplit),
ok.
">>,
[ok] = scan(ByteSplitBinary),
ok = evaluate(ByteSplitBinary, []),
BitSplitBinary =
<<"Mkbin = fun(L) when list(L) -> list_to_binary(L) end,
MakeInt =
fun(List, 0, Acc, _F) -> Acc;
([H|T], N, Acc, F) -> F(T, N-1, Acc bsl 1 bor H, F)
end,
MakeBinFromList =
fun(List, 0, _F) -> Mkbin([]);
(List, N, F) ->
list_to_binary([MakeInt(List, 8, 0, MakeInt),
F(lists:nthtail(8, List), N-8, F)])
end,
BitSplitBinary3 =
fun(Action, Bin, List, Bef, Aft, F) when Bef =< Aft ->
Action(Bin, List, Bef, (Aft-Bef) div 8 * 8),
F(Action, Bin, List, Bef, Aft-8, F);
(_, _, _, _, _, _) -> ok
end,
BitSplitBinary2 =
fun(Action, Bin, [_|T]=List, Bef, F) ->
BitSplitBinary3(Action, Bin, List, Bef, size(Bin)*8,
BitSplitBinary3),
F(Action, Bin, T, Bef+1, F);
(Action, Bin, [], Bef, F) -> ok
end,
BitsToList =
fun([H|T], 0, F) -> F(T, 16#80, F);
([H|_]=List, Mask, F) ->
[case H band Mask of
0 -> 0;
_ -> 1
end | F(List, Mask bsr 1, F)];
([], _, _F) -> []
end,
BitSplitBinary1 =
fun(Action, Bin) ->
BitList = BitsToList(binary_to_list(Bin), 16#80,
BitsToList),
BitSplitBinary2(Action, Bin, BitList, 0, BitSplitBinary2)
end,
Fun = fun(Bin, List, SkipBef, N) ->
SkipAft = 8*size(Bin) - N - SkipBef,
<<I1:SkipBef,OutBin:N/binary-unit:1,I2:SkipAft>> = Bin,
OutBin = MakeBinFromList(List, N, MakeBinFromList)
end,
BitSplitBinary1(Fun, erlang:md5(<<1,2,3>>)),
Id = fun(I) -> I end,
MakeUnalignedSubBinary =
fun(Bin0) ->
Bin1 = <<0:3,Bin0/binary,31:5>>,
Sz = size(Bin0),
<<0:3,Bin:Sz/binary,31:5>> = Id(Bin1),
Bin
end,
BitSplitBinary1(Fun, MakeUnalignedSubBinary(erlang:md5(<<1,2,3>>))),
ok.
">>,
[ok] = scan(BitSplitBinary),
ok = evaluate(BitSplitBinary, []).
-define(FAIL(Expr), "{'EXIT',{badarg,_}} = (catch " ??Expr ")").
-define(COF(Int0),
"(fun(Int) ->
true = <<Int:32/float>> =:= <<(float(Int)):32/float>>,
true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
end)(Nonliteral(" ??Int0 ")),
true = <<" ??Int0 ":32/float>> =:= <<(float("??Int0")):32/float>>,
true = <<" ??Int0 ":64/float>> =:= <<(float("??Int0")):64/float>>").
-define(COF64(Int0),
"(fun(Int) ->
true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
end)(Nonliteral(" ??Int0 ")),
true = <<" ??Int0 ":64/float>> =:= <<(float("??Int0")):64/float>>").
%% OTP-5327. Adopted from parts of emulator/test/bs_construct_SUITE.erl.
bs_construct_SUITE(Config) when is_list(Config) ->
C1 = <<"
Testf_1 = fun(W, B) -> "
?FAIL(<<42:W>>) ","
?FAIL(<<3.14:W/float>>) ","
?FAIL(<<B:W/binary>>) "
end,
TestF = fun() -> "
?FAIL(<<3.14>>) ","
?FAIL(<<<<1,2>>>>) ","
?FAIL(<<2.71/binary>>) ","
?FAIL(<<24334/binary>>) ","
?FAIL(<<24334344294788947129487129487219847/binary>>) ","
?FAIL(<<<<1,2,3>>/float>>) ",
%% Negative field widths.
Testf_1(-8, <<1,2,3,4,5>>),"
?FAIL(<<42:(-16)>>) ","
?FAIL(<<3.14:(-8)/float>>) ","
?FAIL(<<<<23,56,0,2>>:(-16)/binary>>) ","
?FAIL(<<<<23,56,0,2>>:(2.5)/binary>>) ","
?FAIL(<<<<23,56,0,2>>:(anka)>>) "
end,
TestF(),
NotUsed1 = fun(I, BinString) -> <<I:32,BinString/binary>>, ok end,
NotUsed2 = fun(I, Sz) -> <<I:Sz>>, ok end,
NotUsed3 = fun(I) -><<I:(-8)>>, ok end,
NotUsed = fun() ->
ok = NotUsed1(3, <<\"dum\">>),
{'EXIT',{badarg,_}} = (catch NotUsed1(3, \"dum\")), "
?FAIL(NotUsed2(444, -2)) ","
?FAIL(NotUsed2(444, anka)) ","
?FAIL(NotUsed3(444)) "
end,
NotUsed(),
InGuard3 = fun(Bin, A, B) when <<A:13,B:3>> == Bin -> 1;
(Bin, A, B) when <<A:16,B/binary>> == Bin -> 2;
(Bin, A, B) when <<A:14,B/float,3:2>> == Bin -> 3;
(Bin, A, B) when {a,b,<<A:14,B/float,3:2>>} == Bin ->
cant_happen;
(_, _, _) -> nope
end,
InGuard = fun() ->
1 = InGuard3(<<16#74ad:16>>, 16#e95, 5),
2 = InGuard3(<<16#3A,16#F7,\"hello\">>, 16#3AF7, <<\"hello\">>),
3 = InGuard3(<<16#FBCD:14,3.1415/float,3:2>>, 16#FBCD, 3.1415),
nope = InGuard3(<<1>>, 42, b),
nope = InGuard3(<<1>>, a, b),
nope = InGuard3(<<1,2>>, 1, 1),
nope = InGuard3(<<4,5>>, 1, 2.71),
nope = InGuard3(<<4,5>>, 1, <<12,13>>)
end,
InGuard(),
Nonliteral = fun(X) -> X end,
CoerceToFloat = fun() -> "
?COF(0) ","
?COF(-1) ","
?COF(1) ","
?COF(42) ","
?COF(255) ","
?COF(-255) ","
?COF64(298748888888888888888888888883478264866528467367364766666666666666663) ","
?COF64(-367546729879999999999947826486652846736736476555566666663) "
end,
CoerceToFloat(),
ok.
">>,
[ok] = scan(C1),
ok = evaluate(C1, []),
%% There is another one, lib/compiler/test/bs_construct_SUITE.erl...
C2 = <<"
I = fun(X) -> X end,
Fail = fun() ->
I_minus_777 = I(-777),
I_minus_2047 = I(-2047),
%% One negative field size, but the sum of field sizes will be 1 byte.
%% Make sure that we reject that properly.
{'EXIT',{badarg,_}} = (catch <<I_minus_777:2048/unit:8,
57:I_minus_2047/unit:8>>),
%% Same thing, but use literals.
{'EXIT',{badarg,_}} = (catch <<I_minus_777:2048/unit:8,
57:(-2047)/unit:8>>),
%% Bad alignment.
I_one = I(1),
<<1:1>> = <<2375:I_one>>,
<<3:2>> = <<45:1,2375:I_one>>,
<<14:4>> = <<45:1,2375:I_one,918:2>>,
<<118:7>> = <<45:1,2375:I_one,918:5>>,
%% Not numbers.
{'EXIT',{badarg,_}} = (catch <<45:(I(not_a_number))>>),
{'EXIT',{badarg,_}} = (catch <<13:8,45:(I(not_a_number))>>),
%% Unaligned sizes.
BadSz = I(7),
<<2:4>> = <<34:4>>,
<<34:7>> = <<34:BadSz>>,
[] = [X || {X} <- [], X == <<3:BadSz>>],
[] = [X || {X} <- [], X == <<3:4>>]
end,
Fail(),
FloatBin1 = fun(F) ->
{<<1,2,3>>,F+3.0}
end,
FloatBin = fun() ->
%% Some more coverage.
{<<1,2,3>>,7.0} = FloatBin1(4)
end,
FloatBin(),
ok.
">>,
[ok] = scan(C2),
ok = evaluate(C2, []).
evaluate(B, Vars) when is_binary(B) ->
evaluate(binary_to_list(B), Vars);
evaluate(Str, Vars) ->
{ok,Tokens,_} =
erl_scan:string(Str),
{ok, Exprs} = erl_parse:parse_exprs(Tokens),
case erl_eval:exprs(Exprs, Vars, none) of
{value, Result, _} ->
Result
end.
%% Bit syntax examples from the Reference Manual. OTP-5237.
refman_bit_syntax(Config) when is_list(Config) ->
%% Reference Manual "Bit Syntax Expressions"
?line Bin1 = <<1,17,42>>,
?line true = [1,17,42] =:= binary_to_list(Bin1),
?line Bin2 = <<"abc">>,
?line true = "abc" =:= binary_to_list(Bin2),
?line Bin3 = <<1,17,42:16>>,
?line true = [1,17,0,42] =:= binary_to_list(Bin3),
?line <<_A,_B,C:16>> = <<1,17,42:16>>,
?line true = C =:= 42,
?line <<D:16,_E,F>> = <<1,17,42:16>>,
?line true = D =:= 273,
?line true = F =:= 42,
<<_G,H/binary>> = <<1,17,42:16>>,
?line true = H =:= <<17,0,42>>,
?line [ok] =
scan(<<"Bin1 = <<1,17,42>>,
true = [1,17,42] =:= binary_to_list(Bin1),
Bin2 = <<\"abc\">>,
true = \"abc\" =:= binary_to_list(Bin2),
Bin3 = <<1,17,42:16>>,
true =
[1,17,0,42] =:= binary_to_list(Bin3),
<<A,B,C:16>> = <<1,17,42:16>>,
true = C =:= 42,
<<D:16,E,F>> = <<1,17,42:16>>,
true = D =:= 273,
true = F =:= 42,
<<G,H/binary>> = <<1,17,42:16>>,
true = H =:= <<17,0,42>>,
ok.">>),
%% Binary comprehensions.
?line <<2,4,6>> = << << (X*2) >> || <<X>> <= << 1,2,3 >> >>,
ok.
-define(IP_VERSION, 4).
-define(IP_MIN_HDR_LEN, 5).
%% Bit syntax examples from Programming Examples. OTP-5237.
progex_bit_syntax(Config) when is_list(Config) ->
Bin11 = <<1, 17, 42>>,
true = [1, 17, 42] =:= binary_to_list(Bin11),
Bin12 = <<"abc">>,
true = [97, 98, 99] =:= binary_to_list(Bin12),
A = 1, B = 17, C = 42,
Bin2 = <<A, B, C:16>>,
true = [1, 17, 00, 42] =:= binary_to_list(Bin2),
<<D:16, E, F/binary>> = Bin2,
true = D =:= 273,
true = E =:= 00,
true = [42] =:= binary_to_list(F),
Fun4 = fun(Dgram) ->
DgramSize = byte_size(Dgram),
case Dgram of
<<?IP_VERSION:4, HLen:4, SrvcType:8, TotLen:16,
ID:16, Flgs:3, FragOff:13,
TTL:8, Proto:8, HdrChkSum:16,
SrcIP:32, DestIP:32,
RestDgram/binary>> when HLen>=5, 4*HLen=<DgramSize ->
OptsLen = 4*(HLen - ?IP_MIN_HDR_LEN),
<<Opts:OptsLen/binary,Data/binary>> = RestDgram,
{SrvcType, TotLen, Flgs, FragOff, ID, HdrChkSum,
Proto, TTL, SrcIP, DestIP, Data, Opts};
_ ->
not_ok
end
end,
true = Fun4(<<>>) =:= not_ok,
true = is_tuple(Fun4(list_to_binary([<<?IP_VERSION:4,5:4>>,
list_to_binary(lists:seq(1,255))]))),
X = 23432324, Y = 24324234,
<<10:7>> = <<X:1, Y:6>>,
Z = 234324324,
XYZ = <<X:1, Y:6, Z:1>>,
true = [20] =:= binary_to_list(XYZ),
Hello1 = <<"hello">>,
Hello2 = <<$h,$e,$l,$l,$o>>,
true = "hello" =:= binary_to_list(Hello1),
true = "hello" =:= binary_to_list(Hello2),
FunM1 = fun(<<X1:7/binary, Y1:1/binary>>) -> {X1,Y1} end,
true = {<<"1234567">>,<<"8">>} =:= FunM1(<<"12345678">>),
FunM2 = fun(<<_X1:7/binary-unit:7, _Y1:1/binary-unit:1>>) -> ok;
(_) -> not_ok end,
true = not_ok =:= FunM2(<<"1">>),
BL = [{3,4,5},{6,7,8}],
Lst = [0,0,0,3,0,0,0,4,0,0,0,5,0,0,0,6,0,0,0,7,0,0,0,8],
B1 = triples_to_bin1(BL),
true = Lst =:= binary_to_list(B1),
B2 = triples_to_bin2(BL),
true = Lst =:= binary_to_list(B2),
?line [ok] = scan(
<<"Bin11 = <<1, 17, 42>>,
true = [1, 17, 42] =:= binary_to_list(Bin11),
Bin12 = <<\"abc\">>,
true = [97, 98, 99] =:= binary_to_list(Bin12),
A = 1, B = 17, C = 42,
Bin2 = <<A, B, C:16>>,
true = [1, 17, 00, 42] =:= binary_to_list(Bin2),
<<D:16, E, F/binary>> = Bin2,
true = D =:= 273,
true = E =:= 00,
true = [42] =:= binary_to_list(F),
Fun4 = fun(Dgram) ->
DgramSize = byte_size(Dgram),
case Dgram of
<<4:4, HLen:4, SrvcType:8, TotLen:16,
ID:16, Flgs:3, FragOff:13,
TTL:8, Proto:8, HdrChkSum:16,
SrcIP:32, DestIP:32,
RestDgram/binary>> when HLen>=5,
4*HLen=<DgramSize ->
OptsLen = 4*(HLen - 5),
<<Opts:OptsLen/binary,Data/binary>> = RestDgram,
{SrvcType, TotLen, Flgs, FragOff, ID, HdrChkSum,
Proto, TTL, SrcIP, DestIP, Data, Opts};
_ ->
not_ok
end
end,
true = Fun4(<<>>) =:= not_ok,
true = is_tuple(Fun4(list_to_binary
([<<4:4,5:4>>,list_to_binary(lists:seq(1,255))]))),
X = 23432324, Y = 24324234,
<<10:7>> = <<X:1, Y:6>>,
Z = 234324324,
XYZ = <<X:1, Y:6, Z:1>>,
true = [20] =:= binary_to_list(XYZ),
Hello1 = <<\"hello\">>,
Hello2 = <<$h,$e,$l,$l,$o>>,
true = \"hello\" =:= binary_to_list(Hello1),
true = \"hello\" =:= binary_to_list(Hello2),
FunM1 = fun(<<X1:7/binary, Y1:1/binary>>) -> {X1,Y1} end,
true = {<<\"1234567\">>,<<\"8\">>} =:= FunM1(<<\"12345678\">>),
FunM2 = fun(<<_X1:7/binary-unit:7, _Y1:1/binary-unit:1>>) -> ok;
(_) -> not_ok end,
true = not_ok =:= FunM2(<<\"1\">>),
ok.">>),
ok.
triples_to_bin1(T) ->
triples_to_bin1(T, <<>>).
triples_to_bin1([{X,Y,Z} | T], Acc) ->
triples_to_bin1(T, <<Acc/binary, X:32, Y:32, Z:32>>); % inefficient
triples_to_bin1([], Acc) ->
Acc.
triples_to_bin2(T) ->
triples_to_bin2(T, []).
triples_to_bin2([{X,Y,Z} | T], Acc) ->
triples_to_bin2(T, [<<X:32, Y:32, Z:32>> | Acc]);
triples_to_bin2([], Acc) ->
list_to_binary(lists:reverse(Acc)).
%% Record examples from Programming Examples. OTP-5237.
progex_records(Config) when is_list(Config) ->
Test1 =
<<"-module(recs).
-record(person, {name = \"\", phone = [], address}).
-record(name, {first = \"Robert\", last = \"Ericsson\"}).
-record(person2, {name = #name{}, phone}).
-export([t/0]).
t() ->
_P1 = #person{phone=[0,8,2,3,4,3,1,2], name=\"Robert\"},
\"Robert\" = _P1#person.name,
[0,8,2,3,4,3,1,2] = _P1#person.phone,
undefined = _P1#person.address,
_P2 = #person{name = \"Jakob\", _ = '_'},
\"Jakob\" = _P2#person.name,
'_' = _P2#person.phone,
'_' = _P2#person.address,
P = #person{name = \"Joe\", phone = [0,8,2,3,4,3,1,2]},
\"Joe\" = P#person.name,
[0,8,2,3,4,3,1,2] = P#person.phone,
undefined = P#person.address,
P1 = #person{name=\"Joe\", phone=[1,2,3], address=\"A street\"},
P2 = P1#person{name=\"Robert\"},
\"Robert\" = P2#person.name,
[1,2,3] = P2#person.phone,
\"A street\" = P2#person.address,
a_person = foo(P1),
{found, [1,2,3]} =
find_phone([#person{name = a},
#person{name = b, phone = [3,2,1]},
#person{name = c, phone = [1,2,3]}],
c),
P3 = #person{name=\"Joe\", phone=[0,0,7], address=\"A street\"},
#person{name = Name} = P3,
\"Joe\" = Name,
\"Robert\" = demo(),
ok.
foo(P) when is_record(P, person) -> a_person;
foo(_) -> not_a_person.
find_phone([#person{name=Name, phone=Phone} | _], Name) ->
{found, Phone};
find_phone([_| T], Name) ->
find_phone(T, Name);
find_phone([], _Name) ->
not_found.
demo() ->
P = #person2{name= #name{first=\"Robert\",last=\"Virding\"},
phone=123},
_First = (P#person2.name)#name.first.
">>,
?line ok = run_file(Config, recs, Test1),
Test1_shell =
<<"rd(person, {name = \"\", phone = [], address}),
rd(name, {first = \"Robert\", last = \"Ericsson\"}),
rd(person2, {name = #name{}, phone}),
_P1 = #person{phone=[0,8,2,3,4,3,1,2], name=\"Robert\"},
\"Robert\" = _P1#person.name,
[0,8,2,3,4,3,1,2] = _P1#person.phone,
undefined = _P1#person.address,
_P2 = #person{name = \"Jakob\", _ = '_'},
\"Jakob\" = _P2#person.name,
'_' = _P2#person.phone,
'_' = _P2#person.address,
P = #person{name = \"Joe\", phone = [0,8,2,3,4,3,1,2]},
\"Joe\" = P#person.name,
[0,8,2,3,4,3,1,2] = P#person.phone,
undefined = P#person.address,
P1 = #person{name=\"Joe\", phone=[1,2,3], address=\"A street\"},
P2 = P1#person{name=\"Robert\"},
\"Robert\" = P2#person.name,
[1,2,3] = P2#person.phone,
\"A street\" = P2#person.address,
Foo = fun(P) when is_record(P, person) -> a_person;
(_) -> not_a_person
end,
a_person = Foo(P1),
Find = fun([#person{name=Name, phone=Phone} | _], Name, Fn) ->
{found, Phone};
([_| T], Name, Fn) ->
Fn(T, Name, Fn);
([], _Name, _Fn) ->
not_found
end,
{found, [1,2,3]} = Find([#person{name = a},
#person{name = b, phone = [3,2,1]},
#person{name = c, phone = [1,2,3]}],
c,
Find),
P3 = #person{name=\"Joe\", phone=[0,0,7], address=\"A street\"},
#person{name = Name} = P3,
\"Joe\" = Name,
Demo = fun() ->
P17 = #person2{name= #name{first=\"Robert\",last=\"Virding\"},
phone=123},
_First = (P17#person2.name)#name.first
end,
\"Robert\" = Demo(),
ok.
">>,
?line [ok] = scan(Test1_shell),
Test2 =
<<"-module(recs).
-record(person, {name, age, phone = [], dict = []}).
-compile(export_all).
t() -> ok.
make_hacker_without_phone(Name, Age) ->
#person{name = Name, age = Age,
dict = [{computer_knowledge, excellent},
{drinks, coke}]}.
print(#person{name = Name, age = Age,
phone = Phone, dict = Dict}) ->
io:format(\"Name: ~s, Age: ~w, Phone: ~w ~n\"
\"Dictionary: ~w.~n\", [Name, Age, Phone, Dict]).
birthday(P) when record(P, person) ->
P#person{age = P#person.age + 1}.
register_two_hackers() ->
Hacker1 = make_hacker_without_phone(\"Joe\", 29),
OldHacker = birthday(Hacker1),
% The central_register_server should have
% an interface function for this.
central_register_server ! {register_person, Hacker1},
central_register_server ! {register_person,
OldHacker#person{name = \"Robert\",
phone = [0,8,3,2,4,5,3,1]}}.
">>,
?line ok = run_file(Config, recs, Test2),
ok.
%% List comprehension examples from Programming Examples. OTP-5237.
progex_lc(Config) when is_list(Config) ->
Test1 =
<<"-module(lc).
-export([t/0]).
t() ->
[a,4,b,5,6] = [X || X <- [1,2,a,3,4,b,5,6], X > 3],
[4,5,6] = [X || X <- [1,2,a,3,4,b,5,6], integer(X), X > 3],
[{1,a},{1,b},{2,a},{2,b},{3,a},{3,b}] =
[{X, Y} || X <- [1,2,3], Y <- [a,b]],
[1,2,3,4,5,6,7,8] = sort([4,5,1,8,3,6,7,2]),
[[b,u,g],[b,g,u],[u,b,g],[u,g,b],[g,b,u],[g,u,b]] =
perms([b,u,g]),
[] = pyth(11),
[{3,4,5},{4,3,5}] = pyth(12),
[{3,4,5},{4,3,5},{5,12,13},{6,8,10},{8,6,10},{8,15,17},
{9,12,15},{12,5,13},{12,9,15},{12,16,20},{15,8,17},
{16,12,20}] = pyth(50),
[] = pyth1(11),
[{3,4,5},{4,3,5}] = pyth1(12),
[{3,4,5},{4,3,5},{5,12,13},{6,8,10},{8,6,10},{8,15,17},
{9,12,15},{12,5,13},{12,9,15},{12,16,20},{15,8,17},
{16,12,20}] = pyth1(50),
[1,2,3,4,5] = append([[1,2,3],[4,5]]),
[2,3,4] = map(fun(X) -> X + 1 end, [1,2,3]),
[2,4] = filter(fun(X) -> X > 1 end, [0,2,4]),
[1,2,3,7] = select(b,[{a,1},{b,2},{c,3},{b,7}]),
[2,7] = select2(b,[{a,1},{b,2},{c,3},{b,7}]),
ok.
sort([Pivot|T]) ->
sort([ X || X <- T, X < Pivot]) ++
[Pivot] ++
sort([ X || X <- T, X >= Pivot]);
sort([]) -> [].
perms([]) -> [[]];
perms(L) -> [[H|T] || H <- L, T <- perms(L--[H])].
pyth(N) ->
[ {A,B,C} ||
A <- lists:seq(1,N),
B <- lists:seq(1,N),
C <- lists:seq(1,N),
A+B+C =< N,
A*A+B*B == C*C
].
pyth1(N) ->
[{A,B,C} ||
A <- lists:seq(1,N),
B <- lists:seq(1,N-A+1),
C <- lists:seq(1,N-A-B+2),
A+B+C =< N,
A*A+B*B == C*C ].
append(L) -> [X || L1 <- L, X <- L1].
map(Fun, L) -> [Fun(X) || X <- L].
filter(Pred, L) -> [X || X <- L, Pred(X)].
select(X, L) -> [Y || {X, Y} <- L].
select2(X, L) -> [Y || {X1, Y} <- L, X == X1].
">>,
?line ok = run_file(Config, lc, Test1),
Test1_shell =
<<"[a,4,b,5,6] = [X || X <- [1,2,a,3,4,b,5,6], X > 3],
[4,5,6] = [X || X <- [1,2,a,3,4,b,5,6], integer(X), X > 3],
[{1,a},{1,b},{2,a},{2,b},{3,a},{3,b}] =
[{X, Y} || X <- [1,2,3], Y <- [a,b]],
Sort = fun([Pivot|T], Fn) ->
Fn([ X || X <- T, X < Pivot], Fn) ++
[Pivot] ++
Fn([ X || X <- T, X >= Pivot], Fn);
([], _Fn) -> []
end,
[1,2,3,4,5,6,7,8] = Sort([4,5,1,8,3,6,7,2], Sort),
Perms = fun([], _Fn) -> [[]];
(L, Fn) -> [[H|T] || H <- L, T <- Fn(L--[H], Fn)]
end,
[[b,u,g],[b,g,u],[u,b,g],[u,g,b],[g,b,u],[g,u,b]] =
Perms([b,u,g], Perms),
Pyth = fun(N) ->
[ {A,B,C} ||
A <- lists:seq(1,N),
B <- lists:seq(1,N),
C <- lists:seq(1,N),
A+B+C =< N,
A*A+B*B == C*C
]
end,
[] = Pyth(11),
[{3,4,5},{4,3,5}] = Pyth(12),
%[{3,4,5},{4,3,5},{5,12,13},{6,8,10},{8,6,10},{8,15,17},
% {9,12,15},{12,5,13},{12,9,15},{12,16,20},{15,8,17},
% {16,12,20}] = Pyth(50),
Pyth1 = fun(N) ->
[{A,B,C} ||
A <- lists:seq(1,N),
B <- lists:seq(1,N-A+1),
C <- lists:seq(1,N-A-B+2),
A+B+C =< N,
A*A+B*B == C*C ]
end,
[] = Pyth1(11),
[{3,4,5},{4,3,5}] = Pyth1(12),
[{3,4,5},{4,3,5},{5,12,13},{6,8,10},{8,6,10},{8,15,17},
{9,12,15},{12,5,13},{12,9,15},{12,16,20},{15,8,17},
{16,12,20}] = Pyth1(50),
Append = fun(L) -> [X || L1 <- L, X <- L1] end,
[1,2,3,4,5] = Append([[1,2,3],[4,5]]),
Map = fun(Fun, L) -> [Fun(X) || X <- L] end,
[2,3,4] = Map(fun(X) -> X + 1 end, [1,2,3]),
Filter = fun(Pred, L) -> [X || X <- L, Pred(X)] end,
[2,4] = Filter(fun(X) -> X > 1 end, [0,2,4]),
Select = fun(X, L) -> [Y || {X, Y} <- L] end,
[1,2,3,7] = Select(b,[{a,1},{b,2},{c,3},{b,7}]),
Select2 = fun(X, L) -> [Y || {X1, Y} <- L, X == X1] end,
[2,7] = Select2(b,[{a,1},{b,2},{c,3},{b,7}]),
ok.
">>,
?line [ok] = scan(Test1_shell),
ok.
%% Funs examples from Programming Examples. OTP-5237.
progex_funs(Config) when is_list(Config) ->
Test1 =
<<"-module(funs).
-compile(export_all).
double([H|T]) -> [2*H|double(T)];
double([]) -> [].
add_one([H|T]) -> [H+1|add_one(T)];
add_one([]) -> [].
map(F, [H|T]) -> [F(H)|map(F, T)];
map(F, []) -> [].
double2(L) -> map(fun(X) -> 2*X end, L).
add_one2(L) -> map(fun(X) -> 1 + X end, L).
print_list(Stream, [H|T]) ->
io:format(Stream, \"~p~n\", [H]),
print_list(Stream, T);
print_list(Stream, []) ->
true.
broadcast(Msg, [Pid|Pids]) ->
Pid ! Msg,
broadcast(Msg, Pids);
broadcast(_, []) ->
true.
foreach(F, [H|T]) ->
F(H),
foreach(F, T);
foreach(F, []) ->
ok.
print_list2(S, L) ->
foreach(fun(H) -> io:format(S, \"~p~n\",[H]) end, L).
broadcast2(M, L) -> foreach(fun(Pid) -> Pid ! M end, L).
t1() -> map(fun(X) -> 2 * X end, [1,2,3,4,5]).
t2() -> map(fun double/1, [1,2,3,4,5]).
t3() -> map({?MODULE, double3}, [1,2,3,4,5]).
double3(X) -> X * 2.
f(F, Args) when function(F) ->
apply(F, Args);
f(N, _) when integer(N) ->
N.
print_list3(File, List) ->
{ok, Stream} = file:open(File, write),
foreach(fun(X) -> io:format(Stream,\"~p~n\",[X]) end, List),
file:close(Stream).
print_list4(File, List) ->
{ok, Stream} = file:open(File, write),
foreach(fun(File) ->
io:format(Stream,\"~p~n\",[File])
end, List),
file:close(Stream).
any(Pred, [H|T]) ->
case Pred(H) of
true -> true;
false -> any(Pred, T)
end;
any(Pred, []) ->
false.
all(Pred, [H|T]) ->
case Pred(H) of
true -> all(Pred, T);
false -> false
end;
all(Pred, []) ->
true.
foldl(F, Accu, [Hd|Tail]) ->
foldl(F, F(Hd, Accu), Tail);
foldl(F, Accu, []) -> Accu.
mapfoldl(F, Accu0, [Hd|Tail]) ->
{R,Accu1} = F(Hd, Accu0),
{Rs,Accu2} = mapfoldl(F, Accu1, Tail),
{[R|Rs], Accu2};
mapfoldl(F, Accu, []) -> {[], Accu}.
filter(F, [H|T]) ->
case F(H) of
true -> [H|filter(F, T)];
false -> filter(F, T)
end;
filter(F, []) -> [].
diff(L1, L2) ->
filter(fun(X) -> not lists:member(X, L2) end, L1).
intersection(L1,L2) -> filter(fun(X) -> lists:member(X,L1) end, L2).
takewhile(Pred, [H|T]) ->
case Pred(H) of
true -> [H|takewhile(Pred, T)];
false -> []
end;
takewhile(Pred, []) ->
[].
dropwhile(Pred, [H|T]) ->
case Pred(H) of
true -> dropwhile(Pred, T);
false -> [H|T]
end;
dropwhile(Pred, []) ->
[].
splitlist(Pred, L) ->
splitlist(Pred, L, []).
splitlist(Pred, [H|T], L) ->
case Pred(H) of
true -> splitlist(Pred, T, [H|L]);
false -> {lists:reverse(L), [H|T]}
end;
splitlist(Pred, [], L) ->
{lists:reverse(L), []}.
first(Pred, [H|T]) ->
case Pred(H) of
true ->
{true, H};
false ->
first(Pred, T)
end;
first(Pred, []) ->
false.
ints_from(N) ->
fun() ->
[N|ints_from(N+1)]
end.
pconst(X) ->
fun (T) ->
case T of
[X|T1] -> {ok, {const, X}, T1};
_ -> fail
end
end.
pand(P1, P2) ->
fun (T) ->
case P1(T) of
{ok, R1, T1} ->
case P2(T1) of
{ok, R2, T2} ->
{ok, {'and', R1, R2}};
fail ->
fail
end;
fail ->
fail
end
end.
por(P1, P2) ->
fun (T) ->
case P1(T) of
{ok, R, T1} ->
{ok, {'or',1,R}, T1};
fail ->
case P2(T) of
{ok, R1, T1} ->
{ok, {'or',2,R1}, T1};
fail ->
fail
end
end
end.
grammar() ->
pand(
por(pconst(a), pconst(b)),
por(pconst(c), pconst(d))).
parse(List) ->
(grammar())(List).
t() ->
[2,4,6,8] = double([1,2,3,4]),
[2,3,4,5] = add_one([1,2,3,4]),
[2,4,6,8] = double2([1,2,3,4]),
[2,3,4,5] = add_one2([1,2,3,4]),
XX = ints_from(1),
[1 | _] = XX(),
1 = hd(XX()),
Y = tl(XX()),
2 = hd(Y()),
P1 = pconst(a),
{ok,{const,a},[b,c]} = P1([a,b,c]),
fail = P1([x,y,z]),
{ok,{'and',{'or',1,{const,a}},{'or',1,{const,c}}}} =
parse([a,c]),
{ok,{'and',{'or',1,{const,a}},{'or',2,{const,d}}}} =
parse([a,d]),
{ok,{'and',{'or',2,{const,b}},{'or',1,{const,c}}}} =
parse([b,c]),
{ok,{'and',{'or',2,{const,b}},{'or',2,{const,d}}}} =
parse([b,d]),
fail = parse([a,b]),
ok.
">>,
?line ok = run_file(Config, funs, Test1),
Test2_shell =
<<"Double = fun(X) -> 2 * X end,
[2,4,6,8,10] = lists:map(Double, [1,2,3,4,5]),
Big = fun(X) -> if X > 10 -> true; true -> false end end,
false = lists:any(Big, [1,2,3,4]),
true = lists:any(Big, [1,2,3,12,5]),
false = lists:all(Big, [1,2,3,4,12,6]),
true = lists:all(Big, [12,13,14,15]),
L = [\"I\",\"like\",\"Erlang\"],
11 = lists:foldl(fun(X, Sum) -> length(X) + Sum end, 0, L),
Upcase = fun(X) when $a =< X, X =< $z -> X + $A - $a;
(X) -> X
end,
Upcase_word = fun(X) -> lists:map(Upcase, X) end,
\"ERLANG\" = Upcase_word(\"Erlang\"),
[\"I\",\"LIKE\",\"ERLANG\"] = lists:map(Upcase_word, L),
{[\"I\",\"LIKE\",\"ERLANG\"],11} =
lists:mapfoldl(fun(Word, Sum) ->
{Upcase_word(Word), Sum + length(Word)}
end, 0, L),
[500,12,45] = lists:filter(Big, [500,12,2,45,6,7]),
[200,500,45] = lists:takewhile(Big, [200,500,45,5,3,45,6]),
[5,3,45,6] = lists:dropwhile(Big, [200,500,45,5,3,45,6]),
{[200,500,45],[5,3,45,6]} =
lists:splitwith(Big, [200,500,45,5,3,45,6]),
%% {true,45} = lists:first(Big, [1,2,45,6,123]),
%% false = lists:first(Big, [1,2,4,5]),
Adder = fun(X) -> fun(Y) -> X + Y end end,
Add6 = Adder(6),
16 = Add6(10),
ok.
">>,
?line [ok] = scan(Test2_shell),
ok.
%% OTP-5990. {erlang,is_record}.
otp_5990(Config) when is_list(Config) ->
?line [true] =
scan(<<"rd('OrdSet', {orddata = {},ordtype = type}), "
"S = #'OrdSet'{ordtype = {}}, "
"if tuple(S#'OrdSet'.ordtype) -> true; true -> false end.">>),
ok.
%% OTP-6166. Order of record definitions.
otp_6166(Config) when is_list(Config) ->
Test1 = filename:join(?config(priv_dir, Config), "test1.hrl"),
Contents1 = <<"-module(test1).
-record(r5, {f}). -record(r3, {f = #r5{}}). "
"-record(r1, {f = #r3{}}). -record(r4, {f = #r1{}}). "
"-record(r2, {f = #r4{}}).">>,
?line ok = file:write_file(Test1, Contents1),
Test2 = filename:join(?config(priv_dir, Config), "test2.hrl"),
Contents2 = <<"-module(test2).
-record(r5, {f}). -record(r3, {f = #r5{}}). "
"-record(r1, {f = #r3{}}). -record(r4, {f = #r1{}}). "
"-record(r2, {f = #r4{}}).
-record(r6, {f = #r5{}}). % r6 > r0
-record(r0, {f = #r5{}, g = #r5{}}). % r0 < r5">>,
?line ok = file:write_file(Test2, Contents2),
RR12 = "[r1,r2,r3,r4,r5] = rr(\"" ++ Test1 ++ "\"),
[r0,r1,r2,r3,r4,r5,r6] = rr(\"" ++ Test2 ++ "\"),
R0 = #r0{}, R6 = #r6{},
true = is_record(R0, r0),
true = is_record(R6, r6),
ok. ",
?line [ok] = scan(RR12),
file:delete(Test1),
file:delete(Test2),
ok.
%% OTP-6554. Formatted exits and error messages.
otp_6554(Config) when is_list(Config) ->
%% Should check the stacktrace as well...
?line "exception error: bad argument" =
comm_err(<<"math:sqrt(a).">>),
?line "exception error: bad argument" =
comm_err(<<"fun(X, Y) -> X ++ Y end(a, b).">>),
?line "exception error: bad argument" =
comm_err(<<"math:sqrt(lists:seq(1,40)).">>),
?line "exception error: bad argument" =
comm_err(<<"math:sqrt(lists:seq(1,10)).">>),
?line "exception error: bad argument" =
comm_err(<<"a ++ b.">>),
?line "exception error: bad argument" =
comm_err(<<"I = {file_info,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined},
aa ++ I.">>),
?line "exception error: bad argument" =
comm_err(<<"I = {file_info,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined},
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ++ I.">>),
?line "exception error: bad argument" =
comm_err(<<"I = {file_info,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined},
I ++ I.">>),
?line "exception error: bad argument" =
comm_err(<<"fun(X) -> not X end(a).">>),
?line "exception error: bad argument: a" =
comm_err(<<"fun(A, B) -> A orelse B end(a, b).">>),
?line "exception error: an error occurred when evaluating an arithmetic expression" =
comm_err(<<"math:sqrt(2)/round(math:sqrt(0)).">>),
?line "exception error: interpreted function with arity 1 called with no arguments" =
comm_err(<<"fun(V) -> V end().">>),
?line "exception error: interpreted function with arity 1 called with two arguments" =
comm_err(<<"fun(V) -> V end(1,2).">>),
?line "exception error: interpreted function with arity 0 called with one argument" =
comm_err(<<"fun() -> v end(1).">>),
?line "exception error: interpreted function with arity 0 called with 4 arguments" =
comm_err(<<"fun() -> v end(1,2,3,4).">>),
?line "exception error: math:sqrt/1 called with two arguments" =
comm_err(<<"fun math:sqrt/1(1,2).">>),
?line "exception error: bad function 1." ++ _ =
comm_err(<<"(math:sqrt(2))().">>),
?line "exception error: bad function [1," ++ _ =
comm_err(<<"(lists:seq(1, 100))().">>),
?line "exception error: no match of right hand side value 1" ++ _ =
comm_err(<<"a = math:sqrt(2).">>),
?line "exception error: no match of right hand side value" ++ _ =
comm_err(<<"I = {file_info,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined,undefined,
undefined,undefined,undefined,undefined},
a = I.">>),
?line "exception error: no case clause matching 1" ++ _ =
comm_err(<<"case math:sqrt(2) of a -> ok end.">>),
?line "exception error: no case clause matching [1," ++ _ =
comm_err(<<"V = lists:seq(1, 20), case V of a -> ok end.">>),
?line "exception error: no function clause matching" =
comm_err(<<"fun(P) when is_pid(P) -> true end(a).">>),
case test_server:is_native(erl_eval) of
true ->
%% Native code has different exit reason. Don't bother
%% testing them.
ok;
false ->
"exception error: {function_clause," =
comm_err(<<"erlang:error(function_clause, "
"[unproper | list]).">>),
%% Cheating:
"exception error: no function clause matching "
"erl_eval:do_apply(4)" ++ _ =
comm_err(<<"erlang:error(function_clause, [4]).">>),
"exception error: no function clause matching "
"lists:reverse(" ++ _ =
comm_err(<<"F=fun() -> hello end, lists:reverse(F).">>),
"exception error: no function clause matching "
"lists:reverse(34) (lists.erl, line " ++ _ =
comm_err(<<"lists:reverse(34).">>)
end,
?line "exception error: function_clause" =
comm_err(<<"erlang:error(function_clause, 4).">>),
?line "exception error: no function clause matching" ++ _ =
comm_err(<<"fun(a, b, c, d) -> foo end"
" (lists:seq(1,17),"
" lists:seq(1, 18),"
" lists:seq(1, 40),"
" lists:seq(1, 5)).">>),
?line "exception error: no function clause matching" =
comm_err(<<"fun(P, q) when is_pid(P) -> true end(a, b).">>),
?line "exception error: no true branch found when evaluating an if expression" =
comm_err(<<"if length([a,b]) > 17 -> a end.">>),
?line "exception error: no such process or port" =
comm_err(<<"Pid = spawn(fun() -> a end),"
"timer:sleep(1),"
"link(Pid).">>),
?line "exception error: a system limit has been reached" =
comm_err(<<"list_to_atom(lists:duplicate(300,$a)).">>),
?line "exception error: bad receive timeout value" =
comm_err(<<"receive after a -> foo end.">>),
?line "exception error: no try clause matching 1" ++ _ =
comm_err(<<"try math:sqrt(2) of bar -> yes after 3 end.">>),
?line "exception error: no try clause matching [1" ++ _ =
comm_err(<<"V = lists:seq(1, 20),"
"try V of bar -> yes after 3 end.">>),
?line "exception error: undefined function math:sqrt/2" =
comm_err(<<"math:sqrt(2, 2).">>),
?line "exception error: limit of number of arguments to interpreted function "
"exceeded" =
comm_err(<<"fun(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U) ->"
" a end().">>),
?line "exception error: bad filter a" =
comm_err(<<"[b || begin a end].">>),
?line "exception error: bad generator a" =
comm_err(<<"[X || X <- a].">>),
?line "exception throw: undef" = comm_err(<<"throw(undef).">>),
?line "exception exit: undef" = comm_err(<<"exit(undef).">>),
?line "exception exit: foo" =
comm_err(<<"catch spawn_link(fun() ->"
" timer:sleep(300), exit(foo) "
" end),"
"timer:sleep(500).">>),
?line [ok] = scan(
<<"begin process_flag(trap_exit, true),"
" Pid = spawn_link(fun() ->"
" timer:sleep(300), exit(foo) "
" end),"
" timer:sleep(500),"
" receive {'EXIT', Pid, foo} -> ok end end.">>),
?line "exception exit: badarith" =
comm_err(<<"catch spawn_link(fun() ->"
" timer:sleep(300), 1/0 "
" end),"
"timer:sleep(500).">>),
?line "exception exit: {nocatch,foo}" =
comm_err(<<"catch spawn_link(fun() ->"
" timer:sleep(300), throw(foo) "
" end),"
"timer:sleep(500).">>),
?line [ok] = scan(
<<"begin process_flag(trap_exit, true),"
" Pid = spawn_link(fun() ->"
" timer:sleep(300), throw(foo) "
" end),"
" timer:sleep(500),"
" receive {'EXIT', Pid, {{nocatch,foo},_}} -> ok end "
"end.">>),
?line "exception error: an error occurred when evaluating an arithmetic expression" =
comm_err(<<"begin catch_exception(true), 1/0 end.">>),
?line "exception error: an error occurred when evaluating an arithmetic expression" =
comm_err(<<"begin catch_exception(false), 1/0 end.">>),
?line "exception error: no function clause matching call to catch_exception/1" =
comm_err(<<"catch_exception(1).">>),
%% A bug was corrected (expansion of 'try'):
?line "2: command not found" =
comm_err(<<"try 1 of 1 -> v(2) after 3 end.">>),
%% Cover a few lines:
?line "3: command not found" =
comm_err(<<"receive foo -> foo after 0 -> v(3) end.">>),
?line "3: command not found" =
comm_err(<<"receive foo -> foo after 0 -> e(3) end.">>),
?line "1 / 0: command not found" = comm_err(<<"v(1/0).">>),
?line "1\n1.\n" = t(<<"1. e(1).">>),
?line [ok] = scan(<<"h().">>),
?line "exception exit: normal" = comm_err(<<"exit(normal).">>),
?line [foo] = scan(<<"begin history(0), foo end.">>),
?line application:unset_env(stdlib, shell_history_length),
?line [true] = scan(<<"begin <<10:(1024*1024*10)>>,"
"<<10:(1024*1024*10)>>, garbage_collect() end.">>),
?line "1: syntax error before: '.'" = comm_err("1-."),
%% ?line comm_err(<<"exit().">>), % would hang
?line "exception error: no function clause matching call to history/1" =
comm_err(<<"history(foo).">>),
?line "exception error: no function clause matching call to results/1" =
comm_err(<<"results(foo).">>),
?line Test = filename:join(?config(priv_dir, Config),
"otp_6554.erl"),
Contents = <<"-module(otp_6554).
-export([local_allowed/3, non_local_allowed/3]).
local_allowed(_,_,State) ->
{true,State}.
non_local_allowed(_,_,State) ->
{true,State}.
">>,
?line ok = compile_file(Config, Test, Contents, []),
?line "exception exit: restricted shell starts now" =
comm_err(<<"begin shell:start_restricted(otp_6554) end.">>),
?line "-record(r,{}).\n1.\nok.\n" =
t(<<"f(), f(B), h(), b(), history(20), results(20),"
"rd(r, {}), rl(r), rf('_'), rl(), rf(),"
"rp(1), _ = rr({foo}), _ = rr({foo}, []),"
"rr({foo}, [], []), ok.">>),
?line "false.\n" = t(<<"catch_exception(true).">>),
?line "exception exit: restricted shell stopped"=
comm_err(<<"begin shell:stop_restricted() end.">>),
?line "true.\n" = t(<<"catch_exception(false).">>),
?line "20\n1\n1\n1: results(2)\n2: 1\n-> 1\n3: v(2)\n-> 1.\nok.\n" =
t(<<"results(2). 1. v(2). h().">>),
?line application:unset_env(stdlib, shell_saved_results),
?line "1\nfoo\n17\nB = foo\nC = 17\nF = fun() ->\n foo"
"\n end.\nok.\n" =
t(<<"begin F = fun() -> foo end, 1 end. B = F(). C = 17. b().">>),
?line "3: command not found" = comm_err(<<"#{v(3) => v}.">>),
?line "3: command not found" = comm_err(<<"#{k => v(3)}.">>),
?line "3: command not found" = comm_err(<<"#{v(3) := v}.">>),
?line "3: command not found" = comm_err(<<"#{k := v(3)}.">>),
?line "3: command not found" = comm_err(<<"(v(3))#{}.">>),
%% Tests I'd like to do: (you should try them manually)
%% "catch spawn_link(fun() -> timer:sleep(1000), exit(foo) end)."
%% "** exception error: foo" should be output after 1 second
%% "catch spawn_link(fun() -> timer:sleep(1000), 1/0 end)."
%% "** exception error: bad argument..." should be output after 1 second
%% "1/0", "exit(foo)", "throw(foo)".
%% "h()." should show {'EXIT', {badarith,..}}, {'EXIT',{foo,...}},
%% and {'EXIT',{{nocatch,foo},...}}.
ok.
%% OTP-7184. Propagate exit signals from dying evaluator process.
otp_7184(Config) when is_list(Config) ->
register(otp_7184, self()),
?line catch
t(<<"P = self(),
spawn_link(fun() -> process_flag(trap_exit,true),
P ! up,
receive X ->
otp_7184 ! {otp_7184, X}
end
end),
receive up -> ok end,
erlang:raise(throw, thrown, []).">>),
receive {otp_7184,{'EXIT',_,{{nocatch,thrown},[]}}} -> ok end,
?line catch
t(<<"P = self(),
spawn_link(fun() -> process_flag(trap_exit,true),
P ! up,
receive X ->
otp_7184 ! {otp_7184, X}
end
end),
receive up -> ok end,
erlang:raise(exit, fini, []).">>),
receive {otp_7184,{'EXIT',_,{fini,[]}}} -> ok end,
?line catch
t(<<"P = self(),
spawn_link(fun() -> process_flag(trap_exit,true),
P ! up,
receive X ->
otp_7184 ! {otp_7184,X}
end
end),
receive up -> ok end,
erlang:raise(error, bad, []).">>),
receive {otp_7184,{'EXIT',_,{bad,[]}}} -> ok end,
unregister(otp_7184),
%% v/1, a few missed cases
?line "17\n<<0,0,0,64>>.\nok.\n" =
t(<<"17. "
"<<64:32>>. "
"<<64>> = << << X >> || << X >> <= v(2), X > v(1) >>, ok.">>),
?line "17\n<<0,17>>.\n" =t(<<"17. <<(v(1)):16>>.">>),
ok.
%% OTP-7232. qlc:info() bug.
otp_7232(Config) when is_list(Config) ->
Info = <<"qlc:info(qlc:sort(qlc:q([X || X <- [55296,56296]]), "
"{order, fun(A,B)-> A>B end})).">>,
"qlc:sort([55296,56296],\n"
" [{order,\n"
" fun(A, B) ->\n"
" A > B\n"
" end}])" = evaluate(Info, []),
ok.
%% OTP-8393. Prompt string.
otp_8393(Config) when is_list(Config) ->
?line _ = shell:prompt_func(default),
?line "Bad prompt function: '> '" =
prompt_err(<<"shell:prompt_func('> ').">>),
?line _ = shell:prompt_func(default),
?line "exception error: an error occurred when evaluating an arithmetic expression"++_ =
prompt_err(<<"shell:prompt_func({shell_SUITE,prompt4}).">>),
?line _ = shell:prompt_func(default),
?line "default.\n" =
t(<<"shell:prompt_func({shell_SUITE,prompt2}).">>),
?line _ = shell:prompt_func(default),
?line "default\nl.\n" =
t(<<"shell:prompt_func({shell_SUITE,prompt3}). l.">>),
%%
%% Although this tests that you can set a unicode prompt function
%% it does not really test that it does work with the io-servers.
%% That is instead tested in the io_proto_SUITE, which has
%% the right infrastructure in place for such tests. /PaN
%%
?line _ = shell:prompt_func(default),
?line "default\nl.\n" =
t(<<"shell:prompt_func({shell_SUITE,prompt5}). l.">>),
%% Restricted shell.
Contents = <<"-module(test_restricted_shell).
-export([local_allowed/3, non_local_allowed/3]).
local_allowed(_,_,State) ->
{false,State}.
non_local_allowed({shell,stop_restricted},[],State) ->
{true,State};
non_local_allowed({shell,prompt_func},[_L],State) ->
{true,State};
non_local_allowed({shell_SUITE,prompt1},[_L],State) ->
{true,State};
non_local_allowed(_,_,State) ->
{false,State}.
">>,
?line Test = filename:join(?config(priv_dir, Config),
"test_restricted_shell.erl"),
?line ok = compile_file(Config, Test, Contents, []),
?line _ = shell:prompt_func(default),
?line "exception exit: restricted shell starts now" =
comm_err(<<"begin shell:start_restricted("
"test_restricted_shell) end.">>),
?line "default.\n"++_ =
t(<<"shell:prompt_func({shell_SUITE,prompt1}).">>),
?line "exception exit: restricted shell does not allow apple(" ++ _ =
comm_err(<<"apple(1).">>),
?line "{shell_SUITE,prompt1}.\n" =
t(<<"shell:prompt_func(default).">>),
?line "exception exit: restricted shell stopped"=
comm_err(<<"begin shell:stop_restricted() end.">>),
?line undefined =
application:get_env(stdlib, restricted_shell),
?line NR = shell:results(20),
?line "default\n20.\n" =
t(<<"shell:prompt_func({shell_SUITE,prompt3}). results(0).">>),
?line _ = shell:prompt_func(default),
?line 0 = shell:results(NR),
ok.
prompt1(_L) ->
"prompt> ".
prompt2(_L) ->
{'EXIT', []}.
prompt3(L) ->
N = proplists:get_value(history, L),
integer_to_list(N).
prompt4(_L) ->
erlang:apply(fun erlang:'/'/2, [1,0]).
prompt5(_L) ->
[1050,1072,1082,1074,1086,32,1077,32,85,110,105,99,111,100,101,32,63].
-ifdef(not_used).
exit_term(B) ->
"** exception exit:" ++ Reply = t(B),
S0 = string:left(Reply, string:chr(Reply, $\n)-1),
S = string:strip(S0, right, $*),
{ok,Ts,_} = erl_scan:string(S),
{ok,Term} = erl_parse:parse_term(Ts),
Term.
-endif.
error_string(B) ->
"** exception error:" ++ Reply = t(B),
caught_string(Reply).
exit_string(B) ->
"** exception exit:" ++ Reply = t(B),
caught_string(Reply).
caught_string(Reply) ->
S0 = string:left(Reply, string:chr(Reply, $\n)-1),
S1 = string:strip(S0, right, $.),
S2 = string:strip(S1, left, $*),
S = string:strip(S2, both, $ ),
string:strip(S, both, $").
comm_err(B) ->
Reply = t(B),
S0 = string:left(Reply, string:chr(Reply, $\n)-1),
S1 = string:strip(S0, left, $*),
S2 = string:strip(S1, both, $ ),
S = string:strip(S2, both, $"),
string:strip(S, right, $.).
prompt_err(B) ->
Reply = t(B),
S00 = string:sub_string(Reply, string:chr(Reply, $\n)+1),
S0 = string:left(S00, string:chr(S00, $\n)-1),
S1 = string:strip(S0, left, $*),
S2 = string:strip(S1, both, $ ),
S = string:strip(S2, both, $"),
string:strip(S, right, $.).
%% OTP-10302. Unicode.
otp_10302(Config) when is_list(Config) ->
{ok,Node} = start_node(shell_suite_helper_2,
"-pa "++?config(priv_dir,Config)++
" +pc unicode"),
Test1 =
<<"begin
io:setopts([{encoding,utf8}]),
[1024] = \"\\x{400}\",
rd(rec, {a = \"\\x{400}\"}),
ok = rl(rec)
end.">>,
"-record(rec,{a = \"\x{400}\"}).\nok.\n" = t({Node,Test1}),
Test3 =
<<"io:setopts([{encoding,utf8}]).
rd(rec, {a = \"\\x{400}\"}).
ok = rp(#rec{}).">>,
"ok.\nrec\n#rec{a = \"\x{400}\"}.\nok.\n" = t({Node,Test3}),
Test4 =
<<"io:setopts([{encoding,utf8}]).
A = [1024] = \"\\x{400}\".
b().
h().">>,
"ok.\n\"\x{400}\"\nA = \"\x{400}\".\nok.\n"
"1: io:setopts([{encoding,utf8}])\n-> ok.\n"
"2: A = [1024] = \"\x{400}\"\n-> \"\x{400}\"\n"
"3: b()\n-> ok.\nok.\n" = t({Node,Test4}),
Test5 =
<<"begin
io:setopts([{encoding,utf8}]),
results(0),
A = [1024] = \"\\x{400}\",
b(),
h()
end.">>,
"A = \"\x{400}\".\nok.\n" = t({Node,Test5}),
%% One $" is "lost":
true =
"\x{400}\": command not found" =:=
prompt_err({Node,
<<"io:setopts([{encoding,utf8}]). v(\"\x{400}\")."/utf8>>,
unicode}),
"ok.\ndefault\n* Bad prompt function: \"\x{400}\".\n" =
t({Node,<<"io:setopts([{encoding,utf8}]). "
"shell:prompt_func(\"\x{400}\")."/utf8>>,
unicode}),
rpc:call(Node,shell, prompt_func, [default]),
_ = shell:prompt_func(default),
%% Test lib:format_exception() (cf. OTP-6554)
Test6 =
<<"begin
A = <<\"\\xaa\">>,
S = lists:flatten(io_lib:format(\"~p/~p.\", [A, A])),
{ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
{ok, Es} = erl_parse:parse_exprs(Ts),
B = erl_eval:new_bindings(),
erl_eval:exprs(Es, B)
end.">>,
"** exception error: an error occurred when evaluating"
" an arithmetic expression\n in operator '/'/2\n"
" called as <<\"\xaa\">> / <<\"\xaa\">>.\n" = t(Test6),
Test7 =
<<"io:setopts([{encoding,utf8}]).
A = <<\"\\xaa\">>,
S = lists:flatten(io_lib:format(\"~p/~p.\", [A, A])),
{ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
{ok, Es} = erl_parse:parse_exprs(Ts),
B = erl_eval:new_bindings(),
erl_eval:exprs(Es, B).">>,
"ok.\n** exception error: an error occurred when evaluating"
" an arithmetic expression\n in operator '/'/2\n"
" called as <<\"ª\">> / <<\"ª\">>.\n" = t({Node,Test7}),
Test8 =
<<"begin
A = [1089],
S = lists:flatten(io_lib:format(\"~tp/~tp.\", [A, A])),
{ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
{ok, Es} = erl_parse:parse_exprs(Ts),
B = erl_eval:new_bindings(),
erl_eval:exprs(Es, B)
end.">>,
"** exception error: an error occurred when evaluating"
" an arithmetic expression\n in operator '/'/2\n"
" called as [1089] / [1089].\n" = t(Test8),
Test9 =
<<"io:setopts([{encoding,utf8}]).
A = [1089],
S = lists:flatten(io_lib:format(\"~tp/~tp.\", [A, A])),
{ok, Ts, _} = erl_scan:string(S, 1, [unicode]),
{ok, Es} = erl_parse:parse_exprs(Ts),
B = erl_eval:new_bindings(),
erl_eval:exprs(Es, B).">>,
"ok.\n** exception error: an error occurred when evaluating"
" an arithmetic expression\n in operator '/'/2\n"
" called as \"\x{441}\" / \"\x{441}\".\n" = t({Node,Test9}),
Test10 =
<<"A = {\"1\\xaa\",
$\\xaa,
<< <<\"hi\">>/binary >>,
<<\"1\xaa\">>},
fun(a) -> true end(A).">>,
"** exception error: no function clause matching \n"
" erl_eval:'-inside-an-interpreted-fun-'"
"({\"1\xc2\xaa\",170,<<\"hi\">>,\n "
" <<\"1\xc2\xaa\">>}) .\n" = t(Test10),
Test11 =
<<"io:setopts([{encoding,utf8}]).
A = {\"1\\xaa\",
$\\xaa,
<< <<\"hi\">>/binary >>,
<<\"1\xaa\">>},
fun(a) -> true end(A).">>,
"ok.\n** exception error: no function clause matching \n"
" erl_eval:'-inside-an-interpreted-fun-'"
"({\"1\xaa\",170,<<\"hi\">>,\n "
" <<\"1\xaa\"/utf8>>}) .\n" = t({Node,Test11}),
Test12 = <<"fun(a, b) -> false end(65, [1089]).">>,
"** exception error: no function clause matching \n"
" erl_eval:'-inside-an-interpreted-fun-'(65,[1089])"
" .\n" = t(Test12),
Test13 =
<<"io:setopts([{encoding,utf8}]).
fun(a, b) -> false end(65, [1089]).">>,
"ok.\n** exception error: no function clause matching \n"
" erl_eval:'-inside-an-interpreted-fun-'(65,\"\x{441}\")"
" .\n" = t({Node,Test13}),
test_server:stop_node(Node),
ok.
scan(B) ->
F = fun(Ts) ->
case erl_parse:parse_term(Ts) of
{ok,Term} ->
Term;
_Error ->
{ok,Form} = erl_parse:parse_form(Ts),
Form
end
end,
scan(t(B), F).
scan(S0, F) ->
case erl_scan:tokens([], S0, 1, [unicode]) of
{done,{ok,Ts,_},S} ->
[F(Ts) | scan(S, F)];
_Else ->
[]
end.
t({Node,Bin,Enc}) when is_atom(Node),is_binary(Bin), is_atom(Enc) ->
t0({Bin,Enc}, fun() -> start_new_shell(Node) end);
t({Node,Bin}) when is_atom(Node),is_binary(Bin) ->
t0({Bin,latin1}, fun() -> start_new_shell(Node) end);
t(Bin) when is_binary(Bin) ->
t0({Bin,latin1}, fun() -> start_new_shell() end);
t({Bin,Enc}) when is_binary(Bin), is_atom(Enc) ->
t0({Bin,Enc}, fun() -> start_new_shell() end);
t(L) ->
t(list_to_binary(L)).
t0({Bin,Enc}, F) ->
%% Spawn a process so that io_request messages do not interfer.
P = self(),
C = spawn(fun() -> t1(P, {Bin, Enc}, F) end),
receive {C, R} -> R end.
t1(Parent, {Bin,Enc}, F) ->
io:format("*** Testing ~s~n", [binary_to_list(Bin)]),
S = #state{bin = Bin, unic = Enc, reply = [], leader = group_leader()},
group_leader(self(), self()),
_Shell = F(),
try
server_loop(S)
catch exit:R -> Parent ! {self(), R};
throw:{?MODULE,LoopReply,latin1} ->
L0 = binary_to_list(list_to_binary(LoopReply)),
[$\n | L1] = lists:dropwhile(fun(X) -> X =/= $\n end, L0),
Parent ! {self(), dotify(L1)};
throw:{?MODULE,LoopReply,_Uni} ->
Tmp = unicode:characters_to_binary(LoopReply),
L0 = unicode:characters_to_list(Tmp),
[$\n | L1] = lists:dropwhile(fun(X) -> X =/= $\n end, L0),
Parent ! {self(), dotify(L1)}
after group_leader(S#state.leader, self())
end.
dotify([$., $\n | L]) ->
[$., $\n | dotify(L)];
dotify([$,, $\n | L]) ->
[$,, $\n | dotify(L)];
dotify("ok\n" ++ L) ->
"ok.\n" ++ dotify(L);
dotify("\nok\n" ++ L) ->
".\nok.\n" ++ dotify(L);
dotify([$\n]) ->
[$., $\n];
dotify([C | L]) ->
[C | dotify(L)];
dotify([]) ->
[].
start_new_shell() ->
Shell = shell:start(),
link(Shell),
Shell.
start_new_shell(Node) ->
Shell = rpc:call(Node,shell,start,[]),
link(Shell),
Shell.
%% This is a very minimal implementation of the IO protocol...
server_loop(S) ->
receive
{io_request, From, ReplyAs, Request} when is_pid(From) ->
server_loop(do_io_request(Request, From, S, ReplyAs));
NotExpected ->
exit(NotExpected)
end.
do_io_request(Req, From, S, ReplyAs) ->
case io_requests([Req], [], S) of
{_Status,{eof,_},S1} ->
io_reply(From, ReplyAs, {error,terminated}),
throw({?MODULE,S1#state.reply,S1#state.unic});
{_Status,Reply,S1} ->
io_reply(From, ReplyAs, Reply),
S1
end.
io_reply(From, ReplyAs, Reply) ->
From ! {io_reply, ReplyAs, Reply}.
io_requests([{requests, Rs1} | Rs], Cont, S) ->
io_requests(Rs1, [Rs | Cont], S);
io_requests([R | Rs], Cont, S) ->
case io_request(R, S) of
{ok, ok, S1} ->
io_requests(Rs, Cont, S1);
Reply ->
Reply
end;
io_requests([], [Rs|Cont], S) ->
io_requests(Rs, Cont, S);
io_requests([], [], S) ->
{ok,ok,S}.
io_request({setopts, Opts}, S) ->
#state{unic = OldEnc, bin = Bin} = S,
NewEnc = case proplists:get_value(encoding, Opts) of
undefined -> OldEnc;
utf8 -> unicode;
New -> New
end,
NewBin = case {OldEnc, NewEnc} of
{E, E} -> Bin;
{latin1, _} ->
unicode:characters_to_binary(Bin, latin1, unicode);
{_, latin1} ->
unicode:characters_to_binary(Bin, unicode, latin1);
{_, _} -> Bin
end,
{ok, ok, S#state{unic = NewEnc, bin = NewBin}};
io_request(getopts, S) ->
{ok,[{encoding,S#state.unic}],S};
io_request({get_geometry,columns}, S) ->
{ok,80,S};
io_request({get_geometry,rows}, S) ->
{ok,24,S};
io_request({put_chars,Chars}, S) ->
{ok,ok,S#state{reply = [S#state.reply | Chars]}};
io_request({put_chars,latin1,Chars}, S) ->
{ok,ok,S#state{reply = [S#state.reply | Chars]}};
io_request({put_chars,unicode,Chars0}, S) ->
Chars = unicode:characters_to_list(Chars0),
{ok,ok,S#state{reply = [S#state.reply | Chars]}};
io_request({put_chars,Mod,Func,Args}, S) ->
case catch apply(Mod, Func, Args) of
Chars when is_list(Chars) ->
io_request({put_chars,Chars}, S)
end;
io_request({put_chars,Enc,Mod,Func,Args}, S) ->
case catch apply(Mod, Func, Args) of
Chars when is_list(Chars) ->
io_request({put_chars,Enc,Chars}, S)
end;
io_request({get_until,_Prompt,Mod,Func,ExtraArgs}, S) ->
get_until(Mod, Func, ExtraArgs, S, latin1);
io_request({get_until,Enc,_Prompt,Mod,Func,ExtraArgs}, S) ->
get_until(Mod, Func, ExtraArgs, S, Enc).
get_until(Mod, Func, ExtraArgs, S, Enc) ->
get_until_loop(Mod, Func, ExtraArgs, S, {more,[]}, Enc).
get_until_loop(M, F, As, S, {more,Cont}, Enc) ->
Bin = S#state.bin,
case byte_size(Bin) of
0 ->
get_until_loop(M, F, As, S,
catch apply(M, F, [Cont,eof|As]), Enc);
_ when S#state.unic =:= latin1 ->
get_until_loop(M, F, As, S#state{bin = <<>>},
catch apply(M, F, [Cont,binary_to_list(Bin)|As]), Enc);
_ ->
get_until_loop(M, F, As, S#state{bin = <<>>},
catch apply(M, F, [Cont,unicode:characters_to_list(Bin)|As]), Enc)
end;
get_until_loop(_M, _F, _As, S, {done,Res,Buf}, Enc) ->
{ok,Res,S#state{bin = buf2bin(Buf, Enc)}};
get_until_loop(_M, F, _As, S, _Other, _Enc) ->
{error,{error,F},S}.
buf2bin(eof,_) ->
<<>>;
buf2bin(Buf,latin1) ->
list_to_binary(Buf);
buf2bin(Buf,utf8) ->
unicode:characters_to_binary(Buf,unicode,unicode);
buf2bin(Buf,unicode) ->
unicode:characters_to_binary(Buf,unicode,unicode).
run_file(Config, Module, Test) ->
FileName = filename(lists:concat([Module, ".erl"]), Config),
BeamFile = filename(lists:concat([Module, ".beam"]), Config),
LoadBeamFile = filename(Module, Config),
ok = file:write_file(FileName, Test),
ok = compile_file(Config, FileName, Test, []),
code:purge(Module),
{module, Module} = code:load_abs(LoadBeamFile),
ok = Module:t(),
file:delete(FileName),
file:delete(BeamFile),
ok.
compile_file(Config, File, Test, Opts0) ->
?line Opts = [export_all,return,{outdir,?config(priv_dir, Config)}|Opts0],
?line ok = file:write_file(File, Test),
?line case compile:file(File, Opts) of
{ok, _M, _Ws} -> ok;
_ -> error
end.
filename(Name, Config) when is_atom(Name) ->
filename(atom_to_list(Name), Config);
filename(Name, Config) ->
filename:join(?config(priv_dir, Config), Name).
start_node(Name, Xargs) ->
?line N = test_server:start_node(Name, slave, [{args, " " ++ Xargs}]),
global:sync(),
N.
