%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2005-2012. 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/. %% %% 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. %% %% %CopyrightEnd% %% -module(bs_match_SUITE). -compile(nowarn_shadow_vars). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, fun_shadow/1,int_float/1,otp_5269/1,null_fields/1,wiger/1, bin_tail/1,save_restore/1,shadowed_size_var/1, partitioned_bs_match/1,function_clause/1, unit/1,shared_sub_bins/1,bin_and_float/1, dec_subidentifiers/1,skip_optional_tag/1, wfbm/1,degenerated_match/1,bs_sum/1,coverage/1, multiple_uses/1,zero_label/1,followed_by_catch/1, matching_meets_construction/1,simon/1,matching_and_andalso/1, otp_7188/1,otp_7233/1,otp_7240/1,otp_7498/1, match_string/1,zero_width/1,bad_size/1,haystack/1, cover_beam_bool/1,matched_out_size/1]). -export([coverage_id/1,coverage_external_ignore/2]). -include_lib("test_server/include/test_server.hrl"). suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> test_lib:recompile(?MODULE), [{group,p}]. groups() -> [{p,test_lib:parallel(), [fun_shadow,int_float,otp_5269,null_fields,wiger, bin_tail,save_restore,shadowed_size_var, partitioned_bs_match,function_clause,unit, shared_sub_bins,bin_and_float,dec_subidentifiers, skip_optional_tag,wfbm,degenerated_match,bs_sum, coverage,multiple_uses,zero_label,followed_by_catch, matching_meets_construction,simon, matching_and_andalso,otp_7188,otp_7233,otp_7240, otp_7498,match_string,zero_width,bad_size,haystack, cover_beam_bool,matched_out_size]}]. init_per_suite(Config) -> Config. end_per_suite(_Config) -> ok. init_per_group(_GroupName, Config) -> Config. end_per_group(_GroupName, Config) -> Config. init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) -> Dog = test_server:timetrap(?t:minutes(1)), [{watchdog,Dog}|Config]. end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) -> Dog = ?config(watchdog, Config), ?t:timetrap_cancel(Dog), ok. fun_shadow(Config) when is_list(Config) -> %% OTP-5270 ?line 7 = fun_shadow_1(), ?line 7 = fun_shadow_2(8), ?line 7 = fun_shadow_3(), ?line no = fun_shadow_4(8), ok. fun_shadow_1() -> L = 8, F = fun(<<L:L,B:L>>) -> B end, F(<<16:8, 7:16>>). fun_shadow_2(L) -> F = fun(<<L:L,B:L>>) -> B end, F(<<16:8, 7:16>>). fun_shadow_3() -> L = 8, F = fun(<<L:L,B:L,L:L>>) -> B end, F(<<16:8, 7:16,16:16>>). fun_shadow_4(L) -> F = fun(<<L:L,B:L,L:L>>) -> B; (_) -> no end, F(<<16:8, 7:16,15:16>>). int_float(Config) when is_list(Config) -> %% OTP-5323 ?line <<103133.0:64/float>> = <<103133:64/float>>, ?line <<103133:64/float>> = <<103133:64/float>>, ok. %% Stolen from erl_eval_SUITE and modified. %% OTP-5269. Bugs in the bit syntax. otp_5269(Config) when is_list(Config) -> ?line check(fun() -> L = 8, F = fun(<<A:L,B:A>>) -> B end, F(<<16:8, 7:16>>) end, 7), ?line check(fun() -> L = 8, <<A:L,B:A>> = <<16:8, 7:16>>, B end, 7), ?line check(fun() -> U = 8, (fun(<<U:U>>) -> U end)(<<32:8>>) end, 32), ?line check(fun() -> U = 8, [U || <<U:U>> <- [<<32:8>>]] end, [32]), ?line check(fun() -> [X || <<A:8, B:A>> <- [<<16:8,19:16>>], <<X:8>> <- [<<B:8>>]] end, [19]), ?line check(fun() -> A = 4, B = 28, bit_size(<<13:(A+(X=B))>>), X end, 28), ?line check(fun() -> <<Size,B:Size/binary,Rest/binary>> = <<2,"AB","CD">>, {Size,B,Rest} end, {2,<<"AB">>,<<"CD">>}), ?line check(fun() -> X = 32, [X || <<X:X>> <- [<<1:32>>,<<2:32>>,<<3:8>>]] end, %% "binsize variable" ^ [1,2]), ?line check(fun() -> (fun (<<A:1/binary, B:8/integer, _C:B/binary>>) -> case A of B -> wrong; _ -> ok end end)(<<1,2,3,4>>) end, ok), ok. null_fields(Config) when is_list(Config) -> ?line check(fun() -> W = id(0), F = fun(<<_:W>>) -> tail; (<<>>) -> empty end, F(<<>>) end, tail), ?line check(fun() -> F = fun(<<_/binary>>) -> tail; (<<>>) -> empty end, F(<<>>) end, tail), ok. wiger(Config) when is_list(Config) -> ?line ok1 = wcheck(<<3>>), ?line ok2 = wcheck(<<1,2,3>>), ?line ok3 = wcheck(<<4>>), ?line {error,<<1,2,3,4>>} = wcheck(<<1,2,3,4>>), ?line {error,<<>>} = wcheck(<<>>), ok. wcheck(<<A>>) when A==3-> ok1; wcheck(<<_,_:2/binary>>) -> ok2; wcheck(<<_>>) -> ok3; wcheck(Other) -> {error,Other}. bin_tail(Config) when is_list(Config) -> S = <<"abcde">>, ?line $a = bin_tail_c(S, 0), ?line $c = bin_tail_c(S, 2), ?line $e = bin_tail_c(S, 4), ?line {'EXIT',_} = (catch bin_tail_c(S, 5)), ?line {'EXIT',_} = (catch bin_tail_c_var(S, 5)), ?line $a = bin_tail_d(S, 0), ?line $b = bin_tail_d(S, 8), ?line $d = bin_tail_d(S, 3*8), ?line {'EXIT',_} = (catch bin_tail_d_dead(S, 1)), ?line {'EXIT',_} = (catch bin_tail_d_dead(S, 9)), ?line {'EXIT',_} = (catch bin_tail_d_dead(S, 5*8)), ?line {'EXIT',_} = (catch bin_tail_d_var(S, 1)), ?line ok = bin_tail_e(<<2:2,0:1,1:5>>), ?line ok = bin_tail_e(<<2:2,1:1,1:5,42:64>>), ?line error = bin_tail_e(<<3:2,1:1,1:5,42:64>>), ?line error = bin_tail_e(<<>>), ok. bin_tail_c(Bin, Offset) -> Res = bin_tail_c_dead(Bin, Offset), <<_:Offset/binary,_,Tail/binary>> = Bin, {Res,Tail} = bin_tail_c_var(Bin, Offset), Res. bin_tail_c_dead(Bin, Offset) -> <<_:Offset/binary,C,_/binary>> = Bin, C. bin_tail_c_var(Bin, Offset) -> <<_:Offset/binary,C,Tail/binary>> = Bin, {C,Tail}. bin_tail_d(Bin, BitOffset) -> Res = bin_tail_d_dead(Bin, BitOffset), <<_:BitOffset,_:8,Tail/binary>> = Bin, {Res,Tail} = bin_tail_d_var(Bin, BitOffset), Res. bin_tail_d_dead(Bin, BitOffset) -> <<_:BitOffset,C,_/binary>> = Bin, C. bin_tail_d_var(Bin, BitOffset) -> <<_:BitOffset,C,Tail/binary>> = Bin, {C,Tail}. bin_tail_e(Bin) -> case bin_tail_e_dead(Bin) of ok -> <<_,Tail/binary>> = Bin, Tail = bin_tail_e_var(Bin), ok; error -> bin_tail_e_var(Bin) end. bin_tail_e_dead(Bin) -> case Bin of %% The binary is aligned at the end; neither the bs_skip_bits2 nor %% bs_test_tail2 instructions are needed. <<2:2,_:1,1:5,_/binary>> -> ok; _ -> error end. bin_tail_e_var(Bin) -> case Bin of %% The binary is aligned at the end; neither the bs_skip_bits2 nor %% bs_test_tail2 instructions are needed. <<2:2,_:1,1:5,Tail/binary>> -> Tail; _ -> error end. save_restore(Config) when is_list(Config) -> ?line 0 = save_restore_1(<<0:2,42:6>>), ?line {1,3456} = save_restore_1(<<1:2,3456:14>>), ?line {2,7981234} = save_restore_1(<<2:2,7981234:30>>), ?line {3,763967493838} = save_restore_1(<<0:2,763967493838:62>>), A = <<" x">>, B = <<".x">>, C = <<"-x">>, ?line {" ",<<"x">>} = lll(A), ?line {" ",<<"x">>} = mmm(A), ?line {" ",<<"x">>} = nnn(A), ?line {" ",<<"x">>} = ooo(A), ?line {".",<<"x">>} = lll(B), ?line {".",<<"x">>} = mmm(B), ?line {".",<<"x">>} = nnn(B), ?line {".",<<"x">>} = ooo(B), ?line {"-",<<"x">>} = lll(C), ?line {"-",<<"x">>} = mmm(C), ?line {"-",<<"x">>} = nnn(C), ?line {"-",<<"x">>} = ooo(C), Bin = <<-1:64>>, case bad_float_unpack_match(Bin) of -1 -> ok; _Other -> ?line ?t:fail(bad_return_value_probably_NaN) end. save_restore_1(Bin) -> case Bin of <<0:2,_:6>> -> 0; <<1:2,A:14>> -> {1,A}; <<2:2,A:30>> -> {2,A}; <<A:64>> -> {3,A} end. lll(<<Char, Tail/binary>>) -> {[Char],Tail}. mmm(<<$.,$.,$., Tail/binary>>) -> Tail; mmm(<<$\s,$-,$\s, Tail/binary>>) -> Tail; mmm(<<Char, Tail/binary>>) -> {[Char],Tail}. %% Buggy Tail! nnn(<<"...", Tail/binary>>) -> Tail; nnn(<<" - ", Tail/binary>>) -> Tail; nnn(<<Char, Tail/binary>>) -> {[Char],Tail}. %% Buggy Tail! ooo(<<" - ", Tail/binary>>) -> Tail; ooo(<<Char, Tail/binary>>) -> {[Char],Tail}. bad_float_unpack_match(<<F:64/float>>) -> F; bad_float_unpack_match(<<I:64/integer-signed>>) -> I. shadowed_size_var(Config) when is_list(Config) -> ?line PrivDir = ?config(priv_dir, Config), ?line Dir = filename:dirname(code:which(?MODULE)), ?line Core = filename:join(Dir, "bs_shadowed_size_var"), ?line Opts = [from_core,{outdir,PrivDir}|test_lib:opt_opts(?MODULE)], ?line io:format("~p", [Opts]), ?line {ok,Mod} = c:c(Core, Opts), ?line [42|<<"abcde">>] = Mod:filter_essentials([<<42:32>>|<<5:32,"abcde">>]), ok. partitioned_bs_match(Config) when is_list(Config) -> ?line <<1,2,3>> = partitioned_bs_match(blurf, <<42,1,2,3>>), ?line error = partitioned_bs_match(10, <<7,8,15,13>>), ?line error = partitioned_bs_match(100, {a,tuple,is,'not',a,binary}), ?line ok = partitioned_bs_match(0, <<>>), ?line fc(partitioned_bs_match, [-1,blurf], catch partitioned_bs_match(-1, blurf)), ?line fc(partitioned_bs_match, [-1,<<1,2,3>>], catch partitioned_bs_match(-1, <<1,2,3>>)), ?line {17,<<1,2,3>>} = partitioned_bs_match_2(1, <<17,1,2,3>>), ?line {7,<<1,2,3>>} = partitioned_bs_match_2(7, <<17,1,2,3>>), ?line fc(partitioned_bs_match_2, [4,<<0:17>>], catch partitioned_bs_match_2(4, <<0:17>>)), anything = partitioned_bs_match_3(anything, <<42>>), ok = partitioned_bs_match_3(1, 2), ok. partitioned_bs_match(_, <<42:8,T/binary>>) -> T; partitioned_bs_match(N, _) when N > 0 -> error; partitioned_bs_match(_, <<>>) -> ok. partitioned_bs_match_2(1, <<B:8,T/binary>>) -> {B,T}; partitioned_bs_match_2(Len, <<_:8,T/binary>>) -> {Len,T}. partitioned_bs_match_3(Var, <<_>>) -> Var; partitioned_bs_match_3(1, 2) -> ok. function_clause(Config) when is_list(Config) -> ?line ok = function_clause_1(<<0,7,0,7,42>>), ?line fc(function_clause_1, [<<0,1,2,3>>], catch function_clause_1(<<0,1,2,3>>)), ?line fc(function_clause_1, [<<0,1,2,3>>], catch function_clause_1(<<0,7,0,1,2,3>>)), ok. function_clause_1(<<0:8,7:8,T/binary>>) -> function_clause_1(T); function_clause_1(<<_:8>>) -> ok. unit(Config) when is_list(Config) -> ?line 42 = peek1(<<42>>), ?line 43 = peek1(<<43,1,2>>), ?line 43 = peek1(<<43,1,2,(-1):1>>), ?line 43 = peek1(<<43,1,2,(-1):2>>), ?line 43 = peek1(<<43,1,2,(-1):7>>), ?line 99 = peek8(<<99>>), ?line 100 = peek8(<<100,101>>), ?line fc(peek8, [<<100,101,0:1>>], catch peek8(<<100,101,0:1>>)), ?line 37484 = peek16(<<37484:16>>), ?line 37489 = peek16(<<37489:16,5566:16>>), ?line fc(peek16, [<<8>>], catch peek16(<<8>>)), ?line fc(peek16, [<<42:15>>], catch peek16(<<42:15>>)), ?line fc(peek16, [<<1,2,3,4,5>>], catch peek16(<<1,2,3,4,5>>)), ?line 127 = peek7(<<127:7>>), ?line 100 = peek7(<<100:7,19:7>>), ?line fc(peek7, [<<1,2>>], catch peek7(<<1,2>>)), ok. peek1(<<B:8,_/bitstring>>) -> B. peek7(<<B:7,_/binary-unit:7>>) -> B. peek8(<<B:8,_/binary>>) -> B. peek16(<<B:16,_/binary-unit:16>>) -> B. shared_sub_bins(Config) when is_list(Config) -> ?line {15,[<<>>,<<5>>,<<4,5>>,<<3,4,5>>,<<2,3,4,5>>]} = sum(<<1,2,3,4,5>>, [], 0), ok. sum(<<B,T/binary>>, Acc, Sum) -> sum(T, [T|Acc], Sum+B); sum(<<>>, Last, Sum) -> {Sum,Last}. bin_and_float(Config) when is_list(Config) -> ?line 14.0 = bin_and_float(<<1.0/float,2.0/float,3.0/float>>, 0.0), ok. bin_and_float(<<X/float,Y/float,Z/float,T/binary>>, Sum) when is_float(X), is_float(Y), is_float(Z) -> bin_and_float(T, Sum+X*X+Y*Y+Z*Z); bin_and_float(<<>>, Sum) -> Sum. dec_subidentifiers(Config) when is_list(Config) -> ?line {[],<<1,2,3>>} = do_dec_subidentifiers(<<1:1,42:7,1:1,99:7,1,2,3>>, 0, [], 2), ?line {[5389],<<1,2,3>>} = do_dec_subidentifiers(<<1:1,42:7,0:1,13:7,1,2,3>>, 0, [], 2), ?line {[3,2,1],not_a_binary} = dec_subidentifiers(not_a_binary, any, [1,2,3], 0), ok. do_dec_subidentifiers(Buffer, Av, Al, Len) -> Res = dec_subidentifiers(Buffer, Av, Al, Len), Res = dec_subidentifiers2(Buffer, Av, Al, Len), Res = dec_subidentifiers4(Buffer, Av, Al, Len), Res = dec_subidentifiers3(Buffer, Av, Al, Len). dec_subidentifiers(Buffer, _Av, Al, 0) -> {lists:reverse(Al),Buffer}; dec_subidentifiers(<<1:1,H:7,T/binary>>, Av, Al, Len) -> dec_subidentifiers(T, (Av bsl 7) bor H, Al, Len-1); dec_subidentifiers(<<H,T/binary>>, Av, Al, Len) -> dec_subidentifiers(T, 0, [((Av bsl 7) bor H)|Al], Len-1). dec_subidentifiers2(<<Buffer/binary>>, _Av, Al, 0) -> {lists:reverse(Al),Buffer}; dec_subidentifiers2(<<1:1,H:7,T/binary>>, Av, Al, Len) -> dec_subidentifiers2(T, (Av bsl 7) bor H, Al, Len-1); dec_subidentifiers2(<<H,T/binary>>, Av, Al, Len) -> dec_subidentifiers2(T, 0, [((Av bsl 7) bor H)|Al], Len-1). dec_subidentifiers3(Buffer, _Av, Al, 0) when is_binary(Buffer) -> {lists:reverse(Al),Buffer}; dec_subidentifiers3(<<1:1,H:7,T/binary>>, Av, Al, Len) -> dec_subidentifiers3(T, (Av bsl 7) bor H, Al, Len-1); dec_subidentifiers3(<<H,T/binary>>, Av, Al, Len) -> dec_subidentifiers3(T, 0, [((Av bsl 7) bor H)|Al], Len-1). dec_subidentifiers4(<<1:1,H:7,T/binary>>, Av, Al, Len) when Len =/= 0 -> dec_subidentifiers4(T, (Av bsl 7) bor H, Al, Len-1); dec_subidentifiers4(<<H,T/binary>>, Av, Al, Len) when Len =/= 0 -> dec_subidentifiers4(T, 0, [((Av bsl 7) bor H)|Al], Len-1); dec_subidentifiers4(Buffer, _Av, Al, 0) -> {lists:reverse(Al),Buffer}. skip_optional_tag(Config) when is_list(Config) -> {ok,<<>>} = skip_optional_tag(<<42>>, <<42>>), {ok,<<>>} = skip_optional_tag(<<42,1>>, <<42,1>>), {ok,<<1,2,3>>} = skip_optional_tag(<<42>>, <<42,1,2,3>>), missing = skip_optional_tag(<<2:3>>, blurf), ok. skip_optional_tag(<<>>, Binary) -> {ok,Binary}; skip_optional_tag(<<Tag,RestTag/binary>>, <<Tag,Rest/binary>>) -> skip_optional_tag(RestTag, Rest); skip_optional_tag(_, _) -> missing. -define(DATELEN, 16). wfbm(Config) when is_list(Config) -> %% check_for_dot_or_space and get_tail is from wfbm4 by Steve Vinoski, %% with modifications. ?line {nomatch,0} = check_for_dot_or_space(<<" ">>), ?line {nomatch,0} = check_for_dot_or_space(<<" abc">>), ?line {ok,<<"abcde">>} = check_for_dot_or_space(<<"abcde 34555">>), ?line {nomatch,0} = check_for_dot_or_space(<<".gurka">>), ?line {nomatch,1} = check_for_dot_or_space(<<"g.urka">>), ?line nomatch = get_tail(<<>>), ?line {ok,<<"2007/10/23/blurf">>} = get_tail(<<"200x/2007/10/23/blurf ">>), ?line {skip,?DATELEN+5} = get_tail(<<"200x/2007/10/23/blurf.">>), ?line nomatch = get_tail(<<"200y.2007.10.23.blurf ">>), ?line {'EXIT',_} = (catch get_tail({no,binary,at,all})), ?line {'EXIT',_} = (catch get_tail(no_binary)), ok. check_for_dot_or_space(Bin) -> check_for_dot_or_space(Bin, 0). check_for_dot_or_space(<<$\s, _/binary>>, 0) -> {nomatch,0}; check_for_dot_or_space(Bin, Len) -> case Bin of <<Front:Len/binary, $\s, _/binary>> -> {ok,Front}; <<_:Len/binary, $., _/binary>> -> {nomatch,Len}; _ -> check_for_dot_or_space(Bin, Len+1) end. get_tail(<<>>) -> nomatch; get_tail(Bin) -> <<Front:?DATELEN/binary, Tail/binary>> = Bin, case Front of <<_:3/binary,"x/",Y:4/binary,$/,M:2/binary,$/,D:2/binary,$/>> -> case check_for_dot_or_space(Tail) of {ok,Match} -> {ok,<<Y/binary,$/,M/binary,$/,D/binary,$/, Match/binary>>}; {nomatch,Skip} -> {skip,?DATELEN + Skip} end; _ -> nomatch end. degenerated_match(Config) when is_list(Config) -> ?line error = degenerated_match_1(<<>>), ?line 1 = degenerated_match_1(<<1:1>>), ?line 2 = degenerated_match_1(<<42,43>>), ?line error = degenerated_match_2(<<>>), ?line no_split = degenerated_match_2(<<1,2>>), ?line {<<1,2,3,4>>,<<5>>} = degenerated_match_2(<<1,2,3,4,5>>), ok. degenerated_match_1(<<>>) -> error; degenerated_match_1(Bin) -> byte_size(Bin). degenerated_match_2(<<>>) -> error; degenerated_match_2(Bin) -> case byte_size(Bin) > 4 of true -> split_binary(Bin, 4); false -> no_split end. bs_sum(Config) when is_list(Config) -> ?line 0 = bs_sum_1([]), ?line 0 = bs_sum_1(<<>>), ?line 42 = bs_sum_1([42]), ?line 1 = bs_sum_1(<<1>>), ?line 10 = bs_sum_1([1,2,3,4]), ?line 15 = bs_sum_1(<<1,2,3,4,5>>), ?line 21 = bs_sum_1([1,2,3|<<4,5,6>>]), ?line 15 = bs_sum_1([1,2,3|{4,5}]), ?line 6 = bs_sum_1([1,2,3|zero]), ?line 6 = bs_sum_1([1,2,3|0]), ?line 7 = bs_sum_1([1,2,3|one]), ?line fc(catch bs_sum_1({too,big,tuple})), ?line fc(catch bs_sum_1([1,2,3|{too,big,tuple}])), ?line [] = sneaky_alias(<<>>), ?line [559,387655] = sneaky_alias(id(<<559:32,387655:32>>)), ?line fc(sneaky_alias, [<<1>>], catch sneaky_alias(id(<<1>>))), ?line fc(sneaky_alias, [[1,2,3,4]], catch sneaky_alias(lists:seq(1, 4))), ok. bs_sum_1(<<H,T/binary>>) -> H+bs_sum_1(T); bs_sum_1([H|T]) -> H+bs_sum_1(T); bs_sum_1({A,B}=_Tuple=_AliasForNoGoodReason) -> A+B; bs_sum_1(0) -> 0; bs_sum_1(zero=_Zero) -> 0; bs_sum_1(one) -> 1; bs_sum_1([]) -> 0; bs_sum_1(<<>>) -> 0. sneaky_alias(<<>>=L) -> binary_to_list(L); sneaky_alias(<<From:32,L/binary>>) -> [From|sneaky_alias(L)]. coverage(Config) when is_list(Config) -> ?line 0 = coverage_fold(fun(B, A) -> A+B end, 0, <<>>), ?line 6 = coverage_fold(fun(B, A) -> A+B end, 0, <<1,2,3>>), ?line fc(catch coverage_fold(fun(B, A) -> A+B end, 0, [a,b,c])), ?line {<<42.0:64/float>>,float} = coverage_build(<<>>, <<42>>, float), ?line {<<>>,not_a_tuple} = coverage_build(<<>>, <<>>, not_a_tuple), ?line {<<16#76,"abc",16#A9,"abc">>,{x,42,43}} = coverage_build(<<>>, <<16#7,16#A>>, {x,y,z}), ?line [<<2>>,<<1>>] = coverage_bc(<<1,2>>, []), ?line {x,<<"abc">>,z} = coverage_setelement(<<2,"abc">>, {x,y,z}), ?line [42] = coverage_apply(<<42>>, [coverage_id]), ?line 42 = coverage_external(<<42>>), ?line do_coverage_bin_to_term_list([]), ?line do_coverage_bin_to_term_list([lists:seq(0, 10),{a,b,c},<<23:42>>]), ?line fc(coverage_bin_to_term_list, [<<0,0,0,7>>], catch do_coverage_bin_to_term_list_1(<<7:32>>)), ?line <<>> = coverage_per_key(<<4:32>>), ?line <<$a,$b,$c>> = coverage_per_key(<<7:32,"abc">>), ok. coverage_fold(Fun, Acc, <<H,T/binary>>) -> IdFun = fun id/1, coverage_fold(Fun, Fun(IdFun(H), IdFun(Acc)), T); coverage_fold(Fun, Acc, <<>>) when is_function(Fun, 2) -> Acc. coverage_build(Acc0, <<H,T/binary>>, float) -> Float = id(<<H:64/float>>), Acc = <<Acc0/binary,Float/binary>>, coverage_build(Acc, T, float); coverage_build(Acc0, <<H,T/binary>>, Tuple0) -> Str = id(<<H:(id(4)),(H-1):4,"abc">>), Acc = id(<<Acc0/bitstring,Str/bitstring>>), Tuple = setelement(2, setelement(3, Tuple0, 43), 42), if byte_size(Acc) > 0 -> coverage_build(Acc, T, Tuple) end; coverage_build(Acc, <<>>, Tuple) -> {Acc,Tuple}. coverage_bc(<<H,T/binary>>, Acc) -> B = << <<C:8>> || C <- [H] >>, coverage_bc(T, [B|Acc]); coverage_bc(<<>>, Acc) -> Acc. coverage_setelement(<<H,T1/binary>>, Tuple) when element(1, Tuple) =:= x -> setelement(H, Tuple, T1). coverage_apply(<<H,T/binary>>, [F|Fs]) -> [?MODULE:F(H)|coverage_apply(T, Fs)]; coverage_apply(<<>>, []) -> []. coverage_external(<<H,T/binary>>) -> ?MODULE:coverage_external_ignore(T, T), H. coverage_external_ignore(_, _) -> ok. coverage_id(I) -> id(I). do_coverage_bin_to_term_list(L) -> Bin = << <<(begin BinTerm = term_to_binary(Term), <<(byte_size(BinTerm)):32,BinTerm/binary>> end)/binary>> || Term <- L >>, L = do_coverage_bin_to_term_list_1(Bin), L = do_coverage_bin_to_term_list_1(<<Bin/binary,7:32,"garbage">>), L = do_coverage_bin_to_term_list_1(<<7:32,"garbage",Bin/binary>>). do_coverage_bin_to_term_list_1(Bin) -> Res = coverage_bin_to_term_list(Bin), Res = coverage_bin_to_term_list(Bin, []), Res = coverage_bin_to_term_list_catch(Bin), Res = coverage_bin_to_term_list_catch(Bin, []). coverage_bin_to_term_list(<<Sz:32,BinTerm:Sz/binary,T/binary>>) -> try binary_to_term(BinTerm) of Term -> [Term|coverage_bin_to_term_list(T)] catch error:badarg -> coverage_bin_to_term_list(T) end; coverage_bin_to_term_list(<<>>) -> []. coverage_bin_to_term_list(<<Sz:32,BinTerm:Sz/binary,T/binary>>, Acc) -> try binary_to_term(BinTerm) of Term -> coverage_bin_to_term_list(T, [Term|Acc]) catch error:badarg -> coverage_bin_to_term_list(T, Acc) end; coverage_bin_to_term_list(<<>>, Acc) -> lists:reverse(Acc). coverage_bin_to_term_list_catch(<<Sz:32,BinTerm:Sz/binary,T/binary>>) -> case catch binary_to_term(BinTerm) of {'EXIT',_} -> coverage_bin_to_term_list_catch(T); Term -> [Term|coverage_bin_to_term_list_catch(T)] end; coverage_bin_to_term_list_catch(<<>>) -> []. coverage_bin_to_term_list_catch(<<Sz:32,BinTerm:Sz/binary,T/binary>>, Acc) -> case catch binary_to_term(BinTerm) of {'EXIT',_} -> coverage_bin_to_term_list_catch(T, Acc); Term -> coverage_bin_to_term_list_catch(T, [Term|Acc]) end; coverage_bin_to_term_list_catch(<<>>, Acc) -> lists:reverse(Acc). coverage_per_key(<<BinSize:32,Bin/binary>> = B) -> true = (byte_size(B) =:= BinSize), Bin. multiple_uses(Config) when is_list(Config) -> ?line {344,62879,345,<<245,159,1,89>>} = multiple_uses_1(<<1,88,245,159,1,89>>), ?line true = multiple_uses_2(<<0,0,197,18>>), ?line <<42,43>> = multiple_uses_3(<<0,0,42,43>>, fun id/1), ok. multiple_uses_1(<<X:16,Tail/binary>>) -> %% NOT OPTIMIZED: sub binary is matched or used in more than one place {Y,Z} = multiple_uses_match(Tail), {X,Y,Z,Tail}. multiple_uses_2(<<_:16,Tail/binary>>) -> %% NOT OPTIMIZED: sub binary is matched or used in more than one place multiple_uses_cmp(Tail, Tail). multiple_uses_3(<<_:16,Tail/binary>>, Fun) -> %% NOT OPTIMIZED: sub binary is used or returned Fun(Tail). multiple_uses_match(<<Y:16,Z:16>>) -> {Y,Z}. multiple_uses_cmp(<<Y:16>>, <<Y:16>>) -> true; multiple_uses_cmp(<<_:16>>, <<_:16>>) -> false. zero_label(Config) when is_list(Config) -> ?line <<"nosemouth">> = read_pols(<<"FACE","nose","mouth">>), ?line <<"CE">> = read_pols(<<"noFACE">>), ok. read_pols(Data) -> <<PolygonType:4/binary,Rest/binary>> = Data, %% Intentional warning. (PolygonType == <<"FACE">>) or (PolygonType == <<"PTCH">>), Rest. followed_by_catch(Config) when is_list(Config) -> ok = handle(<<0,1,2,3,4,5>>). -record(rec,{field}). handle(<<>>) -> ok; handle(Msg) -> <<_DataLen:16, Rest/binary>> = Msg, case catch fooX:func() of [X] -> X#rec.field; _ -> ok end, handle(Rest). matching_meets_construction(Config) when is_list(Config) -> Bin = id(<<"abc">>), Len = id(2), Tail0 = id(<<1,2,3,4,5>>), ?line <<_:Len/binary,Tail/binary>> = Tail0, ?line Res = <<Tail/binary,Bin/binary>>, ?line <<3,4,5,"abc">> = Res, ?line {'EXIT',{badarg,_}} = (catch matching_meets_construction_1(<<"Abc">>)), ?line {'EXIT',{badarg,_}} = (catch matching_meets_construction_2(<<"Abc">>)), ?line <<"Bbc">> = matching_meets_construction_3(<<"Abc">>), ?line <<1,2>> = encode_octet_string(<<1,2,3>>, 2), ok. matching_meets_construction_1(<<"A",H/binary>>) -> <<"B",H>>. matching_meets_construction_2(<<"A",H/binary>>) -> <<"B",H/float>>. matching_meets_construction_3(<<"A",H/binary>>) -> <<"B",H/binary>>. encode_octet_string(<<OctetString/binary>>, Len) -> <<OctetString:Len/binary-unit:8>>. simon(Config) when is_list(Config) -> ?line one = simon(blurf, <<>>), ?line two = simon(0, <<42>>), ?line fc(simon, [17,<<1>>], catch simon(17, <<1>>)), ?line fc(simon, [0,<<1,2,3>>], catch simon(0, <<1,2,3>>)), ?line one = simon2(blurf, <<9>>), ?line two = simon2(0, <<9,1>>), ?line fc(simon2, [0,<<9,10,11>>], catch simon2(0, <<9,10,11>>)), ok. simon(_, <<>>) -> one; simon(0, <<_>>) -> two. simon2(_, <<9>>) -> one; simon2(0, <<_:16>>) -> two. %% OTP-7113: Crash in v3_codegen. matching_and_andalso(Config) when is_list(Config) -> ?line ok = matching_and_andalso_1(<<1,2,3>>, 3), ?line {'EXIT',{function_clause,_}} = (catch matching_and_andalso_1(<<1,2,3>>, -8)), ?line {'EXIT',{function_clause,_}} = (catch matching_and_andalso_1(<<1,2,3>>, blurf)), ?line {'EXIT',{function_clause,_}} = (catch matching_and_andalso_1(<<1,2,3>>, 19)), {"abc",<<"xyz">>} = matching_and_andalso_2("abc", <<"-xyz">>), {"abc",<<"">>} = matching_and_andalso_2("abc", <<($a-1)>>), {"abc",<<"">>} = matching_and_andalso_2("abc", <<($z+1)>>), {"abc",<<"">>} = matching_and_andalso_2("abc", <<($A-1)>>), {"abc",<<"">>} = matching_and_andalso_2("abc", <<($Z+1)>>), error = matching_and_andalso_2([], <<>>), error = matching_and_andalso_2([], <<$A>>), error = matching_and_andalso_2([], <<$Z>>), error = matching_and_andalso_2([], <<$a>>), error = matching_and_andalso_2([], <<$z>>), ok. matching_and_andalso_1(<<Bitmap/binary>>, K) when is_integer(K) andalso size(Bitmap) >= K andalso 0 < K -> ok. matching_and_andalso_2(Datetime, <<H,T/binary>>) when not ((H >= $a) andalso (H =< $z)) andalso not ((H >= $A) andalso (H =< $Z)) -> {Datetime,T}; matching_and_andalso_2(_, _) -> error. %% Thanks to Tomas Stejskal. otp_7188(Config) when is_list(Config) -> MP3 = <<84,65,71,68,117,154,105,232,107,121,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,68,97,110,105,101,108,32,76, 97,110,100,97,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,66, 101,115,116,32,79,102,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,50,48,48,48,50,48,48,48,32,45,32,66,101,115, 116,32,79,102,32,32,32,32,32,32,32,32,32,32,32,32,32,32, 32,32,12>>, ?line {ok,{"ID3v1", [{title,<<68,117,154,105,232,107,121>>}, {artist,<<"Daniel Landa">>}, {album,<<"Best Of">>}]}} = parse_v1_or_v11_tag(MP3). parse_v1_or_v11_tag(<<"TAG", Title:30/binary, Artist:30/binary, Album:30/binary, _Year:4/binary, _Comment:28/binary, 0:8, Track:8, _Genre:8>>) -> {ok, {"ID3v1.1", [{track, Track}, {title, trim(Title)}, {artist, trim(Artist)}, {album, trim(Album)}]}}; parse_v1_or_v11_tag(<<"TAG", Title:30/binary, Artist:30/binary, Album:30/binary, _Year:4/binary, _Comment:30/binary, _Genre:8>>) -> {ok, {"ID3v1", [{title, trim(Title)}, {artist, trim(Artist)}, {album, trim(Album)}]}}; parse_v1_or_v11_tag(_) -> error. trim(Bin) -> list_to_binary(trim_blanks(binary_to_list(Bin))). trim_blanks(L) -> lists:reverse(skip_blanks_and_zero(lists:reverse(L))). skip_blanks_and_zero([$\s|T]) -> skip_blanks_and_zero(T); skip_blanks_and_zero([0|T]) -> skip_blanks_and_zero(T); skip_blanks_and_zero(L) -> L. %% OTP-7233. Record and binary matching optimizations clashed. %% Thanks to Vladimir Klebansky. -record(rec_otp_7233, {key, val}). otp_7233(Config) when is_list(Config) -> ?line otp_7233_1(#rec_otp_7233{key = <<"XXabcde">>,val=[{"xxxxxxxx",42}]}), ?line [<<"XXabcde">>,{"xxxxxxxx",42}] = get(io_format), erase(io_format), ?line otp_7233_1(#rec_otp_7233{key = <<"XXabcde">>,val=[]}), ?line undefined = get(io_format), ok. otp_7233_1(Rec) -> <<K:2/binary,_Rest:5/binary>> = Rec#rec_otp_7233.key, case K of <<"XX">> -> Value = Rec#rec_otp_7233.val, case lists:keysearch("xxxxxxxx", 1, Value) of {value,T} -> put(io_format, [Rec#rec_otp_7233.key,T]); false -> ok end; _ -> ok end. otp_7240(Config) when is_list(Config) -> ?line a = otp_7240_a(0, <<>>), ?line b = otp_7240_a(1, 2), ?line a = otp_7240_b(anything, <<>>), ?line b = otp_7240_b(1, {x,y}), ?line a = otp_7240_c(anything, <<>>), ?line b = otp_7240_c(1, <<2>>), ?line a = otp_7240_d(anything, <<>>), ?line b = otp_7240_d(again, <<2>>), ?line a = otp_7240_e(anything, <<>>), ?line b = otp_7240_e(1, 41), ?line a = otp_7240_f(anything, <<>>), ?line b = otp_7240_f(1, {}), ok. otp_7240_a(_, <<>>) -> a; otp_7240_a(1, 2) -> b. otp_7240_b(_, <<>>) -> a; otp_7240_b(1, {_,_}) -> b. otp_7240_c(_, <<>>) -> a; otp_7240_c(1, <<2>>) -> b. otp_7240_d(_, <<>>) -> a; otp_7240_d(_, <<2>>) -> b. otp_7240_e(_, <<>>) -> a; otp_7240_e(1, B) when B < 42 -> b. otp_7240_f(_, <<>>) -> a; otp_7240_f(1, B) when is_tuple(B) -> b. otp_7498(Config) when is_list(Config) -> ?line <<1,2,3>> = otp_7498_foo(<<1,2,3>>, 0), ?line <<2,3>> = otp_7498_foo(<<1,2,3>>, 1), ?line <<1,2,3>> = otp_7498_foo(<<1,2,3>>, 2), ?line <<1,2,3>> = otp_7498_bar(<<1,2,3>>, 0), ?line <<2,3>> = otp_7498_bar(<<1,2,3>>, 1), ?line <<1,2,3>> = otp_7498_bar(<<1,2,3>>, 2), ?line <<>> = otp_7498_bar(<<>>, 2), ?line <<1,2,3>> = otp_7498_bar(<<1,2,3>>, 3), ok. otp_7498_foo(Bin, 0) -> otp_7498_foo(Bin, 42); otp_7498_foo(<<_A, Rest/bitstring>>, 1) -> otp_7498_foo(Rest, 43); otp_7498_foo(Bin, _I) -> Bin. otp_7498_bar(Bin, 0) -> otp_7498_bar(Bin, 42); otp_7498_bar(<<_A, Rest/bitstring>>, 1) -> otp_7498_bar(Rest, 43); otp_7498_bar(<<>>, 2) -> otp_7498_bar(<<>>, 44); otp_7498_bar(Bin, _I) -> Bin. match_string(Config) when is_list(Config) -> %% To make sure that native endian really is handled correctly %% (i.e. that the compiler does not attempt to use bs_match_string/4 %% instructions for native segments), running this test is not enough. %% Either examine the generated for do_match_string_native/1 or %% check the coverage for the v3_kernel module. case erlang:system_info(endian) of little -> ?line do_match_string_native(<<$a,0,$b,0>>); big -> ?line do_match_string_native(<<0,$a,0,$b>>) end, ?line do_match_string_big(<<0,$a,0,$b>>), ?line do_match_string_little(<<$a,0,$b,0>>), ?line do_match_string_big_signed(<<255,255>>), ?line do_match_string_little_signed(<<255,255>>), ?line plain = no_match_string_opt(<<"abc">>), ?line strange = no_match_string_opt(<<$a:9,$b:9,$c:9>>), ok. do_match_string_native(<<$a:16/native,$b:16/native>>) -> ok. do_match_string_big(<<$a:16/big,$b:16/big>>) -> ok. do_match_string_little(<<$a:16/little,$b:16/little>>) -> ok. do_match_string_big_signed(<<(-1):16/signed>>) -> ok. do_match_string_little_signed(<<(-1):16/little-signed>>) -> ok. no_match_string_opt(<<"abc">>) -> plain; no_match_string_opt(<<$a:9,$b:9,$c:9>>) -> strange. %% OTP-7591: A zero-width segment in matching would crash the compiler. zero_width(Config) when is_list(Config) -> ?line <<Len:16/little, Str:Len/binary, 0:0>> = <<2, 0, $h, $i, 0:0>>, ?line 2 = Len, ?line Str = <<"hi">>, %% Match sure that values that cannot fit in a segment will not match. case id(<<0:8>>) of <<256:8>> -> ?line ?t:fail(); _ -> ok end, ok. %% OTP_7650: A invalid size for binary segments could crash the compiler. bad_size(Config) when is_list(Config) -> Tuple = {a,b,c}, ?line {'EXIT',{{badmatch,<<>>},_}} = (catch <<32:Tuple>> = id(<<>>)), Binary = <<1,2,3>>, ?line {'EXIT',{{badmatch,<<>>},_}} = (catch <<32:Binary>> = id(<<>>)), ok. haystack(Config) when is_list(Config) -> ?line <<0:10/unit:8>> = haystack_1(<<0:10/unit:8>>), ?line [<<0:10/unit:8>>, <<0:20/unit:8>>] = haystack_2(<<1:8192>>), ok. %% Used to crash the compiler. haystack_1(Haystack) -> Subs = [10], [begin <<B:Y/binary>> = Haystack, B end || Y <- Subs], Haystack. %% There would be an incorrect badmatch exception. haystack_2(Haystack) -> Subs = [{687,10},{369,20}], [begin <<_:X/binary,B:Y/binary,_/binary>> = Haystack, B end || {X,Y} <- Subs ]. fc({'EXIT',{function_clause,_}}) -> ok; fc({'EXIT',{{case_clause,_},_}}) when ?MODULE =:= bs_match_inline_SUITE -> ok. fc(Name, Args, {'EXIT',{function_clause,[{?MODULE,Name,Args,_}|_]}}) -> ok; fc(Name, Args, {'EXIT',{function_clause,[{?MODULE,Name,Arity,_}|_]}}) when length(Args) =:= Arity -> true = test_server:is_native(?MODULE); fc(_, Args, {'EXIT',{{case_clause,ActualArgs},_}}) when ?MODULE =:= bs_match_inline_SUITE -> Args = tuple_to_list(ActualArgs). %% Cover the clause handling bs_context to binary in %% beam_block:initialized_regs/2. cover_beam_bool(Config) when is_list(Config) -> ?line ok = do_cover_beam_bool(<<>>, 3), ?line <<19>> = do_cover_beam_bool(<<19>>, 2), ?line <<42>> = do_cover_beam_bool(<<42>>, 1), ?line <<17>> = do_cover_beam_bool(<<13,17>>, 0), ok. do_cover_beam_bool(Bin, X) when X > 0 -> if X =:= 1; X =:= 2 -> Bin; true -> ok end; do_cover_beam_bool(<<_,Bin/binary>>, X) -> do_cover_beam_bool(Bin, X+1). matched_out_size(Config) when is_list(Config) -> {253,16#DEADBEEF} = mos_int(<<8,253,16#DEADBEEF:32>>), {6,16#BEEFDEAD} = mos_int(<<3,6:3,16#BEEFDEAD:32>>), {53,16#CAFEDEADBEEFCAFE} = mos_int(<<16,53:16,16#CAFEDEADBEEFCAFE:64>>), {23,16#CAFEDEADBEEFCAFE} = mos_int(<<5,23:5,16#CAFEDEADBEEFCAFE:64>>), {<<1,2,3>>,4} = mos_bin(<<3,1,2,3,4,3>>), {<<1,2,3,7>>,19,42} = mos_bin(<<4,1,2,3,7,19,4,42>>), <<1,2,3,7>> = mos_bin(<<4,1,2,3,7,"abcdefghij">>), ok. mos_int(<<L,I:L,X:32>>) -> {I,X}; mos_int(<<L,I:L,X:64>>) -> {I,X}. mos_bin(<<L,Bin:L/binary,X:8,L>>) -> L = byte_size(Bin), {Bin,X}; mos_bin(<<L,Bin:L/binary,X:8,L,Y:8>>) -> L = byte_size(Bin), {Bin,X,Y}; mos_bin(<<L,Bin:L/binary,"abcdefghij">>) -> L = byte_size(Bin), Bin. check(F, R) -> R = F(). id(I) -> I.