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-rw-r--r--lib/stdlib/src/eval_bits.erl64
-rw-r--r--lib/stdlib/test/erl_eval_SUITE.erl48
2 files changed, 103 insertions, 9 deletions
diff --git a/lib/stdlib/src/eval_bits.erl b/lib/stdlib/src/eval_bits.erl
index f40904df1c..e49cbc1fd1 100644
--- a/lib/stdlib/src/eval_bits.erl
+++ b/lib/stdlib/src/eval_bits.erl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2013. 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
@@ -67,7 +67,8 @@ expr_grp([], Bs0, _Lf, Acc) ->
{value,Acc,Bs0}.
eval_field({bin_element, _, {string, _, S}, default, default}, Bs0, _Fun) ->
- {list_to_binary(S),Bs0};
+ Latin1 = [C band 16#FF || C <- S],
+ {list_to_binary(Latin1),Bs0};
eval_field({bin_element, Line, {string, _, S}, Size0, Options0}, Bs, _Fun) ->
{_Size,[Type,_Unit,_Sign,Endian]} =
make_bit_type(Line, Size0, Options0),
@@ -162,8 +163,10 @@ bin_gen([], Bin, _Bs0, _BBs0, _Mfun, _Efun, false) ->
bin_gen_field({bin_element,_,{string,_,S},default,default},
Bin, Bs, BBs, _Mfun, _Efun) ->
- Bits = list_to_binary(S),
- Size = byte_size(Bits),
+ Bits = try list_to_binary(S)
+ catch _:_ -> <<>>
+ end,
+ Size = length(S),
case Bin of
<<Bits:Size/binary,Rest/bitstring>> ->
{match,Bs,BBs,Rest};
@@ -172,16 +175,42 @@ bin_gen_field({bin_element,_,{string,_,S},default,default},
_ ->
done
end;
+bin_gen_field({bin_element,Line,{string,SLine,S},Size0,Options0},
+ Bin0, Bs0, BBs0, Mfun, Efun) ->
+ {Size1, [Type,{unit,Unit},Sign,Endian]} =
+ make_bit_type(Line, Size0, Options0),
+ match_check_size(Mfun, Size1, BBs0),
+ {value, Size, _BBs} = Efun(Size1, BBs0),
+ F = fun(C, Bin, Bs, BBs) ->
+ bin_gen_field1(Bin, Type, Size, Unit, Sign, Endian,
+ {integer,SLine,C}, Bs, BBs, Mfun)
+ end,
+ bin_gen_field_string(S, Bin0, Bs0, BBs0, F);
bin_gen_field({bin_element,Line,VE,Size0,Options0},
Bin, Bs0, BBs0, Mfun, Efun) ->
{Size1, [Type,{unit,Unit},Sign,Endian]} =
make_bit_type(Line, Size0, Options0),
V = erl_eval:partial_eval(VE),
+ NewV = coerce_to_float(V, Type),
match_check_size(Mfun, Size1, BBs0),
{value, Size, _BBs} = Efun(Size1, BBs0),
+ bin_gen_field1(Bin, Type, Size, Unit, Sign, Endian, NewV, Bs0, BBs0, Mfun).
+
+bin_gen_field_string([], Rest, Bs, BBs, _F) ->
+ {match,Bs,BBs,Rest};
+bin_gen_field_string([C|Cs], Bin0, Bs0, BBs0, Fun) ->
+ case Fun(C, Bin0, Bs0, BBs0) of
+ {match,Bs,BBs,Rest} ->
+ bin_gen_field_string(Cs, Rest, Bs, BBs, Fun);
+ {nomatch,Rest} ->
+ {nomatch,Rest};
+ done ->
+ done
+ end.
+
+bin_gen_field1(Bin, Type, Size, Unit, Sign, Endian, NewV, Bs0, BBs0, Mfun) ->
case catch get_value(Bin, Type, Size, Unit, Sign, Endian) of
{Val,<<_/bitstring>>=Rest} ->
- NewV = coerce_to_float(V, Type),
case catch Mfun(match, {NewV,Val,Bs0}) of
{match,Bs} ->
BBs = add_bin_binding(Mfun, NewV, Bs, BBs0),
@@ -223,20 +252,41 @@ match_bits_1([F|Fs], Bits0, Bs0, BBs0, Mfun, Efun) ->
match_field_1({bin_element,_,{string,_,S},default,default},
Bin, Bs, BBs, _Mfun, _Efun) ->
- Bits = list_to_binary(S),
+ Bits = list_to_binary(S), % fails if there are characters > 255
Size = byte_size(Bits),
<<Bits:Size/binary,Rest/binary-unit:1>> = Bin,
{Bs,BBs,Rest};
+match_field_1({bin_element,Line,{string,SLine,S},Size0,Options0},
+ Bin0, Bs0, BBs0, Mfun, Efun) ->
+ {Size1, [Type,{unit,Unit},Sign,Endian]} =
+ make_bit_type(Line, Size0, Options0),
+ Size2 = erl_eval:partial_eval(Size1),
+ match_check_size(Mfun, Size2, BBs0),
+ {value, Size, _BBs} = Efun(Size2, BBs0),
+ F = fun(C, Bin, Bs, BBs) ->
+ match_field(Bin, Type, Size, Unit, Sign, Endian,
+ {integer,SLine,C}, Bs, BBs, Mfun)
+ end,
+ match_field_string(S, Bin0, Bs0, BBs0, F);
match_field_1({bin_element,Line,VE,Size0,Options0},
Bin, Bs0, BBs0, Mfun, Efun) ->
{Size1, [Type,{unit,Unit},Sign,Endian]} =
make_bit_type(Line, Size0, Options0),
V = erl_eval:partial_eval(VE),
+ NewV = coerce_to_float(V, Type),
Size2 = erl_eval:partial_eval(Size1),
match_check_size(Mfun, Size2, BBs0),
{value, Size, _BBs} = Efun(Size2, BBs0),
+ match_field(Bin, Type, Size, Unit, Sign, Endian, NewV, Bs0, BBs0, Mfun).
+
+match_field_string([], Rest, Bs, BBs, _Fun) ->
+ {Bs,BBs,Rest};
+match_field_string([C|Cs], Bin0, Bs0, BBs0, Fun) ->
+ {Bs,BBs,Bin} = Fun(C, Bin0, Bs0, BBs0),
+ match_field_string(Cs, Bin, Bs, BBs, Fun).
+
+match_field(Bin, Type, Size, Unit, Sign, Endian, NewV, Bs0, BBs0, Mfun) ->
{Val,Rest} = get_value(Bin, Type, Size, Unit, Sign, Endian),
- NewV = coerce_to_float(V, Type),
{match,Bs} = Mfun(match, {NewV,Val,Bs0}),
BBs = add_bin_binding(Mfun, NewV, Bs, BBs0),
{Bs,BBs,Rest}.
diff --git a/lib/stdlib/test/erl_eval_SUITE.erl b/lib/stdlib/test/erl_eval_SUITE.erl
index 04d49770cb..d3c91c7326 100644
--- a/lib/stdlib/test/erl_eval_SUITE.erl
+++ b/lib/stdlib/test/erl_eval_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2013. 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
@@ -37,6 +37,7 @@
otp_6977/1,
otp_7550/1,
otp_8133/1,
+ otp_10622/1,
funs/1,
try_catch/1,
eval_expr_5/1,
@@ -79,7 +80,7 @@ all() ->
pattern_expr, match_bin, guard_3, guard_4, lc,
simple_cases, unary_plus, apply_atom, otp_5269,
otp_6539, otp_6543, otp_6787, otp_6977, otp_7550,
- otp_8133, funs, try_catch, eval_expr_5, zero_width].
+ otp_8133, otp_10622, funs, try_catch, eval_expr_5, zero_width].
groups() ->
[].
@@ -960,6 +961,7 @@ otp_8133(Config) when is_list(Config) ->
E = fun(N) ->
if
is_integer(N) -> <<N/integer>>;
+
true -> erlang:error(foo)
end
end,
@@ -980,6 +982,48 @@ otp_8133(Config) when is_list(Config) ->
ok),
ok.
+otp_10622(doc) ->
+ ["OTP-10622. Bugs."];
+otp_10622(suite) ->
+ [];
+otp_10622(Config) when is_list(Config) ->
+ check(fun() -> <<0>> = <<"\x{400}">> end,
+ "<<0>> = <<\"\\x{400}\">>. ",
+ <<0>>),
+ check(fun() -> <<"\x{aa}ff"/utf8>> = <<"\x{aa}ff"/utf8>> end,
+ "<<\"\\x{aa}ff\"/utf8>> = <<\"\\x{aa}ff\"/utf8>>. ",
+ <<"�\xaaff">>),
+ %% The same bug as last example:
+ check(fun() -> case <<"foo"/utf8>> of
+ <<"foo"/utf8>> -> true
+ end
+ end,
+ "case <<\"foo\"/utf8>> of <<\"foo\"/utf8>> -> true end.",
+ true),
+ check(fun() -> <<"\x{400}"/utf8>> = <<"\x{400}"/utf8>> end,
+ "<<\"\\x{400}\"/utf8>> = <<\"\\x{400}\"/utf8>>. ",
+ <<208,128>>),
+ error_check("<<\"\\x{aaa}\">> = <<\"\\x{aaa}\">>.",
+ {badmatch,<<"\xaa">>}),
+
+ check(fun() -> [a || <<"\x{aaa}">> <= <<2703:16>>] end,
+ "[a || <<\"\\x{aaa}\">> <= <<2703:16>>]. ",
+ []),
+ check(fun() -> [a || <<"\x{aa}"/utf8>> <= <<"\x{aa}"/utf8>>] end,
+ "[a || <<\"\\x{aa}\"/utf8>> <= <<\"\\x{aa}\"/utf8>>]. ",
+ [a]),
+ check(fun() -> [a || <<"\x{aa}x"/utf8>> <= <<"\x{aa}y"/utf8>>] end,
+ "[a || <<\"\\x{aa}x\"/utf8>> <= <<\"\\x{aa}y\"/utf8>>]. ",
+ []),
+ check(fun() -> [a || <<"\x{aaa}">> <= <<"\x{aaa}">>] end,
+ "[a || <<\"\\x{aaa}\">> <= <<\"\\x{aaa}\">>]. ",
+ []),
+ check(fun() -> [a || <<"\x{aaa}"/utf8>> <= <<"\x{aaa}"/utf8>>] end,
+ "[a || <<\"\\x{aaa}\"/utf8>> <= <<\"\\x{aaa}\"/utf8>>]. ",
+ [a]),
+
+ ok.
+
funs(doc) ->
["Simple cases, just to cover some code."];
funs(suite) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 10:35:58 +0000