diff options
| author | Hans Bolinder <[email protected]> | 2019-02-18 15:34:22 +0100 |
|---|---|---|
| committer | Hans Bolinder <[email protected]> | 2019-02-18 15:34:22 +0100 |
| commit | 9502b4256d5c310fcac7355c71c3024851ad6751 (patch) | |
| tree | 783b4a3a4754a6cda81a20e1c81ce53ab64f7cc1 | |
| parent | 7a8ee449b79da291ea702c69a7ed4ed6cdae286c (diff) | |
| download | otp-9502b4256d5c310fcac7355c71c3024851ad6751.tar.gz otp-9502b4256d5c310fcac7355c71c3024851ad6751.tar.bz2 otp-9502b4256d5c310fcac7355c71c3024851ad6751.zip | |
stdlib: Fix a bug in the Erlang Pretty Printer
Long atom names in combination with <c><<>></c> could cause a crash.
| -rw-r--r-- | lib/stdlib/src/erl_pp.erl | 4 | ||||
| -rw-r--r-- | lib/stdlib/test/erl_pp_SUITE.erl | 11 |
2 files changed, 11 insertions, 4 deletions
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl index dd302a2880..ada3ff5de3 100644 --- a/lib/stdlib/src/erl_pp.erl +++ b/lib/stdlib/src/erl_pp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2018. All Rights Reserved. +%% Copyright Ericsson AB 1996-2019. 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. @@ -697,6 +697,8 @@ fun_info(Extra) -> %% BITS: +bit_grp([], _Opts) -> + leaf("<<>>"); bit_grp(Fs, Opts) -> append([['<<'], [bit_elems(Fs, Opts)], ['>>']]). diff --git a/lib/stdlib/test/erl_pp_SUITE.erl b/lib/stdlib/test/erl_pp_SUITE.erl index dda8d0a12e..f5d80e7e68 100644 --- a/lib/stdlib/test/erl_pp_SUITE.erl +++ b/lib/stdlib/test/erl_pp_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2006-2018. All Rights Reserved. +%% Copyright Ericsson AB 2006-2019. 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. @@ -51,7 +51,7 @@ otp_6321/1, otp_6911/1, otp_6914/1, otp_8150/1, otp_8238/1, otp_8473/1, otp_8522/1, otp_8567/1, otp_8664/1, otp_9147/1, otp_10302/1, otp_10820/1, otp_11100/1, otp_11861/1, pr_1014/1, - otp_13662/1, otp_14285/1]). + otp_13662/1, otp_14285/1, otp_15592/1]). %% Internal export. -export([ehook/6]). @@ -81,7 +81,7 @@ groups() -> [otp_6321, otp_6911, otp_6914, otp_8150, otp_8238, otp_8473, otp_8522, otp_8567, otp_8664, otp_9147, otp_10302, otp_10820, otp_11100, otp_11861, pr_1014, otp_13662, - otp_14285]}]. + otp_14285, otp_15592]}]. init_per_suite(Config) -> Config. @@ -1167,6 +1167,11 @@ otp_14285(_Config) -> [{encoding,latin1}])), ok. +otp_15592(_Config) -> + ok = pp_expr(<<"long12345678901234567890123456789012345678901234" + "56789012345678901234:f(<<>>)">>), + ok. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% compile(Config, Tests) -> |