diff options
| author | Péter Gömöri <[email protected]> | 2015-05-29 19:00:33 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-06-10 11:44:33 +0200 |
| commit | b1012c31f38810c6754dcd4cf03f8d2bfb010506 (patch) | |
| tree | 69c72ec0d08163565471a7cb86f567fa3c2259f7 /lib/tools/src/cover.erl | |
| parent | 23501295ea5289897a75cb52a23685f8e6fcf18c (diff) | |
| download | otp-b1012c31f38810c6754dcd4cf03f8d2bfb010506.tar.gz otp-b1012c31f38810c6754dcd4cf03f8d2bfb010506.tar.bz2 otp-b1012c31f38810c6754dcd4cf03f8d2bfb010506.zip | |
cover: handle undefined module when analysing to file
It is possible that not just the source but even the beam of a module
is not available when calling analyse_to_file.
For example when coverdata is imported from an old file and since then
a module was removed.
Before this fix cover:analyse_to_file/3 could possibly never return
because of a helper process crashed with error:undef and never reply
to the caller.
At the same time link the helper process to cover_server so any
further error won't let the caller waiting indefinitely.
Diffstat (limited to 'lib/tools/src/cover.erl')
| -rw-r--r-- | lib/tools/src/cover.erl | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/tools/src/cover.erl b/lib/tools/src/cover.erl index 71e17e0ba1..24881a0ab0 100644 --- a/lib/tools/src/cover.erl +++ b/lib/tools/src/cover.erl @@ -782,7 +782,7 @@ main_process_loop(State) -> {From, {{analyse_to_file, Opts},Module}} -> S = try Loaded = is_loaded(Module, State), - spawn(fun() -> + spawn_link(fun() -> ?SPAWN_DBG(analyse_to_file,{Module,Opts}), do_parallel_analysis_to_file( Module, Opts, Loaded, From, State) @@ -2143,7 +2143,13 @@ find_source(Module, File0) -> throw_file(filename:join([BeamDir, "..", "src", Base])), %% Not in ../src: look for source path in compile info, but %% first look relative the beam directory. - Info = lists:keyfind(source, 1, Module:module_info(compile)), + Info = + try lists:keyfind(source, 1, Module:module_info(compile)) + catch error:undef -> + %% The module might have been imported + %% and the beam not available + throw({beam, File0}) + end, false == Info andalso throw({beam, File0}), %% stripped {source, SrcFile} = Info, throw_file(splice(BeamDir, SrcFile)), %% below ../src |