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| author | Kostis Sagonas <[email protected]> | 2013-10-09 17:09:17 +0200 |
|---|---|---|
| committer | Kostis Sagonas <[email protected]> | 2013-10-09 17:09:17 +0200 |
| commit | e978ff2a2c634ef2a4af7372cf2ecce8d70743b9 (patch) | |
| tree | 0d498ac0a4041d66c6491f00a43a4821353e0c8f /lib/dialyzer | |
| parent | 3a481b4a687803b69ede848a75299b4b277f4296 (diff) | |
| download | otp-e978ff2a2c634ef2a4af7372cf2ecce8d70743b9.tar.gz otp-e978ff2a2c634ef2a4af7372cf2ecce8d70743b9.tar.bz2 otp-e978ff2a2c634ef2a4af7372cf2ecce8d70743b9.zip | |
Fix crash when using remote types in the tail of list types
Hans Bolider reported a dialyzer crash when using a remote type in
the tail position of a maybe_improper_list() declaration. A test
was created (by extending an existing module of the testsuite)
and erl_types was modified to expand the remote type and not pass
it unexpanded to subsequent phases in the processing.
Diffstat (limited to 'lib/dialyzer')
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/maybe_improper.erl | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/maybe_improper.erl b/lib/dialyzer/test/small_SUITE_data/src/maybe_improper.erl index 1743d81493..6d2a35b7c8 100644 --- a/lib/dialyzer/test/small_SUITE_data/src/maybe_improper.erl +++ b/lib/dialyzer/test/small_SUITE_data/src/maybe_improper.erl @@ -1,7 +1,18 @@ +%%%======================================================================== +%%% Tests handling of maybe improper lists +%%%======================================================================== -module(maybe_improper). --export([s/1]). +-export([s/1, t/0]). -spec s(maybe_improper_list(X,Y)) -> {[X], maybe_improper_list(X,Y)}. -s(A) -> - lists:split(2,A). +s(L) -> + lists:split(2, L). + +%% Having a remote type in the 'tail' of the list crashed dialyzer. +%% The problem was fixed for R16B03. +-type t_mil() :: maybe_improper_list(integer(), orddict:orddict()). + +-spec t() -> t_mil(). +t() -> + [42 | []]. |