File 0548-dialyzer-Fix-a-bug-affecting-keyfind-keyse... of Package erlang

Overview Repositories Revisions Requests Users Attributes Meta

File 0548-dialyzer-Fix-a-bug-affecting-keyfind-keysearch-keyme.patch of Package erlang (Revision cfea4cb463bae0c770730e27e14c06dd)

Currently displaying revision cfea4cb463bae0c770730e27e14c06dd , Show latest

From b3c8e94dd0eae8a01fd4513eff3c2f3741dad193 Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Fri, 8 Feb 2019 14:15:11 +0100
Subject: [PATCH] dialyzer: Fix a bug affecting keyfind/keysearch/keymember

---
 .../test/small_SUITE_data/src/lists_key_bug.erl       | 19 +++++++++++++++++++
 lib/hipe/cerl/erl_bif_types.erl                       |  6 +-----
 2 files changed, 20 insertions(+), 5 deletions(-)
 create mode 100644 lib/dialyzer/test/small_SUITE_data/src/lists_key_bug.erl

diff --git a/lib/dialyzer/test/small_SUITE_data/src/lists_key_bug.erl b/lib/dialyzer/test/small_SUITE_data/src/lists_key_bug.erl
new file mode 100644
index 0000000000..d7cbc27a4d
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/lists_key_bug.erl
@@ -0,0 +1,19 @@
+-module(lists_key_bug).
+
+%% OTP-15570
+
+-export([t/1]).
+
+t(V) ->
+    K = key(V),
+    case lists:keyfind(K, 1, [{<<"foo">>, bar}]) of
+        false ->
+            a;
+        {_, _} ->
+            b
+    end.
+
+key(1) ->
+    3;
+key(2) ->
+    <<"foo">>.
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl
index 48ce641ab9..799957dfdc 100644
--- a/lib/hipe/cerl/erl_bif_types.erl
+++ b/lib/hipe/cerl/erl_bif_types.erl
@@ -2224,11 +2224,7 @@ type_order() ->
   [t_number(), t_atom(), t_reference(), t_fun(), t_port(), t_pid(), t_tuple(),
    t_map(), t_list(), t_bitstr()].
 
-key_comparisons_fail(X0, KeyPos, TupleList, Opaques) ->
-  X = case t_is_number(t_inf(X0, t_number(), Opaques), Opaques) of
-	false -> X0;
-	true -> t_number()
-      end,
+key_comparisons_fail(X, KeyPos, TupleList, Opaques) ->
   lists:all(fun(Tuple) ->
 		Key = type(erlang, element, 2, [KeyPos, Tuple]),
 		t_is_none(t_inf(Key, X, Opaques))
-- 
2.16.4

Places

File 0548-dialyzer-Fix-a-bug-affecting-keyfind-keysearch-keyme.patch of Package erlang (Revision cfea4cb463bae0c770730e27e14c06dd)

Places