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-rw-r--r--ChangeLog5
-rw-r--r--lib/e2mmap.rb1
2 files changed, 6 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 239d380afe..7821c559b9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Nov 6 11:45:11 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * lib/e2mmap.rb (E2MM.def_exception): remove old definition if
+ exists so that works multiple times.
+
Sun Nov 6 10:03:00 2016 Shugo Maeda <shugo@ruby-lang.org>
* test/ruby/test_optimization.rb (test_tailcall_interrupted_by_sigint):
diff --git a/lib/e2mmap.rb b/lib/e2mmap.rb
index e9cbd6a63d..ba1e87dd85 100644
--- a/lib/e2mmap.rb
+++ b/lib/e2mmap.rb
@@ -134,6 +134,7 @@ module Exception2MessageMapper
def E2MM.def_exception(k, n, m, s = StandardError)
e = Class.new(s)
E2MM.instance_eval{@MessageMap[[k, e]] = m}
+ k.module_eval {remove_const(n)} if k.const_defined?(n, false)
k.const_set(n, e)
end