merge revision(s) 46465,46469,46484: [Backport #9961]

	* vm.c (rb_vm_rewind_cfp): add new function to rewind specified cfp
	  with invoking RUBY_EVENT_C_RETURN.
	  [Bug #9961]

	* vm_core.h: ditto.

	* eval.c (rb_protect): use it.

	* eval.c (rb_rescue2): ditto.

	* vm_eval.c (rb_iterate): ditto.

	* test/ruby/test_settracefunc.rb: add a test.

	* vm_core.h (rb_name_err_mesg_new): 

	* vm_eval.c (rb_catch_protect): fix same problem of [Bug #9961].

	* vm_eval.c (rb_iterate): ditto.

	* vm_core.h (rb_vm_rewind_cfp): add the prototype declaration.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@47342 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 51 insertions, 0 deletions

diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index 831923c358..5e9cafcfba 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -1184,6 +1184,57 @@ class TestSetTraceFunc < Test::Unit::TestCase
     assert_equal call_events, return_events.reverse, message
   end
 
+  def test_rb_rescue
+    events = []
+    curr_thread = Thread.current
+    TracePoint.new(:b_call, :b_return, :c_call, :c_return){|tp|
+      next if curr_thread != Thread.current
+      events << [tp.event, tp.method_id]
+    }.enable do
+      begin
+        -Numeric.new
+      rescue => e
+        # ignore
+      end
+    end
+
+    assert_equal [
+    [:b_call, :test_rb_rescue],
+      [:c_call, :new],
+        [:c_call, :initialize],
+        [:c_return, :initialize],
+      [:c_return, :new],
+      [:c_call, :-@],
+        [:c_call, :coerce],
+          [:c_call, :to_s],
+          [:c_return, :to_s],
+          [:c_call, :new],
+            [:c_call, :initialize],
+            [:c_return, :initialize],
+          [:c_return, :new],
+          [:c_call, :exception],
+          [:c_return, :exception],
+          [:c_call, :backtrace],
+          [:c_return, :backtrace],
+        [:c_return, :coerce],            # don't miss it!
+        [:c_call, :to_s],
+        [:c_return, :to_s],
+        [:c_call, :to_s],
+        [:c_return, :to_s],
+        [:c_call, :new],
+          [:c_call, :initialize],
+          [:c_return, :initialize],
+        [:c_return, :new],
+        [:c_call, :exception],
+        [:c_return, :exception],
+        [:c_call, :backtrace],
+        [:c_return, :backtrace],
+      [:c_return, :-@],
+      [:c_call, :===],
+      [:c_return, :===],
+    [:b_return, :test_rb_rescue]], events
+  end
+
   def test_b_call_with_redo
     assert_consistent_call_return do
       i = 0