Fix a reference leak found by Georg, when compiling a class nested in another class.
Test is run with "regrtest.py -R:: test_compile"
Backport of r62015
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index 1a98d2f..0aba1c2 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -398,6 +398,10 @@
del d[..., ...]
self.assertEqual((Ellipsis, Ellipsis) in d, False)
+ def test_nested_classes(self):
+ # Verify that it does not leak
+ compile("class A:\n class B: pass", 'tmp', 'exec')
+
def test_main():
test_support.run_unittest(TestSpecifics)
diff --git a/Misc/NEWS b/Misc/NEWS
index 695e71b..c914050 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
Core and builtins
-----------------
+- The compilation of a class nested in another class used to leak one
+ reference on the outer class name.
+
- Issue #1477: With narrow Unicode builds, the unicode escape sequence
\Uxxxxxxxx did not accept values outside the Basic Multilingual Plane. This
affected raw unicode literals and the 'raw-unicode-escape' codec. Now
diff --git a/Python/compile.c b/Python/compile.c
index f40c325..d40357c 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -2061,6 +2061,7 @@
if (!compiler_enter_scope(c, s->v.ClassDef.name, (void *)s,
s->lineno))
return 0;
+ Py_XDECREF(c->u->u_private);
c->u->u_private = s->v.ClassDef.name;
Py_INCREF(c->u->u_private);
str = PyString_InternFromString("__name__");