Author: Carl Friedrich Bolz-Tereick <[email protected]>
Branch: py3.7
Changeset: r98490:1787f589a543
Date: 2020-01-08 13:23 +0100
http://bitbucket.org/pypy/pypy/changeset/1787f589a543/
Log: make cell contents writable
diff --git a/pypy/interpreter/nestedscope.py b/pypy/interpreter/nestedscope.py
--- a/pypy/interpreter/nestedscope.py
+++ b/pypy/interpreter/nestedscope.py
@@ -85,3 +85,6 @@
return self.get()
except ValueError:
raise oefmt(space.w_ValueError, "Cell is empty")
+
+ def descr_set_cell_contents(self, space, w_value):
+ return self.set(w_value)
diff --git a/pypy/interpreter/test/apptest_nestedscope.py
b/pypy/interpreter/test/apptest_nestedscope.py
--- a/pypy/interpreter/test/apptest_nestedscope.py
+++ b/pypy/interpreter/test/apptest_nestedscope.py
@@ -88,6 +88,19 @@
g = f(10)
assert g.__closure__[0].cell_contents == 10
+def test_set_cell_contents():
+ def f(x):
+ def g(y):
+ return x + y
+ return g
+
+ g10 = f(10)
+ assert g10(5) == 15
+ assert g10.__closure__[0].cell_contents == 10
+ g10.__closure__[0].cell_contents = 20
+ assert g10.__closure__[0].cell_contents == 20
+ assert g10(5) == 25
+
def test_empty_cell_contents():
def f():
diff --git a/pypy/interpreter/typedef.py b/pypy/interpreter/typedef.py
--- a/pypy/interpreter/typedef.py
+++ b/pypy/interpreter/typedef.py
@@ -943,7 +943,7 @@
__reduce__ = interp2app(Cell.descr__reduce__),
__repr__ = interp2app(Cell.descr__repr__),
__setstate__ = interp2app(Cell.descr__setstate__),
- cell_contents= GetSetProperty(Cell.descr__cell_contents, cls=Cell),
+ cell_contents= GetSetProperty(Cell.descr__cell_contents,
Cell.descr_set_cell_contents, cls=Cell),
)
assert not Cell.typedef.acceptable_as_base_class # no __new__
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