Author: Armin Rigo <[email protected]>
Branch: generator-in-rpython
Changeset: r50829:9d9bba8e1c24
Date: 2011-12-23 11:34 +0100
http://bitbucket.org/pypy/pypy/changeset/9d9bba8e1c24/
Log: A non-test for a non-feature.
diff --git a/pypy/rpython/test/test_generator.py
b/pypy/rpython/test/test_generator.py
--- a/pypy/rpython/test/test_generator.py
+++ b/pypy/rpython/test/test_generator.py
@@ -17,6 +17,40 @@
res = self.interpret(f, [])
assert res == 358
+ def test_cannot_merge(self):
+ # merging two different generators is not supported
+ # right now, but we can use workarounds like here
+ class MyGen:
+ def next(self):
+ raise NotImplementedError
+ class MyG1(MyGen):
+ def __init__(self, a):
+ self._gen = self.g1(a)
+ def next(self):
+ return self._gen.next()
+ @staticmethod
+ def g1(a):
+ yield a + 1
+ yield a + 2
+ class MyG2(MyGen):
+ def __init__(self):
+ self._gen = self.g2()
+ def next(self):
+ return self._gen.next()
+ @staticmethod
+ def g2():
+ yield 42
+ def f(n):
+ if n > 0:
+ gen = MyG1(n)
+ else:
+ gen = MyG2()
+ return gen.next()
+ res = self.interpret(f, [10])
+ assert res == 11
+ res = self.interpret(f, [0])
+ assert res == 42
+
class TestLLtype(BaseTestGenerator, LLRtypeMixin):
pass
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