Author: Ronan Lamy <ronan.l...@gmail.com>
Branch:
Changeset: r81397:9859abb0ca1a
Date: 2015-12-19 14:37 +0100
http://bitbucket.org/pypy/pypy/changeset/9859abb0ca1a/
Log: Merge branch 'fix-2211'
diff --git a/pypy/doc/whatsnew-head.rst b/pypy/doc/whatsnew-head.rst
--- a/pypy/doc/whatsnew-head.rst
+++ b/pypy/doc/whatsnew-head.rst
@@ -85,3 +85,7 @@
.. branch: test-AF_NETLINK
.. branch: small-cleanups-misc
.. branch: cpyext-slotdefs
+
+.. branch: fix-2211
+
+Fix the cryptic exception message when attempting to use extended slicing in
rpython
diff --git a/rpython/annotator/test/test_annrpython.py
b/rpython/annotator/test/test_annrpython.py
--- a/rpython/annotator/test/test_annrpython.py
+++ b/rpython/annotator/test/test_annrpython.py
@@ -3516,6 +3516,32 @@
s = a.build_types(f, [unicode])
assert isinstance(s, annmodel.SomeUnicodeString)
+ def test_extended_slice(self):
+ a = self.RPythonAnnotator()
+ def f(start, end, step):
+ return [1, 2, 3][start:end:step]
+ with py.test.raises(AnnotatorError):
+ a.build_types(f, [int, int, int])
+ a = self.RPythonAnnotator()
+ with py.test.raises(AnnotatorError):
+ a.build_types(f, [annmodel.SomeInteger(nonneg=True),
+ annmodel.SomeInteger(nonneg=True),
+ annmodel.SomeInteger(nonneg=True)])
+ def f(x):
+ return x[::-1]
+ a = self.RPythonAnnotator()
+ with py.test.raises(AnnotatorError):
+ a.build_types(f, [str])
+ def f(x):
+ return x[::2]
+ a = self.RPythonAnnotator()
+ with py.test.raises(AnnotatorError):
+ a.build_types(f, [str])
+ def f(x):
+ return x[1:2:1]
+ a = self.RPythonAnnotator()
+ with py.test.raises(AnnotatorError):
+ a.build_types(f, [str])
def test_negative_slice(self):
def f(s, e):
diff --git a/rpython/flowspace/operation.py b/rpython/flowspace/operation.py
--- a/rpython/flowspace/operation.py
+++ b/rpython/flowspace/operation.py
@@ -508,6 +508,13 @@
*[annotator.annotation(arg) for arg in self.args])
+class NewSlice(HLOperation):
+ opname = 'newslice'
+
+ def consider(self, annotator):
+ raise AnnotatorError("Cannot use extended slicing in rpython")
+
+
class Pow(PureOperation):
opname = 'pow'
arity = 3
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