[pypy-svn] pypy default: (lambacck) Implement PyExceptionInstance_Class,

[amauryfa]

Author: Amaury Forgeot d'Arc <amauryfa at gmail.com>
Branch: 
Changeset: r42950:daf495c3d9a5
Date: 2011-03-26 00:00 +0100
http://bitbucket.org/pypy/pypy/changeset/daf495c3d9a5/

Log:	(lambacck) Implement PyExceptionInstance_Class, simplified because
	2.7 strongly discourages old-style exceptions.

diff --git a/pypy/module/cpyext/pyerrors.py b/pypy/module/cpyext/pyerrors.py
--- a/pypy/module/cpyext/pyerrors.py
+++ b/pypy/module/cpyext/pyerrors.py
@@ -39,6 +39,10 @@
     state = space.fromcache(State)
     state.clear_exception()
 
+ at cpython_api([PyObject], PyObject)
+def PyExceptionInstance_Class(space, w_obj):
+    return space.type(w_obj)
+
 @cpython_api([PyObjectP, PyObjectP, PyObjectP], lltype.Void)
 def PyErr_Fetch(space, ptype, pvalue, ptraceback):
     """Retrieve the error indicator into three variables whose addresses are passed.

diff --git a/pypy/module/cpyext/test/test_pyerrors.py b/pypy/module/cpyext/test/test_pyerrors.py
--- a/pypy/module/cpyext/test/test_pyerrors.py
+++ b/pypy/module/cpyext/test/test_pyerrors.py
@@ -96,6 +96,10 @@
         out, err = capfd.readouterr()
         assert "Exception ValueError: 'message' in 'location' ignored" == err.strip()
 
+    def test_ExceptionInstance_Class(self, space, api):
+        instance = space.call_function(space.w_ValueError)
+        assert api.PyExceptionInstance_Class(instance) is space.w_ValueError
+
 class AppTestFetch(AppTestCpythonExtensionBase):
     def setup_class(cls):
         AppTestCpythonExtensionBase.setup_class.im_func(cls)