2012/5/9 Vitja Makarov <vitja.maka...@gmail.com>: > 2012/5/9 Vitja Makarov <vitja.maka...@gmail.com>: >> 2012/5/9 mark florisson <markflorisso...@gmail.com>: >>> On 9 May 2012 13:39, Vitja Makarov <vitja.maka...@gmail.com> wrote: >>>> 2012/5/9 Vitja Makarov <vitja.maka...@gmail.com>: >>>>> 2012/5/9 Stefan Behnel <stefan...@behnel.de>: >>>>>> Stefan Behnel, 08.05.2012 14:24: >>>>>>> Vitja has rebased the type inference on the control flow >>>>>> >>>>>> On a related note, is this fixable now? >>>>>> >>>>>> def test(): >>>>>> x = 1 # inferred as int >>>>>> del x # error: Deletion of non-Python, non-C++ object >>>>>> >>>>>> http://trac.cython.org/cython_trac/ticket/768 >>>>>> >>>>>> It might be enough to infer "object" for names that are being del-ed for >>>>>> now, and to fix "del" The Right Way when we split entries. >>>>>> >>>>> >>>>> Do you mean that `x` should be inferred as "python object" in your >>>>> example? >>>>> >>>>> Yes, we may add workaround for del <unspecified_type> case. >>>>> Del is represented now by NameDeletion with the same rhs and lhs. >>>>> >>>>> We can add method infer_type() to NameAssignment and use it instead of >>>>> Node.infer_type() >>>>> >>>>> >>>> >>>> Here I've tried to fix it, now deletion always infers as python_object >>>> >>>> https://github.com/vitek/cython/commit/225c9c60bed6406db46e87da31596e053056f8b7 >>>> >>>> >>>> That may break C++ object deletion >>>> >>> >>> Memoryviews can be deleted as well. >> >> >> That code is run for entries with unspecified_type only >> >> > > Yeah, this code doesn't work now: > > cdef extern from "foo.h": > cdef cppclass Foo: > Foo() > > def foo(): > foo = new Foo() > print typeof(foo) > del foo > > And I'm not sure how to fix it.
I've fixed cppclasses: https://github.com/vitek/cython/commit/f5acf44be0f647bdcbb5a23c8bfbceff48f4414e About memoryviews: from cython cimport typeof def foo(float[::1] a): b = a #del b print typeof(b) print typeof(a) In this example `b` is inferred as 'Python object' and not `float[::1]`, is that correct? -- vitja. _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
