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# mode: run
# tag: cpp, werror
PYTHON setup.py build_ext --inplace
PYTHON -c "import a; a.test_convert()"
######## setup.py ########
from Cython.Build.Dependencies import cythonize
from Cython.Compiler import PyrexTypes
PyrexTypes.cpp_string_conversions += ("MyString", "MyString2")
from distutils.core import setup
setup(
ext_modules = cythonize("*.pyx"),
)
######## my_string.cpp ########
#include <string>
class MyString {
public:
MyString() { }
MyString(const char* data, size_t size) : value_(data, size) { }
const char* data() const { return value_.data(); }
const size_t size() const { return value_.size(); }
private:
std::string value_;
};
class MyString2 : public MyString {
public:
MyString2() : MyString() { }
MyString2(const char* data, size_t size) : MyString(data, size) { }
};
typedef MyString MyTypedefString;
######## a.pyx ########
# distutils: language = c++
cdef extern from "my_string.cpp":
cdef cppclass MyString:
pass
cdef cppclass MyString2:
pass
ctypedef MyString2 MyTypedefString # really a MyString
def do_convert(MyString value):
return value
def do_convert2(MyString2 value):
return value
def do_convert_typedef(MyTypedefString value):
return value
def test_convert():
assert do_convert(b"abc") == b"abc"
assert do_convert(b"ab\0c") == b"ab\0c"
assert do_convert2(b"abc") == b"abc"
assert do_convert2(b"ab\0c") == b"ab\0c"
assert do_convert_typedef(b"abc") == b"abc"
assert do_convert_typedef(b"ab\0c") == b"ab\0c"
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