Refactor Cython code

.travis.yml

@@ -45,7 +45,7 @@ install:
 
 script:
   - python -c 'import sys; print(hex(sys.maxsize))'
-  - python -c 'from msgpack import _msgpack'
+  - python -c 'from msgpack import _cmsgpack'
   - pytest -v test
   - MSGPACK_PUREPYTHON=x pytest -v test
 

Makefile

@@ -4,7 +4,7 @@ all: cython
 
 .PHONY: cython
 cython:
-	cython --cplus msgpack/_msgpack.pyx
+	cython --cplus msgpack/_cmsgpack.pyx
 
 .PHONY: test
 test:

appveyor.yml

@@ -6,8 +6,9 @@ environment:
 
 install:
   # We need wheel installed to build wheels
+  - "%PYTHON%\\python.exe -m pip install -U pip"
   - "%PYTHON%\\python.exe -m pip install -U cython"
-  - "%PYTHON%\\Scripts\\cython --cplus msgpack/_packer.pyx msgpack/_unpacker.pyx"
+  - "%PYTHON%\\Scripts\\cython --cplus msgpack/_cmsgpack.pyx"
 
 build: off
 

docker/runtests.sh

@@ -8,7 +8,7 @@ for V in cp36-cp36m cp35-cp35m cp27-cp27m cp27-cp27mu; do
     $PYBIN/pip install pytest
     pushd test          # prevent importing msgpack package in current directory.
     $PYBIN/python -c 'import sys; print(hex(sys.maxsize))'
-    $PYBIN/python -c 'from msgpack import _msgpack'  # Ensure extension is available
+    $PYBIN/python -c 'from msgpack import _cmsgpack'  # Ensure extension is available
     $PYBIN/pytest -v .
     popd
 done

msgpack/__init__.py

@@ -22,7 +22,7 @@ def __new__(cls, code, data):
     from msgpack.fallback import Packer, unpackb, Unpacker
 else:
     try:
-        from msgpack._msgpack import Packer, unpackb, Unpacker
+        from msgpack._cmsgpack import Packer, unpackb, Unpacker
     except ImportError:
         from msgpack.fallback import Packer, unpackb, Unpacker
 

msgpack/_cmsgpack.pyx

@@ -0,0 +1,4 @@
+# coding: utf-8
+#cython: embedsignature=True, c_string_encoding=ascii, language_level=2
+include "_packer.pyx"
+include "_unpacker.pyx"

msgpack/_packer.pyx

@@ -1,18 +1,14 @@
 # coding: utf-8
-#cython: embedsignature=True, c_string_encoding=ascii
 
 from cpython cimport *
-from cpython.version cimport PY_MAJOR_VERSION
-from cpython.exc cimport PyErr_WarnEx
+from cpython.bytearray cimport PyByteArray_Check, PyByteArray_CheckExact
 
 from msgpack import ExtType
 
 
 cdef extern from "Python.h":
 
     int PyMemoryView_Check(object obj)
-    int PyByteArray_Check(object obj)
-    int PyByteArray_CheckExact(object obj)
     char* PyUnicode_AsUTF8AndSize(object obj, Py_ssize_t *l) except NULL
 
 
@@ -204,7 +200,7 @@ cdef class Packer(object):
             elif PyBytesLike_CheckExact(o) if strict_types else PyBytesLike_Check(o):
                 L = len(o)
                 if L > ITEM_LIMIT:
-                    raise ValueError("%s is too large" % type(o).__name__)
+                    PyErr_Format(ValueError, b"%.200s object is too large", Py_TYPE(o).tp_name)
                 rawval = o
                 ret = msgpack_pack_bin(&self.pk, L)
                 if ret == 0:
@@ -280,7 +276,7 @@ cdef class Packer(object):
                 default_used = 1
                 continue
             else:
-                raise TypeError("can't serialize %r" % (o,))
+                PyErr_Format(TypeError, b"can not serialize '%.200s' object", Py_TYPE(o).tp_name)
             return ret
 
     cpdef pack(self, object obj):

msgpack/_unpacker.pyx

@@ -1,26 +1,6 @@
 # coding: utf-8
-#cython: embedsignature=True, c_string_encoding=ascii
 
-from cpython.version cimport PY_MAJOR_VERSION
-from cpython.bytes cimport (
-    PyBytes_AsString,
-    PyBytes_FromStringAndSize,
-    PyBytes_Size,
-)
-from cpython.buffer cimport (
-    Py_buffer,
-    PyObject_CheckBuffer,
-    PyObject_GetBuffer,
-    PyBuffer_Release,
-    PyBuffer_IsContiguous,
-    PyBUF_READ,
-    PyBUF_SIMPLE,
-    PyBUF_FULL_RO,
-)
-from cpython.mem cimport PyMem_Malloc, PyMem_Free
-from cpython.object cimport PyCallable_Check
-from cpython.ref cimport Py_DECREF
-from cpython.exc cimport PyErr_WarnEx
+from cpython cimport *
 
 cdef extern from "Python.h":
     ctypedef struct PyObject

setup.py

@@ -68,7 +68,7 @@ def build_extension(self, ext):
 if have_cython:
     class Sdist(sdist):
         def __init__(self, *args, **kwargs):
-            cythonize('msgpack/_msgpack.pyx')
+            cythonize('msgpack/_cmsgpack.pyx')
             sdist.__init__(self, *args, **kwargs)
 else:
     Sdist = sdist
@@ -84,8 +84,8 @@ def __init__(self, *args, **kwargs):
 
 ext_modules = []
 if not hasattr(sys, 'pypy_version_info'):
-    ext_modules.append(Extension('msgpack._msgpack',
-                                 sources=['msgpack/_msgpack.cpp'],
+    ext_modules.append(Extension('msgpack._cmsgpack',
+                                 sources=['msgpack/_cmsgpack.cpp'],
                                  libraries=libraries,
                                  include_dirs=['.'],
                                  define_macros=macros,