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Commit 8f7d842e authored by Piotr Maślanka's avatar Piotr Maślanka
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move constants to separate files

parent 17c29c18
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import logging
import typing as tp
logger = logging.getLogger(__name__)
BOOTSTRAP_PYX_HEADER = """
cdef extern from "Python.h":
ctypedef struct PyModuleDef:
const char* m_name;
void Py_INCREF(object)
object PyModule_FromDefAndSpec(PyModuleDef *definition, object spec)
int PyModule_ExecDef(object module, PyModuleDef* definition)
"""
BOOTSTRAP_PYX_PACKAGE_LOADER = """
import sys
cdef class CythonPackageLoader:
cdef PyModuleDef* definition
cdef object def_o
cdef str name
def __init__(self, name):
self.def_o = get_definition_by_name(name)
self.definition = <PyModuleDef*>self.def_o
self.name = name
Py_INCREF(self.def_o)
def load_module(self, fullname):
raise ImportError
def create_module(self, spec):
if spec.name != self.name:
raise ImportError()
return PyModule_FromDefAndSpec(self.definition, spec)
def exec_module(self, module):
PyModule_ExecDef(module, self.definition)
class CythonPackageMetaPathFinder:
def __init__(self, modules_set):
self.modules_set = modules_set
def find_module(self, fullname, path):
if fullname not in self.modules_set:
return None
return CythonPackageLoader(fullname)
def invalidate_caches(self):
pass
def bootstrap_cython_submodules():
modules_set = %s
sys.meta_path.append(CythonPackageMetaPathFinder(modules_set))
"""
INIT_PY_CONTENTS = """
from %s.__bootstrap__ import bootstrap_cython_submodules
bootstrap_cython_submodules()
"""
BOOTSTRAP_PYX_CDEF = """
cdef extern from "%s"
object PyInit_%s()
'"""
BOOTSTRAP_PYX_GET_DEFINITION_HEADER = """
cdef object get_definition_by_name(str name):
"""
BOOTSTRAP_PYX_GET_DEFINITION_IF = """ if name == %s:
return %s
"""
BOOTSTRAP_PYX_GET_DEFINITION_ELIF = """ elif name == %s:
return %s
"""
\ No newline at end of file
import os
from setuptools import Extension
from .constants import BOOTSTRAP_PYX_HEADER, BOOTSTRAP_PYX_PACKAGE_LOADER, INIT_PY_CONTENTS, \
BOOTSTRAP_PYX_CDEF, BOOTSTRAP_PYX_GET_DEFINITION_HEADER, BOOTSTRAP_PYX_GET_DEFINITION_IF, \
BOOTSTRAP_PYX_GET_DEFINITION_ELIF
class Multibuild:
......@@ -50,16 +53,7 @@ class Multibuild:
f_out.write('\n'+exported_line+'\n')
def generate_bootstrap(self) -> str:
bootstrap_contents = ["""
cdef extern from "Python.h":
ctypedef struct PyModuleDef:
const char* m_name;
void Py_INCREF(object)
object PyModule_FromDefAndSpec(PyModuleDef *definition, object spec)
int PyModule_ExecDef(object module, PyModuleDef* definition)
"""]
bootstrap_contents = [BOOTSTRAP_PYX_HEADER]
for filename in self.sane_files:
path, name = os.path.split(filename)
if path.startswith(self.bootstrap_directory):
......@@ -70,8 +64,7 @@ cdef extern from "Python.h":
replace('\\', '\\\\')
else:
h_path_name = name.replace('.pyx', '.h')
bootstrap_contents.append('cdef extern from "%s":\n' % (h_path_name, ))
bootstrap_contents.append(' object PyInit_%s()\n\n' % (module_name, ))
bootstrap_contents.append(BOOTSTRAP_PYX_CDEF % (h_path_name, module_name))
if path:
complete_module_name = self.extension_name+'.'+'.'.join(path[1:].split(
......@@ -81,61 +74,17 @@ cdef extern from "Python.h":
self.modules.add((complete_module_name, 'PyInit_%s()' % (module_name, )))
bootstrap_contents.append('''cdef object get_definition_by_name(str name):\n''')
bootstrap_contents.append(BOOTSTRAP_PYX_GET_DEFINITION_HEADER)
modules = iter(self.modules)
mod_name, init_fun_name = next(modules)
bootstrap_contents.append(''' if name == %s:
return %s
''' % (repr(mod_name), init_fun_name))
bootstrap_contents.append(BOOTSTRAP_PYX_GET_DEFINITION_IF % (repr(mod_name), init_fun_name))
for mod_name, init_fun_name in modules:
bootstrap_contents.append(''' elif name == %s:
return %s
''' % (repr(mod_name), init_fun_name))
bootstrap_contents.append(BOOTSTRAP_PYX_GET_DEFINITION_ELIF % (
repr(mod_name), init_fun_name))
bootstrap_contents.append('\n')
bootstrap_contents.append("""
import sys
cdef class CythonPackageLoader:
cdef PyModuleDef* definition
cdef object def_o
cdef str name
def __init__(self, name):
self.def_o = get_definition_by_name(name)
self.definition = <PyModuleDef*>self.def_o
self.name = name
Py_INCREF(self.def_o)
def load_module(self, fullname):
raise ImportError
def create_module(self, spec):
if spec.name != self.name:
raise ImportError()
return PyModule_FromDefAndSpec(self.definition, spec)
def exec_module(self, module):
PyModule_ExecDef(module, self.definition)
class CythonPackageMetaPathFinder:
def __init__(self, modules_set):
self.modules_set = modules_set
def find_module(self, fullname, path):
if fullname not in self.modules_set:
return None
return CythonPackageLoader(fullname)
def invalidate_caches(self):
pass
def bootstrap_cython_submodules():
modules_set = %s
sys.meta_path.append(CythonPackageMetaPathFinder(modules_set))
""" % (repr(set(x[0] for x in self.modules)), ))
bootstrap_contents.append(BOOTSTRAP_PYX_PACKAGE_LOADER % (
repr(set(x[0] for x in self.modules)), ))
return ''.join(bootstrap_contents)
......@@ -151,10 +100,7 @@ def bootstrap_cython_submodules():
data = ''
if 'bootstrap_cython_submodules' not in data:
data = ("""
from %s.__bootstrap__ import bootstrap_cython_submodules
bootstrap_cython_submodules()
""" % (self.extension_name, )) + data
data = (INIT_PY_CONTENTS % (self.extension_name, )) + data
with open(os.path.join(self.bootstrap_directory, '__init__.py'), 'w') as f_out:
f_out.write(data)
......
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