cpython/Tools/bgen/bgen/bgenModule.py

86 lines
2.1 KiB
Python

from bgenOutput import *
from bgenGeneratorGroup import GeneratorGroup
class Module(GeneratorGroup):
def __init__(self, name, prefix = None,
includestuff = None,
finalstuff = None,
initstuff = None,
variablestuff = None):
GeneratorGroup.__init__(self, prefix or name)
self.name = name
self.includestuff = includestuff
self.initstuff = initstuff
self.finalstuff = finalstuff
self.variablestuff = variablestuff
def addobject(self, od):
self.generators.append(od)
def generate(self):
OutHeader1("Module " + self.name)
Output("#include \"Python.h\"")
Output()
if self.includestuff:
Output()
Output("%s", self.includestuff)
self.declareModuleVariables()
GeneratorGroup.generate(self)
if self.finalstuff:
Output()
Output("%s", self.finalstuff)
Output()
Output("void init%s()", self.name)
OutLbrace()
Output("PyObject *m;")
Output("PyObject *d;")
Output()
if self.initstuff:
Output("%s", self.initstuff)
Output()
Output("m = Py_InitModule(\"%s\", %s_methods);",
self.name, self.prefix)
Output("d = PyModule_GetDict(m);")
self.createModuleVariables()
OutRbrace()
OutHeader1("End module " + self.name)
def declareModuleVariables(self):
self.errorname = self.prefix + "_Error"
Output("static PyObject *%s;", self.errorname)
def createModuleVariables(self):
Output("""%s = %s;""", self.errorname, self.exceptionInitializer())
Output("""if (%s == NULL ||""", self.errorname)
Output(""" PyDict_SetItemString(d, "Error", %s) != 0)""",
self.errorname)
IndentLevel()
Output("""Py_FatalError("can't initialize %s.Error");""",
self.name)
DedentLevel()
if self.variablestuff:
Output("%s", self.variablestuff)
Output()
def exceptionInitializer(self):
return """PyString_FromString("%s.Error")""" % self.name
def _test():
from bgenGenerator import Generator
m = Module("spam", "", "#include <stdio.h>")
g = Generator(None, "bacon")
m.add(g)
m.generate()
if __name__ == "__main__":
_test()