mirror of https://github.com/python/cpython
84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
# This script generates a Python interface for an Apple Macintosh Manager.
|
|
# It uses the "bgen" package to generate C code.
|
|
# The function specifications are generated by scanning the mamager's header file,
|
|
# using the "scantools" package (customized for this particular manager).
|
|
|
|
import string
|
|
|
|
# Declarations that change for each manager
|
|
MACHEADERFILE = 'Lists.h' # The Apple header file
|
|
MODNAME = 'List' # The name of the module
|
|
OBJECTNAME = 'List' # The basic name of the objects used here
|
|
KIND = 'Handle' # Usually 'Ptr' or 'Handle'
|
|
|
|
# The following is *usually* unchanged but may still require tuning
|
|
MODPREFIX = MODNAME # The prefix for module-wide routines
|
|
OBJECTTYPE = "ListRef" # The C type used to represent them
|
|
OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
|
|
INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
|
|
OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
|
|
|
|
from macsupport import *
|
|
|
|
# Create the type objects
|
|
ListRef = OpaqueByValueType("ListRef", "ListObj")
|
|
Cell = Point
|
|
VarOutBufferShortsize = VarHeapOutputBufferType('char', 'short', 's') # (buf, &len)
|
|
InBufferShortsize = VarInputBufferType('char', 'short', 's') # (buf, len)
|
|
|
|
RgnHandle = OpaqueByValueType("RgnHandle", "ResObj")
|
|
|
|
|
|
includestuff = includestuff + """
|
|
#include <%s>""" % MACHEADERFILE + """
|
|
"""
|
|
|
|
class ListMethodGenerator(MethodGenerator):
|
|
"""Similar to MethodGenerator, but has self as last argument"""
|
|
|
|
def parseArgumentList(self, args):
|
|
args, a0 = args[:-1], args[-1]
|
|
t0, n0, m0 = a0
|
|
if m0 != InMode:
|
|
raise ValueError, "method's 'self' must be 'InMode'"
|
|
self.itself = Variable(t0, "_self->ob_itself", SelfMode)
|
|
FunctionGenerator.parseArgumentList(self, args)
|
|
self.argumentList.append(self.itself)
|
|
|
|
|
|
|
|
class MyObjectDefinition(GlobalObjectDefinition):
|
|
def outputCheckNewArg(self):
|
|
Output("""if (itself == NULL) {
|
|
PyErr_SetString(List_Error,"Cannot create null List");
|
|
return NULL;
|
|
}""")
|
|
def outputFreeIt(self, itselfname):
|
|
Output("LDispose(%s);", itselfname)
|
|
|
|
# From here on it's basically all boiler plate...
|
|
|
|
# Create the generator groups and link them
|
|
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
|
|
object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
|
|
module.addobject(object)
|
|
|
|
# Create the generator classes used to populate the lists
|
|
Function = FunctionGenerator
|
|
Method = ListMethodGenerator
|
|
|
|
# Create and populate the lists
|
|
functions = []
|
|
methods = []
|
|
execfile(INPUTFILE)
|
|
|
|
# add the populated lists to the generator groups
|
|
# (in a different wordl the scan program would generate this)
|
|
for f in functions: module.add(f)
|
|
for f in methods: object.add(f)
|
|
|
|
# generate output (open the output file as late as possible)
|
|
SetOutputFileName(OUTPUTFILE)
|
|
module.generate()
|
|
|