mirror of https://github.com/python/cpython.git
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
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# This script generates a Python interface for an Apple Macintosh Manager.
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# It uses the "bgen" package to generate C code.
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# The function specifications are generated by scanning the mamager's header file,
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# using the "scantools" package (customized for this particular manager).
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import string
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# Declarations that change for each manager
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MACHEADERFILE = 'Controls.h' # The Apple header file
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MODNAME = 'Ctl' # The name of the module
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OBJECTNAME = 'Control' # The basic name of the objects used here
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# The following is *usually* unchanged but may still require tuning
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MODPREFIX = MODNAME # The prefix for module-wide routines
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OBJECTTYPE = OBJECTNAME + 'Handle' # The C type used to represent them
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OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods
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INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
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OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
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from macsupport import *
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# Create the type objects
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ControlHandle = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
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ExistingControlHandle = OpaqueByValueType(OBJECTTYPE, "CtlObj_WhichControl", "BUG")
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RgnHandle = FakeType("theWindow->visRgn") # XXX
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includestuff = includestuff + """
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#include <%s>""" % MACHEADERFILE + """
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#define resNotFound -192 /* Can't include <Errors.h> because of Python's "errors.h" */
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extern PyObject *CtlObj_WhichControl(ControlHandle); /* Forward */
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#ifdef THINK_C
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#define ControlActionUPP ProcPtr
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#endif
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"""
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finalstuff = finalstuff + """
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PyObject *
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CtlObj_WhichControl(ControlHandle c)
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{
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PyObject *it;
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/* XXX What if we find a control belonging to some other package? */
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if (c == NULL)
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it = NULL;
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else
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it = (PyObject *) GetCRefCon(c);
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if (it == NULL || ((ControlObject *)it)->ob_itself != c)
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it = Py_None;
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Py_INCREF(it);
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return it;
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}
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"""
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class MyObjectDefinition(GlobalObjectDefinition):
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def outputCheckNewArg(self):
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Output("if (itself == NULL) return PyMac_Error(resNotFound);")
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def outputInitStructMembers(self):
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GlobalObjectDefinition.outputInitStructMembers(self)
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Output("SetCRefCon(itself, (long)it);")
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# Create the generator groups and link them
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module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
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object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE)
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module.addobject(object)
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# Create the generator classes used to populate the lists
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Function = OSErrFunctionGenerator
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Method = OSErrMethodGenerator
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# Create and populate the lists
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functions = []
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methods = []
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execfile(INPUTFILE)
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# add the populated lists to the generator groups
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for f in functions: module.add(f)
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for f in methods: object.add(f)
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# generate output (open the output file as late as possible)
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SetOutputFileName(OUTPUTFILE)
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module.generate()
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