mirror of https://github.com/python/cpython
75 lines
2.5 KiB
Python
75 lines
2.5 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 = 'Events.h' # The Apple header file
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MODNAME = 'Evt' # The name of the module
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OBJECTNAME = 'Event' # The basic name of the objects used here
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KIND = 'Record' # Usually 'Ptr' or 'Handle'
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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 + KIND # 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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WindowPtr = OpaqueByValueType(OBJECTTYPE, OBJECTPREFIX)
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WindowPeek = OpaqueByValueType("WindowPeek", OBJECTPREFIX)
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RgnHandle = FakeType("(RgnHandle)0") # XXX
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KeyMap = ArrayOutputBufferType("KeyMap")
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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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"""
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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 outputCheckConvertArg(self):
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OutLbrace("if (DlgObj_Check(v))")
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Output("*p_itself = ((WindowObject *)v)->ob_itself;")
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Output("return 1;")
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OutRbrace()
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Out("""
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if (v == Py_None) { *p_itself = NULL; return 1; }
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if (PyInt_Check(v)) { *p_itself = (WindowPtr)PyInt_AsLong(v); return 1; }
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""")
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# From here on it's basically all boiler plate...
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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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# (in a different wordl the scan program would generate this)
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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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