/Mac/Modules/osa/osasupport.py
http://unladen-swallow.googlecode.com/ · Python · 105 lines · 71 code · 17 blank · 17 comment · 2 complexity · e848852548ef284473dde05f63646540 MD5 · raw file
- # 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 = 'OSA.h' # The Apple header file
- MODNAME = '_OSA' # The name of the module
- # The following is *usually* unchanged but may still require tuning
- MODPREFIX = 'OSA' # The prefix for module-wide routines
- OBJECTPREFIX = 'OSAObj' # 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
- includestuff = includestuff + """
- #if PY_VERSION_HEX < 0x02040000
- PyObject *PyMac_GetOSErrException(void);
- #endif
- #include <Carbon/Carbon.h>
- #ifdef USE_TOOLBOX_OBJECT_GLUE
- extern PyObject *_OSAObj_New(ComponentInstance);
- extern int _OSAObj_Convert(PyObject *, ComponentInstance *);
- #define OSAObj_New _OSAObj_New
- #define OSAObj_Convert _OSAObj_Convert
- #endif
- """
- initstuff = initstuff + """
- /*
- PyMac_INIT_TOOLBOX_OBJECT_NEW(ComponentInstance, OSAObj_New);
- PyMac_INIT_TOOLBOX_OBJECT_CONVERT(ComponentInstance, OSAObj_Convert);
- */
- """
- ComponentInstance = OpaqueByValueType('ComponentInstance', OBJECTPREFIX)
- OSAError = OSErrType("OSAError", "l")
- # OSALocalOrGlobal = Type("OSALocalOrGlobal", "l")
- OSAID = Type("OSAID", "l")
- OSADebugCallFrameRef = Type("OSADebugCallFrameRef", "l")
- OSADebugSessionRef = Type("OSADebugSessionRef", "l")
- OSADebugStepKind = Type("OSADebugStepKind", "l")
- DescType = OSTypeType("DescType")
- AEDesc = OpaqueType('AEDesc')
- AEDesc_ptr = OpaqueType('AEDesc')
- AEAddressDesc = OpaqueType('AEAddressDesc', 'AEDesc')
- AEAddressDesc_ptr = OpaqueType('AEAddressDesc', 'AEDesc')
- AEDescList = OpaqueType('AEDescList', 'AEDesc')
- AEDescList_ptr = OpaqueType('AEDescList', 'AEDesc')
- AERecord = OpaqueType('AERecord', 'AEDesc')
- AERecord_ptr = OpaqueType('AERecord', 'AEDesc')
- AppleEvent = OpaqueType('AppleEvent', 'AEDesc')
- AppleEvent_ptr = OpaqueType('AppleEvent', 'AEDesc')
- # NOTE: at the moment OSA.ComponentInstance is not a subclass
- # of Cm.ComponentInstance. If this is a problem it can be fixed.
- class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
- def outputCheckNewArg(self):
- Output("""if (itself == NULL) {
- PyErr_SetString(OSA_Error,"NULL ComponentInstance");
- return NULL;
- }""")
- def outputCheckConvertArg(self):
- Output("""
- if (CmpInstObj_Convert(v, p_itself))
- return 1;
- PyErr_Clear();
- """)
- # Create the generator groups and link them
- module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
- object = MyObjectDefinition('OSAComponentInstance', OBJECTPREFIX,
- 'ComponentInstance')
- module.addobject(object)
- # Create the generator classes used to populate the lists
- Function = OSErrWeakLinkFunctionGenerator
- Method = OSErrWeakLinkMethodGenerator
- # Test which types we are still missing.
- execfile(string.lower(MODPREFIX) + 'typetest.py')
- # 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()