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			130 lines
		
	
	
	
		
			4.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			130 lines
		
	
	
	
		
			4.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| # 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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| 
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| import string
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| 
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| # Declarations that change for each manager
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| MACHEADERFILE = 'Components.h'		# The Apple header file
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| MODNAME = '_Cm'				# The name of the module
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| 
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| # The following is *usually* unchanged but may still require tuning
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| MODPREFIX = 'Cm'			# The prefix for module-wide routines
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| C_OBJECTPREFIX = 'CmpObj'	# The prefix for object methods
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| CI_OBJECTPREFIX = 'CmpInstObj'
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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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| 
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| from macsupport import *
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| 
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| # Create the type objects
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| 
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| includestuff = includestuff + """
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| #ifdef WITHOUT_FRAMEWORKS
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| #include <Components.h>
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| #else
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| #include <Carbon/Carbon.h>
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| #endif
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| 
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| #ifdef USE_TOOLBOX_OBJECT_GLUE
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| extern PyObject *_CmpObj_New(Component);
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| extern int _CmpObj_Convert(PyObject *, Component *);
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| extern PyObject *_CmpInstObj_New(ComponentInstance);
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| extern int _CmpInstObj_Convert(PyObject *, ComponentInstance *);
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| 
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| #define CmpObj_New _CmpObj_New
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| #define CmpObj_Convert _CmpObj_Convert
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| #define CmpInstObj_New _CmpInstObj_New
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| #define CmpInstObj_Convert _CmpInstObj_Convert
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| #endif
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| 
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| /*
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| ** Parse/generate ComponentDescriptor records
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| */
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| static PyObject *
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| CmpDesc_New(ComponentDescription *itself)
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| {
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| 
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| 	return Py_BuildValue("O&O&O&ll", 
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| 		PyMac_BuildOSType, itself->componentType,
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| 		PyMac_BuildOSType, itself->componentSubType,
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| 		PyMac_BuildOSType, itself->componentManufacturer,
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| 		itself->componentFlags, itself->componentFlagsMask);
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| }
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| 
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| static int
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| CmpDesc_Convert(PyObject *v, ComponentDescription *p_itself)
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| {
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| 	return PyArg_ParseTuple(v, "O&O&O&ll",
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| 		PyMac_GetOSType, &p_itself->componentType,
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| 		PyMac_GetOSType, &p_itself->componentSubType,
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| 		PyMac_GetOSType, &p_itself->componentManufacturer,
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| 		&p_itself->componentFlags, &p_itself->componentFlagsMask);
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| }
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| 
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| """
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| 
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| initstuff = initstuff + """
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| 	PyMac_INIT_TOOLBOX_OBJECT_NEW(Component, CmpObj_New);
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| 	PyMac_INIT_TOOLBOX_OBJECT_CONVERT(Component, CmpObj_Convert);
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| 	PyMac_INIT_TOOLBOX_OBJECT_NEW(ComponentInstance, CmpInstObj_New);
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| 	PyMac_INIT_TOOLBOX_OBJECT_CONVERT(ComponentInstance, CmpInstObj_Convert);
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| """
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| 
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| ComponentDescription = OpaqueType('ComponentDescription', 'CmpDesc')
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| Component = OpaqueByValueType('Component', C_OBJECTPREFIX)
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| ComponentInstance = OpaqueByValueType('ComponentInstance', CI_OBJECTPREFIX)
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| ComponentResult = Type("ComponentResult", "l")
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| 
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| ComponentResourceHandle = OpaqueByValueType("ComponentResourceHandle", "ResObj")
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| 
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| class MyCIObjectDefinition(GlobalObjectDefinition):
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| 	def outputCheckNewArg(self):
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| 		Output("""if (itself == NULL) {
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| 					PyErr_SetString(Cm_Error,"NULL ComponentInstance");
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| 					return NULL;
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| 				}""")
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| 
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| class MyCObjectDefinition(GlobalObjectDefinition):
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| 	def outputCheckNewArg(self):
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| 		Output("""if (itself == NULL) {
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| 					/* XXXX Or should we return None? */
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| 					PyErr_SetString(Cm_Error,"No such component");
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| 					return NULL;
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| 				}""")
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| 				
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| 	def outputCheckConvertArg(self):
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| 		Output("""if ( v == Py_None ) {
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| 					*p_itself = 0;
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| 					return 1;
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| 		}""")
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| 
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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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| ci_object = MyCIObjectDefinition('ComponentInstance', CI_OBJECTPREFIX,
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| 		'ComponentInstance')
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| c_object = MyCObjectDefinition('Component', C_OBJECTPREFIX, 'Component')
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| module.addobject(ci_object)
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| module.addobject(c_object)
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| 
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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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| 
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| # Create and populate the lists
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| functions = []
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| c_methods = []
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| ci_methods = []
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| execfile(INPUTFILE)
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| 
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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 c_methods: c_object.add(f)
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| for f in ci_methods: ci_object.add(f)
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| 
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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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| 
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