# 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). #error missing SetActionFilter import string # Declarations that change for each manager MODNAME = '_CF' # The name of the module # The following is *usually* unchanged but may still require tuning MODPREFIX = 'CF' # The prefix for module-wide routines 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 * # Special case generator for the functions that have an AllocatorRef first argument, # which we skip anyway, and the object as the second arg. class MethodSkipArg1(MethodGenerator): """Similar to MethodGenerator, but has self as last argument""" def parseArgumentList(self, args): if len(args) < 2: raise ValueError, "MethodSkipArg1 expects at least 2 args" a0, a1, args = args[0], args[1], args[2:] t0, n0, m0 = a0 if t0 != "CFAllocatorRef" and m0 != InMode: raise ValueError, "MethodSkipArg1 should have dummy AllocatorRef first arg" t1, n1, m1 = a1 if m1 != InMode: raise ValueError, "method's 'self' must be 'InMode'" dummy = Variable(t0, n0, m0) self.argumentList.append(dummy) self.itself = Variable(t1, "_self->ob_itself", SelfMode) self.argumentList.append(self.itself) FunctionGenerator.parseArgumentList(self, args) # Create the type objects includestuff = includestuff + """ #ifdef WITHOUT_FRAMEWORKS #include #include #include #include #include #include #else #include #endif #include "pycfbridge.h" #ifdef USE_TOOLBOX_OBJECT_GLUE extern PyObject *_CFTypeRefObj_New(CFTypeRef); extern int _CFTypeRefObj_Convert(PyObject *, CFTypeRef *); #define CFTypeRefObj_New _CFTypeRefObj_New #define CFTypeRefObj_Convert _CFTypeRefObj_Convert extern PyObject *_CFStringRefObj_New(CFStringRef); extern int _CFStringRefObj_Convert(PyObject *, CFStringRef *); #define CFStringRefObj_New _CFStringRefObj_New #define CFStringRefObj_Convert _CFStringRefObj_Convert extern PyObject *_CFMutableStringRefObj_New(CFMutableStringRef); extern int _CFMutableStringRefObj_Convert(PyObject *, CFMutableStringRef *); #define CFMutableStringRefObj_New _CFMutableStringRefObj_New #define CFMutableStringRefObj_Convert _CFMutableStringRefObj_Convert extern PyObject *_CFArrayRefObj_New(CFArrayRef); extern int _CFArrayRefObj_Convert(PyObject *, CFArrayRef *); #define CFArrayRefObj_New _CFArrayRefObj_New #define CFArrayRefObj_Convert _CFArrayRefObj_Convert extern PyObject *_CFMutableArrayRefObj_New(CFMutableArrayRef); extern int _CFMutableArrayRefObj_Convert(PyObject *, CFMutableArrayRef *); #define CFMutableArrayRefObj_New _CFMutableArrayRefObj_New #define CFMutableArrayRefObj_Convert _CFMutableArrayRefObj_Convert extern PyObject *_CFDataRefObj_New(CFDataRef); extern int _CFDataRefObj_Convert(PyObject *, CFDataRef *); #define CFDataRefObj_New _CFDataRefObj_New #define CFDataRefObj_Convert _CFDataRefObj_Convert extern PyObject *_CFMutableDataRefObj_New(CFMutableDataRef); extern int _CFMutableDataRefObj_Convert(PyObject *, CFMutableDataRef *); #define CFMutableDataRefObj_New _CFMutableDataRefObj_New #define CFMutableDataRefObj_Convert _CFMutableDataRefObj_Convert extern PyObject *_CFDictionaryRefObj_New(CFDictionaryRef); extern int _CFDictionaryRefObj_Convert(PyObject *, CFDictionaryRef *); #define CFDictionaryRefObj_New _CFDictionaryRefObj_New #define CFDictionaryRefObj_Convert _CFDictionaryRefObj_Convert extern PyObject *_CFMutableDictionaryRefObj_New(CFMutableDictionaryRef); extern int _CFMutableDictionaryRefObj_Convert(PyObject *, CFMutableDictionaryRef *); #define CFMutableDictionaryRefObj_New _CFMutableDictionaryRefObj_New #define CFMutableDictionaryRefObj_Convert _CFMutableDictionaryRefObj_Convert extern PyObject *_CFURLRefObj_New(CFURLRef); extern int _CFURLRefObj_Convert(PyObject *, CFURLRef *); extern int _OptionalCFURLRefObj_Convert(PyObject *, CFURLRef *); #define CFURLRefObj_New _CFURLRefObj_New #define CFURLRefObj_Convert _CFURLRefObj_Convert #define OptionalCFURLRefObj_Convert _OptionalCFURLRefObj_Convert #endif /* ** Parse/generate CFRange records */ PyObject *CFRange_New(CFRange *itself) { return Py_BuildValue("ll", (long)itself->location, (long)itself->length); } int CFRange_Convert(PyObject *v, CFRange *p_itself) { long location, length; if( !PyArg_ParseTuple(v, "ll", &location, &length) ) return 0; p_itself->location = (CFIndex)location; p_itself->length = (CFIndex)length; return 1; } /* Optional CFURL argument or None (passed as NULL) */ int OptionalCFURLRefObj_Convert(PyObject *v, CFURLRef *p_itself) { if ( v == Py_None ) { p_itself = NULL; return 1; } return CFURLRefObj_Convert(v, p_itself); } """ initstuff = initstuff + """ PyMac_INIT_TOOLBOX_OBJECT_NEW(CFTypeRef, CFTypeRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFTypeRef, CFTypeRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFStringRef, CFStringRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFStringRef, CFStringRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFMutableStringRef, CFMutableStringRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFMutableStringRef, CFMutableStringRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFArrayRef, CFArrayRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFArrayRef, CFArrayRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFMutableArrayRef, CFMutableArrayRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFMutableArrayRef, CFMutableArrayRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFDictionaryRef, CFDictionaryRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFDictionaryRef, CFDictionaryRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFMutableDictionaryRef, CFMutableDictionaryRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFMutableDictionaryRef, CFMutableDictionaryRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_NEW(CFURLRef, CFURLRefObj_New); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFURLRef, CFURLRefObj_Convert); PyMac_INIT_TOOLBOX_OBJECT_CONVERT(CFURLRef, CFURLRefObj_Convert); """ Boolean = Type("Boolean", "l") CFTypeID = Type("CFTypeID", "l") # XXXX a guess, seems better than OSTypeType. CFHashCode = Type("CFHashCode", "l") CFIndex = Type("CFIndex", "l") CFRange = OpaqueByValueType('CFRange', 'CFRange') CFOptionFlags = Type("CFOptionFlags", "l") CFStringEncoding = Type("CFStringEncoding", "l") CFComparisonResult = Type("CFComparisonResult", "l") # a bit dangerous, it's an enum CFURLPathStyle = Type("CFURLPathStyle", "l") # a bit dangerous, it's an enum char_ptr = stringptr return_stringptr = Type("char *", "s") # ONLY FOR RETURN VALUES!! CFAllocatorRef = FakeType("(CFAllocatorRef)NULL") CFArrayCallBacks_ptr = FakeType("&kCFTypeArrayCallBacks") CFDictionaryKeyCallBacks_ptr = FakeType("&kCFTypeDictionaryKeyCallBacks") CFDictionaryValueCallBacks_ptr = FakeType("&kCFTypeDictionaryValueCallBacks") # The real objects CFTypeRef = OpaqueByValueType("CFTypeRef", "CFTypeRefObj") CFArrayRef = OpaqueByValueType("CFArrayRef", "CFArrayRefObj") CFMutableArrayRef = OpaqueByValueType("CFMutableArrayRef", "CFMutableArrayRefObj") CFArrayRef = OpaqueByValueType("CFArrayRef", "CFArrayRefObj") CFMutableArrayRef = OpaqueByValueType("CFMutableArrayRef", "CFMutableArrayRefObj") CFDataRef = OpaqueByValueType("CFDataRef", "CFDataRefObj") CFMutableDataRef = OpaqueByValueType("CFMutableDataRef", "CFMutableDataRefObj") CFDictionaryRef = OpaqueByValueType("CFDictionaryRef", "CFDictionaryRefObj") CFMutableDictionaryRef = OpaqueByValueType("CFMutableDictionaryRef", "CFMutableDictionaryRefObj") CFStringRef = OpaqueByValueType("CFStringRef", "CFStringRefObj") CFMutableStringRef = OpaqueByValueType("CFMutableStringRef", "CFMutableStringRefObj") CFURLRef = OpaqueByValueType("CFURLRef", "CFURLRefObj") OptionalCFURLRef = OpaqueByValueType("CFURLRef", "OptionalCFURLRefObj") # ADD object type here # Our (opaque) objects class MyGlobalObjectDefinition(GlobalObjectDefinition): def outputCheckNewArg(self): Output("if (itself == NULL) return PyMac_Error(resNotFound);") def outputStructMembers(self): GlobalObjectDefinition.outputStructMembers(self) Output("void (*ob_freeit)(CFTypeRef ptr);") def outputInitStructMembers(self): GlobalObjectDefinition.outputInitStructMembers(self) ## Output("it->ob_freeit = NULL;") Output("it->ob_freeit = CFRelease;") def outputCheckConvertArg(self): Out(""" if (v == Py_None) { *p_itself = NULL; return 1; } /* Check for other CF objects here */ """) def outputCleanupStructMembers(self): Output("if (self->ob_freeit && self->ob_itself)") OutLbrace() Output("self->ob_freeit((CFTypeRef)self->ob_itself);") OutRbrace() def outputCompare(self): Output() Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype) OutLbrace() Output("/* XXXX Or should we use CFEqual?? */") Output("if ( self->ob_itself > other->ob_itself ) return 1;") Output("if ( self->ob_itself < other->ob_itself ) return -1;") Output("return 0;") OutRbrace() def outputHash(self): Output() Output("static int %s_hash(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("/* XXXX Or should we use CFHash?? */") Output("return (int)self->ob_itself;") OutRbrace() def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", CFGetTypeID(self->ob_itself), (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFTypeRefObjectDefinition(MyGlobalObjectDefinition): pass class CFArrayRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFTypeRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFMutableArrayRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFArrayRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFDictionaryRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFTypeRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFMutableDictionaryRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFDictionaryRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFDataRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFTypeRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFMutableDataRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFDataRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFStringRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFTypeRefObj_chain" def outputCheckConvertArg(self): Out(""" if (v == Py_None) { *p_itself = NULL; return 1; } if (PyString_Check(v)) { char *cStr = PyString_AsString(v); *p_itself = CFStringCreateWithCString((CFAllocatorRef)NULL, cStr, 0); return 1; } if (PyUnicode_Check(v)) { /* We use the CF types here, if Python was configured differently that will give an error */ CFIndex size = PyUnicode_GetSize(v); UniChar *unichars = PyUnicode_AsUnicode(v); if (!unichars) return 0; *p_itself = CFStringCreateWithCharacters((CFAllocatorRef)NULL, unichars, size); return 1; } """) def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFMutableStringRefObjectDefinition(CFStringRefObjectDefinition): basechain = "&CFStringRefObj_chain" def outputCheckConvertArg(self): # Mutable, don't allow Python strings return MyGlobalObjectDefinition.outputCheckConvertArg(self) def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() class CFURLRefObjectDefinition(MyGlobalObjectDefinition): basechain = "&CFTypeRefObj_chain" def outputRepr(self): Output() Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype) OutLbrace() Output("char buf[100];") Output("""sprintf(buf, "", (unsigned)self, (unsigned)self->ob_itself);""") Output("return PyString_FromString(buf);") OutRbrace() # ADD object class here # From here on it's basically all boiler plate... # Create the generator groups and link them module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff) CFTypeRef_object = CFTypeRefObjectDefinition('CFTypeRef', 'CFTypeRefObj', 'CFTypeRef') CFArrayRef_object = CFArrayRefObjectDefinition('CFArrayRef', 'CFArrayRefObj', 'CFArrayRef') CFMutableArrayRef_object = CFMutableArrayRefObjectDefinition('CFMutableArrayRef', 'CFMutableArrayRefObj', 'CFMutableArrayRef') CFDictionaryRef_object = CFDictionaryRefObjectDefinition('CFDictionaryRef', 'CFDictionaryRefObj', 'CFDictionaryRef') CFMutableDictionaryRef_object = CFMutableDictionaryRefObjectDefinition('CFMutableDictionaryRef', 'CFMutableDictionaryRefObj', 'CFMutableDictionaryRef') CFDataRef_object = CFDataRefObjectDefinition('CFDataRef', 'CFDataRefObj', 'CFDataRef') CFMutableDataRef_object = CFMutableDataRefObjectDefinition('CFMutableDataRef', 'CFMutableDataRefObj', 'CFMutableDataRef') CFStringRef_object = CFStringRefObjectDefinition('CFStringRef', 'CFStringRefObj', 'CFStringRef') CFMutableStringRef_object = CFMutableStringRefObjectDefinition('CFMutableStringRef', 'CFMutableStringRefObj', 'CFMutableStringRef') CFURLRef_object = CFURLRefObjectDefinition('CFURLRef', 'CFURLRefObj', 'CFURLRef') # ADD object here module.addobject(CFTypeRef_object) module.addobject(CFArrayRef_object) module.addobject(CFMutableArrayRef_object) module.addobject(CFDictionaryRef_object) module.addobject(CFMutableDictionaryRef_object) module.addobject(CFDataRef_object) module.addobject(CFMutableDataRef_object) module.addobject(CFStringRef_object) module.addobject(CFMutableStringRef_object) module.addobject(CFURLRef_object) # ADD addobject call here # Create the generator classes used to populate the lists Function = OSErrWeakLinkFunctionGenerator Method = OSErrWeakLinkMethodGenerator # Create and populate the lists functions = [] CFTypeRef_methods = [] CFArrayRef_methods = [] CFMutableArrayRef_methods = [] CFDictionaryRef_methods = [] CFMutableDictionaryRef_methods = [] CFDataRef_methods = [] CFMutableDataRef_methods = [] CFStringRef_methods = [] CFMutableStringRef_methods = [] CFURLRef_methods = [] # ADD _methods initializer here 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 CFTypeRef_methods: CFTypeRef_object.add(f) for f in CFArrayRef_methods: CFArrayRef_object.add(f) for f in CFMutableArrayRef_methods: CFMutableArrayRef_object.add(f) for f in CFDictionaryRef_methods: CFDictionaryRef_object.add(f) for f in CFMutableDictionaryRef_methods: CFMutableDictionaryRef_object.add(f) for f in CFDataRef_methods: CFDataRef_object.add(f) for f in CFMutableDataRef_methods: CFMutableDataRef_object.add(f) for f in CFStringRef_methods: CFStringRef_object.add(f) for f in CFMutableStringRef_methods: CFMutableStringRef_object.add(f) for f in CFURLRef_methods: CFURLRef_object.add(f) # Manual generators for getting data out of strings getasstring_body = """ int size = CFStringGetLength(_self->ob_itself)+1; char *data = malloc(size); if( data == NULL ) return PyErr_NoMemory(); if ( CFStringGetCString(_self->ob_itself, data, size, 0) ) { _res = (PyObject *)PyString_FromString(data); } else { PyErr_SetString(PyExc_RuntimeError, "CFStringGetCString could not fit the string"); _res = NULL; } free(data); return _res; """ f = ManualGenerator("CFStringGetString", getasstring_body); f.docstring = lambda: "() -> (string _rv)" CFStringRef_object.add(f) getasunicode_body = """ int size = CFStringGetLength(_self->ob_itself)+1; Py_UNICODE *data = malloc(size*sizeof(Py_UNICODE)); CFRange range; range.location = 0; range.length = size; if( data == NULL ) return PyErr_NoMemory(); CFStringGetCharacters(_self->ob_itself, range, data); _res = (PyObject *)PyUnicode_FromUnicode(data, size); free(data); return _res; """ f = ManualGenerator("CFStringGetUnicode", getasunicode_body); f.docstring = lambda: "() -> (unicode _rv)" CFStringRef_object.add(f) toPython_body = """ return PyCF_CF2Python(_self->ob_itself); """ f = ManualGenerator("toPython", toPython_body); f.docstring = lambda: "() -> (python_object)" CFTypeRef_object.add(f) toCF_body = """ CFTypeRef rv; CFTypeID typeid; if (!PyArg_ParseTuple(_args, "O&", PyCF_Python2CF, &rv)) return NULL; typeid = CFGetTypeID(rv); if (typeid == CFStringGetTypeID()) return Py_BuildValue("O&", CFStringRefObj_New, rv); if (typeid == CFArrayGetTypeID()) return Py_BuildValue("O&", CFArrayRefObj_New, rv); if (typeid == CFDictionaryGetTypeID()) return Py_BuildValue("O&", CFDictionaryRefObj_New, rv); if (typeid == CFURLGetTypeID()) return Py_BuildValue("O&", CFURLRefObj_New, rv); return Py_BuildValue("O&", CFTypeRefObj_New, rv); """ f = ManualGenerator("toCF", toCF_body); f.docstring = lambda: "(python_object) -> (CF_object)" module.add(f) # ADD add forloop here # generate output (open the output file as late as possible) SetOutputFileName(OUTPUTFILE) module.generate()