cpython/Mac/Modules/cf/cfsupport.py

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# 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 <CFBase.h>
#include <CFArray.h>
#include <CFData.h>
#include <CFDictionary.h>
#include <CFString.h>
#include <CFURL.h>
#else
#include <CoreServices/CoreServices.h>
#endif
#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];")
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Output("""sprintf(buf, "<CFTypeRef type-%%d object at 0x%%8.8x for 0x%%8.8x>", 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];")
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Output("""sprintf(buf, "<CFArrayRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFMutableArrayRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFDictionaryRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFMutableDictionaryRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFDataRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFMutableDataRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFStringRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFMutableStringRef object at 0x%%8.8x for 0x%%8.8x>", (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];")
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Output("""sprintf(buf, "<CFURL object at 0x%%8.8x for 0x%%8.8x>", (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)
# ADD add forloop here
# generate output (open the output file as late as possible)
SetOutputFileName(OUTPUTFILE)
module.generate()