442 lines
15 KiB
Python
442 lines
15 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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#error missing SetActionFilter
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import string
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# Declarations that change for each manager
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MODNAME = '_CF' # The name of the module
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# The following is *usually* unchanged but may still require tuning
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MODPREFIX = 'CF' # The prefix for module-wide routines
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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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# Special case generator for the functions that have an AllocatorRef first argument,
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# which we skip anyway, and the object as the second arg.
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class MethodSkipArg1(MethodGenerator):
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"""Similar to MethodGenerator, but has self as last argument"""
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def parseArgumentList(self, args):
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if len(args) < 2:
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raise ValueError, "MethodSkipArg1 expects at least 2 args"
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a0, a1, args = args[0], args[1], args[2:]
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t0, n0, m0 = a0
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if t0 != "CFAllocatorRef" and m0 != InMode:
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raise ValueError, "MethodSkipArg1 should have dummy AllocatorRef first arg"
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t1, n1, m1 = a1
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if m1 != InMode:
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raise ValueError, "method's 'self' must be 'InMode'"
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dummy = Variable(t0, n0, m0)
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self.argumentList.append(dummy)
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self.itself = Variable(t1, "_self->ob_itself", SelfMode)
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self.argumentList.append(self.itself)
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FunctionGenerator.parseArgumentList(self, args)
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# Create the type objects
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includestuff = includestuff + """
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#ifdef WITHOUT_FRAMEWORKS
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#include <CFBase.h>
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#include <CFArray.h>
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#include <CFData.h>
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#include <CFDictionary.h>
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#include <CFString.h>
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#include <CFURL.h>
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#else
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#include <CoreServices/CoreServices.h>
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#endif
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/* For now we declare them forward here. They'll go to mactoolbox later */
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staticforward PyObject *CFTypeRefObj_New(CFTypeRef);
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staticforward int CFTypeRefObj_Convert(PyObject *, CFTypeRef *);
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staticforward PyObject *CFStringRefObj_New(CFStringRef);
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staticforward int CFStringRefObj_Convert(PyObject *, CFStringRef *);
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staticforward PyObject *CFURLRefObj_New(CFURLRef);
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staticforward int CFURLRefObj_Convert(PyObject *, CFURLRef *);
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staticforward int CFURLRefObj_Convert(PyObject *, CFURLRef *);
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// ADD declarations
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#ifdef NOTYET_USE_TOOLBOX_OBJECT_GLUE
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//extern PyObject *_CFTypeRefObj_New(CFTypeRef);
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//extern int _CFTypeRefObj_Convert(PyObject *, CFTypeRef *);
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//#define CFTypeRefObj_New _CFTypeRefObj_New
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//#define CFTypeRefObj_Convert _CFTypeRefObj_Convert
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#endif
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/*
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** Parse/generate CFRange records
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*/
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PyObject *CFRange_New(CFRange *itself)
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{
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return Py_BuildValue("ll", (long)itself->location, (long)itself->length);
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}
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CFRange_Convert(PyObject *v, CFRange *p_itself)
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{
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long location, length;
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if( !PyArg_ParseTuple(v, "ll", &location, &length) )
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return 0;
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p_itself->location = (CFIndex)location;
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p_itself->length = (CFIndex)length;
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return 1;
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}
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/* Optional CFURL argument or None (passed as NULL) */
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int
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OptionalCFURLRefObj_Convert(PyObject *v, CFURLRef *p_itself)
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{
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if ( v == Py_None ) {
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p_itself = NULL;
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return 1;
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}
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return CFURLRefObj_Convert(v, p_itself);
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}
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"""
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initstuff = initstuff + """
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// PyMac_INIT_TOOLBOX_OBJECT_NEW(Track, TrackObj_New);
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// PyMac_INIT_TOOLBOX_OBJECT_CONVERT(Track, TrackObj_Convert);
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"""
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Boolean = Type("Boolean", "l")
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CFTypeID = Type("CFTypeID", "l") # XXXX a guess, seems better than OSTypeType.
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CFHashCode = Type("CFHashCode", "l")
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CFIndex = Type("CFIndex", "l")
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CFRange = OpaqueByValueType('CFRange', 'CFRange')
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CFOptionFlags = Type("CFOptionFlags", "l")
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CFStringEncoding = Type("CFStringEncoding", "l")
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CFComparisonResult = Type("CFComparisonResult", "l") # a bit dangerous, it's an enum
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CFURLPathStyle = Type("CFURLPathStyle", "l") # a bit dangerous, it's an enum
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char_ptr = stringptr
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return_stringptr = Type("char *", "s") # ONLY FOR RETURN VALUES!!
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CFAllocatorRef = FakeType("(CFAllocatorRef)NULL")
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CFArrayCallBacks_ptr = FakeType("&kCFTypeArrayCallBacks")
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CFDictionaryKeyCallBacks_ptr = FakeType("&kCFTypeDictionaryKeyCallBacks")
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CFDictionaryValueCallBacks_ptr = FakeType("&kCFTypeDictionaryValueCallBacks")
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# The real objects
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CFTypeRef = OpaqueByValueType("CFTypeRef", "CFTypeRefObj")
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CFArrayRef = OpaqueByValueType("CFArrayRef", "CFArrayRefObj")
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CFMutableArrayRef = OpaqueByValueType("CFMutableArrayRef", "CFMutableArrayRefObj")
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CFArrayRef = OpaqueByValueType("CFArrayRef", "CFArrayRefObj")
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CFMutableArrayRef = OpaqueByValueType("CFMutableArrayRef", "CFMutableArrayRefObj")
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CFDataRef = OpaqueByValueType("CFDataRef", "CFDataRefObj")
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CFMutableDataRef = OpaqueByValueType("CFMutableDataRef", "CFMutableDataRefObj")
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CFDictionaryRef = OpaqueByValueType("CFDictionaryRef", "CFDictionaryRefObj")
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CFMutableDictionaryRef = OpaqueByValueType("CFMutableDictionaryRef", "CFMutableDictionaryRefObj")
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CFStringRef = OpaqueByValueType("CFStringRef", "CFStringRefObj")
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CFMutableStringRef = OpaqueByValueType("CFMutableStringRef", "CFMutableStringRefObj")
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CFURLRef = OpaqueByValueType("CFURLRef", "CFURLRefObj")
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OptionalCFURLRef = OpaqueByValueType("CFURLRef", "OptionalCFURLRefObj")
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# ADD object type here
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# Our (opaque) objects
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class MyGlobalObjectDefinition(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 outputStructMembers(self):
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GlobalObjectDefinition.outputStructMembers(self)
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Output("void (*ob_freeit)(CFTypeRef ptr);")
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def outputInitStructMembers(self):
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GlobalObjectDefinition.outputInitStructMembers(self)
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## Output("it->ob_freeit = NULL;")
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Output("it->ob_freeit = CFRelease;")
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def outputCheckConvertArg(self):
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Out("""
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if (v == Py_None) { *p_itself = NULL; return 1; }
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/* Check for other CF objects here */
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""")
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def outputCleanupStructMembers(self):
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Output("if (self->ob_freeit && self->ob_itself)")
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OutLbrace()
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Output("self->ob_freeit((CFTypeRef)self->ob_itself);")
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OutRbrace()
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def outputCompare(self):
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Output()
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Output("static int %s_compare(%s *self, %s *other)", self.prefix, self.objecttype, self.objecttype)
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OutLbrace()
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Output("/* XXXX Or should we use CFEqual?? */")
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Output("if ( self->ob_itself > other->ob_itself ) return 1;")
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Output("if ( self->ob_itself < other->ob_itself ) return -1;")
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Output("return 0;")
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OutRbrace()
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def outputHash(self):
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Output()
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Output("static int %s_hash(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("/* XXXX Or should we use CFHash?? */")
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Output("return (int)self->ob_itself;")
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OutRbrace()
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFTypeRef type-%%d object at 0x%%08.8x for 0x%%08.8x>", CFGetTypeID(self->ob_itself), self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFTypeRefObjectDefinition(MyGlobalObjectDefinition):
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pass
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class CFArrayRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFTypeRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFArrayRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFMutableArrayRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFArrayRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFMutableArrayRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFDictionaryRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFTypeRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFDictionaryRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFMutableDictionaryRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFDictionaryRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFMutableDictionaryRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFDataRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFTypeRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFDataRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFMutableDataRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFDataRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFMutableDataRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFStringRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFTypeRefObj_chain"
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def outputCheckConvertArg(self):
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Out("""
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if (v == Py_None) { *p_itself = NULL; return 1; }
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if (PyString_Check(v)) {
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char *cStr = PyString_AsString(v);
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*p_itself = CFStringCreateWithCString((CFAllocatorRef)NULL, cStr, 0);
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return 1;
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}
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if (PyUnicode_Check(v)) {
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/* We use the CF types here, if Python was configured differently that will give an error */
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CFIndex size = PyUnicode_GetSize(v);
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UniChar *unichars = PyUnicode_AsUnicode(v);
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if (!unichars) return 0;
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*p_itself = CFStringCreateWithCharacters((CFAllocatorRef)NULL, unichars, size);
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return 1;
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}
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""")
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFStringRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFMutableStringRefObjectDefinition(CFStringRefObjectDefinition):
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basechain = "&CFStringRefObj_chain"
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def outputCheckConvertArg(self):
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# Mutable, don't allow Python strings
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return MyGlobalObjectDefinition.outputCheckConvertArg(self)
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFMutableStringRef object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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class CFURLRefObjectDefinition(MyGlobalObjectDefinition):
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basechain = "&CFTypeRefObj_chain"
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def outputRepr(self):
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Output()
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Output("static PyObject * %s_repr(%s *self)", self.prefix, self.objecttype)
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OutLbrace()
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Output("char buf[100];")
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Output("""sprintf(buf, "<CFURL object at 0x%%08.8x for 0x%%08.8x>", self, self->ob_itself);""")
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Output("return PyString_FromString(buf);")
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OutRbrace()
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# ADD object class here
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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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CFTypeRef_object = CFTypeRefObjectDefinition('CFTypeRef', 'CFTypeRefObj', 'CFTypeRef')
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CFArrayRef_object = CFArrayRefObjectDefinition('CFArrayRef', 'CFArrayRefObj', 'CFArrayRef')
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CFMutableArrayRef_object = CFMutableArrayRefObjectDefinition('CFMutableArrayRef', 'CFMutableArrayRefObj', 'CFMutableArrayRef')
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CFDictionaryRef_object = CFDictionaryRefObjectDefinition('CFDictionaryRef', 'CFDictionaryRefObj', 'CFDictionaryRef')
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CFMutableDictionaryRef_object = CFMutableDictionaryRefObjectDefinition('CFMutableDictionaryRef', 'CFMutableDictionaryRefObj', 'CFMutableDictionaryRef')
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CFDataRef_object = CFDataRefObjectDefinition('CFDataRef', 'CFDataRefObj', 'CFDataRef')
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CFMutableDataRef_object = CFMutableDataRefObjectDefinition('CFMutableDataRef', 'CFMutableDataRefObj', 'CFMutableDataRef')
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CFStringRef_object = CFStringRefObjectDefinition('CFStringRef', 'CFStringRefObj', 'CFStringRef')
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CFMutableStringRef_object = CFMutableStringRefObjectDefinition('CFMutableStringRef', 'CFMutableStringRefObj', 'CFMutableStringRef')
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CFURLRef_object = CFURLRefObjectDefinition('CFURLRef', 'CFURLRefObj', 'CFURLRef')
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# ADD object here
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module.addobject(CFTypeRef_object)
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module.addobject(CFArrayRef_object)
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module.addobject(CFMutableArrayRef_object)
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module.addobject(CFDictionaryRef_object)
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module.addobject(CFMutableDictionaryRef_object)
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module.addobject(CFDataRef_object)
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module.addobject(CFMutableDataRef_object)
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module.addobject(CFStringRef_object)
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module.addobject(CFMutableStringRef_object)
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module.addobject(CFURLRef_object)
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# ADD addobject call here
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# Create the generator classes used to populate the lists
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Function = OSErrWeakLinkFunctionGenerator
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Method = OSErrWeakLinkMethodGenerator
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# Create and populate the lists
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functions = []
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CFTypeRef_methods = []
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CFArrayRef_methods = []
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CFMutableArrayRef_methods = []
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CFDictionaryRef_methods = []
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CFMutableDictionaryRef_methods = []
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CFDataRef_methods = []
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CFMutableDataRef_methods = []
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CFStringRef_methods = []
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CFMutableStringRef_methods = []
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CFURLRef_methods = []
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# ADD _methods initializer here
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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 CFTypeRef_methods: CFTypeRef_object.add(f)
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for f in CFArrayRef_methods: CFArrayRef_object.add(f)
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for f in CFMutableArrayRef_methods: CFMutableArrayRef_object.add(f)
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for f in CFDictionaryRef_methods: CFDictionaryRef_object.add(f)
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for f in CFMutableDictionaryRef_methods: CFMutableDictionaryRef_object.add(f)
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for f in CFDataRef_methods: CFDataRef_object.add(f)
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for f in CFMutableDataRef_methods: CFMutableDataRef_object.add(f)
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for f in CFStringRef_methods: CFStringRef_object.add(f)
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for f in CFMutableStringRef_methods: CFMutableStringRef_object.add(f)
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for f in CFURLRef_methods: CFURLRef_object.add(f)
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# Manual generators for getting data out of strings
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getasstring_body = """
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int size = CFStringGetLength(_self->ob_itself)+1;
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char *data = malloc(size);
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if( data == NULL ) return PyErr_NoMemory();
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if ( CFStringGetCString(_self->ob_itself, data, size, 0) ) {
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_res = (PyObject *)PyString_FromString(data);
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} else {
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PyErr_SetString(PyExc_RuntimeError, "CFStringGetCString could not fit the string");
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_res = NULL;
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}
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free(data);
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return _res;
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"""
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f = ManualGenerator("CFStringGetString", getasstring_body);
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f.docstring = lambda: "() -> (string _rv)"
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CFStringRef_object.add(f)
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getasunicode_body = """
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int size = CFStringGetLength(_self->ob_itself)+1;
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Py_UNICODE *data = malloc(size*sizeof(Py_UNICODE));
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CFRange range;
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range.location = 0;
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range.length = size;
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if( data == NULL ) return PyErr_NoMemory();
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CFStringGetCharacters(_self->ob_itself, range, data);
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_res = (PyObject *)PyUnicode_FromUnicode(data, size);
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free(data);
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return _res;
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"""
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f = ManualGenerator("CFStringGetUnicode", getasunicode_body);
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f.docstring = lambda: "() -> (unicode _rv)"
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CFStringRef_object.add(f)
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# ADD add forloop here
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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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