First small step towards bgen-generated CoreFoundation. there is hardly any...

First small step towards bgen-generated CoreFoundation. there is hardly any real functionality yet, but method chains seem to work, and so do Retain/Release semantics.

Mac/Modules/cf/cfscan.py

+# Scan an Apple header file, generating a Python file of generator calls.
+
+import sys
+import os
+BGENDIR=os.path.join(sys.prefix, ':Tools:bgen:bgen')
+sys.path.append(BGENDIR)
+from scantools import Scanner_OSX
+from bgenlocations import TOOLBOXDIR
+
+LONG = "CoreFoundation"
+SHORT = "cf"
+OBJECTS = ("CFTypeRef", "CFStringRef")
+
+def main():
+	input = [
+		"CFBase.h",
+###		"CFArray.h",
+##		"CFBag.h",
+##		"CFBundle.h",
+##		"CFCharacterSet.h",
+###		"CFData.h",
+##		"CFDate.h",
+###		"CFDictionary.h",
+##		"CFNumber.h",
+##		"CFPlugIn.h",
+##		"CFPreferences.h",
+##		"CFPropertyList.h",
+##		"CFSet.h",
+###		"CFString.h",
+##		"CFStringEncodingExt.h",
+##		"CFTimeZone.h",
+##		"CFURL.h",
+		]
+	output = SHORT + "gen.py"
+	defsoutput = TOOLBOXDIR + LONG + ".py"
+	scanner = MyScanner(input, output, defsoutput)
+	scanner.scan()
+	scanner.gentypetest(SHORT+"typetest.py")
+	scanner.close()
+	print "=== Done scanning and generating, now importing the generated code... ==="
+	exec "import " + SHORT + "support"
+	print "=== Done.  It's up to you to compile it now! ==="
+
+class MyScanner(Scanner_OSX):
+
+	def destination(self, type, name, arglist):
+		classname = "Function"
+		listname = "functions"
+		if arglist:
+			t, n, m = arglist[0]
+			if t in OBJECTS and m == "InMode":
+				classname = "Method"
+				listname = t + "_methods"
+		return classname, listname
+
+	def writeinitialdefs(self):
+		self.defsfile.write("def FOUR_CHAR_CODE(x): return x\n")
+
+	def makeblacklistnames(self):
+		return [
+			# Memory allocator functions
+			"CFAllocatorGetDefault",
+			"CFAllocatorSetDefault",
+			"CFAllocatorAllocate",
+			"CFAllocatorReallocate",
+			"CFAllocatorDeallocate",
+			"CFGetAllocator",
+			]
+
+	def makegreylist(self):
+		return []
+
+	def makeblacklisttypes(self):
+		return [
+			"CFAllocatorContext",
+			]
+
+	def makerepairinstructions(self):
+		return [
+			]
+			
+if __name__ == "__main__":
+	main()

Mac/Modules/cf/cfsupport.py

+# 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 = MODNAME			# 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 *
+
+# Create the type objects
+
+includestuff = includestuff + """
+#ifdef WITHOUT_FRAMEWORKS
+#include <CoreFoundation.h>
+#else
+#include <CoreFoundation.h>
+#endif
+
+/* For now we declare them forward here. They'll go to mactoolbox later */
+extern PyObject *CFTypeRefObj_New(CFTypeRef);
+extern int CFTypeRefObj_Convert(PyObject *, CFTypeRef *);
+extern PyObject *CFStringRefObj_New(CFStringRef);
+extern int CFStringRefObj_Convert(PyObject *, CFStringRef *);
+
+#ifdef NOTYET_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
+#endif
+
+"""
+
+initstuff = initstuff + """
+//	PyMac_INIT_TOOLBOX_OBJECT_NEW(Track, TrackObj_New);
+//	PyMac_INIT_TOOLBOX_OBJECT_CONVERT(Track, TrackObj_Convert);
+"""
+
+Boolean = Type("Boolean", "l")
+CFTypeID = Type("CFTypeID", "l") # XXXX a guess, seems better than OSTypeType.
+CFHashCode = Type("CFHashCode", "l")
+CFIndex = Type("CFIndex", "l")
+CFOptionFlags = Type("CFOptionFlags", "l")
+## CFStringRef = XXXX
+CFAllocatorRef = FakeType("(CFAllocatorRef)NULL")
+
+# The real objects
+CFTypeRef = OpaqueByValueType("CFTypeRef", "CFTypeRefObj")
+CFStringRef = OpaqueByValueType("CFStringRef", "CFStringRefObj")
+
+# Our (opaque) objects
+
+class MyGlobalObjectDefinition(GlobalObjectDefinition):
+	def outputCheckNewArg(self):
+		Output("if (itself == NULL) return PyMac_Error(resNotFound);")
+		Output("CFRetain(itself);")
+	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, "<CFTypeRef type-%%d object at 0x%%08.8x for 0x%%08.8x>", CFGetTypeID(self->ob_itself), self, self->ob_itself);""")
+		Output("return PyString_FromString(buf);")
+		OutRbrace()
+
+class CFTypeRefObjectDefinition(MyGlobalObjectDefinition):
+	pass
+	
+class CFStringRefObjectDefinition(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, "<CFString object at 0x%%08.8x for 0x%%08.8x>", CFGetTypeID(self->ob_itself), self, self->ob_itself);""")
+		Output("return PyString_FromString(buf);")
+		OutRbrace()
+	
+# 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')
+CFStringRef_object = CFTypeRefObjectDefinition('CFStringRef', 'CFStringRefObj', 'CFStringRef')
+
+module.addobject(CFTypeRef_object)
+module.addobject(CFStringRef_object)
+
+# Create the generator classes used to populate the lists
+Function = OSErrFunctionGenerator
+Method = OSErrMethodGenerator
+
+# Create and populate the lists
+functions = []
+CFTypeRef_methods = []
+CFStringRef_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 CFTypeRef_methods: CFTypeRef_object.add(f)
+for f in CFStringRef_methods: CFStringRef_object.add(f)
+
+# generate output (open the output file as late as possible)
+SetOutputFileName(OUTPUTFILE)
+module.generate()
+