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Diffstat (limited to 'Mac/Modules/list/listsupport.py')
-rw-r--r-- | Mac/Modules/list/listsupport.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/Mac/Modules/list/listsupport.py b/Mac/Modules/list/listsupport.py new file mode 100644 index 0000000..fa1e9c4 --- /dev/null +++ b/Mac/Modules/list/listsupport.py @@ -0,0 +1,84 @@ +# 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). + +import string + +# Declarations that change for each manager +MACHEADERFILE = 'Lists.h' # The Apple header file +MODNAME = 'List' # The name of the module +OBJECTNAME = 'List' # The basic name of the objects used here +KIND = 'Handle' # Usually 'Ptr' or 'Handle' + +# The following is *usually* unchanged but may still require tuning +MODPREFIX = MODNAME # The prefix for module-wide routines +OBJECTTYPE = "ListRef" # The C type used to represent them +OBJECTPREFIX = MODPREFIX + 'Obj' # The prefix for object methods +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 +ListRef = OpaqueByValueType("ListRef", "ListObj") +Cell = Point +VarOutBufferShortsize = VarHeapOutputBufferType('char', 'short', 's') # (buf, &len) +InBufferShortsize = VarInputBufferType('char', 'short', 's') # (buf, len) + +# For LUpdate, we alsways update the complete visible region. +RgnHandle = FakeType("(*_self->ob_itself)->port->visRgn") + + +includestuff = includestuff + """ +#include <%s>""" % MACHEADERFILE + """ +""" + +class ListMethodGenerator(MethodGenerator): + """Similar to MethodGenerator, but has self as last argument""" + + def parseArgumentList(self, args): + args, a0 = args[:-1], args[-1] + t0, n0, m0 = a0 + if m0 != InMode: + raise ValueError, "method's 'self' must be 'InMode'" + self.itself = Variable(t0, "_self->ob_itself", SelfMode) + FunctionGenerator.parseArgumentList(self, args) + self.argumentList.append(self.itself) + + + +class MyObjectDefinition(GlobalObjectDefinition): + def outputCheckNewArg(self): + Output("""if (itself == NULL) { + PyErr_SetString(List_Error,"Cannot create null List"); + return NULL; + }""") + def outputFreeIt(self, itselfname): + Output("LDispose(%s);", itselfname) + +# From here on it's basically all boiler plate... + +# Create the generator groups and link them +module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff) +object = MyObjectDefinition(OBJECTNAME, OBJECTPREFIX, OBJECTTYPE) +module.addobject(object) + +# Create the generator classes used to populate the lists +Function = FunctionGenerator +Method = ListMethodGenerator + +# Create and populate the lists +functions = [] +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 methods: object.add(f) + +# generate output (open the output file as late as possible) +SetOutputFileName(OUTPUTFILE) +module.generate() + |