wxWidgets/wxPython/distrib/build_renamers.py
Robin Dunn 8994c3c20c Run swig from the main setup.py when building the renamer's XML
instead of from build_renamers.py.  This makes it easy to ensure that
the same flags are used.  Also, use the new swig flag to generate the
XML after the python language module has run, rather than instead of.
This gives us more info in the xml output.

Updated build_renamers.py to expect the xml file to already be
generated, and also allow it to run with a xml doc tree from libxml2
rather than the xml.sax module.  This makes the extraction of info
much cleaner and logical since we usually need info from child or
grandchild nodes.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24780 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-12-11 20:03:42 +00:00

481 lines
16 KiB
Python
Executable File

#!/usr/bin/env python
#---------------------------------------------------------------------------
"""
Usage: build_renamers.py destdir modulename filename.xml
Scans the XML file produced by SWIG (see setup.py) and generate the
%rename directives needed to implement the new wx namespace. The
rename directives are output in a file named _modulename_rename.i in
the destdir given.
Also output a reverse 'renamer' Python module located in
wxPython/filename.py (relative the the current dir) to make a
backwards compatibility interface for the old wxPython packages.
"""
import sys, os, tempfile, pprint
import xml.sax
from distutils.spawn import spawn
try:
import libxml2
USE_LIBXML2 = True
except ImportError:
USE_LIBXML2 = False
wxPythonDir = "wxPython"
#---------------------------------------------------------------------------
renamerTemplateStart = """\
// A bunch of %%rename directives generated by %s
// in order to remove the wx prefix from all global scope names.
#ifndef BUILDING_RENAMERS
"""
renamerTemplateEnd = """
#endif
"""
wxPythonTemplateStart = """\
## This file reverse renames symbols in the wx package to give
## them their wx prefix again, for backwards compatibility.
##
## Generated by %s
# This silly stuff here is so the wxPython.wx module doesn't conflict
# with the wx package. We need to import modules from the wx package
# here, then we'll put the wxPython.wx entry back in sys.modules.
import sys
_wx = None
if sys.modules.has_key('wxPython.wx'):
_wx = sys.modules['wxPython.wx']
del sys.modules['wxPython.wx']
import wx.%s
sys.modules['wxPython.wx'] = _wx
del sys, _wx
# Now assign all the reverse-renamed names:
"""
wxPythonTemplateEnd = """
"""
#---------------------------------------------------------------------------
def main(args):
# check args
if len(args) < 3:
print __doc__
sys.exit(1)
# check location (there should be a wxPython subdir)
if not os.path.exists(wxPythonDir) or not os.path.isdir(wxPythonDir):
print __doc__
print "You should only run this script from the main wxPython source dir.\n"
sys.exit(1)
destdir = args[0]
modname = args[1]
xmlfile = args[2]
swigDest = os.path.join(destdir, "_"+modname+"_rename.i")
pyDest = os.path.join(wxPythonDir, modname + '.py')
swigDestTemp = tempfile.mktemp('.tmp')
swigFile = open(swigDestTemp, "w")
swigFile.write(renamerTemplateStart % sys.argv[0])
pyDestTemp = tempfile.mktemp('.tmp')
pyFile = open(pyDestTemp, "w")
pyFile.write(wxPythonTemplateStart % (sys.argv[0], modname))
try:
print "Parsing and building renamers",
if USE_LIBXML2:
processXML(xmlfile, modname, swigFile, pyFile)
else:
print "using xml.sax..."
xml.sax.parse(xmlfile, ContentHandler(modname, swigFile, pyFile))
finally:
checkOtherNames(pyFile, modname,
os.path.join(destdir, '_'+modname+'_reverse.txt'))
pyFile.write(wxPythonTemplateEnd)
pyFile.close()
swigFile.write(renamerTemplateEnd)
swigFile.close()
# Compare the files just created with the existing one and
# blow away the old one if they are different.
for dest, temp in [(swigDest, swigDestTemp),
(pyDest, pyDestTemp)]:
if open(dest).read() != open(temp).read():
os.unlink(dest)
os.rename(temp, dest)
else:
print dest + " not changed."
os.unlink(temp)
#---------------------------------------------------------------------------
def GetAttr(node, name):
path = "./attributelist/attribute[@name='%s']/@value" % name
n = node.xpathEval(path)
if len(n):
return n[0].content
else:
return None
def processXML(xmlfile, modname, swigFile, pyFile):
import libxml2
print "using libxml2..."
topnode = libxml2.parseFile(xmlfile).children
# remove any import nodes as we don't need to do renamers for symbols found therein
imports = topnode.xpathEval("*/import")
for n in imports:
n.unlinkNode()
n.freeNode()
# do a depth first iteration over what's left
for node in topnode:
doRename = False
doPtr = False
addWX = False
revOnly = False
if node.name == "class":
lastClassName = name = GetAttr(node, "name")
lastClassSymName = sym_name = GetAttr(node, "sym_name")
doRename = True
doPtr = True
if sym_name != name:
name = sym_name
addWX = True
# renamed constructors
elif node.name == "constructor":
name = GetAttr(node, "name")
sym_name = GetAttr(node, "sym_name")
if sym_name != name:
name = sym_name
addWX = True
doRename = True
# only enumitems at the top level
elif node.name == "enumitem" and node.parent.parent.name == "include":
name = GetAttr(node, "name")
sym_name = GetAttr(node, "sym_name")
doRename = True
elif node.name in ["cdecl", "constant"]:
name = GetAttr(node, "name")
sym_name = GetAttr(node, "sym_name")
toplevel = node.parent.name == "include"
# top-level functions
if toplevel and GetAttr(node, "view") == "globalfunctionHandler":
doRename = True
# top-level global vars
elif toplevel and GetAttr(node, "feature_immutable") == "1":
doRename = True
# static methods
elif GetAttr(node, "view") == "staticmemberfunctionHandler":
name = lastClassName + '_' + name
sym_name = lastClassSymName + '_' + sym_name
# only output the reverse renamer in this case
doRename = revOnly = True
if doRename and name != sym_name:
name = sym_name
addWX = True
if doRename:
old = new = name
if old.startswith('wx') and not old.startswith('wxEVT_'):
# remove all wx prefixes except wxEVT_ and write a %rename directive for it
new = old[2:]
if not revOnly:
swigFile.write("%%rename(%s) %35s;\n" % (new, old))
# Write assignments to import into the old wxPython namespace
if addWX and not old.startswith('wx'):
old = 'wx'+old
pyFile.write("%s = wx.%s.%s\n" % (old, modname, new))
if doPtr:
pyFile.write("%sPtr = wx.%s.%sPtr\n" % (old, modname, new))
#---------------------------------------------------------------------------
def checkOtherNames(pyFile, moduleName, filename):
if os.path.exists(filename):
prefixes = []
for line in file(filename):
if line.endswith('\n'):
line = line[:-1]
if line and not line.startswith('#'):
if line.endswith('*'):
prefixes.append(line[:-1])
elif line.find('=') != -1:
pyFile.write("%s\n" % line)
else:
wxname = 'wx' + line
if line.startswith('wx') or line.startswith('WX') or line.startswith('EVT'):
wxname = line
pyFile.write("%s = wx.%s.%s\n" % (wxname, moduleName, line))
if prefixes:
pyFile.write(
"\n\nd = globals()\nfor k, v in wx.%s.__dict__.iteritems():"
% moduleName)
first = True
for p in prefixes:
if first:
pyFile.write("\n if ")
first = False
else:
pyFile.write("\n elif ")
pyFile.write("k.startswith('%s'):\n d[k] = v" % p)
pyFile.write("\ndel d, k, v\n\n")
#---------------------------------------------------------------------------
interestingTypes = [ 'class', 'cdecl', 'enumitem', 'constructor', 'constant' ]
interestingAttrs = [ 'name', 'sym_name', 'decl', 'feature_immutable', 'module',
'storage', 'type' ]
class Element:
def __init__(self, tagtype):
self.tagtype = tagtype
self.level = -1
self.name = None
self.sym_name = None
self.decl = None
self.immutable = None
self.klass = None
self.module = None
self.storage = None
self.type = None
self.startLine = -1
def write(self, moduleName, swigFile, pyFile):
doRename = False
doPtr = False
addWX = False
revOnly = False
#if self.name.find('DefaultPosition') != -1:
# pprint.pprint(self.__dict__)
if self.tagtype in ['cdecl', 'constant']:
if self.storage == 'typedef':
pass
# top level functions
elif self.level == 0 and self.decl != "":
doRename = True
# top level global vars
elif self.level == 0 and self.immutable == '1':
doRename = True
# static methods
elif self.storage == 'static':
if not self.klass:
pprint.pprint(self.__dict__)
else:
self.name = self.klass + '_' + self.name
self.sym_name = self.sym_klass + '_' + self.sym_name
# only output the reverse renamer in this case
doRename = revOnly = True
if doRename and self.name != self.sym_name:
#print "%-25s %-25s" % (self.name, self.sym_name)
self.name = self.sym_name
addWX = True
elif self.tagtype == 'class' and self.module == moduleName:
doRename = True
doPtr = True
if self.sym_name != self.klass:
#print self.sym_name
self.name = self.sym_name
addWX = True
elif self.tagtype == 'constructor':
#print "%-25s %-25s" % (self.name, self.sym_name)
if self.sym_name != self.klass:
#print self.sym_name
self.name = self.sym_name
addWX = True
doRename = True
elif self.tagtype == 'enumitem' and self.level == 0:
doRename = True
if doRename:
#print "%-25s %-25s" % (self.name, self.sym_name)
old = new = self.name
if old.startswith('wx') and not old.startswith('wxEVT_'):
# remove all wx prefixes except wxEVT_ and write a %rename directive for it
new = old[2:]
if not revOnly:
swigFile.write("%%rename(%s) %35s;\n" % (new, old))
# Write assignments to import into the old wxPython namespace
if addWX and not old.startswith('wx'):
old = 'wx'+old
pyFile.write("%s = wx.%s.%s\n" % (old, moduleName, new))
if doPtr:
pyFile.write("%sPtr = wx.%s.%sPtr\n" % (old, moduleName, new))
#else:
# text = "%07d %d %10s %-35s %s\n" % (
# self.startLine, self.level, self.tagtype, self.name, self.decl)
# #rejects.write(text)
# print text,
#---------------------------------------------------------------------------
class ContentHandler(xml.sax.ContentHandler):
def __init__(self, modname, swigFile, pyFile):
xml.sax.ContentHandler.__init__(self)
self.modname = modname
self.swigFile = swigFile
self.pyFile = pyFile
self.elements = []
self.imports = 0
self.klass = None
self.sym_klass = None
def setDocumentLocator(self, locator):
self.locator = locator
def startElement(self, name, attrs):
if name in interestingTypes:
# start of a new element that we are interested in
ce = Element(name)
ce.startLine = self.locator.getLineNumber()
ce.level = len(self.elements)
if name == 'constructor':
ce.klass = self.elements[0].name
else:
ce.klass = self.klass
ce.sym_klass = self.sym_klass
self.elements.insert(0, ce)
elif len(self.elements) and name == 'attribute' and attrs['name'] in interestingAttrs:
attrName = attrs['name']
attrVal = attrs['value']
if attrName.startswith('feature_'):
attrName = attrName.replace('feature_', '')
ce = self.elements[0]
if getattr(ce, attrName) is None:
setattr(ce, attrName, attrVal)
if ce.tagtype == 'class' and attrName == 'name' and self.klass is None:
self.klass = attrVal
if ce.tagtype == 'class' and attrName == 'sym_name' and self.sym_klass is None:
self.sym_klass = attrVal
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'name':
## # save the elements name
## ce = self.elements[0]
## if ce.name is None:
## ce.name = attrs['value']
## ce.nameLine = self.locator.getLineNumber()
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'sym_name':
## # save the elements name
## ce = self.elements[0]
## if ce.sym_name is None:
## ce.sym_name = attrs['value']
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'decl':
## # save the elements decl
## ce = self.elements[0]
## ce.decl = attrs['value']
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'feature_immutable':
## # save the elements decl
## ce = self.elements[0]
## ce.immutable = int(attrs['value'])
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'module':
## # save the elements decl
## ce = self.elements[0]
## ce.module = attrs['value']
elif name == 'import':
self.imports += 1
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'storage':
## # save the elements decl
## ce = self.elements[0]
## ce.storage = attrs['value']
## elif len(self.elements) and name == 'attribute' and attrs['name'] == 'type':
## # save the elements decl
## ce = self.elements[0]
## ce.type = attrs['value']
def endElement(self, name):
if name in interestingTypes:
# end of an element that we are interested in
ce = self.elements.pop(0)
if self.imports == 0:
# only write for items that are in this file, not imported
ce.write(self.modname, self.swigFile, self.pyFile)
if name == 'import':
self.imports -= 1
if name == 'class':
self.klass = None
self.sym_klass = None
#---------------------------------------------------------------------------
if __name__ == "__main__":
main(sys.argv[1:])