The Tor Browser: accessible/src/xpcom/AccEventGen.py@b8a032363ba2 (annotated)

accessible/src/xpcom/AccEventGen.py@b8a032363ba2 (annotated)

accessible/src/xpcom/AccEventGen.py

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rwxr-xr-x

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 #!/usr/bin/env python
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 import sys, os, xpidl, makeutils
 def findIDL(includePath, interfaceFileName):
     for d in includePath:
         # Not os.path.join: we need a forward slash even on Windows because
         # this filename ends up in makedepend output.
         path = d + '/' + interfaceFileName
         if os.path.exists(path):
             return path
     raise BaseException("No IDL file found for interface %s "
                         "in include path %r"
                         % (interfaceFileName, includePath))
 def loadEventIDL(parser, includePath, eventname):
     eventidl = ("nsIAccessible%s.idl" % eventname)
     idlFile = findIDL(includePath, eventidl)
     if not idlFile in makeutils.dependencies:
         makeutils.dependencies.append(idlFile)
     idl = p.parse(open(idlFile).read(), idlFile)
     idl.resolve(includePath, p)
     return idl
 class Configuration:
     def __init__(self, filename):
         config = {}
         execfile(filename, config)
         self.simple_events = config.get('simple_events', [])
 def readConfigFile(filename):
     return Configuration(filename)
 def firstCap(str):
     return str[0].upper() + str[1:]
 def writeAttributeParams(a):
     return ("%s a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
 def print_header_file(fd, conf):
     fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n")
     fd.write("#ifndef _mozilla_a11y_generated_AccEvents_h_\n"
              "#define _mozilla_a11y_generated_AccEvents_h_\n\n")
     fd.write("#include \"nscore.h\"\n")
     fd.write("#include \"nsCOMPtr.h\"\n")
     fd.write("#include \"nsCycleCollectionParticipant.h\"\n")
     fd.write("#include \"nsString.h\"\n")
     for e in conf.simple_events:
         fd.write("#include \"nsIAccessible%s.h\"\n" % e)
     for e in conf.simple_events:
         idl = loadEventIDL(p, options.incdirs, e)
         for iface in filter(lambda p: p.kind == "interface", idl.productions):
             classname = ("xpcAcc%s" % e)
             baseinterfaces = interfaces(iface)
             fd.write("\nclass %s MOZ_FINAL : public %s\n" % (classname, iface.name))
             fd.write("{\n")
             fd.write("public:\n")
             attributes = allAttributes(iface)
             args = map(writeAttributeParams, attributes)
             fd.write("  %s(%s) :\n" % (classname, ", ".join(args)))
             initializers = []
             for a in attributes:
                 initializers.append("m%s(a%s)" % (firstCap(a.name), firstCap(a.name)))
             fd.write("  %s\n  {}\n" % ", ".join(initializers))
             fd.write("  ~%s() {}\n\n" % classname)
             fd.write("  NS_DECL_CYCLE_COLLECTING_ISUPPORTS\n")
             fd.write("  NS_DECL_CYCLE_COLLECTION_CLASS(%s)\n" % (classname))
             for iface in filter(lambda i: i.name != "nsISupports", baseinterfaces):
                 fd.write("  NS_DECL_%s\n" % iface.name.upper())
             fd.write("private:\n")
             for a in attributes:
                 fd.write("  %s\n" % attributeVariableTypeAndName(a))
             fd.write("};\n\n")
     fd.write("#endif\n")
 def interfaceAttributeTypes(idl):
     ifaces = filter(lambda p: p.kind == "interface", idl.productions)
     attributes = []
     for i in ifaces:
         ifaceAttributes = allAttributes(i)
         attributes.extend(ifaceAttributes)
     ifaceAttrs = filter(lambda a: a.realtype.nativeType("in").endswith("*"), attributes)
     return map(lambda a: a.realtype.nativeType("in").strip(" *"), ifaceAttrs)
 def print_cpp(idl, fd, conf, eventname):
     for p in idl.productions:
         if p.kind == 'interface':
             write_cpp(eventname, p, fd)
 def print_cpp_file(fd, conf):
     fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n\n")
     fd.write('#include "xpcAccEvents.h"\n')
     includes = []
     for e in conf.simple_events:
         if not e in includes:
             includes.append(("nsIAccessible%s" % e))
     types = []
     for e in conf.simple_events:
         idl = loadEventIDL(p, options.incdirs, e)
         types.extend(interfaceAttributeTypes(idl))
     for c in types:
         fd.write("#include \"%s.h\"\n" % c)
     fd.write("\n")
     for e in conf.simple_events:
         print_cpp(loadEventIDL(p, options.incdirs, e), fd, conf, e)
 def attributeVariableTypeAndName(a):
     if a.realtype.nativeType('in').endswith('*'):
         l = ["nsCOMPtr<%s> m%s;" % (a.realtype.nativeType('in').strip('* '),
                    firstCap(a.name))]
     elif a.realtype.nativeType('in').count("nsAString"):
         l = ["nsString m%s;" % firstCap(a.name)]
     elif a.realtype.nativeType('in').count("nsACString"):
         l = ["nsCString m%s;" % firstCap(a.name)]
     else:
         l = ["%sm%s;" % (a.realtype.nativeType('in'),
                        firstCap(a.name))]
     return ", ".join(l)
 def writeAttributeGetter(fd, classname, a):
     fd.write("NS_IMETHODIMP\n")
     fd.write("%s::Get%s(" % (classname, firstCap(a.name)))
     if a.realtype.nativeType('in').endswith('*'):
         fd.write("%s** a%s" % (a.realtype.nativeType('in').strip('* '), firstCap(a.name)))
     elif a.realtype.nativeType('in').count("nsAString"):
         fd.write("nsAString& a%s" % firstCap(a.name))
     elif a.realtype.nativeType('in').count("nsACString"):
         fd.write("nsACString& a%s" % firstCap(a.name))
     else:
         fd.write("%s*a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
     fd.write(")\n");
     fd.write("{\n");
     if a.realtype.nativeType('in').endswith('*'):
         fd.write("  NS_IF_ADDREF(*a%s = m%s);\n" % (firstCap(a.name), firstCap(a.name)))
     elif a.realtype.nativeType('in').count("nsAString"):
         fd.write("  a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
     elif a.realtype.nativeType('in').count("nsACString"):
         fd.write("  a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
     else:
         fd.write("  *a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
     fd.write("  return NS_OK;\n");
     fd.write("}\n\n");
 def interfaces(iface):
     interfaces = []
     while iface.base:
         interfaces.append(iface)
         iface = iface.idl.getName(iface.base, iface.location)
     interfaces.append(iface)
     interfaces.reverse()
     return interfaces
 def allAttributes(iface):
     attributes = []
     for i in interfaces(iface):
         attrs = filter(lambda m: isinstance(m, xpidl.Attribute), i.members)
         attributes.extend(attrs)
     return attributes
 def write_cpp(eventname, iface, fd):
     classname = "xpcAcc%s" % eventname
     attributes = allAttributes(iface)
     ccattributes = filter(lambda m: m.realtype.nativeType('in').endswith('*'), attributes)
     fd.write("NS_IMPL_CYCLE_COLLECTION(%s" % classname)
     for c in ccattributes:
         fd.write(", m%s" % firstCap(c.name))
     fd.write(")\n\n");
     fd.write("NS_IMPL_CYCLE_COLLECTING_ADDREF(%s)\n" % classname)
     fd.write("NS_IMPL_CYCLE_COLLECTING_RELEASE(%s)\n\n" % classname)
     fd.write("NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(%s)\n" % classname)
     for baseiface in interfaces(iface):
         fd.write("  NS_INTERFACE_MAP_ENTRY(%s)\n" % baseiface.name)
     fd.write("NS_INTERFACE_MAP_END\n\n")
     for a in attributes:
         writeAttributeGetter(fd, classname, a)
 def main():
     from optparse import OptionParser
     o = OptionParser(usage="usage: %prog [options] configfile")
     o.add_option('-I', action='append', dest='incdirs', default=['.'],
                  help="Directory to search for imported files")
     o.add_option('-o', "--stub-output",
                  type='string', dest='stub_output', default=None,
                  help="C++ source output file", metavar="FILE")
     o.add_option('--header-output', type='string', default=None,
                  help="Quick stub header output file", metavar="FILE")
     o.add_option('--makedepend-output', type='string', default=None,
                  help="gnumake dependencies output file", metavar="FILE")
     o.add_option('--cachedir', dest='cachedir', default=None,
                  help="Directory in which to cache lex/parse tables.")
     global options
     (options, filenames) = o.parse_args()
     if len(filenames) != 1:
         o.error("Exactly one config filename is needed.")
     filename = filenames[0]
     if options.cachedir is not None:
         if not os.path.isdir(options.cachedir):
             os.mkdir(options.cachedir)
         sys.path.append(options.cachedir)
     # Instantiate the parser.
     global p
     p = xpidl.IDLParser(outputdir=options.cachedir)
     conf = readConfigFile(filename)
     if options.stub_output is not None:
         makeutils.targets.append(options.stub_output)
         outfd = open(options.stub_output, 'w')
         print_cpp_file(outfd, conf)
         outfd.close()
         if options.makedepend_output is not None:
             makeutils.writeMakeDependOutput(options.makedepend_output)
     if options.header_output is not None:
         outfd = open(options.header_output, 'w')
         print_header_file(outfd, conf)
         outfd.close()
 if __name__ == '__main__':
     main()

The Tor Browser / annotate

accessible/src/xpcom/AccEventGen.py@b8a032363ba2 (annotated)

accessible/src/xpcom/AccEventGen.py