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aab4d7dc38
While working on growing the fastermake backend to do compilation, I ran into the problem that there's an implicit dependency from AccEventGen.py on the fact that IDL files are installed in $DIST/idl. While we may need some way to express such things in general, it turns out that for this specific use case, we don't actually /need/ IDLs in $DIST/idl, and a couple paths are enough to get things to work.
227 lines
7.9 KiB
Python
Executable File
227 lines
7.9 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import sys
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import os
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import buildconfig
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import mozpack.path as mozpath
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# The xpidl parser is not incorporated in the in-tree virtualenv.
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xpidl_dir = mozpath.join(buildconfig.topsrcdir, 'xpcom', 'idl-parser',
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'xpidl')
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sys.path.append(xpidl_dir)
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import xpidl
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# Instantiate the parser.
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p = xpidl.IDLParser()
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def findIDL(includePath, interfaceFileName):
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for d in includePath:
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path = mozpath.join(d, interfaceFileName)
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if os.path.exists(path):
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return path
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raise BaseException("No IDL file found for interface %s "
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"in include path %r"
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% (interfaceFileName, includePath))
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def loadEventIDL(parser, includePath, eventname):
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eventidl = ("nsIAccessible%s.idl" % eventname)
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idlFile = findIDL(includePath, eventidl)
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idl = p.parse(open(idlFile).read(), idlFile)
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idl.resolve(includePath, p)
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return idl, idlFile
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class Configuration:
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def __init__(self, filename):
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config = {}
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execfile(filename, config)
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self.simple_events = config.get('simple_events', [])
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def firstCap(str):
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return str[0].upper() + str[1:]
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def writeAttributeParams(a):
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return ("%s a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
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def print_header_file(fd, conf, incdirs):
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idl_paths = set()
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fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n")
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fd.write("#ifndef _mozilla_a11y_generated_AccEvents_h_\n"
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"#define _mozilla_a11y_generated_AccEvents_h_\n\n")
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fd.write("#include \"nscore.h\"\n")
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fd.write("#include \"nsCOMPtr.h\"\n")
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fd.write("#include \"nsCycleCollectionParticipant.h\"\n")
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fd.write("#include \"nsString.h\"\n")
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for e in conf.simple_events:
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fd.write("#include \"nsIAccessible%s.h\"\n" % e)
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for e in conf.simple_events:
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idl, idl_path = loadEventIDL(p, incdirs, e)
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idl_paths.add(idl_path)
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for iface in filter(lambda p: p.kind == "interface", idl.productions):
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classname = ("xpcAcc%s" % e)
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baseinterfaces = interfaces(iface)
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fd.write("\nclass %s final : public %s\n" % (classname, iface.name))
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fd.write("{\n")
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fd.write("public:\n")
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attributes = allAttributes(iface)
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args = map(writeAttributeParams, attributes)
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fd.write(" %s(%s) :\n" % (classname, ", ".join(args)))
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initializers = []
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for a in attributes:
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initializers.append("m%s(a%s)" % (firstCap(a.name), firstCap(a.name)))
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fd.write(" %s\n {}\n\n" % ", ".join(initializers))
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fd.write(" NS_DECL_CYCLE_COLLECTING_ISUPPORTS\n")
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fd.write(" NS_DECL_CYCLE_COLLECTION_CLASS(%s)\n" % (classname))
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for iface in filter(lambda i: i.name != "nsISupports", baseinterfaces):
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fd.write(" NS_DECL_%s\n" % iface.name.upper())
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fd.write("\nprivate:\n")
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fd.write(" ~%s() {}\n\n" % classname)
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for a in attributes:
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fd.write(" %s\n" % attributeVariableTypeAndName(a))
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fd.write("};\n\n")
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fd.write("#endif\n")
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return idl_paths
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def interfaceAttributeTypes(idl):
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ifaces = filter(lambda p: p.kind == "interface", idl.productions)
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attributes = []
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for i in ifaces:
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ifaceAttributes = allAttributes(i)
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attributes.extend(ifaceAttributes)
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ifaceAttrs = filter(lambda a: a.realtype.nativeType("in").endswith("*"), attributes)
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return map(lambda a: a.realtype.nativeType("in").strip(" *"), ifaceAttrs)
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def print_cpp(idl, fd, conf, eventname):
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for p in idl.productions:
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if p.kind == 'interface':
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write_cpp(eventname, p, fd)
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def print_cpp_file(fd, conf, incdirs):
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idl_paths = set()
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fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n\n")
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fd.write('#include "xpcAccEvents.h"\n')
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includes = []
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for e in conf.simple_events:
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if not e in includes:
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includes.append(("nsIAccessible%s" % e))
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types = []
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for e in conf.simple_events:
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idl, idl_path = loadEventIDL(p, incdirs, e)
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idl_paths.add(idl_path)
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types.extend(interfaceAttributeTypes(idl))
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for c in types:
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fd.write("#include \"%s.h\"\n" % c)
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fd.write("\n")
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for e in conf.simple_events:
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idl, idl_path = loadEventIDL(p, incdirs, e)
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idl_paths.add(idl_path)
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print_cpp(idl, fd, conf, e)
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return idl_paths
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def attributeVariableTypeAndName(a):
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if a.realtype.nativeType('in').endswith('*'):
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l = ["nsCOMPtr<%s> m%s;" % (a.realtype.nativeType('in').strip('* '),
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firstCap(a.name))]
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elif a.realtype.nativeType('in').count("nsAString"):
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l = ["nsString m%s;" % firstCap(a.name)]
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elif a.realtype.nativeType('in').count("nsACString"):
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l = ["nsCString m%s;" % firstCap(a.name)]
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else:
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l = ["%sm%s;" % (a.realtype.nativeType('in'),
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firstCap(a.name))]
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return ", ".join(l)
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def writeAttributeGetter(fd, classname, a):
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fd.write("NS_IMETHODIMP\n")
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fd.write("%s::Get%s(" % (classname, firstCap(a.name)))
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if a.realtype.nativeType('in').endswith('*'):
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fd.write("%s** a%s" % (a.realtype.nativeType('in').strip('* '), firstCap(a.name)))
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elif a.realtype.nativeType('in').count("nsAString"):
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fd.write("nsAString& a%s" % firstCap(a.name))
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elif a.realtype.nativeType('in').count("nsACString"):
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fd.write("nsACString& a%s" % firstCap(a.name))
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else:
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fd.write("%s*a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
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fd.write(")\n");
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fd.write("{\n");
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if a.realtype.nativeType('in').endswith('*'):
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fd.write(" NS_IF_ADDREF(*a%s = m%s);\n" % (firstCap(a.name), firstCap(a.name)))
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elif a.realtype.nativeType('in').count("nsAString"):
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fd.write(" a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
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elif a.realtype.nativeType('in').count("nsACString"):
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fd.write(" a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
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else:
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fd.write(" *a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
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fd.write(" return NS_OK;\n");
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fd.write("}\n\n");
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def interfaces(iface):
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interfaces = []
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while iface.base:
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interfaces.append(iface)
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iface = iface.idl.getName(iface.base, iface.location)
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interfaces.append(iface)
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interfaces.reverse()
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return interfaces
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def allAttributes(iface):
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attributes = []
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for i in interfaces(iface):
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attrs = filter(lambda m: isinstance(m, xpidl.Attribute), i.members)
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attributes.extend(attrs)
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return attributes
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def write_cpp(eventname, iface, fd):
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classname = "xpcAcc%s" % eventname
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attributes = allAttributes(iface)
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ccattributes = filter(lambda m: m.realtype.nativeType('in').endswith('*'), attributes)
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fd.write("NS_IMPL_CYCLE_COLLECTION(%s" % classname)
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for c in ccattributes:
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fd.write(", m%s" % firstCap(c.name))
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fd.write(")\n\n");
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fd.write("NS_IMPL_CYCLE_COLLECTING_ADDREF(%s)\n" % classname)
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fd.write("NS_IMPL_CYCLE_COLLECTING_RELEASE(%s)\n\n" % classname)
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fd.write("NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(%s)\n" % classname)
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for baseiface in interfaces(iface):
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fd.write(" NS_INTERFACE_MAP_ENTRY(%s)\n" % baseiface.name)
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fd.write("NS_INTERFACE_MAP_END\n\n")
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for a in attributes:
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writeAttributeGetter(fd, classname, a)
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def get_conf(conf_file):
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conf = Configuration(conf_file)
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inc_dir = [
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mozpath.join(buildconfig.topsrcdir, 'accessible', 'interfaces'),
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mozpath.join(buildconfig.topsrcdir, 'xpcom', 'base'),
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]
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return conf, inc_dir
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def gen_header_file(fd, conf_file):
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conf, inc_dir = get_conf(conf_file)
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return print_header_file(fd, conf, inc_dir)
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def gen_cpp_file(fd, conf_file):
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conf, inc_dir = get_conf(conf_file)
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return print_cpp_file(fd, conf, inc_dir)
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