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Diffstat (limited to 'xpcom/idl-parser/xpidl/typelib.py')
| -rw-r--r-- | xpcom/idl-parser/xpidl/typelib.py | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/xpcom/idl-parser/xpidl/typelib.py b/xpcom/idl-parser/xpidl/typelib.py new file mode 100644 index 000000000..911e3873d --- /dev/null +++ b/xpcom/idl-parser/xpidl/typelib.py @@ -0,0 +1,307 @@ +#!/usr/bin/env python +# typelib.py - Generate XPCOM typelib files from IDL. +# +# 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/. + +"""Generate an XPIDL typelib for the IDL files specified on the command line""" + +import os +import sys +import xpidl +import xpt + +# A map of xpidl.py types to xpt.py types +TypeMap = { + # nsresult is not strictly an xpidl.py type, but it's useful here + 'nsresult': xpt.Type.Tags.uint32, + # builtins + 'boolean': xpt.Type.Tags.boolean, + 'void': xpt.Type.Tags.void, + 'int16_t': xpt.Type.Tags.int16, + 'int32_t': xpt.Type.Tags.int32, + 'int64_t': xpt.Type.Tags.int64, + 'uint8_t': xpt.Type.Tags.uint8, + 'uint16_t': xpt.Type.Tags.uint16, + 'uint32_t': xpt.Type.Tags.uint32, + 'uint64_t': xpt.Type.Tags.uint64, + 'octet': xpt.Type.Tags.uint8, + 'short': xpt.Type.Tags.int16, + 'long': xpt.Type.Tags.int32, + 'long long': xpt.Type.Tags.int64, + 'unsigned short': xpt.Type.Tags.uint16, + 'unsigned long': xpt.Type.Tags.uint32, + 'unsigned long long': xpt.Type.Tags.uint64, + 'float': xpt.Type.Tags.float, + 'double': xpt.Type.Tags.double, + 'char': xpt.Type.Tags.char, + 'string': xpt.Type.Tags.char_ptr, + 'wchar': xpt.Type.Tags.wchar_t, + 'wstring': xpt.Type.Tags.wchar_t_ptr, + # special types + 'nsid': xpt.Type.Tags.nsIID, + 'domstring': xpt.Type.Tags.DOMString, + 'astring': xpt.Type.Tags.AString, + 'utf8string': xpt.Type.Tags.UTF8String, + 'cstring': xpt.Type.Tags.CString, + 'jsval': xpt.Type.Tags.jsval +} + + +# XXXkhuey dipper types should go away (bug 677784) +def isDipperType(type): + return type == xpt.Type.Tags.DOMString or type == xpt.Type.Tags.AString or type == xpt.Type.Tags.CString or type == xpt.Type.Tags.UTF8String + + +def build_interface(iface, ifaces): + def get_type(type, calltype, iid_is=None, size_is=None): + """ Return the appropriate xpt.Type object for this param """ + + while isinstance(type, xpidl.Typedef): + type = type.realtype + + if isinstance(type, xpidl.Builtin): + if type.name == 'string' and size_is is not None: + return xpt.StringWithSizeType(size_is, size_is) + elif type.name == 'wstring' and size_is is not None: + return xpt.WideStringWithSizeType(size_is, size_is) + else: + tag = TypeMap[type.name] + isPtr = (tag == xpt.Type.Tags.char_ptr or tag == xpt.Type.Tags.wchar_t_ptr) + return xpt.SimpleType(tag, + pointer=isPtr, + reference=False) + + if isinstance(type, xpidl.Array): + # NB: For an Array<T> we pass down the iid_is to get the type of T. + # This allows Arrays of InterfaceIs types to work. + return xpt.ArrayType(get_type(type.type, calltype, iid_is), size_is, + #XXXkhuey length_is duplicates size_is (bug 677788), + size_is) + + if isinstance(type, xpidl.Interface) or isinstance(type, xpidl.Forward): + xptiface = None + for i in ifaces: + if i.name == type.name: + xptiface = i + + if not xptiface: + xptiface = xpt.Interface(name=type.name) + ifaces.append(xptiface) + + return xpt.InterfaceType(xptiface) + + if isinstance(type, xpidl.Native): + if type.specialtype: + # XXXkhuey jsval is marked differently in the typelib and in the headers :-( + isPtr = (type.isPtr(calltype) or type.isRef(calltype)) and not type.specialtype == 'jsval' + isRef = type.isRef(calltype) and not type.specialtype == 'jsval' + return xpt.SimpleType(TypeMap[type.specialtype], + pointer=isPtr, + reference=isRef) + elif iid_is is not None: + return xpt.InterfaceIsType(iid_is) + else: + # void ptr + return xpt.SimpleType(TypeMap['void'], + pointer=True, + reference=False) + + raise Exception("Unknown type!") + + def get_nsresult(): + return xpt.SimpleType(TypeMap['nsresult']) + + def build_nsresult_param(): + return xpt.Param(get_nsresult()) + + def get_result_type(m): + if not m.notxpcom: + return get_nsresult() + + return get_type(m.realtype, '') + + def build_result_param(m): + return xpt.Param(get_result_type(m)) + + def build_retval_param(m): + type = get_type(m.realtype, 'out') + if isDipperType(type.tag): + # NB: The retval bit needs to be set here, contrary to what the + # xpt spec says. + return xpt.Param(type, in_=True, retval=True, dipper=True) + return xpt.Param(type, in_=False, out=True, retval=True) + + def build_attr_param(a, getter=False, setter=False): + if not (getter or setter): + raise Exception("Attribute param must be for a getter or a setter!") + + type = get_type(a.realtype, getter and 'out' or 'in') + if setter: + return xpt.Param(type) + else: + if isDipperType(type.tag): + # NB: The retval bit needs to be set here, contrary to what the + # xpt spec says. + return xpt.Param(type, in_=True, retval=True, dipper=True) + return xpt.Param(type, in_=False, out=True, retval=True) + + if iface.namemap is None: + raise Exception("Interface was not resolved.") + + consts = [] + methods = [] + + def build_const(c): + consts.append(xpt.Constant(c.name, get_type(c.basetype, ''), c.getValue())) + + def build_method(m): + params = [] + + def build_param(p): + def findattr(p, attr): + if hasattr(p, attr) and getattr(p, attr): + for i, param in enumerate(m.params): + if param.name == getattr(p, attr): + return i + return None + + iid_is = findattr(p, 'iid_is') + size_is = findattr(p, 'size_is') + + in_ = p.paramtype.count("in") + out = p.paramtype.count("out") + dipper = False + type = get_type(p.realtype, p.paramtype, iid_is=iid_is, size_is=size_is) + if out and isDipperType(type.tag): + out = False + dipper = True + + return xpt.Param(type, in_, out, p.retval, p.shared, dipper, p.optional) + + for p in m.params: + params.append(build_param(p)) + + if not m.notxpcom and m.realtype.name != 'void': + params.append(build_retval_param(m)) + + methods.append(xpt.Method(m.name, build_result_param(m), params, + getter=False, setter=False, notxpcom=m.notxpcom, + constructor=False, hidden=m.noscript, + optargc=m.optional_argc, + implicit_jscontext=m.implicit_jscontext)) + + def build_attr(a): + # Write the getter + methods.append(xpt.Method(a.name, build_nsresult_param(), + [build_attr_param(a, getter=True)], + getter=True, setter=False, + constructor=False, hidden=a.noscript, + optargc=False, + implicit_jscontext=a.implicit_jscontext)) + + # And maybe the setter + if not a.readonly: + methods.append(xpt.Method(a.name, build_nsresult_param(), + [build_attr_param(a, setter=True)], + getter=False, setter=True, + constructor=False, hidden=a.noscript, + optargc=False, + implicit_jscontext=a.implicit_jscontext)) + + for member in iface.members: + if isinstance(member, xpidl.ConstMember): + build_const(member) + elif isinstance(member, xpidl.Attribute): + build_attr(member) + elif isinstance(member, xpidl.Method): + build_method(member) + elif isinstance(member, xpidl.CDATA): + pass + else: + raise Exception("Unexpected interface member: %s" % member) + + parent = None + if iface.base: + for i in ifaces: + if i.name == iface.base: + parent = i + if not parent: + parent = xpt.Interface(name=iface.base) + ifaces.append(parent) + + return xpt.Interface(iface.name, iface.attributes.uuid, methods=methods, + constants=consts, resolved=True, parent=parent, + scriptable=iface.attributes.scriptable, + function=iface.attributes.function, + builtinclass=iface.attributes.builtinclass, + main_process_scriptable_only=iface.attributes.main_process_scriptable_only) + + +def write_typelib(idl, fd, filename): + """ Generate the typelib. """ + + # We only care about interfaces that are scriptable. + ifaces = [] + for p in idl.productions: + if p.kind == 'interface' and p.attributes.scriptable: + ifaces.append(build_interface(p, ifaces)) + + typelib = xpt.Typelib(interfaces=ifaces) + typelib.writefd(fd) + +if __name__ == '__main__': + from optparse import OptionParser + o = OptionParser() + o.add_option('-I', action='append', dest='incdirs', default=['.'], + help="Directory to search for imported files") + o.add_option('--cachedir', dest='cachedir', default=None, + help="Directory in which to cache lex/parse tables.") + o.add_option('-o', dest='outfile', default=None, + help="Output file") + o.add_option('-d', dest='depfile', default=None, + help="Generate a make dependency file") + o.add_option('--regen', action='store_true', dest='regen', default=False, + help="Regenerate IDL Parser cache") + options, args = o.parse_args() + file = args[0] if args else None + + if options.cachedir is not None: + if not os.path.isdir(options.cachedir): + os.mkdir(options.cachedir) + sys.path.append(options.cachedir) + + if options.regen: + if options.cachedir is None: + print >>sys.stderr, "--regen requires --cachedir" + sys.exit(1) + + p = xpidl.IDLParser(outputdir=options.cachedir, regen=True) + sys.exit(0) + + if options.depfile is not None and options.outfile is None: + print >>sys.stderr, "-d requires -o" + sys.exit(1) + + if options.outfile is not None: + outfd = open(options.outfile, 'wb') + closeoutfd = True + else: + raise "typelib generation requires an output file" + + p = xpidl.IDLParser(outputdir=options.cachedir) + idl = p.parse(open(file).read(), filename=file) + idl.resolve(options.incdirs, p) + write_typelib(idl, outfd, file) + + if closeoutfd: + outfd.close() + + if options.depfile is not None: + depfd = open(options.depfile, 'w') + deps = [dep.replace('\\', '/') for dep in idl.deps] + + print >>depfd, "%s: %s" % (options.outfile, " ".join(deps)) + for dep in deps: + print >>depfd, "%s:" % dep |