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