mirror of
https://gitlab.gnome.org/jwestman/blueprint-compiler.git
synced 2025-05-04 15:59:08 -04:00
06f54c8ff8
For normal compilation, use .typelib files rather than .gir XML files. This is much faster. Rather than using libgirepository, which would try to actually load the libraries, we use a custom parser. The language server will still read XML because it needs to access documentation, which is not in the typelib, but that's generally fine because it's a long lived process and only has to do that once.
85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
# xml_reader.py
|
|
#
|
|
# Copyright 2021 James Westman <james@jwestman.net>
|
|
#
|
|
# This file is free software; you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as
|
|
# published by the Free Software Foundation; either version 3 of the
|
|
# License, or (at your option) any later version.
|
|
#
|
|
# This file is distributed in the hope that it will be useful, but
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# SPDX-License-Identifier: LGPL-3.0-or-later
|
|
|
|
|
|
from collections import defaultdict
|
|
from functools import cached_property
|
|
import typing as T
|
|
from xml import sax
|
|
|
|
|
|
# To speed up parsing, we ignore all tags except these
|
|
PARSE_GIR = set([
|
|
"repository", "namespace", "class", "interface", "property", "glib:signal",
|
|
"include", "implements", "type", "parameter", "parameters", "enumeration",
|
|
"member", "bitfield",
|
|
])
|
|
|
|
|
|
class Element:
|
|
def __init__(self, tag, attrs: T.Dict[str, str]):
|
|
self.tag = tag
|
|
self.attrs = attrs
|
|
self.children: T.List["Element"] = []
|
|
self.cdata_chunks: T.List[str] = []
|
|
|
|
@cached_property
|
|
def cdata(self):
|
|
return ''.join(self.cdata_chunks)
|
|
|
|
def get_elements(self, name) -> T.List["Element"]:
|
|
return [
|
|
child
|
|
for child in self.children
|
|
if child.tag == name
|
|
]
|
|
|
|
def __getitem__(self, key):
|
|
return self.attrs.get(key)
|
|
|
|
|
|
class Handler(sax.handler.ContentHandler):
|
|
def __init__(self):
|
|
self.root = None
|
|
self.stack = []
|
|
|
|
def startElement(self, name, attrs):
|
|
element = Element(name, attrs.copy())
|
|
|
|
if len(self.stack):
|
|
last = self.stack[-1]
|
|
last.children.append(element)
|
|
else:
|
|
self.root = element
|
|
|
|
self.stack.append(element)
|
|
|
|
def endElement(self, name):
|
|
self.stack.pop()
|
|
|
|
def characters(self, content):
|
|
self.stack[-1].cdata_chunks.append(content)
|
|
|
|
|
|
def parse(filename):
|
|
parser = sax.make_parser()
|
|
handler = Handler()
|
|
parser.setContentHandler(handler)
|
|
parser.parse(filename)
|
|
return handler.root
|