author violet <violet.bugreport@gmail.com>
Thu, 16 May 2019 00:54:46 +0000
changeset 532851 6730776560c028a402e7112569e6ca8bf6cd742b
parent 512391 8dcbc414dda673564951f3a28099643f3a8d1ed6
permissions -rw-r--r--
Bug 1383650 - Optimize attribute mapping by not parsing same thing twice r=longsonr Geometry properties are the most used SVG attributes. When authors specify them as attributes, we have to parse them in SVG side. So we don't want to parse them in CSS side again, otherwise the introduced performance loss is relatively high. With this optimization, this feature implementation doesn't slow down overall performace even if there are thousands of geometry elements. Differential Revision: https://phabricator.services.mozilla.com/D30778

# 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/.

from __future__ import absolute_import, print_function
import json
import os
import shlex
import subprocess
import sys

old_bytecode = sys.dont_write_bytecode
sys.dont_write_bytecode = True

path = os.path.abspath(os.path.join(os.path.dirname(__file__), 'mach'))

# If mach is not here, we're on the objdir go to the srcdir.
if not os.path.exists(path):
    with open(os.path.join(os.path.dirname(__file__), 'mozinfo.json')) as info:
        config = json.loads(info.read())
    path = os.path.join(config['topsrcdir'], 'mach')

sys.dont_write_bytecode = old_bytecode

def _is_likely_cpp_header(filename):
    if not filename.endswith('.h'):
        return False

    if filename.endswith('Inlines.h') or filename.endswith('-inl.h'):
        return True

    cpp_file = filename[:-1] + 'cpp'
    return os.path.exists(cpp_file)

def FlagsForFile(filename):
    output = subprocess.check_output([path, 'compileflags', filename])
    output = output.decode('utf-8')

    flag_list = shlex.split(output)

    # This flag is added by Fennec for android build and causes ycmd to fail to parse the file.
    # Removing this flag is a workaround until ycmd starts to handle this flag properly.
    # https://github.com/Valloric/YouCompleteMe/issues/1490
    final_flags = [x for x in flag_list if not x.startswith('-march=armv')]

    if _is_likely_cpp_header(filename):
        final_flags += ["-x", "c++"]

    return {
        'flags': final_flags,
        'do_cache': True

if __name__ == '__main__':