config/make-stl-wrappers.py
author Nicholas Nethercote <nnethercote@mozilla.com>
Wed, 27 Sep 2017 20:19:33 +1000
changeset 384370 15306340c1beda0eea937fa85b7e11a3d1110d9d
parent 298410 68da139d0866977c0ada86319fa94388f2255446
child 391024 828d43ec1b16edaac69c42f15561f26e209051f1
permissions -rw-r--r--
Bug 1403506 - Remove nsTFixedString<T>. r=erahm. (patch is actually r=erahm,mystor) nsTFixedString<T> is only used as a base class for nsTAutoStringN<T, N>, so this patch merges the former into the latter, cutting some code and simplifying the string class hierarchy. Because the "Fixed" name is now gone, the patch also renames StringDataFlags::FIXED as INLINE and ClassDataFlags::FIXED as INLINE. The patch also removes nsFixed[C]String and ns_auto_[c]string! from Rust code because nsAutoString can't be implemented directly in Rust due to its move semantics. There were only two uses of ns_auto_string! outside of tests so this seems like a minor loss. MozReview-Commit-ID: 8ntximghiut

# 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 print_function
import os, re, string, sys
from mozbuild.util import FileAvoidWrite

def find_in_path(file, searchpath):
    for dir in searchpath.split(os.pathsep):
        f = os.path.join(dir, file)
        if os.path.exists(f):
            return f
    return ''

def header_path(header, compiler):
    if compiler == 'gcc':
        # we use include_next on gcc
        return header
    elif compiler == 'msvc':
        return find_in_path(header, os.environ.get('INCLUDE', ''))
    else:
        # hope someone notices this ...
        raise NotImplementedError(compiler)

def is_comment(line):
    return re.match(r'\s*#.*', line)

def main(outdir, compiler, template_file, header_list_file):
    if not os.path.isdir(outdir):
        os.mkdir(outdir)

    template = open(template_file, 'r').read()

    for header in open(header_list_file, 'r'):
        header = header.rstrip()
        if 0 == len(header) or is_comment(header):
            continue

        path = header_path(header, compiler)
        with FileAvoidWrite(os.path.join(outdir, header)) as f:
            f.write(string.Template(template).substitute(HEADER=header,
                                                         HEADER_PATH=path))


if __name__ == '__main__':
    if 5 != len(sys.argv):
        print("""Usage:
  python {0} OUT_DIR ('msvc'|'gcc') TEMPLATE_FILE HEADER_LIST_FILE
""".format(sys.argv[0]), file=sys.stderr)
        sys.exit(1)

    main(*sys.argv[1:])