config/make-stl-wrappers.py
author Iain Ireland <iireland@mozilla.com>
Fri, 11 Jan 2019 18:05:36 +0000
changeset 453523 025feea5945bffc625e9cca2e23be51ee8670315
parent 448612 5e6dae0c1e5a4939ccd406f14607f7fafffd45a7
permissions -rw-r--r--
Bug 1480390: Move ForOfIterClose logic inside TryNoteIter r=tcampbell This patch was intended to be a pure refactoring of existing code with no side-effects, moving the logic for handling for-of/for-of-iterclose trynotes inside TryNoteIter to avoid duplicating logic in all users of TryNoteIter. However, it turns out that there was a subtle preexisting bug in TryNoteIter that is fixed by the refactoring. Specifically, the logic to skip from a for-of-iterclose to its enclosing for-of must run before the logic to skip trynotes based on stack depth. Otherwise, the stack depth code may filter out the enclosing for-of (see the attached test case for an example) and we will skip too many try-notes. Differential Revision: https://phabricator.services.mozilla.com/D14783

# 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
import string
from mozbuild.util import FileAvoidWrite
from system_header_util import header_path


# The 'unused' arg is the output file from the file_generate action. We actually
# generate all the files in header_list


def gen_wrappers(unused, outdir, compiler, template_file, *header_list):
    template = open(template_file, 'r').read()

    for header in header_list:
        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))