gecko-dev/config/make-stl-wrappers.py
Nika Layzell 568787b95f Bug 1448426 - Wrap windows.h to avoid problematic define statements, r=froydnj,glandium
By default, windows.h exposes a large number of problematic define statements
which are UpperCamelCase, such as a define from `CreateWindow` to
`CreateWindow{A,W}`.

As many of these names are generic (e.g. CreateFile, CreateWindow), they can
mess up Gecko code that may legitimately have its own methods with the same
names.

The header also defines some traditional SCREAMING_SNAKE_CASE defines which
can mess up our code by conflicting with local values.

This patch adds a simple code generator which generates wrappers for these
defines, and uses them to wrap the windows.h wrapper using the `stl_wrappers`
mechanism, allowing us to use windows.h in more places.

Differential Revision: https://phabricator.services.mozilla.com/D10932
2018-11-28 12:56:20 -05:00

23 lines
879 B
Python

# 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))