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- #!/usr/bin/env python3
- # Copyright 2018 the V8 project authors. All rights reserved.
- # Use of this source code is governed by a BSD-style license that can be
- # found in the LICENSE file.
- # vim:fenc=utf-8:shiftwidth=2:tabstop=2:softtabstop=2:extandtab
- """
- Generate object-macros-undef.h from object-macros.h.
- """
- import os.path
- import re
- import sys
- INPUT = 'src/objects/object-macros.h'
- OUTPUT = 'src/objects/object-macros-undef.h'
- HEADER = """// Copyright 2016 the V8 project authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- // Generate this file using the {} script.
- // PRESUBMIT_INTENTIONALLY_MISSING_INCLUDE_GUARD
- """.format(os.path.basename(__file__))
- def main():
- if not os.path.isfile(INPUT):
- sys.exit("Input file {} does not exist; run this script in a v8 checkout."
- .format(INPUT))
- if not os.path.isfile(OUTPUT):
- sys.exit("Output file {} does not exist; run this script in a v8 checkout."
- .format(OUTPUT))
- regexp = re.compile('^#define (\w+)')
- seen = set()
- with open(INPUT, 'r') as infile, open(OUTPUT, 'w') as outfile:
- outfile.write(HEADER)
- for line in infile:
- match = regexp.match(line)
- if match and match.group(1) not in seen:
- seen.add(match.group(1))
- outfile.write('#undef {}\n'.format(match.group(1)))
- if __name__ == "__main__":
- main()
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