deps/v8/tools/external-reference-check.py

   1 #!/usr/bin/env python
   2 # Copyright 2014 the V8 project authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import re
   7 import os
   8 import sys
   9
  10 DECLARE_FILE = "src/assembler.h"
  11 REGISTER_FILE = "src/snapshot/serialize.cc"
  12 DECLARE_RE = re.compile("\s*static ExternalReference ([^(]+)\(")
  13 REGISTER_RE = re.compile("\s*Add\(ExternalReference::([^(]+)\(")
  14
  15 WORKSPACE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
  16
  17 # Ignore those.
  18 BLACKLISTED = [
  19   "page_flags",
  20   "math_exp_constants",
  21   "math_exp_log_table",
  22   "ForDeoptEntry",
  23 ]
  24
  25 def Find(filename, re):
  26   references = []
  27   with open(filename, "r") as f:
  28     for line in f:
  29       match = re.match(line)
  30       if match:
  31         references.append(match.group(1))
  32   return references
  33
  34 def Main():
  35   declarations = Find(DECLARE_FILE, DECLARE_RE)
  36   registrations = Find(REGISTER_FILE, REGISTER_RE)
  37   difference = list(set(declarations) - set(registrations) - set(BLACKLISTED))
  38   for reference in difference:
  39     print("Declared but not registered: ExternalReference::%s" % reference)
  40   return len(difference) > 0
  41
  42 if __name__ == "__main__":
  43   sys.exit(Main())