ref: 1e8eb61a3715b12d8bc1cfd866f5bb180f2941f2
dir: /sys/src/cmd/python/Doc/tools/anno-api.py/
#! /usr/bin/env python
"""Add reference count annotations to the Python/C API Reference."""
__version__ = '$Revision: 17623 $'
import getopt
import os
import sys
import refcounts
PREFIX_1 = r"\begin{cfuncdesc}{PyObject*}{"
PREFIX_2 = r"\begin{cfuncdesc}{PyVarObject*}{"
def main():
rcfile = os.path.join(os.path.dirname(refcounts.__file__), os.pardir,
"api", "refcounts.dat")
outfile = "-"
opts, args = getopt.getopt(sys.argv[1:], "o:r:", ["output=", "refcounts="])
for opt, arg in opts:
if opt in ("-o", "--output"):
outfile = arg
elif opt in ("-r", "--refcounts"):
rcfile = arg
rcdict = refcounts.load(rcfile)
if outfile == "-":
output = sys.stdout
else:
output = open(outfile, "w")
if not args:
args = ["-"]
for infile in args:
if infile == "-":
input = sys.stdin
else:
input = open(infile)
while 1:
line = input.readline()
if not line:
break
prefix = None
if line.startswith(PREFIX_1):
prefix = PREFIX_1
elif line.startswith(PREFIX_2):
prefix = PREFIX_2
if prefix:
s = line[len(prefix):].split('}', 1)[0]
try:
info = rcdict[s]
except KeyError:
sys.stderr.write("No refcount data for %s\n" % s)
else:
if info.result_type in ("PyObject*", "PyVarObject*"):
if info.result_refs is None:
rc = "Always \NULL{}"
else:
rc = info.result_refs and "New" or "Borrowed"
rc = rc + " reference"
line = (r"\begin{cfuncdesc}[%s]{%s}{"
% (rc, info.result_type)) \
+ line[len(prefix):]
output.write(line)
if infile != "-":
input.close()
if outfile != "-":
output.close()
if __name__ == "__main__":
main()