ref: 1787584ad839002584e0752e4df41b6f3b70064b
dir: /sys/src/cmd/python/Doc/tools/refcounts.py/
"""Support functions for loading the reference count data file."""
__version__ = '$Revision: 35267 $'
import os
import sys
# Determine the expected location of the reference count file:
try:
p = os.path.dirname(__file__)
except NameError:
p = os.path.dirname(sys.argv[0])
p = os.path.normpath(os.path.join(os.getcwd(), p, os.pardir,
"api", "refcounts.dat"))
DEFAULT_PATH = p
del p
def load(path=DEFAULT_PATH):
return loadfile(open(path))
def loadfile(fp):
d = {}
while 1:
line = fp.readline()
if not line:
break
line = line.strip()
if line[:1] in ("", "#"):
# blank lines and comments
continue
parts = line.split(":", 4)
if len(parts) != 5:
raise ValueError("Not enough fields in %r" % line)
function, type, arg, refcount, comment = parts
if refcount == "null":
refcount = None
elif refcount:
refcount = int(refcount)
else:
refcount = None
#
# Get the entry, creating it if needed:
#
try:
entry = d[function]
except KeyError:
entry = d[function] = Entry(function)
#
# Update the entry with the new parameter or the result information.
#
if arg:
entry.args.append((arg, type, refcount))
else:
entry.result_type = type
entry.result_refs = refcount
return d
class Entry:
def __init__(self, name):
self.name = name
self.args = []
self.result_type = ''
self.result_refs = None
def dump(d):
"""Dump the data in the 'canonical' format, with functions in
sorted order."""
items = d.items()
items.sort()
first = 1
for k, entry in items:
if first:
first = 0
else:
print
s = entry.name + ":%s:%s:%s:"
if entry.result_refs is None:
r = ""
else:
r = entry.result_refs
print s % (entry.result_type, "", r)
for t, n, r in entry.args:
if r is None:
r = ""
print s % (t, n, r)
def main():
d = load()
dump(d)
if __name__ == "__main__":
main()