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