Mercurial > cpython-lru_cache-weakref

annotate Tools/compiler/stacktest.py @ 58765:2ba7677bfa95 legacy-trunk

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testCopysign was defined twice in test_math; combine the definitions
author Mark Dickinson <dickinsm@gmail.com>
date Sat, 06 Feb 2010 23:11:25 +0000
parents 7cbd2887f60f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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20496
7cbd2887f60f Test utility to look for bad stacksize calculations.
Jeremy Hylton <jeremy@alum.mit.edu>
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1 import compiler
7cbd2887f60f Test utility to look for bad stacksize calculations.
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2 import dis
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3 import types
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4
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5 def extract_code_objects(co):
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6 l = [co]
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7 for const in co.co_consts:
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8 if type(const) == types.CodeType:
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9 l.append(const)
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10 return l
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11
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12 def compare(a, b):
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13 if not (a.co_name == "?" or a.co_name.startswith('<lambda')):
7cbd2887f60f Test utility to look for bad stacksize calculations.
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14 assert a.co_name == b.co_name, (a, b)
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15 if a.co_stacksize != b.co_stacksize:
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16 print "stack mismatch %s: %d vs. %d" % (a.co_name,
7cbd2887f60f Test utility to look for bad stacksize calculations.
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17 a.co_stacksize,
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18 b.co_stacksize)
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19 if a.co_stacksize > b.co_stacksize:
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20 print "good code"
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21 dis.dis(a)
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22 print "bad code"
7cbd2887f60f Test utility to look for bad stacksize calculations.
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23 dis.dis(b)
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24 assert 0
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25
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26 def main(files):
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27 for file in files:
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28 print file
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29 buf = open(file).read()
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30 try:
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31 co1 = compile(buf, file, "exec")
7cbd2887f60f Test utility to look for bad stacksize calculations.
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32 except SyntaxError:
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33 print "skipped"
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34 continue
7cbd2887f60f Test utility to look for bad stacksize calculations.
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35 co2 = compiler.compile(buf, file, "exec")
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36 co1l = extract_code_objects(co1)
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37 co2l = extract_code_objects(co2)
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38 for a, b in zip(co1l, co2l):
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39 compare(a, b)
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40
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41 if __name__ == "__main__":
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42 import sys
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43 main(sys.argv[1:])