Showing the changes to sys/src/cmd/python/Tools/compiler/stacktest.py (1 of 3706 files). Show all
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| 1 | +import compiler | |
| 2 | +import dis | |
| 3 | +import types | |
| 4 | + | |
| 5 | +def extract_code_objects(co): | |
| 6 | + l = [co] | |
| 7 | + for const in co.co_consts: | |
| 8 | + if type(const) == types.CodeType: | |
| 9 | + l.append(const) | |
| 10 | + return l | |
| 11 | + | |
| 12 | +def compare(a, b): | |
| 13 | + if not (a.co_name == "?" or a.co_name.startswith('<lambda')): | |
| 14 | + assert a.co_name == b.co_name, (a, b) | |
| 15 | + if a.co_stacksize != b.co_stacksize: | |
| 16 | + print "stack mismatch %s: %d vs. %d" % (a.co_name, | |
| 17 | + a.co_stacksize, | |
| 18 | + b.co_stacksize) | |
| 19 | + if a.co_stacksize > b.co_stacksize: | |
| 20 | + print "good code" | |
| 21 | + dis.dis(a) | |
| 22 | + print "bad code" | |
| 23 | + dis.dis(b) | |
| 24 | + assert 0 | |
| 25 | + | |
| 26 | +def main(files): | |
| 27 | + for file in files: | |
| 28 | + print file | |
| 29 | + buf = open(file).read() | |
| 30 | + try: | |
| 31 | + co1 = compile(buf, file, "exec") | |
| 32 | + except SyntaxError: | |
| 33 | + print "skipped" | |
| 34 | + continue | |
| 35 | + co2 = compiler.compile(buf, file, "exec") | |
| 36 | + co1l = extract_code_objects(co1) | |
| 37 | + co2l = extract_code_objects(co2) | |
| 38 | + for a, b in zip(co1l, co2l): | |
| 39 | + compare(a, b) | |
| 40 | + | |
| 41 | +if __name__ == "__main__": | |
| 42 | + import sys | |
| 43 | + main(sys.argv[1:]) | |