Jeremy Hylton | b8903fb | 2001-10-17 13:39:06 +0000 | [diff] [blame] | 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:]) |