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bpo-47120: make POP_JUMP_IF_TRUE/FALSE/NONE/NOT_NONE relative (GH-32400)

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Irit Katriel 2022-04-11 10:40:24 +01:00 • committed by GitHub
parent 98ff4a6877
commit dd207a6ac5
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14 changed files with 357 additions and 135 deletions
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7
Lib/dis.py
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@ -392,6 +392,9 @@ def parse_exception_table(code):
except StopIteration:
return entries
def _is_backward_jump(op):
return 'JUMP_BACKWARD' in opname[op]
def _get_instructions_bytes(code, varname_from_oparg=None,
names=None, co_consts=None,
linestarts=None, line_offset=0,
@ -442,7 +445,7 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
argval = arg*2
argrepr = "to " + repr(argval)
elif op in hasjrel:
signed_arg = -arg if op == JUMP_BACKWARD else arg
signed_arg = -arg if _is_backward_jump(op) else arg
argval = offset + 2 + signed_arg*2
argrepr = "to " + repr(argval)
elif op in haslocal or op in hasfree:
@ -568,7 +571,7 @@ def findlabels(code):
for offset, op, arg in _unpack_opargs(code):
if arg is not None:
if op in hasjrel:
if op == JUMP_BACKWARD:
if _is_backward_jump(op):
arg = -arg
label = offset + 2 + arg*2
elif op in hasjabs: