New submission from Thomas Grainger <tagr...@gmail.com>:
the following code prints:
import sys
import dis
import pprint
def demo():
for i in range(1):
if i >= 0:
pass
class Tracer:
def __init__(self):
self.events = []
def trace(self, frame, event, arg):
self.events.append((frame.f_lineno, frame.f_lasti, event))
frame.f_trace_lines = True
frame.f_trace_opcodes = True
return self.trace
def main():
t = Tracer()
old_trace = sys.gettrace()
try:
sys.settrace(t.trace)
demo()
finally:
sys.settrace(old_trace)
dis.dis(demo)
pprint.pp(t.events)
if __name__ == "__main__":
sys.exit(main())
7 0 LOAD_GLOBAL 0 (range)
2 LOAD_CONST 1 (1)
4 CALL_FUNCTION 1
6 GET_ITER
>> 8 FOR_ITER 7 (to 24)
10 STORE_FAST 0 (i)
8 12 LOAD_FAST 0 (i)
14 LOAD_CONST 2 (0)
16 COMPARE_OP 5 (>=)
18 POP_JUMP_IF_FALSE 11 (to 22)
9 20 NOP
>> 22 JUMP_ABSOLUTE 4 (to 8)
7 >> 24 LOAD_CONST 0 (None)
26 RETURN_VALUE
[(6, -1, 'call'),
(7, 0, 'line'),
(7, 0, 'opcode'),
(7, 2, 'opcode'),
(7, 4, 'opcode'),
(7, 6, 'opcode'),
(7, 8, 'opcode'),
(7, 10, 'opcode'),
(8, 12, 'line'),
(8, 12, 'opcode'),
(8, 14, 'opcode'),
(8, 16, 'opcode'),
(8, 18, 'opcode'),
(9, 20, 'line'),
(9, 20, 'opcode'),
(None, 22, 'opcode'),
(7, 8, 'line'),
(7, 8, 'opcode'),
(7, 24, 'opcode'),
(7, 26, 'opcode'),
(7, 26, 'return')]
but I'd expect (9, 22, 'opcode') instead of (None, 22, 'opcode'),
----------
messages: 415697
nosy: graingert
priority: normal
severity: normal
status: open
title: missing frame.f_lineno on JUMP_ABSOLUTE
versions: Python 3.10, Python 3.11
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue47085>
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