mirror of
https://github.com/github/codeql.git
synced 2025-12-17 17:23:36 +01:00
5fc1bbc8c5
since - Python 3 is ok from 3.7 onwards - support for Python 3.6 was just dropped - we do not actually know the minor version of the analysed code (only of the extractor)
65 lines
1.3 KiB
Python
65 lines
1.3 KiB
Python
#Unguarded calls to next()
|
|
|
|
def bad1(it):
|
|
while True:
|
|
yield next(it)
|
|
|
|
def bad2(seq):
|
|
it = iter(seq)
|
|
#Not OK as seq may be empty
|
|
raise KeyError(next(it))
|
|
yield 0
|
|
|
|
def ok1(seq):
|
|
#Not a generator
|
|
it = iter(seq)
|
|
#Not OK as seq may be empty
|
|
raise KeyError(next(it))
|
|
|
|
def ok2(seq):
|
|
if seq:
|
|
it = iter(seq)
|
|
#OK seq is non-empty so next(it) will not raise StopIteration
|
|
raise KeyError(next(it))
|
|
yield 0
|
|
|
|
def explicit_raise_stop_iter(seq):
|
|
for i in seq:
|
|
yield seq
|
|
raise StopIteration()
|
|
|
|
def ok3(seq):
|
|
it = iter(seq)
|
|
try:
|
|
yield next(iter)
|
|
except StopIteration:
|
|
return
|
|
|
|
def ok4(seq, ctx):
|
|
try:
|
|
with ctx:
|
|
yield next(iter)
|
|
except StopIteration:
|
|
return
|
|
|
|
#ODASA-6536
|
|
def next_in_comp(seq, fields):
|
|
seq_iter = iter(seq)
|
|
values = [ next(seq_iter) if f.attname in NAMES else DEFAULT for f in fields ]
|
|
return values
|
|
|
|
def ok5(seq):
|
|
yield next(iter([]), 'foo')
|
|
|
|
def ok6(seq):
|
|
yield next(iter([]), default='foo')
|
|
|
|
# Handling for multiple exception types, one of which is `StopIteration`
|
|
# Reported as a false positive in github/codeql#6227
|
|
def ok7(seq, ctx):
|
|
try:
|
|
with ctx:
|
|
yield next(iter)
|
|
except (StopIteration, MemoryError):
|
|
return
|