C413 fix for reversed(sorted(..., reverse=...)) needs parentheses when key is a boolop to avoid changing semantics

[jakkdl]

reversed(sorted([1, 2, 3], reverse=False or True)) # reverses twice -> 1, 2, 3
# ruff C413 autofixes the above line to the below
sorted([1, 2, 3], reverse=not False or True) # reverses once -> 3, 2, 1
# if a paren were to be added, the problem is resolved
sorted([1, 2, 3], reverse=not (False or True)) # doesn't reverse -> 1, 2, 3

Due to https://docs.python.org/3/reference/expressions.html#operator-precedence
This affects boolean operators and if-expr's. Higher-precedented operators won't need parens added, walruses need to be wrapped in parens in the original statement, and lambda's are invalid in this context.

command invocation & version

$ ruff check --select=C413 --fix --unsafe-fixes --isolated - <<< 'reversed(sorted([1, 2, 3], reverse=True if True else False))' 
sorted([1, 2, 3], reverse=not True if True else False)
Found 1 error (1 fixed, 0 remaining).
$ ruff --version
ruff 0.3.2

[zanieb]

Thanks for the report! Your assessment looks right to me and this is notably not the reason this fix is marked as unsafe.