how to judge whether there is a "if" in a expression

[alexanderhawl]

function executeOperation( address[] calldata assets, uint256[] calldata amounts, uint256[] calldata premiums, address, // initiator, bytes calldata params ) external returns (bool) { address pool = IAaveV2Provider(radiantV2Provider).getLendingPool(); if (msg.sender != pool) revert InvalidCaller(); bool charge;

in this code snippet, there is a if sentence about msg.sender, but how to use slither to find it? I tried use func.expressions, but it can't get the right answer.

[0xalpharush]

See

slither/slither/printers/functions/authorization.py

Lines 20 to 39 in 3befc96

	def get_msg_sender_checks(function: Function) -> List[str]:
	all_functions = (
	[f for f in function.all_internal_calls() if isinstance(f, Function)]
	+ [function]
	+ [m for m in function.modifiers if isinstance(m, Function)]
	)
	all_nodes_ = [f.nodes for f in all_functions]
	all_nodes = [item for sublist in all_nodes_ for item in sublist]
	all_conditional_nodes = [
	n for n in all_nodes if n.contains_if() or n.contains_require_or_assert()
	]
	all_conditional_nodes_on_msg_sender = [
	str(n.expression)
	for n in all_conditional_nodes
	if "msg.sender" in [v.name for v in n.solidity_variables_read]
	]
	return all_conditional_nodes_on_msg_sender