Function isNegationOf

pkg/workflow/expression_optimizer.go:115–123

isNegationOf returns true when b is the logical negation of a or a is the logical negation of b (handles both A / !A and !A / A cases).

(a, b ConditionNode)

// isNegationOf returns true when b is the logical negation of a or a is the
// logical negation of b (handles both A / !A and !A / A cases).
func isNegationOf(a, b ConditionNode) bool {
	if notB, ok := b.(*NotNode); ok && nodesEqual(a, notB.Child) {
		return true
	}
	if notA, ok := a.(*NotNode); ok && nodesEqual(notA.Child, b) {
		return true
	}
	return false
}

// containsStatusFunc returns true when any node in the tree is a status function.
// Used to gate complement / idempotent rules that must not fire on expressions