It just becomes complicated for compiler. The solution is to simplify by separation (always useful).
Here is possible approach. Tested with Xcode 12.1 / iOS 14.1 (you can simplify it even more and far).
struct ContentView: View {
var departmentList = ["Department 1", "Department 2", "Department 3", "Department 4", "Deprtment 5"]
var salesDepartmentList = ["SalesDepartment 1", "SalesDepartment 2", "SalesDepartment 3"]
var itDepartmentList = ["ITDepartment 1", "ITDepartment 2", "ITDepartment 3"]
var body: some View {
if #available(iOS 14.0, *) {
VStack {
Menu("Menu") {
Menu("Departments") {
ForEach(departmentList, id: \.self) { department in
if department == "Department 1" {
salesSubmenu(for: department)
}
else if department == "Department 2" {
itSubmenu(for: department)
}
}
}
}
}
}
}
func salesSubmenu(for department: String) -> some View {
Menu(department) {
ForEach(salesDepartmentList, id: \.self) { salesDepartment in
Button(salesDepartment, action: {
print("Do sales stuff")
})
}
}
}
func itSubmenu(for department: String) -> some View {
Menu(department) {
ForEach(itDepartmentList, id: \.self) { itDepartment in
Button(itDepartment, action: {
print("Do IT stuff")
})
}
}
}
}