Failing to build SwiftUI with more than 2 ForEach statements - xcode

Question

I'm receiving the following error when I try and build an Xcode project using SwiftUI.
The error I get is "The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions"
I have tried to remove a lot of the complexities of the code to simplify it down as much as possible. I also tried reducing the number of lines of Picker's to test whether that was the issues.
struct ContentView: View {
// set child name
#State private var childName: String = ""
// set the days of the week
let daysOfWeek = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"]
// set empty
#State private var selectedAttendance: String = ""
let attendance = ["None", "All Day", "AM", "PM"]
#State private var mondayAttendance = 0
#State private var tuesdayAttendance = 0
#State private var wednesdayAttendance = 0
#State private var thursdayAttendance = 0
#State private var fridayAttendance = 0
#State private var selectedProvider = 0
let providers = ["School 1", "School 2", "School 3", "School 4", "School 5"]
var body: some View {
NavigationView {
Form {
Section(header: Text("Your Child's Details")) {
TextField("Name", text: $childName)
}
// PICKER to choose childcare provider
Section(header: Text("Who looks after your child?")) {
Picker("Childcare Provider", selection: $selectedProvider) {
ForEach(0 ..< providers.count) {
Text("\(self.providers[$0])")
}
}
}
Section(header: Text("Which days does your child attend?")) {
VStack {
// Monday
HStack {
Text("Monday")
.dayOfWeek()
Picker("Monday", selection: $mondayAttendance) {
ForEach(0 ..< 4) {
Text("\(self.attendance[$0])")
}
}
.pickerStyle(SegmentedPickerStyle())
}
// Tuesday
HStack {
Text("Tuesday")
.dayOfWeek()
Picker("Tuesday", selection: $tuesdayAttendance) {
ForEach(0 ..< 4) {
Text("\(self.attendance[$0])")
}
}
.pickerStyle(SegmentedPickerStyle())
}
//
// // Wednesday
// HStack {
// Text("Wednesday")
// .dayOfWeek()
// Picker("Wednesday", selection: $wednesdayAttendance) {
// ForEach(0 ..< 4) {
// Text("\(self.attendance[$0])")
// }
// }
// .pickerStyle(SegmentedPickerStyle())
// }
}
}
}
.navigationBarTitle("Your Child")
}
}
}
When I try and build with just "Monday" and "Tuesday" showing, it works. As soon as I uncomment Wednesday (or more), the build fails and I get the error.
I understand that I need to simplify the code, but it's pretty simple already and I'm not sure where to take it next.
Any help is much appreciated.

Answer 1

It has nothing to do with For Each. Where is the definition of dayOfWeek() that is attached to Text. It should return a view. It should have failed even with one For Each as it had dayOfWeek(). Probably that modifier might have been defined in your app.