Many try in single do { ... } catch { ... }

Using Swift
1

Hello.

Is a good (common) strategy to make several try attempts in single do { ... } catch { ... } statement?

do {
    let sever = try connect()
    let data = try server.data()
    try server.close()
} catch ServerError {
    // server
} catch ReadError {
    // read
} catch {
    // other
}
2

That depends on the flow: Often, it only makes sense to use a single "do", because steps build on top of each other.

3

In other words, if connect() and server.data() are independent and you don't want the failure of one method to interrupt the other – your example isn't the right approach, since if connect() throws an error, control will be transferred to catch. (The program will not proceed further in the do statement). Otherwise, like @tino noted, it is the right way to go.