Avoid using var with Swift try/catch?

varTryCatch.swift

var results = [MyModel]() // must use var :(

do {
    results = try fetch(request: request, inContext: context)
}
catch {
    print("Fetch error: \(error)")
}

// use results
print("Results = \(results)")

Revision:
This is slightly better.

let results2: [MyModel]
do {
    results2 = try fetch(request: request, inContext: stack.managedObjectContext)
} catch {
    print("Error = \(error)")
    // This is awkward, but better than var
    results2 = [MyModel]()
}

print("Results = \(results2)")

I would probably use an optional here, or bail out of this scope entirely.

let results2: [MyModel]?
do {
    results2 = try fetch(request: request, inContext: stack.managedObjectContext)
} catch {
    print("Error = \(error)")
    // Less awkward, and still have to handle absence.
    results2 = nil
}

print("Results = \(results2)")