If you wish to be sure that your code adopts Swift concurrency as appropriately as potential in Swift 5.7, it is a good suggestion to allow the Strict Concurrency Checking (SWIFT_STRICT_CONCURRENCY
) in your mission.
To do that, choose your mission’s goal and navigate to the Construct Settings
tab. Be sure to choose All
from the listing of settings that’s proven (Primary
is the default) and sort Strict Concurrency
within the searchbar to seek out the Strict Concurrency Checking
construct setting.
The screenshot under reveals all of the related components so that you can see:
The default worth for this setting is Minimal
which boils all the way down to the Compiler solely checking express Sendable
annotations amongst different issues. This setting is the least restrictive and enforces as little of Swift Concurrency’s constraints as potential in the meanwhile.
You may bump your checking to Focused
which can implement Sendable
and actor-isolation checks in your code, and it’ll explicitly very that Sendable
constraints are met while you mark one in every of your sorts as Sendable
. This mode is basically a little bit of a hybrid between the habits that is meant in Swift 6, and what’s allowed now. You need to use this mode to have a little bit of checking in your code that makes use of Swift Concurrency with out an excessive amount of warnings and / or errors in your present codebase.
With Full
you’re going to get the complete suite of concurrency constraints, primarily as they’ll work in Swift 6. Personally I might advocate enabling this setting for brand spanking new tasks the place you need all your code to be correctly checked instantly. In an current codebase this mode could be slightly too strict, however then again it would flag plenty of issues that might be obligatory in Swift 6.