Ownership in Swift
“Ownership is the responsibility of some piece of code to eventually cause a value to be destroyed. An ownership system is a set of rules or conventions for managing and transferring ownership.”
| Modifier | Caller | Callee |
| borrowing | Remains owner of original value. No need to copy or retain value. Responsible for keeping it alive for the duration of the callee. |
No need for a release. No implicit copying allowed. Explicit copying is required with a copy operator. |
| consuming | It can either give ownership of the original value to the callee OR retain or copy the value if it requires ownership of its own value. | Required to release the value. |
Docs
Deep Dives
keywords
borrowing keyword
consuming keyword
inout keyword
Ownership in Swift
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Docs
Deep Dives
keywords
borrowing keyword
consuming keyword
inout keyword