trivially-destroyed type in swift
Asked on 08/08/2024
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In Swift, a trivially-destroyed type is a type that does not require any special cleanup when its instances are destroyed. This concept is particularly relevant when discussing non-copyable types, which were introduced in Swift 6 to provide more control over resource management and performance.
Non-copyable types in Swift are designed to suppress the default copyability of types, making them suitable for scenarios where unique ownership is necessary. For example, a unique system resource such as a file can be represented as a non-copyable struct with a deinitializer that automatically closes it, preventing issues like multiple writers to the same file or resource leaks.
To learn more about non-copyable types and their usage in Swift, you can refer to the session Consume noncopyable types in Swift (07:05).
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