The note to issue a reason.
A text snippet used to completely replace any use of the deprecated item in an expression.
This is currently unstable.
Whether to treat the since attribute as being a Rust version identifier (rather than an opaque string).
Auto Trait Implementations§
Returns the argument unchanged.
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain
repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 16 bytes