pub unsafe auto trait Freeze { }🔬This is a nightly-only experimental API. (
freeze)Expand description
Used to determine whether a type contains
any UnsafeCell internally, but not through an indirection.
This affects, for example, whether a static of that type is
placed in read-only static memory or writable static memory.
This can be used to declare that a constant with a generic type
will not contain interior mutability, and subsequently allow
placing the constant behind references.
§Safety
This trait is a core part of the language, it is just expressed as a trait in libcore for convenience. Do not implement it for other types.