pub struct HasMutInterior;
Expand description

Constant containing interior mutability (UnsafeCell<T>). This must be ruled out to make sure that evaluating the constant at compile-time and at any point during the run-time would produce the same result. In particular, promotion of temporaries must not change program behavior; if the promoted could be written to, that would be a problem.

Trait Implementations§

The name of the file used to debug the dataflow analysis that computes this qualif.
Extracts the field of ConstQualifs that corresponds to this Qualif.
Returns true if any value of the given type could possibly have this Qualif. Read more
Returns true if this Qualif is inherent to the given struct or enum. Read more
Whether this Qualif is cleared when a local is moved from.
Whether this Qualif might be evaluated after the promotion and can encounter a promoted.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout§

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: 0 bytes