Trait ZeroizeMetadata 

pub trait ZeroizeMetadata {
    const CAN_BE_BULK_ZEROIZED: bool;
}

Metadata about zeroization strategy for a type.

This trait provides compile-time information about whether a type can be bulk-zeroized with memset or requires element-by-element zeroization.

Note: This trait is NOT dyn-compatible (has associated constants). Use FastZeroizable for trait objects.

Required Associated Constants

const CAN_BE_BULK_ZEROIZED: bool

Whether this type can be bulk-zeroized with memset.

• true: All-zeros is a valid bit pattern (primitives)
• false: Requires element-by-element recursive zeroization (complex types)

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ZeroizeMetadata for bool

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for char

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for f32

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for f64

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for i8

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for i16

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for i32

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for i64

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for i128

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for isize

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for u8

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for u16

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for u32

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for u64

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for u128

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for ()

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for usize

const CAN_BE_BULK_ZEROIZED: bool = true

impl ZeroizeMetadata for String

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicBool

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicI8

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicI16

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicI32

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicI64

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicIsize

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicU8

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicU16

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicU32

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicU64

const CAN_BE_BULK_ZEROIZED: bool = false

impl ZeroizeMetadata for AtomicUsize

const CAN_BE_BULK_ZEROIZED: bool = false

impl<T> ZeroizeMetadata for *const T

const CAN_BE_BULK_ZEROIZED: bool = false

impl<T> ZeroizeMetadata for *mut T

const CAN_BE_BULK_ZEROIZED: bool = false

impl<T> ZeroizeMetadata for [T]

where T: FastZeroizable + ZeroizeMetadata,

const CAN_BE_BULK_ZEROIZED: bool = T::CAN_BE_BULK_ZEROIZED

impl<T: ZeroizeMetadata + FastZeroizable> ZeroizeMetadata for Option<T>

const CAN_BE_BULK_ZEROIZED: bool = false

impl<T: ZeroizeMetadata + FastZeroizable> ZeroizeMetadata for Box<T>

const CAN_BE_BULK_ZEROIZED: bool = T::CAN_BE_BULK_ZEROIZED

impl<T: ZeroizeMetadata> ZeroizeMetadata for Vec<T>

const CAN_BE_BULK_ZEROIZED: bool = false

impl<T: ZeroizeMetadata, const N: usize> ZeroizeMetadata for [T; N]

Zeroizes an array using either bulk memset or recursive element zeroization.

When fast=true, forces bulk memset regardless of T::CAN_BE_BULK_ZEROIZED. When fast=false, recursively zeroizes each element.

This function is exposed for testing both code paths independently.

const CAN_BE_BULK_ZEROIZED: bool = T::CAN_BE_BULK_ZEROIZED

Implementors

impl ZeroizeMetadata for ZeroizeOnDropSentinel

const CAN_BE_BULK_ZEROIZED: bool = false