Enum VecConversionError 

#[non_exhaustive]
pub enum VecConversionError {
    AlignMismatch {
        expected: usize,
        allocated: usize,
    },
    SlackCapacity {
        element_size: usize,
        allocated: usize,
    },
    ZeroSizedElements,
}

Error when converting an Allocation to a Vec.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

AlignMismatch

Indicates an alignment mismatch of the requested element type and the allocation.

Fields

expected: usize

expected alignment for the requested type

allocated: usize

actual alignment of the allocation

SlackCapacity

Indicates that there is some slack capacity when trying to fit a whole multiple of elements into the allocated memory to determine the vec’s capacity.

Fields

element_size: usize

size of the requested element

allocated: usize

allocated capacity in bytes

ZeroSizedElements

Tried to convert to a Vec of ZSTs. This is currently not supported due to ambiguity of the requested capacity. Even if the allocation is zero-sized, we can fit an arbitrary amount of elements as capacity.

If you need this conversion to succeed, open an issue.

Trait Implementations

impl Clone for VecConversionError

fn clone(&self) -> VecConversionError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VecConversionError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.