Enum Lengths 

pub enum Lengths {
    U16(Vec<u16>),
    U32(Vec<u32>),
    U64(Vec<u64>),
}

Compact positive lengths, stored as length - 1.

The width is selected from the configured maximum, not the object length. Public variants allow external persistence without enabling serde.

Variants

U16(Vec<u16>)

Lengths up to and including 65,536 bytes.

U32(Vec<u32>)

Lengths up to and including 4,294,967,296 bytes.

U64(Vec<u64>)

Larger lengths. An encoded u64::MAX is invalid.

Implementations

impl Lengths

pub fn new(max_length: u64) -> Result<Self>

Create an empty table with the width required by max_length.

pub fn len(&self) -> usize

Number of entries.

pub fn is_empty(&self) -> bool

Whether there are no entries.

pub fn width(&self) -> usize

Bytes per entry, excluding the vector’s spare capacity.

pub fn get(&self, index: usize) -> Option<u64>

Decode an entry. Returns None for an absent or overflowing entry.

pub fn push(&mut self, length: u64) -> Result<()>

Append a positive length that fits this table’s width.

Trait Implementations

impl Clone for Lengths

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Lengths

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

Formats the value using the given formatter.

impl Eq for Lengths

impl PartialEq for Lengths

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Lengths