Struct OffsetList

pub struct OffsetList {
    pub smol: Vec<u32>,
    pub chonk: Vec<u64>,
}

A list of unsigned integers that uses u32 elements as long as they are small enough, and switches to u64 once they are not.

Fields

smol: Vec<u32>

Offsets that fit within a u32.

chonk: Vec<u64>

Offsets that either do not fit in a u32, or are inserted after some offset that did not fit.

Implementations

impl OffsetList

pub fn push(&mut self, offset: usize)

Inserts the offset, as a u32 if that is still on the table.

pub fn index(&self, index: usize) -> usize

Like std::ops::Index, which we cannot implement as it must return a &usize.

pub fn set(&mut self, index: usize, offset: usize)

Set the offset at location index.

Complicated if offset does not fit into self.smol.

pub fn last(&self) -> Option<usize>

The last element in the list of offsets, if non-empty.

pub fn len(&self) -> usize

THe number of offsets in the list.

pub fn with_capacity(cap: usize) -> Self

Allocate a new list with a specified capacity.

pub fn truncate(&mut self, length: usize)

Trim all elements at index length and greater.

Trait Implementations

impl Abomonation for OffsetList

unsafe fn entomb<W: Write>(&self, _write: &mut W) -> Result<()>

Write any additional information about &self beyond its binary representation.

fn extent(&self) -> usize

Reports the number of further bytes required to entomb self.

unsafe fn exhume<'a, 'b>( &'a mut self, bytes: &'b mut [u8], ) -> Option<&'b mut [u8]>

Recover any information for &mut self not evident from its binary representation.

impl Clone for OffsetList

fn clone(&self) -> OffsetList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OffsetList

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

Formats the value using the given formatter.

impl Ord for OffsetList

fn cmp(&self, other: &OffsetList) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for OffsetList

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for OffsetList

fn partial_cmp(&self, other: &OffsetList) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for OffsetList

impl StructuralPartialEq for OffsetList