Struct Unit 

pub struct Unit(/* private fields */);

An unit represents an element in a double-array.

Implementations

impl Unit

pub const fn new() -> Self

Creates a new Unit.

pub fn from_u32(value: u32) -> Self

Creates a new Unit from value.

pub fn as_u32(&self) -> u32

Returns an internal 32 bit integer.

pub fn has_leaf(&self) -> bool

Returns true if the unit have a leaf as a child unit. Otherwise, returns false.

pub fn is_leaf(&self) -> bool

Returns true if the unit is a leaf which have a value. Otherwise, return false.

pub fn value(&self) -> u32

Returns a 31 bits unsigned integer value associated with the unit.

pub fn label(&self) -> u32

Returns a label (<= 255) if the unit is not a leaf. Otherwise, returns a integer greater than 255.

pub fn offset(&self) -> u32

Returns an offset value within the unit. If the offset extension flag is true, returns the offset multiplied by 256.

pub fn set_offset(&mut self, offset: u32)

Sets an offset to the unit. offset should be a value less than or equal to 29 bits. If the offset is greater than 21 bits, sets the offset extension flag and the offset without lower 8 bits (then, lower 8 bits of the given offset should be 0).

pub fn set_has_leaf(&mut self, has_leaf: bool)

Sets a has_leaf flag to the unit.

pub fn set_label(&mut self, label: u8)

Sets a label to the unit.

pub fn set_value(&mut self, value: u32)

Sets a value to the unit.

pub fn to_string(&self) -> String

Returns a string representation of the unit.

Trait Implementations

impl Clone for Unit

fn clone(&self) -> Unit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Unit

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

Formats the value using the given formatter.

impl Copy for Unit