Struct TraversalSize 

pub struct TraversalSize { /* private fields */ }

Represents allowed sizes of a block of tiles The size is represented as log2(size). For example, TraversalSize { max: 6 } represents block of sizes up to 64 tiles.

Implementations

impl TraversalSize

pub fn new(min_size: u32, max_size: u32) -> Result<TraversalSize>

Create a new TraversalSize covering sizes from min_size up to max_size.

Both min_size and max_size must be positive powers of two, and min_size <= max_size.

Errors

Returns an error if sizes are zero, not powers of two, out of order, or too large.

pub const fn new_default() -> Self

Return a default TraversalSize covering the full range of valid sizes (1 to 2^31).

pub fn new_max(size: u32) -> Result<TraversalSize>

Shortcut to create a TraversalSize with minimum size 1 and maximum size size.

pub fn is_empty(&self) -> bool

Check whether the size range is empty (min > max).

pub fn is_full_range(&self) -> bool

pub fn max_size(&self) -> Result<u32>

Return the maximum allowed block size.

Errors

Returns an error if the range is empty or max is out of bounds.

pub fn min_size(&self) -> Result<u32>

Return the minimum allowed block size.

Errors

Returns an error if the range is empty.

pub fn intersect(&mut self, other: &TraversalSize) -> Result<()>

Restrict this range to the intersection with another TraversalSize.

Errors

Returns an error if the resulting range is empty (no overlap).

pub fn get_intersected(&self, other: &TraversalSize) -> Result<TraversalSize>

Trait Implementations

impl Clone for TraversalSize

fn clone(&self) -> TraversalSize

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TraversalSize

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

Formats the value using the given formatter.

impl Default for TraversalSize

fn default() -> Self

Returns the “default value” for a type.

impl Display for TraversalSize

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

Formats the value using the given formatter.

impl PartialEq for TraversalSize

fn eq(&self, other: &TraversalSize) -> 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 StructuralPartialEq for TraversalSize