Struct PositiveUsize 

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

A positive non-zero usize (≥1)

Many configuration values must be at least 1 (e.g., indentation sizes, spaces per tab). This type enforces that constraint at deserialization time, preventing invalid configs like “0 spaces per tab” or “0 character line length”.

Implementations

impl PositiveUsize

pub fn new(value: usize) -> Result<Self, PositiveUsizeError>

Create a new PositiveUsize, validating it’s at least 1.

Errors

Returns PositiveUsizeError if the value is 0.

pub fn get(self) -> usize

Get the underlying value (guaranteed to be ≥1).

pub const fn from_const(value: usize) -> Self

Convert from a default value (for use in config defaults).

Panics

Panics if the value is 0. This is intended for const defaults only.

Trait Implementations

impl Clone for PositiveUsize

fn clone(&self) -> PositiveUsize

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PositiveUsize

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PositiveUsize

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<PositiveUsize> for usize

fn from(val: PositiveUsize) -> Self

Converts to this type from the input type.

impl Hash for PositiveUsize

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PositiveUsize

fn cmp(&self, other: &PositiveUsize) -> 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 PositiveUsize

fn eq(&self, other: &PositiveUsize) -> 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 PositiveUsize

fn partial_cmp(&self, other: &PositiveUsize) -> 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 Serialize for PositiveUsize

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for PositiveUsize

impl Eq for PositiveUsize

impl StructuralPartialEq for PositiveUsize