Struct RepeatCount 

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

The N of a repeated(P, N) — at least one section, by construction.

A group of no sections parses nothing: repeated(P, 0) would produce an empty Vec while consuming no input, which is not a parser anybody means to write and reads as a typo for the unbounded form. A negative count names no sections at all. Both are the same kind of value Separator refuses one field over — a number the runtime would have to invent a meaning for — and they are refused the same way, by the one constructor, rather than by a validate arm the next construction site can forget.

The upper bound is the plan’s: crate::plan::SectionItemNode stores the count as a u32, because the plan is a flat &'static repr the runtime reads without allocating. A count that does not fit is refused here, where the source span is still in hand, rather than truncated there.

Implementations

impl RepeatCount

pub fn new(n: i64) -> Result<Self, InvalidRepeatCount>

The only constructor. Refuses a count that names no sections.

Errors

InvalidRepeatCount for n <= 0 or n > u32::MAX.

pub fn get(self) -> u32

The count. Never zero.

Trait Implementations

impl Clone for RepeatCount

fn clone(&self) -> RepeatCount

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RepeatCount

impl Debug for RepeatCount

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

Formats the value using the given formatter.

impl Display for RepeatCount

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

Formats the value using the given formatter.

impl Eq for RepeatCount

impl Hash for RepeatCount

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 RepeatCount

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

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for RepeatCount

fn partial_cmp(&self, other: &RepeatCount) -> 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 StructuralPartialEq for RepeatCount