Struct TextUnit

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

An offset into text. Offset is represented as u32 storing number of utf8-bytes, but most of the clients should treat it like opaque measure.

Implementations

impl TextUnit

pub fn of_char(c: char) -> TextUnit

TextUnit equal to the length of this char.

pub fn of_str(s: &str) -> TextUnit

TextUnit equal to the length of this string.

Panics

Panics if the length of the string is greater than u32::max_value()

pub fn checked_sub(self, other: TextUnit) -> Option<TextUnit>

pub fn from_usize(size: usize) -> TextUnit

pub fn to_usize(self) -> usize

Trait Implementations

impl<'a, 'b> Add<&'a TextUnit> for &'b TextRange

type Output = TextRange

The resulting type after applying the + operator.

fn add(self, rhs: &'a TextUnit) -> TextRange

Performs the + operation.

impl<'a, 'b> Add<&'a TextUnit> for &'b TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

fn add(self, rhs: &'a TextUnit) -> TextUnit

Performs the + operation.

impl<'a> Add<&'a TextUnit> for TextRange

type Output = TextRange

The resulting type after applying the + operator.

fn add(self, rhs: &'a TextUnit) -> TextRange

Performs the + operation.

impl<'a> Add<&'a TextUnit> for TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

fn add(self, rhs: &'a TextUnit) -> TextUnit

Performs the + operation.

impl<'a> Add<TextUnit> for &'a TextRange

type Output = TextRange

The resulting type after applying the + operator.

fn add(self, rhs: TextUnit) -> TextRange

Performs the + operation.

impl<'a> Add<TextUnit> for &'a TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

fn add(self, rhs: TextUnit) -> TextUnit

Performs the + operation.

impl Add<TextUnit> for TextRange

type Output = TextRange

The resulting type after applying the + operator.

fn add(self, rhs: TextUnit) -> TextRange

Performs the + operation.

impl Add for TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

fn add(self, rhs: TextUnit) -> TextUnit

Performs the + operation.

impl<'a> AddAssign<&'a TextUnit> for TextRange

fn add_assign(&mut self, rhs: &'a TextUnit)

Performs the += operation.

impl<'a> AddAssign<&'a TextUnit> for TextUnit

fn add_assign(&mut self, rhs: &'a TextUnit)

Performs the += operation.

impl AddAssign<TextUnit> for TextRange

fn add_assign(&mut self, rhs: TextUnit)

Performs the += operation.

impl AddAssign for TextUnit

fn add_assign(&mut self, rhs: TextUnit)

Performs the += operation.

impl Clone for TextUnit

fn clone(&self) -> TextUnit

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TextUnit

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

Formats the value using the given formatter.

impl Default for TextUnit

fn default() -> TextUnit

Returns the “default value” for a type.

impl Display for TextUnit

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

Formats the value using the given formatter.

impl From<u32> for TextUnit

fn from(tu: u32) -> TextUnit

Converts to this type from the input type.

impl Hash for TextUnit

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

where __H: Hasher,

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 TextUnit

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

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

fn partial_cmp(&self, other: &TextUnit) -> 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 RangeBounds<TextUnit> for TextRange

fn start_bound(&self) -> Bound<&TextUnit>

Start index bound.

fn end_bound(&self) -> Bound<&TextUnit>

End index bound.

fn contains<U>(&self, item: &U) -> bool

where T: PartialOrd<U>, U: PartialOrd<T> + ?Sized,

Returns true if item is contained in the range.

fn is_empty(&self) -> bool

where T: PartialOrd,

🔬This is a nightly-only experimental API. (range_bounds_is_empty)

Returns true if the range contains no items. One-sided ranges (RangeFrom, etc) always return false.

impl<'a, 'b> Sub<&'a TextUnit> for &'b TextRange

type Output = TextRange

The resulting type after applying the - operator.

fn sub(self, rhs: &'a TextUnit) -> TextRange

Performs the - operation.

impl<'a, 'b> Sub<&'a TextUnit> for &'b TextUnit

type Output = TextUnit

The resulting type after applying the - operator.

fn sub(self, rhs: &'a TextUnit) -> TextUnit

Performs the - operation.

impl<'a> Sub<&'a TextUnit> for TextRange

type Output = TextRange

The resulting type after applying the - operator.

fn sub(self, rhs: &'a TextUnit) -> TextRange

Performs the - operation.

impl<'a> Sub<&'a TextUnit> for TextUnit

type Output = TextUnit

The resulting type after applying the - operator.

fn sub(self, rhs: &'a TextUnit) -> TextUnit

Performs the - operation.

impl<'a> Sub<TextUnit> for &'a TextRange

type Output = TextRange

The resulting type after applying the - operator.

fn sub(self, rhs: TextUnit) -> TextRange

Performs the - operation.

impl<'a> Sub<TextUnit> for &'a TextUnit

type Output = TextUnit

The resulting type after applying the - operator.

fn sub(self, rhs: TextUnit) -> TextUnit

Performs the - operation.

impl Sub<TextUnit> for TextRange

type Output = TextRange

The resulting type after applying the - operator.

fn sub(self, rhs: TextUnit) -> TextRange

Performs the - operation.

impl Sub for TextUnit

type Output = TextUnit

The resulting type after applying the - operator.

fn sub(self, rhs: TextUnit) -> TextUnit

Performs the - operation.

impl<'a> SubAssign<&'a TextUnit> for TextRange

fn sub_assign(&mut self, rhs: &'a TextUnit)

Performs the -= operation.

impl<'a> SubAssign<&'a TextUnit> for TextUnit

fn sub_assign(&mut self, rhs: &'a TextUnit)

Performs the -= operation.

impl SubAssign<TextUnit> for TextRange

fn sub_assign(&mut self, rhs: TextUnit)

Performs the -= operation.

impl SubAssign for TextUnit

fn sub_assign(&mut self, rhs: TextUnit)

Performs the -= operation.

impl<'a> Sum<&'a TextUnit> for TextUnit

fn sum<I>(iter: I) -> TextUnit

where I: Iterator<Item = &'a TextUnit>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Sum for TextUnit

fn sum<I>(iter: I) -> TextUnit

where I: Iterator<Item = TextUnit>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Copy for TextUnit

impl Eq for TextUnit

impl StructuralPartialEq for TextUnit