Struct rowan::TextUnit

pub struct TextUnit(_);

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.

Methods

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 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 SubAssign<TextUnit> for TextRange

fn sub_assign(&mut self, rhs: TextUnit)

Performs the -= operation.

impl SubAssign<TextUnit> for TextUnit

fn sub_assign(&mut self, rhs: TextUnit)

Performs the -= operation.

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

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

Performs the -= operation.

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

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

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 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, '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> 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 Sub<TextUnit> for 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<'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 StructuralEq for TextUnit

impl PartialOrd<TextUnit> 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: &TextUnit) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &TextUnit) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &TextUnit) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &TextUnit) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for TextUnit

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

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl Default for TextUnit

fn default() -> TextUnit

Returns the "default value" for a type.

impl Debug for TextUnit

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

Formats the value using the given formatter.

impl Display for TextUnit

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

Formats the value using the given formatter.

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, 

Feeds a slice of this type into the given [Hasher].

impl Sum<TextUnit> for TextUnit

fn sum<I>(iter: I) -> TextUnit where
    I: Iterator<Item = TextUnit>, 

Method which takes an iterator and generates Self from the elements by "summing up" the items.

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

fn sum<I>(iter: I) -> TextUnit where
    I: Iterator<Item = &'a TextUnit>, 

Method which takes an iterator and generates Self from the elements by "summing up" the items.

impl StructuralPartialEq for TextUnit

impl AddAssign<TextUnit> for TextRange

fn add_assign(&mut self, rhs: 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 TextUnit

fn add_assign(&mut self, rhs: TextUnit)

Performs the += operation.

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

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

Performs the += operation.

impl From<u32> for TextUnit

fn from(tu: u32) -> TextUnit

Performs the conversion.

impl Copy for TextUnit

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<'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<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, '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 Add<TextUnit> for TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

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

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, '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<TextUnit> for &'a TextUnit

type Output = TextUnit

The resulting type after applying the + operator.

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

Performs the + operation.

impl PartialEq<TextUnit> for TextUnit

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.