Struct JavascriptCodeUnitString 

pub struct JavascriptCodeUnitString { /* private fields */ }

An ECMAScript String as exact UTF-16 code units.

This face admits lone surrogates. Canonical SIM text remains scalar Unicode; conversion to it is explicit and fails rather than replacing data.

Implementations

impl JavascriptCodeUnitString

pub fn from_scalar(text: &str) -> Self

Encode canonical scalar text into the JavaScript face.

pub fn from_code_units(units: Vec<u16>) -> Self

Preserve an exact sequence including lone surrogates.

pub fn len(&self) -> usize

ECMAScript length in code units.

pub fn is_empty(&self) -> bool

Whether the string has no code units.

pub fn code_unit_at(&self, index: usize) -> Option<u16>

Index one code unit.

pub fn slice(&self, start: usize, end: usize) -> Self

Slice by code-unit indices, clamped as String.prototype.slice does for nonnegative indices.

pub fn code_units(&self) -> impl Iterator<Item = u16> + '_

Iterate exact code units (the indexing face).

pub fn iter_strings(&self) -> JavascriptStringIterator<'_>

Iterate ECMAScript string iterator chunks: paired surrogates together, lone units alone.

pub fn to_scalar(&self) -> Result<String, JavascriptTextError>

Convert only well-formed UTF-16 to canonical scalar SIM text.

Trait Implementations

impl Clone for JavascriptCodeUnitString

fn clone(&self) -> JavascriptCodeUnitString

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JavascriptCodeUnitString

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

Formats the value using the given formatter.

impl Default for JavascriptCodeUnitString

fn default() -> JavascriptCodeUnitString

Returns the “default value” for a type.

impl Eq for JavascriptCodeUnitString

impl PartialEq for JavascriptCodeUnitString

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JavascriptCodeUnitString