Struct PointerOffset

pub struct PointerOffset(pub usize);

Newtype around a pointer offset into a slice stream (&[T]/&str).

Tuple Fields

0: usize

Implementations

impl PointerOffset

pub fn translate_position<T>(self, initial_string: &T) -> usize

where T: ?Sized,

Converts the pointer-based position into an indexed position.

let text = "b";
let err = token('a').easy_parse(text).unwrap_err();
assert_eq!(err.position.0, text.as_ptr() as usize);
assert_eq!(err.map_position(|p| p.translate_position(text)).position, 0);

Trait Implementations

impl Clone for PointerOffset

fn clone(&self) -> PointerOffset

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PointerOffset

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

Formats the value using the given formatter.

impl Default for PointerOffset

fn default() -> PointerOffset

Returns the “default value” for a type.

impl Display for PointerOffset

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

Formats the value using the given formatter.

impl Ord for PointerOffset

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

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

fn partial_cmp(&self, other: &PointerOffset) -> 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 Copy for PointerOffset

impl Eq for PointerOffset

impl StructuralPartialEq for PointerOffset