Struct lrpar::Span

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pub struct Span { /* private fields */ }

Expand description

A Span records what portion of the user’s input something (e.g. a lexeme or production) references (i.e. the Span doesn’t hold a reference / copy of the actual input).

Implementations

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impl Span

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pub fn new(start: usize, end: usize) -> Self

Create a new span starting at byte start and ending at byte end.

Panics

If end is less than start.

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pub fn start(&self) -> usize

Byte offset of the start of the span.

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pub fn end(&self) -> usize

Byte offset of the end of the span.

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pub fn len(&self) -> usize

Length in bytes of the span.

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pub fn is_empty(&self) -> bool

Returns true if this Span covers 0 bytes, or false otherwise.

Trait Implementations

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impl Clone for Span

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fn clone(&self) -> Span

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Span

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

Formats the value using the given formatter. Read more

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impl PartialEq for Span

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

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

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

This method tests for !=.

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impl StructuralPartialEq for Span

Auto Trait Implementations

impl RefUnwindSafe for Span

impl Send for Span

impl Sync for Span

impl Unpin for Span

impl UnwindSafe for Span

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct lrpar::Span

Implementations

impl Span

pub fn new(start: usize, end: usize) -> Self

Panics

pub fn start(&self) -> usize

pub fn end(&self) -> usize

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

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

impl Debug for Span

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

impl PartialEq<Span> for Span

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

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

impl Copy for Span

impl Eq for Span

impl StructuralEq for Span

impl StructuralPartialEq for Span

Auto Trait Implementations

impl RefUnwindSafe for Span

impl Send for Span

impl Sync for Span

impl Unpin for Span

impl UnwindSafe for Span

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,