Struct Loc

pub struct Loc<T: ?Sized> { /* private fields */ }

Located data.

This is a simple wrapper around data that can be located in a source file. It is useful to wrap abstract syntax tree nodes.

It derefs into the inner value.

Implementations

impl<T: ?Sized> Loc<T>

pub fn new(t: T, span: Span) -> Loc<T>

where T: Sized,

Associate a span location to some data by wrapping it under Loc.

pub fn span(&self) -> Span

Get the span location of the data.

pub fn map<U, F>(self, f: F) -> Loc<U>

where F: FnOnce(T) -> U, T: Sized,

Maps the inner value using the given function.

pub fn inner_into<U>(self) -> Loc<U>

where T: Into<U>,

Convert the inner value.

pub fn try_map<U, F, E>(self, f: F) -> Result<Loc<U>, E>

where F: FnOnce(T) -> Result<U, E>, T: Sized,

Tries to map the inner value using the given function.

pub fn inner_try_into<U>(self) -> Result<Loc<U>, <T as TryInto<U>>::Error>

where T: TryInto<U>,

Try to convert the inner value.

pub fn into_inner(self) -> T

where T: Sized,

Unwrap the data.

pub fn into_raw_parts(self) -> (T, Span)

where T: Sized,

Break the wrapper into the value and its location.

impl<T> Loc<Option<T>>

pub fn transposed(t: Option<Loc<T>>, span: Span) -> Self

Transforms a Option<Loc<T>> into a Loc<Option<T>>.

If the input is None then this function returns Loc::new(None, span).

Trait Implementations

impl<T> AsMut<T> for Loc<T>

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

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T> AsRef<T> for Loc<T>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: Clone> Clone for Loc<T>

fn clone(&self) -> Loc<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Loc<T>

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

Formats the value using the given formatter.

impl<T> Deref for Loc<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for Loc<T>

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

Mutably dereferences the value.

impl<T: Display> Display for Loc<T>

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

Formats the value using the given formatter.

impl<T: Hash> Hash for Loc<T>

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

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<T: Ord> Ord for Loc<T>

fn cmp(&self, other: &Loc<T>) -> 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<T: PartialEq> PartialEq for Loc<T>

fn eq(&self, other: &Loc<T>) -> 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<T: PartialOrd> PartialOrd for Loc<T>

fn partial_cmp(&self, other: &Loc<T>) -> 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<T: Eq> Eq for Loc<T>