## Path

# Struct Path

Source

    pub struct Path {
        pub span: Span,
        pub segments: ThinVec<PathSegment>,
        pub tokens: Option<LazyAttrTokenStream>,
    }

Expand description

A “Path” is essentially Rust’s notion of a name.

It’s represented as a sequence of identifiers, along with a bunch of supporting information.

E.g., `std::cmp::PartialEq`.

## Fields§

§`span: Span`§`segments: ThinVec<PathSegment>`

The segments in the path: the things separated by `::`. Global paths begin with `kw::PathRoot`.

§`tokens: Option<LazyAttrTokenStream>`

## Implementations§

Source§

### impl Path

Source

#### pub fn from_ident(ident: Ident) -> Path

Convert a span and an identifier to the corresponding one-segment path.

Source

#### pub fn is_global(&self) -> bool

Source

#### pub fn is_potential_trivial_const_arg(&self, allow_mgca_arg: bool) -> bool

Check if this path is potentially a trivial const arg, i.e., one that can potentially be represented without an anon const in the HIR.

If `allow_mgca_arg` is true (as should be the case in most situations when `#![feature(min_generic_const_args)]` is enabled), then this always returns true because all paths are valid.

Otherwise, it returns true iff the path has exactly one segment, and it has no generic args (i.e., it is potentially a const parameter).

## Trait Implementations§

Source§

### impl Clone for Path

Source§

#### fn clone(&self) -> Path

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from `source`. Read more
Source§

### impl Debug for Path

Source§

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

Formats the value using the given formatter. Read more
Source§

### impl<__D: SpanDecoder> Decodable<__D> for Path

Source§

#### fn decode(__decoder: &mut __D) -> Self

Source§

### impl<__E: SpanEncoder> Encodable<__E> for Path

Source§

#### fn encode(&self, __encoder: &mut __E)

Source§

### impl HasAttrs for Path

Source§

#### const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false

This is `true` if this `HasAttrs` might support ‘custom’ (proc-macro) inner attributes. Attributes like `#![cfg]` and `#![cfg_attr]` are not considered ‘custom’ attributes. Read more
Source§

#### fn attrs(&self) -> &[Attribute]

Source§

#### fn visit_attrs(&mut self, _f: impl FnOnce(&mut AttrVec))

Source§

### impl HasTokens for Path

Source§

#### fn tokens(&self) -> Option<&LazyAttrTokenStream>

Source§

#### fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>>

Source§

### impl<CTX: HashStableContext> HashStable<CTX> for Path

Source§

#### fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher)

Source§

### impl<V: MutVisitor> MutVisitable<V> for Path

Source§

#### type Extra = ()

Source§

#### fn visit_mut(&mut self, visitor: &mut V, extra: Self::Extra) -> V::Result

Source§

### impl<__V> MutWalkable<__V> for Path
where __V: MutVisitor,

Source§

#### fn walk_mut(&mut self, __visitor: &mut __V)

Source§

### impl PartialEq<&[Symbol]> for Path

Source§

#### fn eq(&self, names: &&[Symbol]) -> bool

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · Source§

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

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

### impl PartialEq<Symbol> for Path

Source§

#### fn eq(&self, name: &Symbol) -> bool

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · Source§

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

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

### impl<'a, V: Visitor<'a>> Visitable<'a, V> for Path

Source§

#### type Extra = ()

Source§

#### fn visit(&'a self, visitor: &mut V, extra: Self::Extra) -> V::Result

Source§

### impl<'__ast, __V> Walkable<'__ast, __V> for Path
where __V: Visitor<'__ast>,

Source§

#### fn walk_ref(&'__ast self, __visitor: &mut __V) -> __V::Result

## Auto Trait Implementations§

§

### impl DynSend for Path

§

### impl DynSync for Path

§

### impl Freeze for Path

§

### impl RefUnwindSafe for Path

§

### impl Send for Path

§

### impl Sync for Path

§

### impl Unpin for Path

§

### impl UnwindSafe for Path

## Blanket Implementations§

§

### impl<T> Aligned for T

§

#### const ALIGN: Alignment

Alignment of `Self`.
Source§

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

Source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
Source§

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

Source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

### impl<T> CloneToUninit for T
where T: Clone,

Source§

#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
Source§

### impl<T> From<T> for T

Source§

#### fn from(t: T) -> T

Returns the argument unchanged.

Source§

### impl<T> Instrument for T

Source§

#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided `Span`, returning an `Instrumented` wrapper. Read more
Source§

#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
Source§

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

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.

Source§

### impl<T> IntoEither for T

Source§

#### fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left` is `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
Source§

#### fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left(&self)` returns `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
Source§

### impl<T> MutVisitorResult for T

Source§

#### type Result = ()

Source§

### impl<T> Pointable for T

Source§

#### const ALIGN: usize

The alignment of pointer.
Source§

#### type Init = T

The type for initializers.
Source§

#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

### impl<T> Same for T

Source§

#### type Output = T

Should always be `Self`
Source§

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

Source§

#### type Owned = T

The resulting type after obtaining ownership.
Source§

#### fn to_owned(&self) -> T

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

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

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

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

Source§

#### type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

### impl<T> WithSubscriber for T

Source§

#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
Source§

#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes