Struct rustc_hir::PathSegment

pub struct PathSegment<'hir> {
    pub ident: Ident,
    pub hir_id: HirId,
    pub res: Res,
    pub args: Option<&'hir GenericArgs<'hir>>,
    pub infer_args: bool,
}

A segment of a path: an identifier, an optional lifetime, and a set of types.

Fields

ident: Ident

The identifier portion of this path segment.

hir_id: HirId

res: Res

args: Option<&'hir GenericArgs<'hir>>

Type/lifetime parameters attached to this path. They come in two flavors: Path<A,B,C> and Path(A,B) -> C. Note that this is more than just simple syntactic sugar; the use of parens affects the region binding rules, so we preserve the distinction.

infer_args: bool

Whether to infer remaining type parameters, if any. This only applies to expression and pattern paths, and out of those only the segments with no type parameters to begin with, e.g., Vec::new is <Vec<..>>::new::<..>.

Implementations

impl<'hir> PathSegment<'hir>

pub fn new(ident: Ident, hir_id: HirId, res: Res) -> PathSegment<'hir>

Converts an identifier to the corresponding segment.

pub fn invalid() -> Self

pub fn args(&self) -> &GenericArgs<'hir>

Trait Implementations

impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for PathSegment<'tcx>

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut Self

fn allocate_from_iter<'a>(
    arena: &'a Arena<'tcx>,
    iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]

impl<'hir> Debug for PathSegment<'hir>

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

Formats the value using the given formatter.

impl<'hir, __CTX> HashStable<__CTX> for PathSegment<'hir>where
    __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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: 48 bytes