Struct DefId 

pub struct DefId {
    pub(crate) contents: HashConsed<DefIdContents>,
}

Reflects rustc_hir::def_id::DefId, augmented to also give ids to promoted constants (which have their own ad-hoc numbering scheme in rustc for now).

Fields

contents: HashConsed<DefIdContents>

Implementations

impl DefId

pub fn as_rust_def_id(&self) -> Option<RDefId>

The rustc def_id corresponding to this item, if there is one. Promoted constants don’t have a rustc def_id.

pub fn real_rust_def_id(&self) -> RDefId

The rustc def_id of this item. Panics if this is not a real rustc item.

pub fn underlying_rust_def_id(&self) -> Option<RDefId>

The def_id of this item or its parent if this is a promoted constant.

pub fn as_def_id_even_synthetic(&self) -> RDefId

The def_id of this item, or its parent if this is a promoted constant, or a made-up DefId for synthetic items. The method is explicitly named to phase out DefIds for synthetic items.

pub fn is_local(&self) -> bool

pub fn promoted_id(&self) -> Option<PromotedId>

fn make<'tcx, S: BaseState<'tcx>>(s: &S, def_id: RDefId) -> Self

pub fn make_synthetic<'tcx, S: BaseState<'tcx>>( s: &S, synthetic: SyntheticItem, def_id: RDefId, ) -> Self

pub fn as_synthetic<'tcx>( &self, _s: &impl BaseState<'tcx>, ) -> Option<SyntheticItem>

Returns the SyntheticItem encoded by a rustc DefId, if any.

Note that this method relies on rustc indexes, which are session specific. See Self documentation.

pub fn parent<'tcx>(&self, s: &impl BaseState<'tcx>) -> Option<DefId>

pub fn crate_name<'tcx>(&self, s: &impl BaseState<'tcx>) -> Symbol

pub fn path_item<'tcx>( &self, s: &impl BaseState<'tcx>, ) -> DisambiguatedDefPathItem

The PathItem corresponding to this item.

pub fn make_promoted_child<'tcx, S: BaseState<'tcx>>( &self, s: &S, promoted_id: PromotedId, ) -> Self

Construct a hax DefId for the nth promoted constant of the current item. That DefId has no corresponding rustc DefId.

impl DefId

pub fn visibility<'tcx>(&self, tcx: TyCtxt<'tcx>) -> Option<bool>

Gets the visibility (pub or not) of the definition. Returns None for defs that don’t have a meaningful visibility.

pub fn attrs<'tcx>(&self, tcx: TyCtxt<'tcx>) -> &'tcx [Attribute]

Gets the attributes of the definition.

impl DefId

pub fn def_span<'tcx>(&self, s: &impl BaseState<'tcx>) -> Span

Get the span of the definition of this item. This is the span used in diagnostics when referring to the item.

pub fn full_def<'tcx, S>(&self, s: &S) -> Arc<FullDef>

where S: BaseState<'tcx>,

Get the full definition of this item.

pub fn full_def_maybe_instantiated<'tcx, S>( &self, s: &S, args: Option<GenericArgsRef<'tcx>>, ) -> Arc<FullDef>

where S: BaseState<'tcx>,

Get the full definition of this item, instantiated if args is Some.

Trait Implementations

impl Clone for DefId

fn clone(&self) -> DefId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DefId

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

Formats the value using the given formatter.

impl Deref for DefId

type Target = DefIdContents

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for DefId

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 PartialEq for DefId

fn eq(&self, other: &DefId) -> 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<'s, S: BaseState<'s>> SInto<S, DefId> for DefId

fn sinto(&self, s: &S) -> DefId

impl Eq for DefId

impl StructuralPartialEq for DefId