Struct rustc::ty::ItemSubsts

pub struct ItemSubsts<'tcx> {
    pub substs: &'tcx Substs<'tcx>,
}

Unstable (rustc_private)

Records the substitutions used to translate the polytype for an item into the monotype of an item reference.

Fields

substs: &'tcx Substs<'tcx>

Unstable (rustc_private)

Methods

impl<'tcx> ItemSubsts<'tcx>

fn is_noop(&self) -> bool

Trait Implementations

impl<'a, 'tcx> Lift<'tcx> for ItemSubsts<'a>

type Lifted = ItemSubsts<'tcx>

fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<Self::Lifted>

impl<'tcx> TypeFoldable<'tcx> for ItemSubsts<'tcx>

fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self

fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool

fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self

fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool

fn has_regions_escaping_depth(&self, depth: u32) -> bool

fn has_escaping_regions(&self) -> bool

fn has_type_flags(&self, flags: TypeFlags) -> bool

fn has_projection_types(&self) -> bool

fn references_error(&self) -> bool

fn has_param_types(&self) -> bool

fn has_self_ty(&self) -> bool

fn has_infer_types(&self) -> bool

fn needs_infer(&self) -> bool

fn needs_subst(&self) -> bool

fn has_closure_types(&self) -> bool

fn has_erasable_regions(&self) -> bool

fn is_global(&self) -> bool

Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Errs on the side of returning false.

impl<'tcx> Debug for ItemSubsts<'tcx>

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

Formats the value using the given formatter.

Derived Implementations

impl<'tcx> Clone for ItemSubsts<'tcx>

fn clone(&self) -> ItemSubsts<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.