Struct rustc::ty::ImplHeader

pub struct ImplHeader<'tcx> {
    pub impl_def_id: DefId,
    pub self_ty: Ty<'tcx>,
    pub trait_ref: Option<TraitRef<'tcx>>,
    pub predicates: Vec<Predicate<'tcx>>,
}

Unstable (rustc_private)

The "header" of an impl is everything outside the body: a Self type, a trait ref (in the case of a trait impl), and a set of predicates (from the bounds/where clauses).

Fields

impl_def_id: DefId

Unstable (rustc_private)

self_ty: Ty<'tcx>

Unstable (rustc_private)

trait_ref: Option<TraitRef<'tcx>>

Unstable (rustc_private)

predicates: Vec<Predicate<'tcx>>

Unstable (rustc_private)

Methods

impl<'a, 'gcx, 'tcx> ImplHeader<'tcx>

fn with_fresh_ty_vars(selcx: &mut SelectionContext<'a, 'gcx, 'tcx>, impl_def_id: DefId) -> ImplHeader<'tcx>

Trait Implementations

impl<'tcx> TypeFoldable<'tcx> for ImplHeader<'tcx>

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

fn 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 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.

Derived Implementations

impl<'tcx> Debug for ImplHeader<'tcx>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'tcx> Hash for ImplHeader<'tcx>

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.

impl<'tcx> Eq for ImplHeader<'tcx>

impl<'tcx> PartialEq for ImplHeader<'tcx>

fn eq(&self, __arg_0: &ImplHeader<'tcx>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ImplHeader<'tcx>) -> bool

This method tests for !=.

impl<'tcx> Clone for ImplHeader<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.