Enum rustc_trait_selection::traits::IntercrateAmbiguityCause

pub enum IntercrateAmbiguityCause<'tcx> {
    DownstreamCrate {
        trait_ref: TraitRef<'tcx>,
        self_ty: Option<Ty<'tcx>>,
    },
    UpstreamCrateUpdate {
        trait_ref: TraitRef<'tcx>,
        self_ty: Option<Ty<'tcx>>,
    },
    ReservationImpl {
        message: Symbol,
    },
}

Variants

DownstreamCrate

Fields

trait_ref: TraitRef<'tcx>

self_ty: Option<Ty<'tcx>>

UpstreamCrateUpdate

Fields

trait_ref: TraitRef<'tcx>

self_ty: Option<Ty<'tcx>>

ReservationImpl

Fields

message: Symbol

Implementations

impl<'tcx> IntercrateAmbiguityCause<'tcx>

pub fn add_intercrate_ambiguity_hint(&self, err: &mut Diagnostic)

Emits notes when the overlap is caused by complex intercrate ambiguities. See #23980 for details.

pub fn intercrate_ambiguity_hint(&self) -> String

Trait Implementations

impl<'tcx> Clone for IntercrateAmbiguityCause<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for IntercrateAmbiguityCause<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> Hash for IntercrateAmbiguityCause<'tcx>

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<'tcx> PartialEq for IntercrateAmbiguityCause<'tcx>

fn eq(&self, other: &IntercrateAmbiguityCause<'tcx>) -> bool

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'tcx> Eq for IntercrateAmbiguityCause<'tcx>

impl<'tcx> StructuralEq for IntercrateAmbiguityCause<'tcx>

impl<'tcx> StructuralPartialEq for IntercrateAmbiguityCause<'tcx>

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: 32 bytes

Size for each variant:

• DownstreamCrate: 28 bytes
• UpstreamCrateUpdate: 28 bytes
• ReservationImpl: 4 bytes