Enum Ambiguity

pub enum Ambiguity {
    MultipleImplsFound {
        concrete_trait_id: ConcreteTraitId,
        impls: Vec<ImplId>,
    },
    FreeVariable {
        impl_id: ImplId,
        var: InferenceVar,
    },
    WillNotInfer(ConcreteTraitId),
    NegativeImplWithUnresolvedGenericArgs {
        impl_id: ImplId,
        ty: TypeId,
    },
}

Describes the kinds of inference ambiguities.

Variants

MultipleImplsFound

Fields

concrete_trait_id: ConcreteTraitId

impls: Vec<ImplId>

FreeVariable

Fields

impl_id: ImplId

var: InferenceVar

WillNotInfer(ConcreteTraitId)

NegativeImplWithUnresolvedGenericArgs

Fields

impl_id: ImplId

ty: TypeId

Implementations

impl Ambiguity

pub fn format(&self, db: &(dyn SemanticGroup + 'static)) -> String

Trait Implementations

impl Clone for Ambiguity

fn clone(&self) -> Ambiguity

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Ambiguity

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

Formats the value using the given formatter.

impl Hash for Ambiguity

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 Ambiguity

fn eq(&self, other: &Ambiguity) -> 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<T: SemanticRewriter<ConcreteTraitId, Error> + SemanticRewriter<Vec<ImplId>, Error> + SemanticRewriter<ImplId, Error> + SemanticRewriter<TypeId, Error>, Error> SemanticObject<T, Error> for Ambiguity

fn default_rewrite(&mut self, rewriter: &mut T) -> Result<RewriteResult, Error>

impl<'a> SemanticRewriter<Ambiguity, NoError> for Inference<'a>

fn internal_rewrite( &mut self, value: &mut Ambiguity, ) -> Result<RewriteResult, NoError>

fn rewrite(&mut self, value: T) -> Result<T, Error>

impl Eq for Ambiguity

impl StructuralPartialEq for Ambiguity