InferenceData

Struct InferenceData 

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pub struct InferenceData<'db> {
    pub inference_id: InferenceId<'db>,
    pub type_assignment: OrderedHashMap<LocalTypeVarId, TypeId<'db>>,
    pub const_assignment: OrderedHashMap<LocalConstVarId, ConstValueId<'db>>,
    pub impl_assignment: OrderedHashMap<LocalImplVarId, ImplId<'db>>,
    pub negative_impl_assignment: OrderedHashMap<LocalNegativeImplVarId, NegativeImplId<'db>>,
    pub impl_vars_trait_item_mappings: HashMap<LocalImplVarId, ImplVarTraitItemMappings<'db>>,
    pub type_vars: Vec<TypeVar<'db>>,
    pub const_vars: Vec<ConstVar<'db>>,
    pub impl_vars: Vec<ImplVar<'db>>,
    pub negative_impl_vars: Vec<NegativeImplVar<'db>>,
    pub stable_ptrs: HashMap<InferenceVar, SyntaxStablePtrId<'db>>,
    pub impl_type_bounds: Arc<BTreeMap<ImplTypeById<'db>, TypeId<'db>>>,
    /* private fields */
}
Expand description

State of inference.

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§inference_id: InferenceId<'db>§type_assignment: OrderedHashMap<LocalTypeVarId, TypeId<'db>>

Current inferred assignment for type variables.

§const_assignment: OrderedHashMap<LocalConstVarId, ConstValueId<'db>>

Current inferred assignment for const variables.

§impl_assignment: OrderedHashMap<LocalImplVarId, ImplId<'db>>

Current inferred assignment for impl variables.

§negative_impl_assignment: OrderedHashMap<LocalNegativeImplVarId, NegativeImplId<'db>>

Current inferred assignment for negative impl variables.

§impl_vars_trait_item_mappings: HashMap<LocalImplVarId, ImplVarTraitItemMappings<'db>>

Unsolved impl variables mapping to a maps of trait items to a corresponding item variable. Upon solution of the trait conforms the fully known item to the variable.

§type_vars: Vec<TypeVar<'db>>

Type variables.

§const_vars: Vec<ConstVar<'db>>

Const variables.

§impl_vars: Vec<ImplVar<'db>>

Impl variables.

§negative_impl_vars: Vec<NegativeImplVar<'db>>

Negative impl variables.

§stable_ptrs: HashMap<InferenceVar, SyntaxStablePtrId<'db>>

Mapping from variables to stable pointers, if exist.

§impl_type_bounds: Arc<BTreeMap<ImplTypeById<'db>, TypeId<'db>>>

Mapping from impl types to type variables.

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impl<'db> InferenceData<'db>

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pub fn new(inference_id: InferenceId<'db>) -> Self

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pub fn inference<'r>(&'r mut self, db: &'db dyn Database) -> Inference<'db, 'r>

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pub fn clone_with_inference_id( &self, db: &'db dyn Database, inference_id: InferenceId<'db>, ) -> InferenceData<'db>

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pub fn temporary_clone(&self) -> InferenceData<'db>

Trait Implementations§

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impl<'db> Debug for InferenceData<'db>

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

Formats the value using the given formatter. Read more
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impl<'db> DebugWithDb<'db> for InferenceData<'db>

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type Db = dyn Database

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

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fn debug<'me>(&'me self, db: &'db Self::Db) -> DebugWith<'me, 'db, Self::Db>
where Self: Sized + 'me,

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fn into_debug<'me>(self, db: &'db Self::Db) -> DebugWith<'me, 'db, Self::Db>
where Self: Sized + 'me,

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impl<'db> PartialEq for InferenceData<'db>

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fn eq(&self, other: &InferenceData<'db>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'db> Update for InferenceData<'db>

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unsafe fn maybe_update(old_pointer_: *mut Self, new_value_: Self) -> bool

Returns Read more
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impl<'db> Eq for InferenceData<'db>

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impl<'db> StructuralPartialEq for InferenceData<'db>

Auto Trait Implementations§

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impl<'db> Freeze for InferenceData<'db>

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impl<'db> RefUnwindSafe for InferenceData<'db>

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impl<'db> Send for InferenceData<'db>

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impl<'db> Sync for InferenceData<'db>

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impl<'db> Unpin for InferenceData<'db>

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impl<'db> UnwindSafe for InferenceData<'db>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<'db, T> DebugDbUpcast<'db, T> for T
where T: ?Sized,

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T0, T1, E, TRewriter> SemanticRewriter<(T0, T1), E> for TRewriter
where TRewriter: SemanticRewriter<T0, E> + SemanticRewriter<T1, E>,

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fn internal_rewrite(&mut self, value: &mut (T0, T1)) -> Result<RewriteResult, E>

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

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impl<T, E, TRewriter> SemanticRewriter<Box<T>, E> for TRewriter
where TRewriter: SemanticRewriter<T, E>,

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fn internal_rewrite(&mut self, value: &mut Box<T>) -> Result<RewriteResult, E>

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

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impl<T, E, TRewriter> SemanticRewriter<Deque<T>, E> for TRewriter
where TRewriter: SemanticRewriter<T, E>,

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fn internal_rewrite(&mut self, value: &mut Deque<T>) -> Result<RewriteResult, E>

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

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impl<T, E, TRewriter> SemanticRewriter<Option<T>, E> for TRewriter
where TRewriter: SemanticRewriter<T, E>,

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fn internal_rewrite( &mut self, value: &mut Option<T>, ) -> Result<RewriteResult, E>

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

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impl<'a, K, V, E, TRewriter> SemanticRewriter<OrderedHashMap<K, V>, E> for TRewriter
where K: Hash + Eq + LanguageElementId<'a>, V: Clone, TRewriter: SemanticRewriter<V, E>,

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fn internal_rewrite( &mut self, value: &mut OrderedHashMap<K, V>, ) -> Result<RewriteResult, E>

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

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impl<T, E, TRewriter, E2> SemanticRewriter<Result<T, E2>, E> for TRewriter
where TRewriter: SemanticRewriter<T, E>,

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fn internal_rewrite( &mut self, value: &mut Result<T, E2>, ) -> Result<RewriteResult, E>

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

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impl<T, E, TRewriter> SemanticRewriter<Vec<T>, E> for TRewriter
where T: Clone, TRewriter: SemanticRewriter<T, E>,

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fn internal_rewrite(&mut self, value: &mut Vec<T>) -> Result<RewriteResult, E>

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

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more