Struct InferenceResult

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pub struct InferenceResult {
    pub mutated_bindings_in_closure: FxHashSet<BindingId>,
    /* private fields */
}
Expand description

The result of type inference: A mapping from expressions and patterns to types.

When you add a field that stores types (including Substitution and the like), don’t forget resolve_completely()’ing them in InferenceContext::resolve_all(). Inference variables must not appear in the final inference result.

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§mutated_bindings_in_closure: FxHashSet<BindingId>

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impl InferenceResult

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pub fn method_resolution( &self, expr: ExprId, ) -> Option<(FunctionId, Substitution)>

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pub fn field_resolution( &self, expr: ExprId, ) -> Option<Either<FieldId, TupleFieldId>>

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pub fn variant_resolution_for_expr(&self, id: ExprId) -> Option<VariantId>

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pub fn variant_resolution_for_pat(&self, id: PatId) -> Option<VariantId>

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pub fn variant_resolution_for_expr_or_pat( &self, id: ExprOrPatId, ) -> Option<VariantId>

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pub fn assoc_resolutions_for_expr( &self, id: ExprId, ) -> Option<(AssocItemId, Substitution)>

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pub fn assoc_resolutions_for_pat( &self, id: PatId, ) -> Option<(AssocItemId, Substitution)>

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pub fn assoc_resolutions_for_expr_or_pat( &self, id: ExprOrPatId, ) -> Option<(AssocItemId, Substitution)>

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pub fn type_mismatch_for_expr(&self, expr: ExprId) -> Option<&TypeMismatch>

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pub fn type_mismatch_for_pat(&self, pat: PatId) -> Option<&TypeMismatch>

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pub fn type_mismatches( &self, ) -> impl Iterator<Item = (ExprOrPatId, &TypeMismatch)>

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pub fn expr_type_mismatches( &self, ) -> impl Iterator<Item = (ExprId, &TypeMismatch)>

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pub fn closure_info(&self, closure: &ClosureId) -> &(Vec<CapturedItem>, FnTrait)

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pub fn type_of_expr_or_pat(&self, id: ExprOrPatId) -> Option<&Ty>

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pub fn type_of_expr_with_adjust(&self, id: ExprId) -> Option<&Ty>

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pub fn type_of_pat_with_adjust(&self, id: PatId) -> Option<&Ty>

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pub fn is_erroneous(&self) -> bool

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pub fn diagnostics(&self) -> &[InferenceDiagnostic]

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pub fn tuple_field_access_type(&self, id: TupleId) -> &Substitution

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pub fn pat_adjustment(&self, id: PatId) -> Option<&[Ty]>

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pub fn expr_adjustment(&self, id: ExprId) -> Option<&[Adjustment]>

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pub fn binding_mode(&self, id: PatId) -> Option<BindingMode>

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impl Clone for InferenceResult

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fn clone(&self) -> InferenceResult

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for InferenceResult

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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 Default for InferenceResult

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fn default() -> InferenceResult

Returns the “default value” for a type. Read more
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impl Index<ExprOrPatId> for InferenceResult

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type Output = Ty<Interner>

The returned type after indexing.
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fn index(&self, id: ExprOrPatId) -> &Ty

Performs the indexing (container[index]) operation. Read more
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impl Index<Idx<Binding>> for InferenceResult

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type Output = Ty<Interner>

The returned type after indexing.
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fn index(&self, b: BindingId) -> &Ty

Performs the indexing (container[index]) operation. Read more
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impl Index<Idx<Expr>> for InferenceResult

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type Output = Ty<Interner>

The returned type after indexing.
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fn index(&self, expr: ExprId) -> &Ty

Performs the indexing (container[index]) operation. Read more
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impl Index<Idx<Pat>> for InferenceResult

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type Output = Ty<Interner>

The returned type after indexing.
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fn index(&self, pat: PatId) -> &Ty

Performs the indexing (container[index]) operation. Read more
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impl PartialEq for InferenceResult

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fn eq(&self, other: &InferenceResult) -> 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 Eq for InferenceResult

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impl StructuralPartialEq for InferenceResult

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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<T> Cast for T

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fn cast<U>(self, interner: <U as HasInterner>::Interner) -> U
where Self: CastTo<U>, U: HasInterner,

Cast a value to type U using CastTo.
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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

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

Checks if this value is equivalent to the given key. Read more
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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> IntoBox<dyn Any> for T
where T: Any,

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fn into_box(self) -> Box<dyn Any>

Convert self into the appropriate boxed form.
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impl<T> IntoBox<dyn Any + Send> for T
where T: Any + Send,

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fn into_box(self) -> Box<dyn Any + Send>

Convert self into the appropriate boxed form.
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impl<T> IntoBox<dyn Any + Sync + Send> for T
where T: Any + Send + Sync,

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fn into_box(self) -> Box<dyn Any + Sync + Send>

Convert self into the appropriate boxed form.
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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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
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impl<'a, T> Captures<'a> for T
where T: ?Sized,