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InferenceDiagnostic

hir_ty

Enum InferenceDiagnostic 

Source 
pub enum InferenceDiagnostic {

Show 43 variants    NoSuchField {
        field: ExprOrPatIdPacked,
        private: Option<LocalFieldId>,
        variant: VariantId,
    },
    MismatchedArrayPatLen {
        pat: PatId,
        expected: u128,
        found: u128,
        has_rest: bool,
    },
    ArrayPatternWithoutFixedLength {
        pat: PatId,
    },
    ExpectedArrayOrSlicePat {
        pat: PatId,
        found: StoredTy,
    },
    InvalidRangePatType {
        pat: PatId,
    },
    DuplicateField {
        field: ExprOrPatIdPacked,
        variant: VariantId,
    },
    PrivateField {
        expr: ExprId,
        field: FieldId,
    },
    PrivateAssocItem {
        id: ExprOrPatIdPacked,
        item: AssocItemId,
    },
    UnresolvedField {
        expr: ExprId,
        receiver: StoredTy,
        name: Name,
        method_with_same_name_exists: bool,
    },
    UnresolvedMethodCall {
        expr: ExprId,
        receiver: StoredTy,
        name: Name,
        field_with_same_name: Option<StoredTy>,
        assoc_func_with_same_name: Option<FunctionId>,
    },
    UnresolvedAssocItem {
        id: ExprOrPatIdPacked,
    },
    UnresolvedIdent {
        id: ExprOrPatIdPacked,
    },
    BreakOutsideOfLoop {
        expr: ExprId,
        is_break: bool,
        bad_value_break: bool,
    },
    NonExhaustiveRecordExpr {
        expr: ExprId,
    },
    NonExhaustiveRecordPat {
        pat: PatId,
        variant: VariantId,
    },
    UnionPatMustHaveExactlyOneField {
        pat: PatId,
    },
    UnionPatHasRest {
        pat: PatId,
    },
    FunctionalRecordUpdateOnNonStruct {
        base_expr: ExprId,
    },
    MismatchedArgCount {
        call_expr: ExprId,
        expected: usize,
        found: usize,
    },
    MismatchedTupleStructPatArgCount {
        pat: PatId,
        expected: usize,
        found: usize,
    },
    ExpectedFunction {
        call_expr: ExprId,
        found: StoredTy,
    },
    CannotBeDereferenced {
        expr: ExprId,
        found: StoredTy,
    },
    MutRefInImmRefPat {
        pat: PatId,
    },
    CannotImplicitlyDerefTraitObject {
        pat: PatId,
        found: StoredTy,
    },
    CannotIndexInto {
        expr: ExprId,
        found: StoredTy,
    },
    TypedHole {
        expr: ExprId,
        expected: StoredTy,
    },
    CastToUnsized {
        expr: ExprId,
        cast_ty: StoredTy,
    },
    InvalidCast {
        expr: ExprId,
        error: CastError,
        expr_ty: StoredTy,
        cast_ty: StoredTy,
    },
    TyDiagnostic {
        source: InferenceTyDiagnosticSource,
        diag: TyLoweringDiagnostic,
    },
    PathDiagnostic {
        node: ExprOrPatIdPacked,
        diag: PathLoweringDiagnostic,
    },
    MethodCallIncorrectGenericsLen {
        expr: ExprId,
        provided_count: u32,
        expected_count: u32,
        kind: IncorrectGenericsLenKind,
        def: GenericDefId,
    },
    MethodCallIllegalSizedBound {
        call_expr: ExprId,
    },
    MethodCallIncorrectGenericsOrder {
        expr: ExprId,
        param_id: GenericParamId,
        arg_idx: u32,
        has_self_arg: bool,
    },
    InvalidLhsOfAssignment {
        lhs: ExprId,
    },
    TypeMustBeKnown {
        at_point: Span,
        top_term: Option<StoredGenericArg>,
    },
    UnionExprMustHaveExactlyOneField {
        expr: ExprId,
    },
    TypeMismatch {
        node: ExprOrPatIdPacked,
        expected: StoredTy,
        found: StoredTy,
    },
    SolverDiagnostic(SolverDiagnostic),
    ExplicitDropMethodUse {
        kind: ExplicitDropMethodUseKind,
    },
    MutableRefBinding {
        pat: PatId,
    },
    YieldOutsideCoroutine {
        expr: ExprId,
    },
    ReturnOutsideFunction {
        expr: ExprId,
        kind: ReturnKind,
    },
    RecordMissingFields {
        record: ExprOrPatId,
        variant: VariantId,
        missed_fields: Vec<LocalFieldId>,
    },

}

Variants§

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NoSuchField

Fields

§field: ExprOrPatIdPacked
§private: Option<LocalFieldId>
§variant: VariantId
§

MismatchedArrayPatLen

Fields

§pat: PatId
§expected: u128
§found: u128
§has_rest: bool
§

ArrayPatternWithoutFixedLength

Fields

§pat: PatId
§

ExpectedArrayOrSlicePat

Fields

§pat: PatId
§found: StoredTy
§

InvalidRangePatType

Fields

§pat: PatId
§

DuplicateField

Fields

§field: ExprOrPatIdPacked
§variant: VariantId
§

PrivateField

Fields

§expr: ExprId
§field: FieldId
§

PrivateAssocItem

Fields

§id: ExprOrPatIdPacked
§item: AssocItemId
§

UnresolvedField

Fields

§expr: ExprId
§receiver: StoredTy
§name: Name
§method_with_same_name_exists: bool
§

UnresolvedMethodCall

Fields

§expr: ExprId
§receiver: StoredTy
§name: Name
§field_with_same_name: Option<StoredTy>

Contains the type the field resolves to

§assoc_func_with_same_name: Option<FunctionId>
§

UnresolvedAssocItem

Fields

§id: ExprOrPatIdPacked
§

UnresolvedIdent

Fields

§id: ExprOrPatIdPacked
§

BreakOutsideOfLoop

Fields

§expr: ExprId
§is_break: bool
§bad_value_break: bool
§

NonExhaustiveRecordExpr

Fields

§expr: ExprId
§

NonExhaustiveRecordPat

Fields

§pat: PatId
§variant: VariantId
§

UnionPatMustHaveExactlyOneField

Fields

§pat: PatId
§

UnionPatHasRest

Fields

§pat: PatId
§

FunctionalRecordUpdateOnNonStruct

Fields

§base_expr: ExprId
§

MismatchedArgCount

Fields

§call_expr: ExprId
§expected: usize
§found: usize
§

MismatchedTupleStructPatArgCount

Fields

§pat: PatId
§expected: usize
§found: usize
§

ExpectedFunction

Fields

§call_expr: ExprId
§found: StoredTy
§

CannotBeDereferenced

Fields

§expr: ExprId
§found: StoredTy
§

MutRefInImmRefPat

Fields

§pat: PatId
§

CannotImplicitlyDerefTraitObject

Fields

§pat: PatId
§found: StoredTy
§

CannotIndexInto

Fields

§expr: ExprId
§found: StoredTy
§

TypedHole

Fields

§expr: ExprId
§expected: StoredTy
§

CastToUnsized

Fields

§expr: ExprId
§cast_ty: StoredTy
§

InvalidCast

Fields

§expr: ExprId
§error: CastError
§expr_ty: StoredTy
§cast_ty: StoredTy
§

TyDiagnostic

§

PathDiagnostic

Fields

§node: ExprOrPatIdPacked
§diag: PathLoweringDiagnostic
§

MethodCallIncorrectGenericsLen

Fields

§expr: ExprId
§provided_count: u32
§expected_count: u32
§kind: IncorrectGenericsLenKind
§def: GenericDefId
§

MethodCallIllegalSizedBound

Fields

§call_expr: ExprId
§

MethodCallIncorrectGenericsOrder

Fields

§expr: ExprId
§param_id: GenericParamId
§arg_idx: u32
§has_self_arg: bool

Whether the GenericArgs contains a Self arg.

§

InvalidLhsOfAssignment

Fields

§lhs: ExprId
§

TypeMustBeKnown

Fields

§at_point: Span
§top_term: Option<StoredGenericArg>
§

UnionExprMustHaveExactlyOneField

Fields

§expr: ExprId
§

TypeMismatch

Fields

§node: ExprOrPatIdPacked
§expected: StoredTy
§found: StoredTy
§

SolverDiagnostic(SolverDiagnostic)

§

ExplicitDropMethodUse

§

MutableRefBinding

Fields

§pat: PatId
§

YieldOutsideCoroutine

Fields

§expr: ExprId
§

ReturnOutsideFunction

Fields

§expr: ExprId
§kind: ReturnKind
§

RecordMissingFields

Fields

§record: ExprOrPatId
§variant: VariantId
§missed_fields: Vec<LocalFieldId>

Trait Implementations§

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impl Clone for InferenceDiagnostic

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fn clone(&self) -> InferenceDiagnostic

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

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

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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 PartialEq for InferenceDiagnostic

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fn eq(&self, other: &InferenceDiagnostic) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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> TypeFoldable<DbInterner<'db>> for InferenceDiagnostic

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fn try_fold_with<__F: FallibleTypeFolder<DbInterner<'db>>>( self, __folder: &mut __F, ) -> Result<Self, __F::Error>

The entry point for folding. To fold a value t with a folder f call: t.try_fold_with(f). Read more
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fn fold_with<__F: TypeFolder<DbInterner<'db>>>(self, __folder: &mut __F) -> Self

The entry point for folding. To fold a value t with a folder f call: t.fold_with(f). Read more
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impl<'db> TypeVisitable<DbInterner<'db>> for InferenceDiagnostic

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fn visit_with<__V: TypeVisitor<DbInterner<'db>>>( &self, __visitor: &mut __V, ) -> __V::Result

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v). Read more
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impl Eq for InferenceDiagnostic

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impl StructuralPartialEq for InferenceDiagnostic

Auto Trait Implementations§

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> 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<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 + Send + Sync> for T
where T: Any + Send + Sync,

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

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> Lookup<T> for T

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fn into_owned(self) -> T

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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> TypeVisitableExt<I> for T
where I: Interner, T: TypeVisitable<I>,

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fn has_type_flags(&self, flags: TypeFlags) -> bool

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fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool

Returns true if self has any late-bound regions that are either bound by binder or bound by some binder outside of binder. If binder is ty::INNERMOST, this indicates whether there are any late-bound regions that appear free.
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fn error_reported(&self) -> Result<(), <I as Interner>::ErrorGuaranteed>

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fn non_region_error_reported( &self, ) -> Result<(), <I as Interner>::ErrorGuaranteed>

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fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool

Returns true if this type has any regions that escape binder (and hence are not bound by it).
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fn has_escaping_bound_vars(&self) -> bool

Returns true if this type has regions that are not a part of the type. For example, given a for<'a> fn(&'a i32) this function returns false, while given a fn(&'a i32) it returns true. The latter can occur when traversing through the former. Read more
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fn has_aliases(&self) -> bool

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fn has_opaque_types(&self) -> bool

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fn has_coroutines(&self) -> bool

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fn references_error(&self) -> bool

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fn has_non_region_param(&self) -> bool

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fn has_regions(&self) -> bool

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fn has_infer_regions(&self) -> bool

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fn has_infer_types(&self) -> bool

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fn has_non_region_infer(&self) -> bool

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fn has_infer(&self) -> bool

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fn has_placeholders(&self) -> bool

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fn has_non_region_placeholders(&self) -> bool

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fn has_param(&self) -> bool

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fn has_free_regions(&self) -> bool

“Free” regions in this context means that it has any region that is not (a) erased or (b) late-bound.
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fn has_erased_regions(&self) -> bool

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fn has_erasable_regions(&self) -> bool

True if there are any un-erased free regions.
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fn is_global(&self) -> bool

Indicates whether this value references only ‘global’ generic parameters that are the same regardless of what fn we are in. This is used for caching.
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fn has_bound_regions(&self) -> bool

True if there are any late-bound regions
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fn has_non_region_bound_vars(&self) -> bool

True if there are any late-bound non-region variables
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fn has_bound_vars(&self) -> bool

True if there are any bound variables
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fn still_further_specializable(&self) -> bool

Indicates whether this value still has parameters/placeholders/inference variables which could be replaced later, in a way that would change the results of impl specialization.
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fn has_non_region_error(&self) -> bool

True if a type or const error is reachable
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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