Enum rustc_hir_typeck::cast::CastError

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pub enum CastError {

Show 15 variants    ErrorGuaranteed(ErrorGuaranteed),
    CastToBool,
    CastToChar,
    DifferingKinds,
    SizedUnsizedCast,
    IllegalCast,
    NeedDeref,
    NeedViaPtr,
    NeedViaThinPtr,
    NeedViaInt,
    NonScalar,
    UnknownExprPtrKind,
    UnknownCastPtrKind,
    IntToFatCast(Option<&'static str>),
    ForeignNonExhaustiveAdt,

}

Variants§

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ErrorGuaranteed(ErrorGuaranteed)

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CastToBool

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CastToChar

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DifferingKinds

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SizedUnsizedCast

Cast of thin to fat raw ptr (e.g., *const () as *const [u8]).

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IllegalCast

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NeedDeref

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NeedViaPtr

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NeedViaThinPtr

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NeedViaInt

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NonScalar

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UnknownExprPtrKind

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UnknownCastPtrKind

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IntToFatCast(Option<&'static str>)

Cast of int to (possibly) fat raw pointer.

Argument is the specific name of the metadata in plain words, such as “a vtable” or “a length”. If this argument is None, then the metadata is unknown, for example, when we’re typechecking a type parameter with a ?Sized bound.

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ForeignNonExhaustiveAdt

Trait Implementations§

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impl Clone for CastError

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fn clone(&self) -> CastError

Returns a copy 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 CastError

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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 From<ErrorGuaranteed> for CastError

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fn from(err: ErrorGuaranteed) -> Self

Converts to this type from the input type.
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impl Copy for CastError

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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> 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.

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: 24 bytes

Size for each variant:

  • ErrorGuaranteed: 0 bytes
  • CastToBool: 0 bytes
  • CastToChar: 0 bytes
  • DifferingKinds: 0 bytes
  • SizedUnsizedCast: 0 bytes
  • IllegalCast: 0 bytes
  • NeedDeref: 0 bytes
  • NeedViaPtr: 0 bytes
  • NeedViaThinPtr: 0 bytes
  • NeedViaInt: 0 bytes
  • NonScalar: 0 bytes
  • UnknownExprPtrKind: 0 bytes
  • UnknownCastPtrKind: 0 bytes
  • IntToFatCast: 16 bytes
  • ForeignNonExhaustiveAdt: 0 bytes