Enum rustc_typeck::check::cast::CastError

source · [−]

pub enum CastError {
Show 14 variants    ErrorGuaranteed,
    CastToBool,
    CastToChar,
    DifferingKinds,
    SizedUnsizedCast,
    IllegalCast,
    NeedDeref,
    NeedViaPtr,
    NeedViaThinPtr,
    NeedViaInt,
    NonScalar,
    UnknownExprPtrKind,
    UnknownCastPtrKind,
    IntToFatCast(Option<&'static str>),
}

Variants

`ErrorGuaranteed`

`CastToBool`

`CastToChar`

`DifferingKinds`

`SizedUnsizedCast`

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

`IllegalCast`

`NeedDeref`

`NeedViaPtr`

`NeedViaThinPtr`

`NeedViaInt`

`NonScalar`

`UnknownExprPtrKind`

`UnknownCastPtrKind`

`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.

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

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl From<ErrorGuaranteed> for CastError

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fn from(_: ErrorGuaranteed) -> Self

Converts to this type from the input type.

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impl Copy for CastError

Auto Trait Implementations

impl RefUnwindSafe for CastError

impl Send for CastError

impl Sync for CastError

impl Unpin for CastError

impl UnwindSafe for CastError

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,

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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,

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 for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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

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

Enum rustc_typeck::check::cast::CastError

Variants

ErrorGuaranteed

CastToBool

CastToChar

DifferingKinds

SizedUnsizedCast

IllegalCast

NeedDeref

NeedViaPtr

NeedViaThinPtr

NeedViaInt

NonScalar

UnknownExprPtrKind

UnknownCastPtrKind

IntToFatCast(Option<&'static str>)

Trait Implementations

impl Clone for CastError

fn clone(&self) -> CastError

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

impl From<ErrorGuaranteed> for CastError

fn from(_: ErrorGuaranteed) -> Self

impl Copy for CastError

Auto Trait Implementations

impl RefUnwindSafe for CastError

impl Send for CastError

impl Sync for CastError

impl Unpin for CastError

impl UnwindSafe for CastError

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

Layout

`ErrorGuaranteed`

`CastToBool`

`CastToChar`

`DifferingKinds`

`SizedUnsizedCast`

`IllegalCast`

`NeedDeref`

`NeedViaPtr`

`NeedViaThinPtr`

`NeedViaInt`

`NonScalar`

`UnknownExprPtrKind`

`UnknownCastPtrKind`

`IntToFatCast(Option<&'static str>)`

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> ToOwned for T where
T: Clone,

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

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

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