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RErrorView

miniextendr_api::adapter_traits

Struct RErrorView

#[repr(C)]pub struct RErrorView {
    pub data: *mut c_void,
    pub vtable: *const RErrorVTable,
}

Expand description

Runtime view for objects implementing RError. Generated from source location line 264, column 11. Generated from source file miniextendr-api/src/adapter_traits.rs.

Combines a data pointer with a vtable pointer for method dispatch. Use try_from_sexp to create a view from an R external pointer.

Fields§

§data: *mut c_void

Pointer to the concrete object data.

§vtable: *const RErrorVTable

Pointer to the vtable for this trait.

Implementations§

impl RErrorView

pub unsafe fn try_from_sexp(sexp: SEXP) -> Option<Self>

Try to create a view from an R SEXP.

Returns Some(Self) if the object implements this trait, None otherwise.

§Safety

sexp must be a valid R external pointer (EXTPTRSXP)
Must be called on R’s main thread

pub unsafe fn from_sexp(sexp: SEXP) -> Self

Try to create a view, panicking with error message on failure.

§Safety

Same as try_from_sexp.

pub fn error_message(&self) -> String

Call error_message through the vtable.

pub fn error_chain(&self) -> Vec<String>

Call error_chain through the vtable.

pub fn error_chain_length(&self) -> i32

Call error_chain_length through the vtable.

Trait Implementations§

impl TraitView for RErrorView

const TAG: mx_tag = TAG_RERROR

The type tag for this trait. Read more

unsafe fn from_raw_parts(data: mut c_void, vtable: const c_void) -> Self

Create a view from raw data and vtable pointers. Read more

unsafe fn try_from_sexp(sexp: SEXP) -> Option<Self>

Try to create a view from an R SEXP. Read more

unsafe fn try_from_sexp_or_error( sexp: SEXP, trait_name: &str, ) -> Result<Self, String>

Try to create a view, returning an error message on failure. Read more

Auto Trait Implementations§

impl Freeze for RErrorView

impl RefUnwindSafe for RErrorView

impl !Send for RErrorView

impl !Sync for RErrorView

impl Unpin for RErrorView

impl UnsafeUnpin for RErrorView

impl UnwindSafe for RErrorView

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> SizeEq<Cell<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<ManuallyDrop<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<MaybeUninit<T>> for T

type CastFrom = CastSizedExact

impl<T> SizeEq<ReadOnly<T>> for T
where T: ?Sized,

type CastFrom = CastFromReadOnly

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

type CastFrom = IdCast

impl<T> SizeEq<Unalign<T>> for T

type CastFrom = CastFromWrapper

impl<T> SizeEq<UnsafeCell<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<Wrapping<T>> for T

type CastFrom = CastFromWrapper

impl<T> SizedTypeProperties for T

#[doc(hidden)]
const SIZE: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGNMENT: Alignment = _

🔬This is a nightly-only experimental API. (ptr_alignment_type)

#[doc(hidden)]
const IS_ZST: bool = _

🔬This is a nightly-only experimental API. (sized_type_properties)

true if this type requires no storage. false if its size is greater than zero. Read more

#[doc(hidden)]
const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const MAX_SLICE_LEN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

The largest safe length for a [Self]. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<T> InvariantsEq<ManuallyDrop<T>> for T
where T: ?Sized,

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

impl<T> InvariantsEq<Unalign<T>> for T

impl<T> InvariantsEq<Wrapping<T>> for T

impl<Src, Dst, A, SV, DV, R> MutationCompatible<Src, A, SV, DV, (BecauseRead, R)> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: Read<A, R> + ?Sized, Dst: Read<A, R> + ?Sized,

impl<Src, Dst, A, SV, DV> MutationCompatible<Src, A, SV, DV, BecauseInvariantsEq> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: TransmuteFrom<Dst, DV, SV> + ?Sized, Dst: TransmuteFrom<Src, SV, DV> + InvariantsEq<Src> + ?Sized,

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> TransmuteFrom<Cell<T>, Valid, Valid> for T
where T: ?Sized,

impl<T> TransmuteFrom<ManuallyDrop<T>, Valid, Valid> for T
where T: ?Sized,

impl<T> TransmuteFrom<ReadOnly<T>, Valid, Valid> for T
where T: ?Sized,

impl<Src, Dst> TransmuteFrom<Src, Initialized, Initialized> for Dst
where Src: ?Sized, Dst: ?Sized,

impl<Src, Dst, V> TransmuteFrom<Src, V, Uninit> for Dst
where V: Validity, Src: ?Sized, Dst: ?Sized,

impl<Src, Dst> TransmuteFrom<Src, Valid, Initialized> for Dst
where Src: IntoBytes + ?Sized, Dst: ?Sized,

impl<T> TransmuteFrom<Unalign<T>, Valid, Valid> for T

impl<T> TransmuteFrom<UnsafeCell<T>, Valid, Valid> for T
where T: ?Sized,

impl<T> TransmuteFrom<Wrapping<T>, Valid, Valid> for T

impl<Src, Dst, A, SV, DV, C, R> TransmuteFromPtr<Src, A, SV, DV, C, R> for Dst
where A: Aliasing, SV: Validity, DV: Validity, C: CastExact<Src, Dst>, Dst: TransmuteFrom<Src, SV, DV> + TryTransmuteFromPtr<Src, A, SV, DV, C, R> + ?Sized, Src: ?Sized,

impl<Src, Dst, SV, DV, A, C, R> TryTransmuteFromPtr<Src, A, SV, DV, C, (BecauseMutationCompatible, R)> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: TransmuteFrom<Dst, DV, SV> + ?Sized, Dst: MutationCompatible<Src, A, SV, DV, R> + ?Sized, C: CastExact<Src, Dst>,

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: 16 bytes