Enum wasmer::ExportError

source · [−]

pub enum ExportError {
    IncompatibleType,
    Missing(String),
}

Expand description

The ExportError can happen when trying to get a specific export Extern from the Instance exports.

Examples

Incompatible export type

// This results with an error: `ExportError::IncompatibleType`.
let export = instance.exports.get_function("glob").unwrap();

Missing export

// This results with an error: `ExportError::Missing`.
let export = instance.exports.get_function("unknown").unwrap();

Variants

`IncompatibleType`

An error than occurs when the exported type and the expected type are incompatible.

`Missing(String)`

This error arises when an export is missing

Trait Implementations

source

impl Debug for ExportError

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl Display for ExportError

source

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl Error for ExportError

1.30.0 · source

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more

source

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred. Read more

1.0.0 · source

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

source

impl From<ExportError> for HostEnvInitError

source

fn from(other: ExportError) -> Self

Performs the conversion.

Auto Trait Implementations

impl RefUnwindSafe for ExportError

impl Send for ExportError

impl Sync for ExportError

impl Unpin for ExportError

impl UnwindSafe for ExportError

Blanket Implementations

source

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

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

source

pub fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

source

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
 W: DeserializeWith<F, T, D>,
 D: Fallible + ?Sized,
 F: ?Sized,

source

pub fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

source

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T> Instrument for T

source

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

source

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

source

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

source

impl<T> Pointable for T

source

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

source

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

source

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

source

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

source

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

source

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

source

impl<T> ToString for T where
T: Display + ?Sized,

source

pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

source

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

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

Performs the conversion.

source

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

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

Performs the conversion.

source

impl<T> WithSubscriber for T

source

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

source

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Enum wasmer::ExportError

Variants

IncompatibleType

Missing(String)

Trait Implementations

impl Debug for ExportError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Display for ExportError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

impl Error for ExportError

fn source(&self) -> Option<&(dyn Error + 'static)>

fn backtrace(&self) -> Option<&Backtrace>

fn description(&self) -> &str

fn cause(&self) -> Option<&dyn Error>

impl From<ExportError> for HostEnvInitError

fn from(other: ExportError) -> Self

Auto Trait Implementations

impl RefUnwindSafe for ExportError

impl Send for ExportError

impl Sync for ExportError

impl Unpin for ExportError

impl UnwindSafe for ExportError

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

pub fn pointer_metadata( &<T as ArchivePointee>::ArchivedMetadata) -> <T as Pointee>::Metadata

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

pub fn borrow(&self) -> &T

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

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

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

pub fn deserialize( &self, deserializer: &mut D) -> Result<With<T, W>, <D as Fallible>::Error>

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T> Pointee for T

type Metadata = ()

impl<T> ToString for T where T: Display + ?Sized,

pub default fn to_string(&self) -> String

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

type Error = Infallible

pub 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

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

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

`IncompatibleType`

`Missing(String)`

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

pub fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

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

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

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,

pub fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

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

impl<T> ToString for T where
T: Display + ?Sized,

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

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

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,