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AnyMessageRef

Struct AnyMessageRef 

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pub struct AnyMessageRef<'a> { /* private fields */ }
Expand description

A reference to the message inside Envelope or AnyMessage.

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impl<'a> AnyMessageRef<'a>

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pub fn downcast_ref<M: Message>(&self) -> Option<&'a M>

Methods from Deref<Target = AnyMessage>§

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pub fn as_ref(&self) -> AnyMessageRef<'_>

Returns AnyMessageRef that borrows the message.

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pub fn is<M: Message>(&self) -> bool

Checks if the message is of a specific type.

Note: it returns true if M is AnyMessage.

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pub fn downcast_ref<M: Message>(&self) -> Option<&M>

Tries to downcast the message to a reference to the concrete type.

Note: it returns Some(&self) if M is AnyMessage.

Trait Implementations§

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impl Debug for AnyMessageRef<'_>

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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 Deref for AnyMessageRef<'_>

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type Target = AnyMessage

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl Serialize for AnyMessageRef<'_>

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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

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impl<'a> Freeze for AnyMessageRef<'a>

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impl<'a> RefUnwindSafe for AnyMessageRef<'a>

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impl<'a> !Send for AnyMessageRef<'a>

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impl<'a> !Sync for AnyMessageRef<'a>

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impl<'a> Unpin for AnyMessageRef<'a>

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impl<'a> UnsafeUnpin for AnyMessageRef<'a>

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impl<'a> UnwindSafe for AnyMessageRef<'a>

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> 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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> Serialize for T
where T: Serialize + ?Sized,

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fn erased_serialize(&self, serializer: &mut dyn Serializer) -> Result<(), Error>

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fn do_erased_serialize( &self, serializer: &mut dyn Serializer, ) -> Result<(), ErrorImpl>

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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<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