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TypedBackendMessage

pg_proto::middleware

Enum TypedBackendMessage 

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pub enum TypedBackendMessage<ProtocolMessage> {
    Protocol(ProtocolMessage),
    Asynchronous(AsynchronousBackendMessage),
}
Expand description

Any server message legal in a phase, including non-advancing asynchronous traffic.

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Protocol(ProtocolMessage)

A message represented by a transition in the current grammar phase.

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Asynchronous(AsynchronousBackendMessage)

An asynchronous message which leaves the current grammar phase unchanged.

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impl<ProtocolMessage> AsRef<BackendMessage> for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: AsRef<BackendMessage>,

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fn as_ref(&self) -> &BackendMessage

Converts this type into a shared reference of the (usually inferred) input type.
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impl<ProtocolMessage> From<TypedBackendMessage<ProtocolMessage>> for BackendMessage
where ProtocolMessage: Into<Self>,

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fn from(message: TypedBackendMessage<ProtocolMessage>) -> Self

Converts to this type from the input type.
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impl<ProtocolMessage> TryFrom<BackendMessage> for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: TryFrom<BackendMessage, Error = BackendMessage>,

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type Error = BackendMessage

The type returned in the event of a conversion error.
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fn try_from(message: BackendMessage) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

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impl<ProtocolMessage> !Freeze for TypedBackendMessage<ProtocolMessage>

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impl<ProtocolMessage> RefUnwindSafe for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: RefUnwindSafe,

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impl<ProtocolMessage> Send for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: Send,

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impl<ProtocolMessage> Sync for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: Sync,

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impl<ProtocolMessage> Unpin for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: Unpin,

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impl<ProtocolMessage> UnsafeUnpin for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: UnsafeUnpin,

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impl<ProtocolMessage> UnwindSafe for TypedBackendMessage<ProtocolMessage>
where ProtocolMessage: UnwindSafe,

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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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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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<Handler> MessageMiddlewareExt for Handler

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fn then<Next>(self, next: Next) -> Then<Self, Next>

Runs this value followed by next whenever both implement middleware for the intercepted message and state types.
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impl<T> Same for T

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type Output = T

Should always be Self
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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.