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RespValue

Enum RespValue 

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pub enum RespValue {
    Nil,
    Array(Vec<RespValue>),
    BulkString(Vec<u8>),
    Error(String),
    Integer(i64),
    SimpleString(String),
}
Expand description

A single RESP value, this owns the data that is read/to-be written to Redis.

It is cloneable to allow multiple copies to be delivered in certain circumstances, e.g. multiple subscribers to the same topic.

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Nil

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Array(Vec<RespValue>)

Zero, one or more other RespValues.

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BulkString(Vec<u8>)

A bulk string. In Redis terminology a string is a byte-array, so this is stored as a vector of u8s to allow clients to interpret the bytes as appropriate.

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Error(String)

An error from the Redis server

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Integer(i64)

Redis documentation defines an integer as being a signed 64-bit integer: https://redis.io/topics/protocol#resp-integers

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SimpleString(String)

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impl RespValue

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pub fn append<T>(self, other: impl IntoIterator<Item = T>) -> Self
where T: Into<RespValue>,

Convenience function for building dynamic Redis commands with variable numbers of arguments, e.g. RPUSH

This will panic if called for anything other than arrays

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pub fn push<T: Into<RespValue>>(&mut self, item: T)

Push item to Resp array

This will panic if called for anything other than arrays

Trait Implementations§

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impl Clone for RespValue

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fn clone(&self) -> RespValue

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for RespValue

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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 Encoder<RespValue> for RespCodec

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type Error = Error

The type of encoding errors. Read more
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fn encode( &mut self, msg: RespValue, buf: &mut BytesMut, ) -> Result<(), Self::Error>

Encodes a frame into the buffer provided. Read more
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impl Eq for RespValue

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impl<'a> From<&'a String> for RespValue

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fn from(from: &'a String) -> RespValue

Converts to this type from the input type.
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impl<'a> From<&'a [u8]> for RespValue

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fn from(from: &'a [u8]) -> RespValue

Converts to this type from the input type.
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impl<'a> From<&'a str> for RespValue

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fn from(from: &'a str) -> RespValue

Converts to this type from the input type.
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impl<'a> From<Arc<str>> for RespValue

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fn from(from: Arc<str>) -> RespValue

Converts to this type from the input type.
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impl<'a> From<String> for RespValue

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fn from(from: String) -> RespValue

Converts to this type from the input type.
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impl<'a> From<Vec<u8>> for RespValue

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fn from(from: Vec<u8>) -> RespValue

Converts to this type from the input type.
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impl<'a> From<usize> for RespValue

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fn from(from: usize) -> RespValue

Converts to this type from the input type.
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impl FromResp for RespValue

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fn from_resp_int(resp: RespValue) -> Result<RespValue, Error>

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fn from_resp(resp: RespValue) -> Result<Self, Error>

Return a Result containing either Self or Error. Errors can occur due to either: a) the particular RespValue being incompatible with the required type, or b) a remote Redis error occuring.
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impl PartialEq for RespValue

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fn eq(&self, other: &RespValue) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for RespValue

Auto Trait Implementations§

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<T> ToOwned for T
where T: Clone,

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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<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.