Enum redis_async::resp::RespValue

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

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.

Variants

Nil

Array(Vec<RespValue>)

Zero, one or more other RespValues.

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.

Error(String)

An error from the Redis server

Integer(i64)

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

SimpleString(String)

Implementations

impl RespValue

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

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

impl Clone for RespValue

fn clone(&self) -> RespValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RespValue

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

Formats the value using the given formatter.

impl Encoder<RespValue> for RespCodec

type Error = Error

The type of encoding errors.

fn encode( &mut self, msg: RespValue, buf: &mut BytesMut ) -> Result<(), Self::Error>

Encodes a frame into the buffer provided.

impl<'a> From<&'a [u8]> for RespValue

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

Converts to this type from the input type.

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

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

Converts to this type from the input type.

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

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

Converts to this type from the input type.

impl<'a> From<Arc<str>> for RespValue

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

Converts to this type from the input type.

impl<'a> From<String> for RespValue

fn from(from: String) -> RespValue

Converts to this type from the input type.

impl<'a> From<Vec<u8>> for RespValue

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

Converts to this type from the input type.

impl<'a> From<usize> for RespValue

fn from(from: usize) -> RespValue

Converts to this type from the input type.

impl FromResp for RespValue

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

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.

impl PartialEq for RespValue

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for RespValue

impl StructuralPartialEq for RespValue