RespValue

Enum RespValue 

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

RESP protocol value

Variants§

§

SimpleString(String)

Simple string: +OK\r\n

§

Error(String)

Error: -ERR message\r\n

§

Integer(i64)

Integer: :1000\r\n

§

BulkString(Bytes)

Bulk string: $6\r\nfoobar\r\n

§

Null

Null bulk string: $-1\r\n

§

Array(Vec<RespValue>)

Array: *2\r\n$3\r\nfoo\r\n$3\r\nbar\r\n

Implementations§

Source§

impl RespValue

Source

pub fn as_string(&self) -> RedisResult<String>

Convert to a string if possible

§Errors

Returns an error if the value cannot be converted to a string.

Source

pub fn as_int(&self) -> RedisResult<i64>

Convert to an integer if possible

§Errors

Returns an error if the value cannot be converted to an integer.

Source

pub fn as_bytes(&self) -> RedisResult<Bytes>

Convert to bytes if possible

§Errors

Returns an error if the value cannot be converted to bytes.

Source

pub fn as_array(&self) -> RedisResult<Vec<Self>>

Convert to an array if possible

§Errors

Returns an error if the value cannot be converted to an array.

Source

pub const fn is_null(&self) -> bool

Check if this is a null value

Source

pub const fn is_error(&self) -> bool

Check if this is an error

Source

pub fn as_bool(&self) -> RedisResult<bool>

Convert to a boolean if possible

§Errors

Returns an error if the value cannot be converted to a boolean.

Source

pub fn into_error(self) -> Option<String>

Extract error message if this is an error

Trait Implementations§

Source§

impl Clone for RespValue

Source§

fn clone(&self) -> RespValue

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for RespValue

Source§

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

Formats the value using the given formatter. Read more
Source§

impl From<&str> for RespValue

Source§

fn from(s: &str) -> Self

Converts to this type from the input type.
Source§

impl From<Bytes> for RespValue

Source§

fn from(b: Bytes) -> Self

Converts to this type from the input type.
Source§

impl From<Resp3Value> for RespValue

Convert RESP3 value to RESP2 value for backward compatibility

Source§

fn from(value: Resp3Value) -> Self

Converts to this type from the input type.
Source§

impl From<RespValue> for Resp3Value

Convert RESP2 value to RESP3 value

Source§

fn from(value: RespValue) -> Self

Converts to this type from the input type.
Source§

impl From<String> for RespValue

Source§

fn from(s: String) -> Self

Converts to this type from the input type.
Source§

impl From<Vec<u8>> for RespValue

Source§

fn from(b: Vec<u8>) -> Self

Converts to this type from the input type.
Source§

impl From<i64> for RespValue

Source§

fn from(i: i64) -> Self

Converts to this type from the input type.
Source§

impl PartialEq for RespValue

Source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl TryFrom<RespValue> for Option<String>

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl TryFrom<RespValue> for String

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl TryFrom<RespValue> for Vec<String>

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl TryFrom<RespValue> for Vec<i64>

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl TryFrom<RespValue> for bool

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl TryFrom<RespValue> for i64

Source§

type Error = RedisError

The type returned in the event of a conversion error.
Source§

fn try_from(value: RespValue) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl Eq for RespValue

Source§

impl StructuralPartialEq for RespValue

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

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
Source§

impl<T> From<T> for T

Source§

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

Source§

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> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

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