pub enum Value {
    Nil,
    Int(i64),
    Data(Vec<u8>),
    Bulk(Vec<Value>),
    Status(String),
    Okay,
}
Expand description

Internal low-level redis value enum.

Variants§

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Nil

A nil response from the server.

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Int(i64)

An integer response. Note that there are a few situations in which redis actually returns a string for an integer which is why this library generally treats integers and strings the same for all numeric responses.

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Data(Vec<u8>)

An arbitary binary data.

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Bulk(Vec<Value>)

A bulk response of more data. This is generally used by redis to express nested structures.

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Status(String)

A status response.

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Okay

A status response which represents the string “OK”.

Implementations§

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impl Value

Values are generally not used directly unless you are using the more low level functionality in the library. For the most part this is hidden with the help of the FromRedisValue trait.

While on the redis protocol there is an error type this is already separated at an early point so the value only holds the remaining types.

pub fn looks_like_cursor(&self) -> bool

Checks if the return value looks like it fulfils the cursor protocol. That means the result is a bulk item of length two with the first one being a cursor and the second a bulk response.

pub fn as_sequence(&self) -> Option<&[Value]>

Returns an &[Value] if self is compatible with a sequence type

pub fn as_map_iter(&self) -> Option<MapIter<'_>>

Returns an iterator of (&Value, &Value) if self is compatible with a map type

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more
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impl FromRedisValue for Value

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fn from_redis_value(v: &Value) -> Result<Value, RedisError>

Given a redis Value this attempts to convert it into the given destination type. If that fails because it’s not compatible an appropriate error is generated.
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fn from_redis_values(items: &[Value]) -> Result<Vec<Self>, RedisError>

Similar to from_redis_value but constructs a vector of objects from another vector of values. This primarily exists internally to customize the behavior for vectors of tuples.
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fn from_byte_vec(_vec: &[u8]) -> Option<Vec<Self>>

Convert bytes to a single element vector.
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impl PartialEq for Value

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

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

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impl StructuralEq for Value

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impl StructuralPartialEq for Value

Auto Trait Implementations§

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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<T> IntoCollection<T> for T

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fn into_collection<A>(self) -> SmallVec<A>
where A: Array<Item = T>,

Converts self into a collection.
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fn mapped<U, F, A>(self, f: F) -> SmallVec<A>
where F: FnMut(T) -> U, A: Array<Item = U>,

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impl<T> Paint for T
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fn fg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the foreground set to value.

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Returns self with the fg() set to [Color::Rgb].

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Returns self with the fg() set to [Color::Black].

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Returns self with the fg() set to [Color::Blue].

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Returns self with the fg() set to [Color::Magenta].

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Returns self with the fg() set to [Color::BrightGreen].

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Returns self with the fg() set to [Color::BrightYellow].

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Returns self with the fg() set to [Color::BrightBlue].

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Returns self with the fg() set to [Color::BrightMagenta].

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Returns self with the fg() set to [Color::BrightCyan].

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Returns self with the bg() set to [Color::Primary].

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Returns self with the bg() set to [Color::Fixed].

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Returns self with the bg() set to [Color::Yellow].

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Returns self with the bg() set to [Color::Blue].

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Returns self with the bg() set to [Color::Magenta].

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Returns self with the bg() set to [Color::Cyan].

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Returns self with the bg() set to [Color::BrightRed].

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Returns self with the bg() set to [Color::BrightGreen].

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Returns self with the bg() set to [Color::BrightYellow].

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Returns self with the bg() set to [Color::BrightBlue].

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Returns self with the bg() set to [Color::BrightMagenta].

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