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Value

Enum Value 

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pub enum Value {
    Utf8(String),
    Bytes(Vec<u8>),
    Double(f64),
    Float(f32),
    Uint16(u16),
    Uint32(u32),
    Int32(i32),
    Uint64(u64),
    Uint128(u128),
    Bool(bool),
    Array(Vec<Value>),
    Map(BTreeMap<String, Value>),
}
Expand description

Owned representation used by the writer and deep-merge engine.

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Utf8(String)

Owned UTF-8 string.

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Bytes(Vec<u8>)

Owned byte string.

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Double(f64)

IEEE-754 64-bit floating-point value.

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Float(f32)

IEEE-754 32-bit floating-point value.

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Uint16(u16)

Unsigned 16-bit integer.

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Uint32(u32)

Unsigned 32-bit integer.

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Int32(i32)

Signed 32-bit integer.

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Uint64(u64)

Unsigned 64-bit integer.

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Uint128(u128)

Unsigned 128-bit integer.

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Bool(bool)

Boolean value.

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Array(Vec<Value>)

Owned MMDB array.

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Map(BTreeMap<String, Value>)

Owned MMDB map with deterministic key ordering.

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impl Value

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pub fn from_serialize<T: Serialize + ?Sized>(value: &T) -> Result<Self>

Converts any serde-serializable value into the writer’s generic value model.

Serialization walks the serde data model directly instead of building an intermediate serde_json::Value, which roughly halves the per-record cost of Writer::insert. Bools, strings, byte strings, sequences and maps keep their shape; integral numbers become Uint64 or Int32, floating point becomes Double, None/unit are rejected because MMDB has no null type, and enum variants become maps.

§Examples
use libmaxminddb_rs::Value;
let value = Value::from_serialize(&serde_json::json!({"asn": 64512}))?;
assert!(matches!(value, Value::Map(_)));

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impl Clone for Value

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fn clone(&self) -> Self

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 Value

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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 PartialEq for Value

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

Auto Trait Implementations§

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impl Freeze for Value

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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 UnsafeUnpin 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<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 = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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.