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Number

Enum Number 

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pub enum Number {
    U64(u64),
    I64(i64),
    F64(f64),
}
Expand description

A numeric value carried in a manifest, preserving the kind the writer chose.

The wire format distinguishes unsigned, signed, and floating-point numbers; the deserializer preserves that distinction by selecting the matching variant. Use the narrowing accessors (e.g. Number::as_u32, Number::as_f64) to extract a Rust value of the desired type.

Variants§

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U64(u64)

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I64(i64)

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F64(f64)

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impl Number

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pub fn as_u8(self) -> Option<u8>

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pub fn as_u16(self) -> Option<u16>

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pub fn as_u32(self) -> Option<u32>

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pub fn as_u64(self) -> Option<u64>

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pub fn as_usize(self) -> Option<usize>

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pub fn as_i8(self) -> Option<i8>

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pub fn as_i16(self) -> Option<i16>

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pub fn as_i32(self) -> Option<i32>

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pub fn as_i64(self) -> Option<i64>

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pub fn as_isize(self) -> Option<isize>

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pub fn as_f32(self) -> Option<f32>

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pub fn as_f64(self) -> Option<f64>

Trait Implementations§

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impl Clone for Number

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fn clone(&self) -> Number

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 Copy for Number

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impl Debug for Number

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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<'de> Deserialize<'de> for Number

Available on crate feature serde only.
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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer. Read more
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impl From<f32> for Number

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fn from(v: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for Number

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fn from(v: f64) -> Self

Converts to this type from the input type.
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impl From<i8> for Number

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fn from(v: i8) -> Self

Converts to this type from the input type.
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impl From<i16> for Number

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fn from(v: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for Number

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fn from(v: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for Number

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fn from(v: i64) -> Self

Converts to this type from the input type.
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impl From<u8> for Number

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fn from(v: u8) -> Self

Converts to this type from the input type.
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impl From<u16> for Number

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fn from(v: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for Number

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fn from(v: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for Number

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fn from(v: u64) -> Self

Converts to this type from the input type.
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impl From<usize> for Number

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fn from(v: usize) -> Self

Converts to this type from the input type.
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impl Serialize for Number

Available on crate feature serde only.
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fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer. Read more
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impl TryFrom<Number> for u64

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<u64, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for u32

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<u32, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for u16

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<u16, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for u8

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<u8, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for usize

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<usize, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for i64

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<i64, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for i32

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<i32, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for i16

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<i16, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for i8

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<i8, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for isize

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<isize, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for f32

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<f32, Self::Error>

Performs the conversion.
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impl TryFrom<Number> for f64

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from(number: Number) -> Result<f64, Self::Error>

Performs the conversion.

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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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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.