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Array

Struct Array 

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pub struct Array(/* private fields */);
Expand description

Conversion helper for Value::array.

This type wraps Vec<Value> and provides From implementations for common collection types, so that Value::array() can accept them all through a single impl Into<Array> bound.

Supported source types (where T: Into<Value>):

  • [T; N] — fixed-size array
  • &[T] — slice (requires T: Copy)
  • Vec<T> — vector
  • Box<[T]> — boxed slice
  • () — empty array

Elements are converted to Value via their Into<Value> implementation. This means any type that implements Into<Value> (integers, strings, booleans, floats, nested Values, etc.) can be used as elements.

// From a fixed-size array of integers:
let a = Value::array([1, 2, 3]);

// From a Vec of strings:
let b = Value::array(vec!["x", "y"]);

// From a slice:
let items: &[i32] = &[10, 20];
let c = Value::array(items);

// Empty array via ():
let d = Value::array(());
assert_eq!(d.len(), Some(0));

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impl Array

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pub const fn new() -> Self

Create an empty array.

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pub const fn get_ref(&self) -> &Vec<Value>

Borrow the inner Vec.

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pub fn get_mut(&mut self) -> &mut Vec<Value>

Mutably borrow the inner Vec.

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pub fn into_inner(self) -> Vec<Value>

Unwrap into the inner Vec.

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impl Clone for Array

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fn clone(&self) -> Array

Returns a duplicate 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 Array

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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 Default for Array

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fn default() -> Array

Returns the “default value” for a type. Read more
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impl<T: Into<Value> + Copy> From<&[T]> for Array

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fn from(slice: &[T]) -> Self

Converts to this type from the input type.
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impl<const N: usize, T: Into<Value>> From<[T; N]> for Array

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fn from(array: [T; N]) -> Self

Converts to this type from the input type.
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impl From<()> for Array

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fn from(_: ()) -> Self

Converts to this type from the input type.
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impl From<Array> for Value

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fn from(value: Array) -> Self

Converts to this type from the input type.
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impl<T: Into<Value>> From<Box<[T]>> for Array

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fn from(boxed: Box<[T]>) -> Self

Converts to this type from the input type.
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impl<T: Into<Value>> From<Vec<T>> for Array

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fn from(vec: Vec<T>) -> Self

Converts to this type from the input type.
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impl Hash for Array

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Array

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<Value> for Array

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(value: Value) -> Result<Self>

Performs the conversion.
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impl Eq for Array

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impl StructuralPartialEq for Array

Auto Trait Implementations§

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impl Freeze for Array

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impl RefUnwindSafe for Array

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impl Send for Array

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impl Sync for Array

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impl Unpin for Array

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impl UnsafeUnpin for Array

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impl UnwindSafe for Array

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> Az for T

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fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.
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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<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

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fn cast_from(src: Src) -> Dst

Casts the value.
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impl<T> CheckedAs for T

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fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.
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impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

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fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.
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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> OverflowingAs for T

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fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.
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impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

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fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.
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impl<T> SaturatingAs for T

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fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.
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impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

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fn saturating_cast_from(src: Src) -> Dst

Casts the value.
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impl<T> StrictAs for T

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fn strict_as<Dst>(self) -> Dst
where T: StrictCast<Dst>,

Casts the value.
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impl<Src, Dst> StrictCastFrom<Src> for Dst
where Src: StrictCast<Dst>,

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fn strict_cast_from(src: Src) -> Dst

Casts the value.
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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.
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impl<T> UnwrappedAs for T

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fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.
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impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

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fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.
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impl<T> WrappingAs for T

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fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.
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impl<Src, Dst> WrappingCastFrom<Src> for Dst
where Src: WrappingCast<Dst>,

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fn wrapping_cast_from(src: Src) -> Dst

Casts the value.