IndexComponent

Enum IndexComponent 

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pub enum IndexComponent {
    Single(Expr),
    Range {
        start: Option<Box<Expr>>,
        end: Option<Box<Expr>>,
        step: Option<Box<Expr>>,
        inclusive: bool,
    },
    Full,
}
Expand description

A single component of a multi-dimensional index expression.

Supports single-element indexing, range slicing, and full-dimension selection:

  • arr[i, j] → Single(i), Single(j)
  • arr[1..5, ::2] → Range { start: 1, end: 5 }, Range { step: 2 }
  • arr[.., 3] → Full, Single(3)

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Single(Expr)

Single index: arr[i]

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Range

Range with optional start, end, step: arr[1..5], arr[::2], arr[1..5::2]

Fields

§start: Option<Box<Expr>>
§step: Option<Box<Expr>>
§inclusive: bool
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Full

Full dimension: arr[..]

Trait Implementations§

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impl Clone for IndexComponent

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fn clone(&self) -> IndexComponent

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 IndexComponent

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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 IndexComponent

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fn eq(&self, other: &IndexComponent) -> 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 StructuralPartialEq for IndexComponent

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> 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.