Struct rusqlite::vtab::Values

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pub struct Values<'a> { /* private fields */ }
Available on crate feature vtab only.
Expand description

Wrapper to VTabCursor::filter arguments, the values requested by VTab::best_index.

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impl Values<'_>

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pub fn len(&self) -> usize

Returns the number of values.

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pub fn is_empty(&self) -> bool

Returns true if there is no value.

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pub fn get<T: FromSql>(&self, idx: usize) -> Result<T>

Returns value at idx

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pub fn iter(&self) -> ValueIter<'_>

Turns Values into an iterator.

Trait Implementations§

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impl<'a> IntoIterator for &'a Values<'a>

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type IntoIter = ValueIter<'a>

Which kind of iterator are we turning this into?
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type Item = ValueRef<'a>

The type of the elements being iterated over.
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fn into_iter(self) -> ValueIter<'a>

Creates an iterator from a value. Read more

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Values<'a>

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impl<'a> !Send for Values<'a>

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impl<'a> !Sync for Values<'a>

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impl<'a> Unpin for Values<'a>

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impl<'a> UnwindSafe for Values<'a>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.