#[non_exhaustive]
pub struct IterArgs<'a> { pub prefix: Option<&'a [u8]>, pub start_at: Option<&'a [u8]>, pub start_at_exclusive: bool, pub child_info: Option<ChildInfo>, pub stop_on_incomplete_database: bool, }
Expand description

A struct containing arguments for iterating over the storage.

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§prefix: Option<&'a [u8]>

The prefix of the keys over which to iterate.

§start_at: Option<&'a [u8]>

The prefix from which to start the iteration from.

This is inclusive and the iteration will include the key which is specified here.

§start_at_exclusive: bool

If this is true then the iteration will not include the key specified in start_at, if there is such a key.

§child_info: Option<ChildInfo>

The info of the child trie over which to iterate over.

§stop_on_incomplete_database: bool

Whether to stop iteration when a missing trie node is reached.

When a missing trie node is reached the iterator will:

  • return an error if this is set to false (default)
  • return None if this is set to true

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impl<'a> Default for IterArgs<'a>

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fn default() -> IterArgs<'a>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for IterArgs<'a>

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impl<'a> Send for IterArgs<'a>

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impl<'a> Sync for IterArgs<'a>

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impl<'a> Unpin for IterArgs<'a>

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impl<'a> UnwindSafe for IterArgs<'a>

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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,

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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 Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere 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, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

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fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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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 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.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

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fn unchecked_into(self) -> T

The counterpart to unchecked_from.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> JsonSchemaMaybe for T

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impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,