Struct sp_state_machine::backend::IterArgs
source · #[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
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; 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 totrue
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impl<'a> Freeze for IterArgs<'a>
impl<'a> RefUnwindSafe for IterArgs<'a>
impl<'a> Send for IterArgs<'a>
impl<'a> Sync for IterArgs<'a>
impl<'a> Unpin for IterArgs<'a>
impl<'a> UnwindSafe for IterArgs<'a>
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