Struct pallet_election_provider_multi_phase::signed::SignedSubmissions

pub struct SignedSubmissions<T: Config> { /* private fields */ }

Mask type which pretends to be a set of SignedSubmissionOf<T>, while in fact delegating to the actual implementations in SignedSubmissionIndices<T>, SignedSubmissionsMap<T>, and SignedSubmissionNextIndex<T>.

Implementations

impl<T: Config> SignedSubmissions<T>

pub fn get() -> Self

Get the signed submissions from storage.

pub fn put(self)

Put the signed submissions back into storage.

pub fn iter(&self) -> impl '_ + Iterator<Item = SignedSubmissionOf<T>>

Iterate through the set of signed submissions in order of increasing score.

pub fn decode_len() -> Option<usize>

Decode the length of the signed submissions without actually reading the entire struct into memory.

Note that if you hold an instance of SignedSubmissions, this function does not track its current length. This only decodes what is currently stored in memory.

pub fn insert(&mut self, submission: SignedSubmissionOf<T>) -> InsertResult<T>

Insert a new signed submission into the set.

In the event that the new submission is not better than the current weakest according to is_score_better, we do not change anything.

pub fn pop_last(&mut self) -> Option<SignedSubmissionOf<T>>

Remove the signed submission with the highest score from the set.

Methods from Deref<Target = BTreeMap<K, V, Global>>

pub fn get<Q>(&self, key: &Q) -> Option<&V>where
    K: Borrow<Q> + Ord,
    Q: Ord + ?Sized,

Returns a reference to the value corresponding to the key.

The key may be any borrowed form of the map’s key type, but the ordering on the borrowed form must match the ordering on the key type.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert(1, "a");
assert_eq!(map.get(&1), Some(&"a"));
assert_eq!(map.get(&2), None);

pub fn get_key_value<Q>(&self, k: &Q) -> Option<(&K, &V)>where
    K: Borrow<Q> + Ord,
    Q: Ord + ?Sized,

Returns the key-value pair corresponding to the supplied key.

The supplied key may be any borrowed form of the map’s key type, but the ordering on the borrowed form must match the ordering on the key type.

Examples

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert(1, "a");
assert_eq!(map.get_key_value(&1), Some((&1, &"a")));
assert_eq!(map.get_key_value(&2), None);

pub fn first_key_value(&self) -> Option<(&K, &V)>where
    K: Ord,

Returns the first key-value pair in the map. The key in this pair is the minimum key in the map.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
assert_eq!(map.first_key_value(), None);
map.insert(1, "b");
map.insert(2, "a");
assert_eq!(map.first_key_value(), Some((&1, &"b")));

pub fn last_key_value(&self) -> Option<(&K, &V)>where
    K: Ord,

Returns the last key-value pair in the map. The key in this pair is the maximum key in the map.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert(1, "b");
map.insert(2, "a");
assert_eq!(map.last_key_value(), Some((&2, &"a")));

pub fn contains_key<Q>(&self, key: &Q) -> boolwhere
    K: Borrow<Q> + Ord,
    Q: Ord + ?Sized,

Returns true if the map contains a value for the specified key.

The key may be any borrowed form of the map’s key type, but the ordering on the borrowed form must match the ordering on the key type.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert(1, "a");
assert_eq!(map.contains_key(&1), true);
assert_eq!(map.contains_key(&2), false);

pub fn range<T, R>(&self, range: R) -> Range<'_, K, V>where
    T: Ord + ?Sized,
    K: Borrow<T> + Ord,
    R: RangeBounds<T>,

Constructs a double-ended iterator over a sub-range of elements in the map. The simplest way is to use the range syntax min..max, thus range(min..max) will yield elements from min (inclusive) to max (exclusive). The range may also be entered as (Bound<T>, Bound<T>), so for example range((Excluded(4), Included(10))) will yield a left-exclusive, right-inclusive range from 4 to 10.

Panics

Panics if range start > end. Panics if range start == end and both bounds are Excluded.

Examples

Basic usage:

use std::collections::BTreeMap;
use std::ops::Bound::Included;

let mut map = BTreeMap::new();
map.insert(3, "a");
map.insert(5, "b");
map.insert(8, "c");
for (&key, &value) in map.range((Included(&4), Included(&8))) {
    println!("{key}: {value}");
}
assert_eq!(Some((&5, &"b")), map.range(4..).next());

pub fn iter(&self) -> Iter<'_, K, V>

Gets an iterator over the entries of the map, sorted by key.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert(3, "c");
map.insert(2, "b");
map.insert(1, "a");

for (key, value) in map.iter() {
    println!("{key}: {value}");
}

let (first_key, first_value) = map.iter().next().unwrap();
assert_eq!((*first_key, *first_value), (1, "a"));

pub fn keys(&self) -> Keys<'_, K, V>

Gets an iterator over the keys of the map, in sorted order.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut a = BTreeMap::new();
a.insert(2, "b");
a.insert(1, "a");

let keys: Vec<_> = a.keys().cloned().collect();
assert_eq!(keys, [1, 2]);

pub fn values(&self) -> Values<'_, K, V>

Gets an iterator over the values of the map, in order by key.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut a = BTreeMap::new();
a.insert(1, "hello");
a.insert(2, "goodbye");

let values: Vec<&str> = a.values().cloned().collect();
assert_eq!(values, ["hello", "goodbye"]);

pub fn len(&self) -> usize

Returns the number of elements in the map.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut a = BTreeMap::new();
assert_eq!(a.len(), 0);
a.insert(1, "a");
assert_eq!(a.len(), 1);

pub fn is_empty(&self) -> bool

Returns true if the map contains no elements.

Examples

Basic usage:

use std::collections::BTreeMap;

let mut a = BTreeMap::new();
assert!(a.is_empty());
a.insert(1, "a");
assert!(!a.is_empty());

Trait Implementations

impl<T: Config> Debug for SignedSubmissions<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Config> Deref for SignedSubmissions<T>

type Target = BoundedBTreeMap<ElectionScore, u32, <T as Config>::SignedMaxSubmissions>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.