Struct PollResultsContentBlock
#[non_exhaustive]pub struct PollResultsContentBlock(/* private fields */);
Expand description
A block for the results of a poll.
This is a map of answer ID to number of votes.
Implementations§
Methods from Deref<Target = BTreeMap<String, UInt>>§
1.0.0 · Sourcepub fn get<Q>(&self, key: &Q) -> Option<&V>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn get<Q>(&self, key: &Q) -> Option<&V>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.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
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);
1.40.0 · Sourcepub fn get_key_value<Q>(&self, k: &Q) -> Option<(&K, &V)>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn get_key_value<Q>(&self, k: &Q) -> Option<(&K, &V)>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns the key-value pair corresponding to the supplied key. This is potentially useful:
- for key types where non-identical keys can be considered equal;
- for getting the
&K
stored key value from a borrowed&Q
lookup key; or - for getting a reference to a key with the same lifetime as the collection.
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::cmp::Ordering;
use std::collections::BTreeMap;
#[derive(Clone, Copy, Debug)]
struct S {
id: u32,
name: &'static str, // ignored by equality and ordering operations
}
impl PartialEq for S {
fn eq(&self, other: &S) -> bool {
self.id == other.id
}
}
impl Eq for S {}
impl PartialOrd for S {
fn partial_cmp(&self, other: &S) -> Option<Ordering> {
self.id.partial_cmp(&other.id)
}
}
impl Ord for S {
fn cmp(&self, other: &S) -> Ordering {
self.id.cmp(&other.id)
}
}
let j_a = S { id: 1, name: "Jessica" };
let j_b = S { id: 1, name: "Jess" };
let p = S { id: 2, name: "Paul" };
assert_eq!(j_a, j_b);
let mut map = BTreeMap::new();
map.insert(j_a, "Paris");
assert_eq!(map.get_key_value(&j_a), Some((&j_a, &"Paris")));
assert_eq!(map.get_key_value(&j_b), Some((&j_a, &"Paris"))); // the notable case
assert_eq!(map.get_key_value(&p), None);
1.66.0 · Sourcepub fn first_key_value(&self) -> Option<(&K, &V)>where
K: Ord,
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn first_key_value(&self) -> Option<(&K, &V)>where
K: Ord,
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns the first key-value pair in the map. The key in this pair is the minimum key in the map.
§Examples
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")));
1.66.0 · Sourcepub fn last_key_value(&self) -> Option<(&K, &V)>where
K: Ord,
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn last_key_value(&self) -> Option<(&K, &V)>where
K: Ord,
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns the last key-value pair in the map. The key in this pair is the maximum key in the map.
§Examples
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")));
1.0.0 · Sourcepub fn contains_key<Q>(&self, key: &Q) -> bool
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn contains_key<Q>(&self, key: &Q) -> bool
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.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
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);
1.17.0 · Sourcepub fn range<T, R>(&self, range: R) -> Range<'_, K, V>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn range<T, R>(&self, range: R) -> Range<'_, K, V>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.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
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());
1.0.0 · Sourcepub fn iter(&self) -> Iter<'_, K, V>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn iter(&self) -> Iter<'_, K, V>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Gets an iterator over the entries of the map, sorted by key.
§Examples
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"));
1.0.0 · Sourcepub fn keys(&self) -> Keys<'_, K, V>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn keys(&self) -> Keys<'_, K, V>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Gets an iterator over the keys of the map, in sorted order.
§Examples
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]);
1.0.0 · Sourcepub fn values(&self) -> Values<'_, K, V>
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn values(&self) -> Values<'_, K, V>
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Gets an iterator over the values of the map, in order by key.
§Examples
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"]);
1.0.0 · Sourcepub fn len(&self) -> usize
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn len(&self) -> usize
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns the number of elements in the map.
§Examples
use std::collections::BTreeMap;
let mut a = BTreeMap::new();
assert_eq!(a.len(), 0);
a.insert(1, "a");
assert_eq!(a.len(), 1);
1.0.0 · Sourcepub fn is_empty(&self) -> bool
Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn is_empty(&self) -> bool
testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns true
if the map contains no elements.
§Examples
use std::collections::BTreeMap;
let mut a = BTreeMap::new();
assert!(a.is_empty());
a.insert(1, "a");
assert!(!a.is_empty());
Sourcepub fn lower_bound<Q>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
🔬This is a nightly-only experimental API. (btree_cursors
)Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn lower_bound<Q>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
btree_cursors
)testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns a Cursor
pointing at the gap before the smallest key
greater than the given bound.
Passing Bound::Included(x)
will return a cursor pointing to the
gap before the smallest key greater than or equal to x
.
Passing Bound::Excluded(x)
will return a cursor pointing to the
gap before the smallest key greater than x
.
Passing Bound::Unbounded
will return a cursor pointing to the
gap before the smallest key in the map.
§Examples
#![feature(btree_cursors)]
use std::collections::BTreeMap;
use std::ops::Bound;
let map = BTreeMap::from([
(1, "a"),
(2, "b"),
(3, "c"),
(4, "d"),
]);
let cursor = map.lower_bound(Bound::Included(&2));
assert_eq!(cursor.peek_prev(), Some((&1, &"a")));
assert_eq!(cursor.peek_next(), Some((&2, &"b")));
let cursor = map.lower_bound(Bound::Excluded(&2));
assert_eq!(cursor.peek_prev(), Some((&2, &"b")));
assert_eq!(cursor.peek_next(), Some((&3, &"c")));
let cursor = map.lower_bound(Bound::Unbounded);
assert_eq!(cursor.peek_prev(), None);
assert_eq!(cursor.peek_next(), Some((&1, &"a")));
Sourcepub fn upper_bound<Q>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
🔬This is a nightly-only experimental API. (btree_cursors
)Available on crate feature testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.
pub fn upper_bound<Q>(&self, bound: Bound<&Q>) -> Cursor<'_, K, V>
btree_cursors
)testing
and non-target_family="wasm"
and crate feature e2e-encryption
only.Returns a Cursor
pointing at the gap after the greatest key
smaller than the given bound.
Passing Bound::Included(x)
will return a cursor pointing to the
gap after the greatest key smaller than or equal to x
.
Passing Bound::Excluded(x)
will return a cursor pointing to the
gap after the greatest key smaller than x
.
Passing Bound::Unbounded
will return a cursor pointing to the
gap after the greatest key in the map.
§Examples
#![feature(btree_cursors)]
use std::collections::BTreeMap;
use std::ops::Bound;
let map = BTreeMap::from([
(1, "a"),
(2, "b"),
(3, "c"),
(4, "d"),
]);
let cursor = map.upper_bound(Bound::Included(&3));
assert_eq!(cursor.peek_prev(), Some((&3, &"c")));
assert_eq!(cursor.peek_next(), Some((&4, &"d")));
let cursor = map.upper_bound(Bound::Excluded(&3));
assert_eq!(cursor.peek_prev(), Some((&2, &"b")));
assert_eq!(cursor.peek_next(), Some((&3, &"c")));
let cursor = map.upper_bound(Bound::Unbounded);
assert_eq!(cursor.peek_prev(), Some((&4, &"d")));
assert_eq!(cursor.peek_next(), None);
Trait Implementations§
§impl Clone for PollResultsContentBlock
impl Clone for PollResultsContentBlock
§fn clone(&self) -> PollResultsContentBlock
fn clone(&self) -> PollResultsContentBlock
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more§impl Debug for PollResultsContentBlock
impl Debug for PollResultsContentBlock
§impl Default for PollResultsContentBlock
impl Default for PollResultsContentBlock
§fn default() -> PollResultsContentBlock
fn default() -> PollResultsContentBlock
§impl Deref for PollResultsContentBlock
impl Deref for PollResultsContentBlock
§impl<'de> Deserialize<'de> for PollResultsContentBlock
impl<'de> Deserialize<'de> for PollResultsContentBlock
§fn deserialize<__D>(
__deserializer: __D,
) -> Result<PollResultsContentBlock, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D,
) -> Result<PollResultsContentBlock, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
§impl FromIterator<(String, UInt)> for PollResultsContentBlock
impl FromIterator<(String, UInt)> for PollResultsContentBlock
§fn from_iter<T>(iter: T) -> PollResultsContentBlock
fn from_iter<T>(iter: T) -> PollResultsContentBlock
§impl IntoIterator for PollResultsContentBlock
impl IntoIterator for PollResultsContentBlock
§impl Serialize for PollResultsContentBlock
impl Serialize for PollResultsContentBlock
§fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
Auto Trait Implementations§
impl Freeze for PollResultsContentBlock
impl RefUnwindSafe for PollResultsContentBlock
impl Send for PollResultsContentBlock
impl Sync for PollResultsContentBlock
impl Unpin for PollResultsContentBlock
impl UnwindSafe for PollResultsContentBlock
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
§impl<T> CompatExt for T
impl<T> CompatExt for T
Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
, which can then be
downcast
into Box<dyn ConcreteType>
where ConcreteType
implements Trait
.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
, which can then be further
downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
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impl<T> DowncastSend for T
Source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
Source§impl<T, UT> HandleAlloc<UT> for T
impl<T, UT> HandleAlloc<UT> for T
Source§fn consume_handle(handle: Handle) -> Arc<T>
fn consume_handle(handle: Handle) -> Arc<T>
Arc<>
Source§impl<T, W> HasTypeWitness<W> for Twhere
W: MakeTypeWitness<Arg = T>,
T: ?Sized,
impl<T, W> HasTypeWitness<W> for Twhere
W: MakeTypeWitness<Arg = T>,
T: ?Sized,
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T: ?Sized,
impl<T> Identity for Twhere
T: ?Sized,
§impl<T> Instrument for T
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§fn instrument(self, span: Span) -> Instrumented<Self>
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Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more