pub struct Map<K, V> { /* private fields */ }
Expand description
Represents a TOML key/value type.
Implementations§
source§impl Map<String, Value>
impl Map<String, Value>
sourcepub fn with_capacity(capacity: usize) -> Self
pub fn with_capacity(capacity: usize) -> Self
Makes a new empty Map with the given initial capacity.
sourcepub fn get<Q>(&self, key: &Q) -> Option<&Value>
pub fn get<Q>(&self, key: &Q) -> Option<&Value>
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.
sourcepub fn contains_key<Q>(&self, key: &Q) -> bool
pub fn contains_key<Q>(&self, key: &Q) -> bool
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.
sourcepub fn get_mut<Q>(&mut self, key: &Q) -> Option<&mut Value>
pub fn get_mut<Q>(&mut self, key: &Q) -> Option<&mut Value>
Returns a mutable 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.
sourcepub fn insert(&mut self, k: String, v: Value) -> Option<Value>
pub fn insert(&mut self, k: String, v: Value) -> Option<Value>
Inserts a key-value pair into the map.
If the map did not have this key present, None
is returned.
If the map did have this key present, the value is updated, and the old
value is returned. The key is not updated, though; this matters for
types that can be ==
without being identical.
sourcepub fn remove<Q>(&mut self, key: &Q) -> Option<Value>
pub fn remove<Q>(&mut self, key: &Q) -> Option<Value>
Removes a key from the map, returning the value at the key if the key was previously in the map.
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.
sourcepub fn entry<S>(&mut self, key: S) -> Entry<'_>
pub fn entry<S>(&mut self, key: S) -> Entry<'_>
Gets the given key’s corresponding entry in the map for in-place manipulation.
Trait Implementations§
source§impl<'de> Deserialize<'de> for Map<String, Value>
impl<'de> Deserialize<'de> for Map<String, Value>
source§fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
source§impl Extend<(String, Value)> for Map<String, Value>
impl Extend<(String, Value)> for Map<String, Value>
source§fn extend<T>(&mut self, iter: T)
fn extend<T>(&mut self, iter: T)
source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)source§impl<'a, Q> Index<&'a Q> for Map<String, Value>
impl<'a, Q> Index<&'a Q> for Map<String, Value>
Access an element of this map. Panics if the given key is not present in the map.
source§impl<'a, Q> IndexMut<&'a Q> for Map<String, Value>
impl<'a, Q> IndexMut<&'a Q> for Map<String, Value>
Mutably access an element of this map. Panics if the given key is not present in the map.
Auto Trait Implementations§
impl<K, V> Freeze for Map<K, V>
impl<K, V> RefUnwindSafe for Map<K, V>where
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<K, V> Send for Map<K, V>
impl<K, V> Sync for Map<K, V>
impl<K, V> Unpin for Map<K, V>
impl<K, V> UnwindSafe for Map<K, V>where
K: UnwindSafe,
V: UnwindSafe,
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,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)