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Map

Struct Map 

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pub struct Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq, TValue: Clone + PartialEq,
{ pub entries: Vec<(TKey, TValue)>, }
Expand description

Represents an ordered key/value map array.

Internally uses Vec<(K, V)> for efficient storage, but serializes to/from the Serverless Workflow DSL format: [{"key1": "value1"}, {"key2": "value2"}].

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§entries: Vec<(TKey, TValue)>

The ordered entries as (key, value) pairs

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impl<TKey, TValue> Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq, TValue: Clone + PartialEq,

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pub fn new() -> Self

Initializes a new map

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pub fn from(entries: Vec<(TKey, TValue)>) -> Self

Initializes a new map with the provided entries

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pub fn add(&mut self, key: TKey, value: TValue)

Adds the specified entry

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pub fn len(&self) -> usize

Gets the number of entries in the map

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pub fn is_empty(&self) -> bool

Checks if the map is empty

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pub fn contains_key(&self, key: &TKey) -> bool

Checks if the map contains an entry with the specified key

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pub fn get(&self, key: &TKey) -> Option<&TValue>

Gets a reference to the value associated with the specified key

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impl<TKey, TValue> Clone for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq + Clone, TValue: Clone + PartialEq + Clone,

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fn clone(&self) -> Map<TKey, TValue>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<TKey, TValue> Debug for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq + Debug, TValue: Clone + PartialEq + Debug,

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

Formats the value using the given formatter. Read more
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impl<TKey, TValue> Default for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq, TValue: Clone + PartialEq,

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de, TKey, TValue> Deserialize<'de> for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + Deserialize<'de> + PartialEq, TValue: Clone + Deserialize<'de> + PartialEq,

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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer. Read more
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impl<TKey, TValue> PartialEq for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq + PartialEq, TValue: Clone + PartialEq + PartialEq,

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fn eq(&self, other: &Map<TKey, TValue>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<TKey, TValue> Serialize for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + Serialize + PartialEq, TValue: Clone + Serialize + PartialEq,

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fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer. Read more
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impl<TKey, TValue> Eq for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq + Eq, TValue: Clone + PartialEq + Eq,

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impl<TKey, TValue> StructuralPartialEq for Map<TKey, TValue>
where TKey: Eq + Hash + Clone + PartialEq, TValue: Clone + PartialEq,

Auto Trait Implementations§

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impl<TKey, TValue> Freeze for Map<TKey, TValue>

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impl<TKey, TValue> RefUnwindSafe for Map<TKey, TValue>
where TKey: RefUnwindSafe, TValue: RefUnwindSafe,

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impl<TKey, TValue> Send for Map<TKey, TValue>
where TKey: Send, TValue: Send,

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impl<TKey, TValue> Sync for Map<TKey, TValue>
where TKey: Sync, TValue: Sync,

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impl<TKey, TValue> Unpin for Map<TKey, TValue>
where TKey: Unpin, TValue: Unpin,

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impl<TKey, TValue> UnsafeUnpin for Map<TKey, TValue>

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impl<TKey, TValue> UnwindSafe for Map<TKey, TValue>
where TKey: UnwindSafe, TValue: UnwindSafe,

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impl<T> Any for T
where 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 T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, U> Into<U> for T
where 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where 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 T
where 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<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,