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VmMap

Struct VmMap 

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pub struct VmMap { /* private fields */ }
Expand description

Runtime map storage for VM values.

Keys and values may be any runtime Value. Key equality is hybrid: scalars, strings, and bytes compare by value, while arrays and maps compare by heap-object identity. Float keys use canonicalized IEEE bits: 0.0 / -0.0 are treated as the same key, while NaN keys only compare equal when their bit patterns match. Duplicate inserts overwrite the prior value for the same key.

Heap-backed keys remain stable after insertion. Values are reference-counted and container writes detach before mutation, so later writes through an alias create a new heap object instead of mutating a key already stored in the map.

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impl VmMap

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pub fn new() -> Self

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pub fn from_entries(entries: Vec<(Value, Value)>) -> Self

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pub fn len(&self) -> usize

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pub fn is_empty(&self) -> bool

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pub fn iter(&self) -> VmMapIter<'_>

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

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pub fn insert(&mut self, key: Value, value: Value) -> Option<Value>

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pub fn remove(&mut self, key: &Value) -> Option<Value>

Trait Implementations§

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impl Clone for VmMap

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fn clone(&self) -> VmMap

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 Debug for VmMap

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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 Default for VmMap

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fn default() -> VmMap

Returns the “default value” for a type. Read more
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impl Eq for VmMap

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impl From<Vec<(Value, Value)>> for VmMap

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fn from(value: Vec<(Value, Value)>) -> Self

Converts to this type from the input type.
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impl IntoIterator for VmMap

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type Item = (Value, Value)

The type of the elements being iterated over.
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type IntoIter = VmMapIntoIter

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl<'a> IntoIterator for &'a VmMap

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type Item = (&'a Value, &'a Value)

The type of the elements being iterated over.
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type IntoIter = VmMapIter<'a>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl PartialEq for VmMap

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

Auto Trait Implementations§

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impl Freeze for VmMap

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impl RefUnwindSafe for VmMap

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impl Send for VmMap

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impl Sync for VmMap

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impl Unpin for VmMap

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impl UnsafeUnpin for VmMap

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impl UnwindSafe for VmMap

Blanket Implementations§

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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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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.