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Key

Enum Key 

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pub enum Key {
    Bool(bool),
    Number(f64),
    Str(Vec<u8>),
    Table(Table),
    Function(Func),
    Global(Global),
}
Expand description

A table key. Only hashable Lua values can be keys.

Numbers, booleans, and strings hash by value. Tables and functions hash by identity, matching Lua reference semantics.

Equality follows the same split. Scalar keys compare by value, reference keys by identity. Key::same is the same relation expressed as a method.

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Bool(bool)

Boolean key.

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Number(f64)

Numeric key.

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Str(Vec<u8>)

String key.

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Table(Table)

Table key, tracked by identity.

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Function(Func)

Function key, tracked by identity.

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Global(Global)

Global-named key such as io.stdin.

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impl Key

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pub fn same(&self, other: &Key) -> bool

Identity or value equality used to dedupe keys within one table.

Equivalent to self == other. Kept as a named method for call sites that read better with it.

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pub fn to_value(&self) -> Value

Convert this key back to a value for serialization.

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impl Clone for Key

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fn clone(&self) -> Key

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 Key

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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 PartialEq for Key

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fn eq(&self, other: &Key) -> 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 StructuralPartialEq for Key

Auto Trait Implementations§

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impl !RefUnwindSafe for Key

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impl !Send for Key

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impl !Sync for Key

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impl !UnwindSafe for Key

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impl Freeze for Key

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impl Unpin for Key

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impl UnsafeUnpin for Key

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<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.