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Value

Enum Value 

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pub enum Value {
Show 18 variants Nil, Number(Number), Bool(bool), Char(char), String(String), Array(Vec<Value>), Dict(HashMap<ValueKey, Value>), Set(HashSet<ValueKey>), Expr(ExprId), Symbol(u32), Indeterminate(IndeterminateForm), Undefined, Error(String), Tuple(Vec<Value>), Result(Result<Box<Value>, String>), Class(u32), JitFunction(u32), Option(Option<Box<Value>>),
}
Expand description

Value type (spec §5): covers the value forms of each layer of the three-world architecture — the symbolic layer (Expr/Symbol/Indeterminate), the numeric layer (Number), and the host layer (Bool/String/Error, etc.). Array is a variable-length heterogeneous sequence (v2.1, spec §11.3); Dict/Set are variable host collections keyed/elemented by immutable hashable ValueKeys (spec §4.6/§11.6). Result/Error carry a structured Error as a message string (the structured enum from spec §16.1 is deferred to a later release).

Variants§

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Nil

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Number(Number)

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Bool(bool)

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Char(char)

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String(String)

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Array(Vec<Value>)

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Dict(HashMap<ValueKey, Value>)

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Set(HashSet<ValueKey>)

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Expr(ExprId)

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Symbol(u32)

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Indeterminate(IndeterminateForm)

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Undefined

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Error(String)

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Tuple(Vec<Value>)

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Result(Result<Box<Value>, String>)

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Class(u32)

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JitFunction(u32)

Compiled/JIT-ed function handle (spec §19.2/§19.4): a process-local id into the prima-runtime::jit registry. Only produced by the jit(...) builtin. Like Class, the id is process-local (no cross-process serialization) and lives for the process lifetime.

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Option(Option<Box<Value>>)

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

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 Value

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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 Value

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

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

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

Inequality operator !=. Read more
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impl StructuralPartialEq for Value

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnsafeUnpin for Value

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impl UnwindSafe for Value

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 = !

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.