Enum DynamicManagedValue 

pub enum DynamicManagedValue {
    Owned(DynamicManaged),
    Ref(DynamicManagedRef),
    RefMut(DynamicManagedRefMut),
    Lazy(DynamicManagedLazy),
    Gc(DynamicManagedGc),
}

A value of a runtime known type, held in any of the possible ways.

The ManagedValue counterpart for script values.

Variants

Owned(DynamicManaged)

The value itself.

Ref(DynamicManagedRef)

A shared handle to someone else’s value.

RefMut(DynamicManagedRefMut)

An exclusive handle to someone else’s value.

Lazy(DynamicManagedLazy)

An unclaimed handle to someone else’s value.

Gc(DynamicManagedGc)

A garbage collected handle, owning or referencing.

Implementations

impl DynamicManagedValue

pub fn as_owned(&self) -> Option<&DynamicManaged>

Returns the owned value, or None for any other role.

pub fn as_mut_owned(&mut self) -> Option<&mut DynamicManaged>

Returns the owned value mutably, or None for any other role.

pub fn as_ref(&self) -> Option<&DynamicManagedRef>

Returns the shared handle, or None for any other role.

pub fn as_mut_ref(&mut self) -> Option<&mut DynamicManagedRef>

Returns the shared handle mutably, or None for any other role.

pub fn as_ref_mut(&self) -> Option<&DynamicManagedRefMut>

Returns the exclusive handle, or None for any other role.

pub fn as_mut_ref_mut(&mut self) -> Option<&mut DynamicManagedRefMut>

Returns the exclusive handle mutably, or None for any other role.

pub fn as_lazy(&self) -> Option<&DynamicManagedLazy>

Returns the unclaimed handle, or None for any other role.

pub fn as_mut_lazy(&mut self) -> Option<&mut DynamicManagedLazy>

Returns the unclaimed handle mutably, or None for any other role.

pub fn as_gc(&self) -> Option<&DynamicManagedGc>

Returns the garbage collected handle, or None for any other role.

pub fn as_mut_gc(&mut self) -> Option<&mut DynamicManagedGc>

Returns the garbage collected handle mutably, or None for any other role.

pub fn read<T>(&self) -> Option<ValueReadAccess<'_, T>>

Guards the value for reading, whichever role holds it.

Returns None when the value is not a T.

pub fn write<T>(&mut self) -> Option<ValueWriteAccess<'_, T>>

Guards the value for writing.

Always None for a shared handle, or when the value is not a T.

pub fn borrow(&self) -> Option<DynamicManagedRef>

Takes a shared handle to the value.

Always None for an unclaimed handle, which cannot lend its claim.

pub fn borrow_mut(&mut self) -> Option<DynamicManagedRefMut>

Takes an exclusive handle to the value.

Always None for shared and unclaimed handles.

pub fn lazy(&self) -> Option<DynamicManagedLazy>

Takes an unclaimed handle to the value.

Always None for a shared handle. See DynamicManagedValue::lazy_immutable.

pub unsafe fn lazy_immutable(&self) -> DynamicManagedLazy

DynamicManagedValue::lazy that also works for a shared handle.

Safety

For a shared handle, the result can write to a value that was only borrowed immutably.

pub fn into_typed<T>(self) -> Result<ManagedValue<T>, Self>

Recovers the typed value, giving self back on a type mismatch.

Trait Implementations

impl From<DynamicManaged> for DynamicManagedValue

fn from(value: DynamicManaged) -> Self

Converts to this type from the input type.

impl From<DynamicManagedGc> for DynamicManagedValue

fn from(value: DynamicManagedGc) -> Self

Converts to this type from the input type.

impl From<DynamicManagedLazy> for DynamicManagedValue

fn from(value: DynamicManagedLazy) -> Self

Converts to this type from the input type.

impl From<DynamicManagedRef> for DynamicManagedValue

fn from(value: DynamicManagedRef) -> Self

Converts to this type from the input type.

impl From<DynamicManagedRefMut> for DynamicManagedValue

fn from(value: DynamicManagedRefMut) -> Self

Converts to this type from the input type.

impl TryFrom<DynamicManagedValue> for DynamicManagedGc

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DynamicManagedValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<DynamicManagedValue> for DynamicManaged

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DynamicManagedValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<DynamicManagedValue> for DynamicManagedRef

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DynamicManagedValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<DynamicManagedValue> for DynamicManagedRefMut

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DynamicManagedValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<DynamicManagedValue> for DynamicManagedLazy

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: DynamicManagedValue) -> Result<Self, Self::Error>

Performs the conversion.