Struct dync::ValueRef

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pub struct ValueRef<'a, V> where
    V: ?Sized + HasDrop,  { /* private fields */ }

Expand description

A generic value reference into a buffer.

Implementations

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impl<'a, V: HasDrop> ValueRef<'a, V>

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pub fn new<T: Any + DropBytes>(typed: &'a T) -> ValueRef<'a, V> where
V: VTable<T>,

Create a new ValueRef from a typed reference.

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impl<'a, V: ?Sized + HasDrop> ValueRef<'a, V>

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pub fn size(&self) -> usize

Get the size of the value pointed-to by this reference.

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pub fn value_type_id(&self) -> TypeId

Get the TypeId of the referenced value.

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pub fn value_alignment(&self) -> usize

Get the alignment of the referenced value.

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pub fn is<T: 'static>(&self) -> bool

Returns true if this referenced value’s type is the same as T.

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pub fn clone_value(&self) -> Value<Box<[MaybeUninit<u8>]>, V> where
V: HasClone + Clone,

Clone the referenced value.

Unlike the Clone trait, this function will produce an owned clone of the value pointed to by this value reference.

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pub fn clone_small_value(&self) -> Value<MaybeUninit<usize>, V> where
V: HasClone + Clone,

Clone the referenced value.

Unlike the Clone trait, this function will produce an owned clone of the value pointed to by this value reference.

This version of clone_value tries to fit the underlying value into a usize sized value, and panics if that fails.

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pub fn downcast<T: 'static>(self) -> Option<&'a T>

Downcast this value reference into a borrowed T type. Return None if the downcast fails.

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pub fn upcast<U: ?Sized + HasDrop + From<V>>(self) -> ValueRef<'a, U> where
V: Clone,

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pub fn upcast_ref<U: ?Sized + HasDrop + From<V>>(&self) -> ValueRef<'_, U> where
V: Clone,

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pub fn reborrow(&self) -> ValueRef<'_, V>

An alternative to Clone that doesn’t require cloning the vtable.

Trait Implementations

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impl<'a, V: Clone> Clone for ValueRef<'a, V> where
V: ?Sized + HasDrop,

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fn clone(&self) -> ValueRef<'a, V>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<'a, V: ?Sized + HasDebug + HasDrop> Debug for ValueRef<'a, V>

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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<'a, B: GetBytesMut + DropAsAligned, V> From<&'a Value<B, V>> for ValueRef<'a, V> where
B: GetBytesRef,
V: ?Sized + Clone + HasDrop,

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fn from(val: &'a Value<B, V>) -> Self

Converts to this type from the input type.

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impl<'a, V: Any + Clone> From<CopyValueRef<'a, V>> for ValueRef<'a, (DropFn, V)>

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fn from(v: CopyValueRef<'a, V>) -> ValueRef<'a, (DropFn, V)>

Converts to this type from the input type.

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impl<'a, V: HasDrop> From<ValueMut<'a, V>> for ValueRef<'a, V>

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fn from(v: ValueMut<'a, V>) -> ValueRef<'a, V>

Converts to this type from the input type.

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impl<'a, V: HasDrop> From<ValueRef<'a, V>> for Meta<VTableRef<'a, V>>

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fn from(val: ValueRef<'a, V>) -> Meta<VTableRef<'a, V>>

Converts to this type from the input type.

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impl<'a, V: ?Sized + HasHash + HasDrop> Hash for ValueRef<'a, V>

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fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl<'a, V: ?Sized + HasPartialEq + HasDrop> PartialEq<ValueRef<'a, V>> for ValueRef<'a, V>

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

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

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

This method tests for !=.

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impl<'a, V: ?Sized + HasEq + HasDrop> Eq for ValueRef<'a, V>

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impl<'a, V: ?Sized + HasSend + HasDrop> Send for ValueRef<'a, V>

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impl<'a, V: ?Sized + HasSync + HasDrop> Sync for ValueRef<'a, V>

Auto Trait Implementations

impl<'a, V: ?Sized> RefUnwindSafe for ValueRef<'a, V> where
V: RefUnwindSafe,

impl<'a, V: ?Sized> Unpin for ValueRef<'a, V>

impl<'a, V: ?Sized> UnwindSafe for ValueRef<'a, V> where
V: UnwindSafe + RefUnwindSafe,

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,

const: unstable · source

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,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneBytes for T where
T: 'static + Clone,

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unsafe fn clone_bytes(src: &[MaybeUninit<u8>]) -> Box<[MaybeUninit<u8>], Global>

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unsafe fn clone_from_bytes(dst: &mut [MaybeUninit<u8>], src: &[MaybeUninit<u8>])

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unsafe fn clone_into_raw_bytes(
src: &[MaybeUninit<u8>],
dst: &mut [MaybeUninit<u8>]
)

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impl<T> DebugBytes for T where
T: 'static + Debug,

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unsafe fn fmt_bytes(
bytes: &[MaybeUninit<u8>],
f: &mut Formatter<'_>
) -> Result<(), Error>

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impl<T> Downcast for T where
T: Any,

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fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

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impl<T> DowncastSync for T where
T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> HashBytes for T where
T: 'static + Hash,

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unsafe fn hash_bytes(bytes: &[MaybeUninit<u8>], state: &mut dyn Hasher)

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

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> PartialEqBytes for T where
T: 'static + PartialEq<T>,

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unsafe fn eq_bytes(a: &[MaybeUninit<u8>], b: &[MaybeUninit<u8>]) -> bool

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impl<T> ToOwned for T where
T: Clone,

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)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct dync::ValueRef

Implementations

impl<'a, V: HasDrop> ValueRef<'a, V>

pub fn new<T: Any + DropBytes>(typed: &'a T) -> ValueRef<'a, V> where V: VTable<T>,

impl<'a, V: ?Sized + HasDrop> ValueRef<'a, V>

pub fn size(&self) -> usize

pub fn value_type_id(&self) -> TypeId

pub fn value_alignment(&self) -> usize

pub fn is<T: 'static>(&self) -> bool

pub fn clone_value(&self) -> Value<Box<[MaybeUninit<u8>]>, V> where V: HasClone + Clone,

pub fn clone_small_value(&self) -> Value<MaybeUninit<usize>, V> where V: HasClone + Clone,

pub fn downcast<T: 'static>(self) -> Option<&'a T>

pub fn upcast<U: ?Sized + HasDrop + From<V>>(self) -> ValueRef<'a, U> where V: Clone,

pub fn upcast_ref<U: ?Sized + HasDrop + From<V>>(&self) -> ValueRef<'_, U> where V: Clone,

pub fn reborrow(&self) -> ValueRef<'_, V>

Trait Implementations

impl<'a, V: Clone> Clone for ValueRef<'a, V> where V: ?Sized + HasDrop,

fn clone(&self) -> ValueRef<'a, V>

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

impl<'a, V: ?Sized + HasDebug + HasDrop> Debug for ValueRef<'a, V>

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

impl<'a, B: GetBytesMut + DropAsAligned, V> From<&'a Value<B, V>> for ValueRef<'a, V> where B: GetBytesRef, V: ?Sized + Clone + HasDrop,

fn from(val: &'a Value<B, V>) -> Self

impl<'a, V: Any + Clone> From<CopyValueRef<'a, V>> for ValueRef<'a, (DropFn, V)>

fn from(v: CopyValueRef<'a, V>) -> ValueRef<'a, (DropFn, V)>

impl<'a, V: HasDrop> From<ValueMut<'a, V>> for ValueRef<'a, V>

fn from(v: ValueMut<'a, V>) -> ValueRef<'a, V>

impl<'a, V: HasDrop> From<ValueRef<'a, V>> for Meta<VTableRef<'a, V>>

fn from(val: ValueRef<'a, V>) -> Meta<VTableRef<'a, V>>

impl<'a, V: ?Sized + HasHash + HasDrop> Hash for ValueRef<'a, V>

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,

impl<'a, V: ?Sized + HasPartialEq + HasDrop> PartialEq<ValueRef<'a, V>> for ValueRef<'a, V>

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

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

impl<'a, V: ?Sized + HasEq + HasDrop> Eq for ValueRef<'a, V>

impl<'a, V: ?Sized + HasSend + HasDrop> Send for ValueRef<'a, V>

impl<'a, V: ?Sized + HasSync + HasDrop> Sync for ValueRef<'a, V>

Auto Trait Implementations

impl<'a, V: ?Sized> RefUnwindSafe for ValueRef<'a, V> where V: RefUnwindSafe,

impl<'a, V: ?Sized> Unpin for ValueRef<'a, V>

impl<'a, V: ?Sized> UnwindSafe for ValueRef<'a, V> where V: UnwindSafe + RefUnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneBytes for T where T: 'static + Clone,

unsafe fn clone_bytes(src: &[MaybeUninit<u8>]) -> Box<[MaybeUninit<u8>], Global>

unsafe fn clone_from_bytes(dst: &mut [MaybeUninit<u8>], src: &[MaybeUninit<u8>])

unsafe fn clone_into_raw_bytes( src: &[MaybeUninit<u8>], dst: &mut [MaybeUninit<u8>])

impl<T> DebugBytes for T where T: 'static + Debug,

unsafe fn fmt_bytes( bytes: &[MaybeUninit<u8>], f: &mut Formatter<'_>) -> Result<(), Error>

impl<T> Downcast for T where T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

fn as_any(&self) -> &(dyn Any + 'static)

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

impl<T> DowncastSync for T where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync + 'static>

impl<T> DropBytes for T where T: 'static,

unsafe fn drop_bytes(bytes: &mut [MaybeUninit<u8>])

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> HashBytes for T where T: 'static + Hash,

unsafe fn hash_bytes(bytes: &[MaybeUninit<u8>], state: &mut dyn Hasher)

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> PartialEqBytes for T where T: 'static + PartialEq<T>,

unsafe fn eq_bytes(a: &[MaybeUninit<u8>], b: &[MaybeUninit<u8>]) -> bool

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

pub fn new<T: Any + DropBytes>(typed: &'a T) -> ValueRef<'a, V> where
V: VTable<T>,

pub fn clone_value(&self) -> Value<Box<[MaybeUninit<u8>]>, V> where
V: HasClone + Clone,

pub fn clone_small_value(&self) -> Value<MaybeUninit<usize>, V> where
V: HasClone + Clone,

pub fn upcast<U: ?Sized + HasDrop + From<V>>(self) -> ValueRef<'a, U> where
V: Clone,

pub fn upcast_ref<U: ?Sized + HasDrop + From<V>>(&self) -> ValueRef<'_, U> where
V: Clone,

impl<'a, V: Clone> Clone for ValueRef<'a, V> where
V: ?Sized + HasDrop,

impl<'a, B: GetBytesMut + DropAsAligned, V> From<&'a Value<B, V>> for ValueRef<'a, V> where
B: GetBytesRef,
V: ?Sized + Clone + HasDrop,

fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,

impl<'a, V: ?Sized> RefUnwindSafe for ValueRef<'a, V> where
V: RefUnwindSafe,

impl<'a, V: ?Sized> UnwindSafe for ValueRef<'a, V> where
V: UnwindSafe + RefUnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> CloneBytes for T where
T: 'static + Clone,

unsafe fn clone_into_raw_bytes(
src: &[MaybeUninit<u8>],
dst: &mut [MaybeUninit<u8>]
)

impl<T> DebugBytes for T where
T: 'static + Debug,

unsafe fn fmt_bytes(
bytes: &[MaybeUninit<u8>],
f: &mut Formatter<'_>
) -> Result<(), Error>

impl<T> Downcast for T where
T: Any,

impl<T> DowncastSync for T where
T: Any + Send + Sync,

impl<T> DropBytes for T where
T: 'static,

impl<T> HashBytes for T where
T: 'static + Hash,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> PartialEqBytes for T where
T: 'static + PartialEq<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,