Struct dync::ValueRef

pub struct ValueRef<'a, V> { /* fields omitted */ }

A generic value reference into a buffer.

Methods

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

pub fn size(&self) -> usize

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

pub fn value_type_id(&self) -> TypeId

Get the TypeId of the referenced value.

pub fn is<T: 'static>(&self) -> bool

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

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

Create a new ValueRef from a typed reference.

pub fn clone_value(&self) -> Value<Box<[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.

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

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

Trait Implementations

impl<'a, V: Clone> Clone for ValueRef<'a, V>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, V: HasDebug> Debug for ValueRef<'a, V>

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

Formats the value using the given formatter.

impl<'a, V: HasEq> Eq for ValueRef<'a, V>

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

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

Performs the conversion.

impl<'a, V: HasHash> Hash for ValueRef<'a, V>

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl<'a, V: HasPartialEq> PartialEq<ValueRef<'a, V>> for ValueRef<'a, V>

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.