Trait OptionInstance 

pub trait OptionInstance<'s>: Instance<'s> {
    // Required methods
    fn value<'a>(&'a self) -> Option<Value<'a, 's>>
       where 's: 'a;
    fn boxed_clone(&self) -> Box<dyn OptionInstance<'s> + 's>;
    fn into_boxed_instance(self: Box<Self>) -> Box<dyn Instance<'s> + 's>;
}

A reflected Option

Required Methods

fn value<'a>(&'a self) -> Option<Value<'a, 's>>

where 's: 'a,

Returns a reference to a field in a reflected vec

fn boxed_clone(&self) -> Box<dyn OptionInstance<'s> + 's>

Returns a clone of the instance in a Box.

fn into_boxed_instance(self: Box<Self>) -> Box<dyn Instance<'s> + 's>

Trait Implementations

impl<'s> Clone for Box<dyn OptionInstance<'s> + 's>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'s> Debug for dyn OptionInstance<'s> + 's

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

Formats the value using the given formatter.

impl<'val, 'ty> FromValue<'val, 'ty> for &'val (dyn OptionInstance<'ty> + 'ty)

fn from_value(value: &Value<'val, 'ty>) -> Option<Self>

impl<'s> PartialEq for dyn OptionInstance<'s> + 's

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<'ty, T: Typed<'ty> + Clone + 'ty> OptionInstance<'ty> for Option<T>

fn value<'val>(&'val self) -> Option<Value<'val, 'ty>>

where 'ty: 'val,

fn boxed_clone(&self) -> Box<dyn OptionInstance<'ty> + 'ty>

fn into_boxed_instance(self: Box<Self>) -> Box<dyn Instance<'ty> + 'ty>

Implementors