[−][src]Struct evalexpr::EmptyContext
A context that returns None for each identifier.
Trait Implementations
impl Context for EmptyContext[src]
fn get_value(&self, _identifier: &str) -> Option<&Value>[src]
fn get_function(&self, _identifier: &str) -> Option<&Function>[src]
fn set_value(
&mut self,
_identifier: String,
_value: Value
) -> EvalexprResult<()>[src]
&mut self,
_identifier: String,
_value: Value
) -> EvalexprResult<()>
Links the given value to the given identifier.
fn set_function(
&mut self,
_identifier: String,
_function: Function
) -> EvalexprResult<()>[src]
&mut self,
_identifier: String,
_function: Function
) -> EvalexprResult<()>
Links the given function to the given identifier.
Auto Trait Implementations
impl Send for EmptyContext
impl Sync for EmptyContext
Blanket Implementations
impl<T, U> Into for T where
U: From<T>, [src]
U: From<T>,
impl<T> From for T[src]
impl<T, U> TryFrom for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T> Borrow for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,