Struct calc::Context[−][src]

pub struct Context<N> {
    pub history: Vec<N>,
}

Calculation context.

Stores a history of calculated values, so that the history lookups (@) work properly. Also reifies the numeric type backing the calculations.

Fields

history: Vec<N>

Implementations

impl<N> Context<N> where
    N: Debug + Calcable,
    <N as Calcable>::Err: 'static, [src]

pub fn evaluate(&mut self, expr: &str) -> Result<N, Error<N>>[src]

Evaluate an expression in this context.

This both returns the calculated value and stores a copy in the context's history.

Trait Implementations

impl<N: Default> Default for Context<N>[src]

Auto Trait Implementations

impl<N> RefUnwindSafe for Context<N> where
    N: RefUnwindSafe, [src]

impl<N> Send for Context<N> where
    N: Send, [src]

impl<N> Sync for Context<N> where
    N: Sync, [src]

impl<N> Unpin for Context<N> where
    N: Unpin, [src]

impl<N> UnwindSafe for Context<N> where
    N: UnwindSafe, [src]

Blanket Implementations

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

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.