Enum O

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pub enum O<'a> {
    Empty(&'a Option<Ratio<BigInt>>),
    Exit,
    Eval(&'a Ratio<BigInt>),
    Store(&'a Option<Ratio<BigInt>>),
}
Expand description

A successful evaluation of an input.

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Empty(&'a Option<Ratio<BigInt>>)

The input only contained whitespace. This returns the previous Eval. It is None iff there have been no previous Eval results.

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Exit

The quit expression was issued to terminate the program.

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Eval(&'a Ratio<BigInt>)

Result of a “normal” expression.

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Store(&'a Option<Ratio<BigInt>>)

The store expression stores and returns the previous Eval. It is None iff there have been no previous Eval results.

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impl<'a> Debug for O<'a>

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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 Display for O<'_>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> Freeze for O<'a>

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impl<'a> RefUnwindSafe for O<'a>

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impl<'a> Send for O<'a>

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impl<'a> Sync for O<'a>

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impl<'a> Unpin for O<'a>

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impl<'a> UnwindSafe for O<'a>

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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V