cl_interpret::builtin

Struct neg

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pub struct neg;
Expand description

Negates the ConValue

builtin! fn neg (tail) -> IResult<ConValue>
{
    Ok(match tail
    {
        ConValue::Empty => ConValue::Empty, ConValue::Int(v) =>
        ConValue::Int(v.wrapping_neg()), ConValue::Float(v) =>
        ConValue::Float(-v), _ => Err(Error::TypeError)?,
    })
}

Trait Implementations§

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impl BuiltIn for neg

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fn description(&self) -> &str

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impl Callable for neg

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fn call(&self, env: &mut Environment, args: &[ConValue]) -> IResult<ConValue>

Calls this Callable in the provided Environment, with ConValue args
The Callable is responsible for checking the argument count and validating types
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fn name(&self) -> Sym

Returns the common name of this identifier.
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impl Clone for neg

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fn clone(&self) -> neg

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for neg

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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 Freeze for neg

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impl RefUnwindSafe for neg

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impl Send for neg

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impl Sync for neg

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impl Unpin for neg

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impl UnwindSafe for neg

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.