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Infix

Struct Infix 

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pub struct Infix {
    pub op: &'static str,
    pub power: (u8, u8),
    pub callee: &'static str,
}
Expand description

What an infix operator binds like, and what it lowers to.

One row per operator, carrying both facts. Precedence and callee used to live apart, and the cost was immediate: the surface spelling was emitted verbatim, so a == b lowered to (== a b) — a symbol no interpreter binds — and the program died at runtime with unbound symbol ==. Splitting the two invites exactly that: add an operator to the precedence table, forget the lowering, ship a parse that cannot run. Joined here, “has a precedence” and “has a callee” are the same fact.

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§op: &'static str

Surface spelling.

§power: (u8, u8)

Left and right binding power. Higher binds tighter.

§callee: &'static str

The tatara-lisp callee this lowers to.

Trait Implementations§

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impl Clone for Infix

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fn clone(&self) -> Infix

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for Infix

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impl Debug for Infix

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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 Freeze for Infix

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impl RefUnwindSafe for Infix

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impl Send for Infix

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impl Sync for Infix

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impl Unpin for Infix

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impl UnsafeUnpin for Infix

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impl UnwindSafe for Infix

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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.