[−][src]Struct egg::AstSize
A simple CostFunction that counts total ast size.
let e: RecExpr<SymbolLang> = "(do_it foo bar baz)".parse().unwrap(); assert_eq!(AstSize.cost_rec(&e), 4);
Trait Implementations
impl<L: Language> CostFunction<L> for AstSize[src]
type Cost = usize
The Cost type. It only requires PartialOrd so you can use floating point types, but failed comparisons (NaNs) will result in a panic. Read more
fn cost<C>(&mut self, enode: &L, costs: C) -> Self::Cost where
C: FnMut(Id) -> Self::Cost, [src]
C: FnMut(Id) -> Self::Cost,
fn cost_rec(&mut self, expr: &RecExpr<L>) -> Self::Cost[src]
Auto Trait Implementations
impl RefUnwindSafe for AstSize
impl Send for AstSize
impl Sync for AstSize
impl Unpin for AstSize
impl UnwindSafe for AstSize
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> 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, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,