Struct egg::AstSize

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pub struct AstSize;

Expand description

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

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impl<L: Language> CostFunction<L> for AstSize

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

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fn cost<C>(&mut self, enode: &L, costs: C) -> Self::Cost where
C: FnMut(Id) -> Self::Cost,

Calculates the cost of an enode whose children are Costs. Read more

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fn cost_rec(&mut self, expr: &RecExpr<L>) -> Self::Cost

Calculates the total cost of a RecExpr. Read more

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impl Debug for AstSize

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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<L: Language, N: Analysis<L>> LpCostFunction<L, N> for AstSize

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fn node_cost(&mut self, _egraph: &EGraph<L, N>, _eclass: Id, _enode: &L) -> f64

Returns the cost of the given e-node. Read more

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

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub 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

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub 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, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct egg::AstSize

Trait Implementations

impl<L: Language> CostFunction<L> for AstSize

type Cost = usize

fn cost<C>(&mut self, enode: &L, costs: C) -> Self::Cost where
C: FnMut(Id) -> Self::Cost,

fn cost_rec(&mut self, expr: &RecExpr<L>) -> Self::Cost

impl Debug for AstSize

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

impl<L: Language, N: Analysis<L>> LpCostFunction<L, N> for AstSize

fn node_cost(&mut self, _egraph: &EGraph<L, N>, _eclass: Id, _enode: &L) -> f64

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,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct egg::AstSize

Trait Implementations

impl<L: Language> CostFunction<L> for AstSize

type Cost = usize

fn cost<C>(&mut self, enode: &L, costs: C) -> Self::Cost where C: FnMut(Id) -> Self::Cost,

fn cost_rec(&mut self, expr: &RecExpr<L>) -> Self::Cost

impl Debug for AstSize

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

impl<L: Language, N: Analysis<L>> LpCostFunction<L, N> for AstSize

fn node_cost(&mut self, _egraph: &EGraph<L, N>, _eclass: Id, _enode: &L) -> f64

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,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn cost<C>(&mut self, enode: &L, costs: C) -> Self::Cost where
C: FnMut(Id) -> Self::Cost,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,