Trait egg::Searcher

pub trait Searcher<L, N> where
    L: Language,
    N: Analysis<L>, {
    fn search_eclass(
        &self, 
        egraph: &EGraph<L, N>, 
        eclass: Id
    ) -> Option<SearchMatches>;
    fn vars(&self) -> Vec<Var>;

    fn search(&self, egraph: &EGraph<L, N>) -> Vec<SearchMatches> { ... }
}

The lefthand side of a Rewrite.

A Searcher is something that can search the egraph and find matching substititions. Right now the only significant Searcher is Pattern.

Required methods

fn search_eclass(
    &self,
    egraph: &EGraph<L, N>,
    eclass: Id
) -> Option<SearchMatches>

Search one eclass, returning None if no matches can be found. This should not return a SearchMatches with no substs.

fn vars(&self) -> Vec<Var>

Returns a list of the variables bound by this Searcher

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Provided methods

fn search(&self, egraph: &EGraph<L, N>) -> Vec<SearchMatches>

Search the whole EGraph, returning a list of all the SearchMatches where something was found. This just calls search_eclass on each eclass.

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Implementors

impl<L: Language, A: Analysis<L>> Searcher<L, A> for Pattern<L>

fn search(&self, egraph: &EGraph<L, A>) -> Vec<SearchMatches>

fn search_eclass(
    &self,
    egraph: &EGraph<L, A>,
    eclass: Id
) -> Option<SearchMatches>

fn vars(&self) -> Vec<Var>

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