import type * as Ast from "../ast/ast";
import type { AstUtil } from "../ast/util";
export interface ExpressionTransformer {
    util: AstUtil;
    applyRules(ast: Ast.Expression): Ast.Expression;
}
export declare abstract class Rule {
    abstract applyRule(ast: Ast.Expression, optimizer: ExpressionTransformer): Ast.Expression;
}