import { IfcExpressionContext } from "../context/IfcExpressionContext.js";
import { ExprBase } from "./ExprBase.js";
import { ExprKind } from "./ExprKind.js";
import { ExprEvalError, ExprEvalResult } from "./ExprEvalResult.js";
import { Expr } from "./Expr.js";
export declare abstract class Expr2LeftBeforeRight<L, R, E> extends ExprBase<E> {
    readonly left: Expr<L>;
    readonly right: Expr<R>;
    protected constructor(exprKind: ExprKind, left: Expr<L>, right: Expr<R>);
    getChildren(): Array<Expr<any>>;
    protected abstract doEvaluate(ctx: IfcExpressionContext, leftOperand: L, rightOperand: R): E | ExprEvalError;
    protected abstract handleLeftResult(leftResult: ExprEvalResult<L>): any;
    evaluate(ctx: IfcExpressionContext, localCtx: Map<string, any>): ExprEvalResult<E>;
    protected handleError(error: any, leftResult: ExprEvalResult<L>, rightResult: ExprEvalResult<R>): ExprEvalError;
}