/// <reference types="./expression.d.ts" />
import { isOperationNodeSource, } from '../operation-node/operation-node-source.js';
import { isObject, isString } from '../util/object-utils.js';
export function isExpression(obj) {
    return isObject(obj) && 'expressionType' in obj && isOperationNodeSource(obj);
}
export function isAliasedExpression(obj) {
    return (isObject(obj) &&
        'expression' in obj &&
        isString(obj.alias) &&
        isOperationNodeSource(obj));
}