/****************************************************************************** * Copyright 2021 TypeFox GmbH * This program and the accompanying materials are made available under the * terms of the MIT License, which is available in the project root. ******************************************************************************/ import type { CstNode } from '../syntax-tree.js'; export class ErrorWithLocation extends Error { constructor(node: CstNode | undefined, message: string) { super(node ? `${message} at ${node.range.start.line}:${node.range.start.character}` : message); } } export function assertUnreachable(_: never): never { throw new Error('Error! The input value was not handled.'); }