69 lines
2.0 KiB
TypeScript
69 lines
2.0 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { CancellationToken, ResponseError, ErrorCodes } from 'vscode-languageserver';
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export function formatError(message: string, err: any): string {
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if (err instanceof Error) {
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let error = <Error>err;
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return `${message}: ${error.message}\n${error.stack}`;
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} else if (typeof err === 'string') {
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return `${message}: ${err}`;
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} else if (err) {
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return `${message}: ${err.toString()}`;
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}
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return message;
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}
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export function runSafeAsync<T>(func: () => Thenable<T>, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<any>> {
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return new Promise<T | ResponseError<any>>((resolve) => {
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setImmediate(() => {
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if (token.isCancellationRequested) {
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resolve(cancelValue());
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}
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return func().then(result => {
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if (token.isCancellationRequested) {
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resolve(cancelValue());
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return;
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} else {
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resolve(result);
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}
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}, e => {
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console.error(formatError(errorMessage, e));
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resolve(errorVal);
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});
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});
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});
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}
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export function runSafe<T, E>(func: () => T, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<E>> {
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return new Promise<T | ResponseError<E>>((resolve) => {
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setImmediate(() => {
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if (token.isCancellationRequested) {
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resolve(cancelValue());
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} else {
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try {
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let result = func();
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if (token.isCancellationRequested) {
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resolve(cancelValue());
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return;
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} else {
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resolve(result);
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}
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} catch (e) {
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console.error(formatError(errorMessage, e));
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resolve(errorVal);
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}
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}
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});
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});
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}
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function cancelValue<E>() {
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console.log('cancelled');
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return new ResponseError<E>(ErrorCodes.RequestCancelled, 'Request cancelled');
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}
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