An unhandled rejected promise is causing issues with my VSCode extension.
I'm puzzled as to why the error dialog doesn't appear when running the command in this extension:
'use strict';
import {commands, window, ExtensionContext} from 'vscode';
export function activate(context: ExtensionContext) {
let cmd = commands.registerCommand('extension.sayHello', sayHello)
context.subscriptions.push(cmd);
}
function sayHello() {
doSomethingAsync('hello')
.then(res => window.showInformationMessage('Success!'))
.catch(err => window.showErrorMessage(err))
}
function doSomethingAsync(value:string): Promise<string> {
return new Promise<string>((resolve, reject) => {
setTimeout(function() {
reject(new Error('Rejected!'))
}, 250);
});
}The same code in vanilla Typescript works fine:
'use strict';
function sayHello() {
doSomethingAsync('hello')
.then(res => console.log('Success!'))
.catch(err => console.error('Failed!', err))
}
function doSomethingAsync(value: string): Promise<string> {
return new Promise<string>((resolve, reject) => {
setTimeout(function() {
reject(new Error('Rejected!'))
}, 250);
});
}
sayHello()Output:
$ node --version && tsc --version && code --version
v8.1.3
Version 2.3.4
1.13.1
379d2efb5539b09112c793d3d9a413017d736f89
$ ls ~/.vscode/extensions/
$ tsc -p ./ && node out/src/reject.js
Failed! Error: Rejected!
at Timeout._onTimeout (/Users/mike/Source/vscode/extensions/issues/vscode-unhandled-promise/out/src/reject.js:9:20)
at ontimeout (timers.js:488:11)
at tryOnTimeout (timers.js:323:5)
at Timer.listOnTimeout (timers.js:283:5)