TypeScript Version:
1.8.x
Code
// A self-contained demonstration of the problem follows...
function createDefaultProperties(): { [name: string]: any } {
const startTime = Date.now();
let eventCounter = 0;
return {
get ['common.sequenceId']() { return eventCounter++; },
get timestamp() { return new Date(); },
get ['common.timesincesessionstart']() { return Date.now() - startTime; }
};
}
- open playground website
- paste code above
- it crashes like so:
Object {stack: "TypeError: Cannot read property 'declarations' of …script/common/lib/typescriptServices.js:19:13310)", message: "TypeError: Cannot read property 'declarations' of undefined"}
message
:
"TypeError: Cannot read property 'declarations' of undefined"
stack
:
"TypeError: Cannot read property 'declarations' of undefined↵ at e.checkNode (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:1:30909)↵ at t.e._checkNodeOrToken (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:2:2107)↵ at t.e._visit (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:2:1801)↵ at https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:2:1853↵ at r (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/lib/typescriptServices.js:19:10966)↵ at Object.i [as forEachChild] (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/lib/typescriptServices.js:19:14002)↵ at t.e._visit (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:2:1824)↵ at https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/typescriptWorker2.js:2:1853↵ at a (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/lib/typescriptServices.js:19:11081)↵ at Object.i [as forEachChild] (https://www.typescriptlang.org/play/Script/vs/languages/typescript/common/lib/typescriptServices.js:19:13310)"
__proto__
:
Object
TypeScript Version:
1.8.x
Code