Использование может обернуть ошибки на каждом уровне обещания. Я приковал ошибки в TraceError:
class TraceError extends Error {
constructor(message, ...causes) {
super(message);
const stack = Object.getOwnPropertyDescriptor(this, 'stack');
Object.defineProperty(this, 'stack', {
get: () => {
const stacktrace = stack.get.call(this);
let causeStacktrace = '';
for (const cause of causes) {
if (cause.sourceStack) { // trigger lookup
causeStacktrace += `\n${cause.sourceStack}`;
} else if (cause instanceof Error) {
causeStacktrace += `\n${cause.stack}`;
} else {
try {
const json = JSON.stringify(cause, null, 2);
causeStacktrace += `\n${json.split('\n').join('\n ')}`;
} catch (e) {
causeStacktrace += `\n${cause}`;
// ignore
}
}
}
causeStacktrace = causeStacktrace.split('\n').join('\n ');
return stacktrace + causeStacktrace;
}
});
// access first error
Object.defineProperty(this, 'cause', {value: () => causes[0], enumerable: false, writable: false});
// untested; access cause stack with error.causes()
Object.defineProperty(this, 'causes', {value: () => causes, enumerable: false, writable: false});
}
}
Использование
throw new TraceError('Could not set status', srcError, ...otherErrors);
Выход
[/g0]
Функции
TraceError#cause - first error
TraceError#causes - list of chained errors