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yaroschiffelers/enhanceStackTrace.js

Created July 19, 2019 17:32
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Enhance Stack Trace Method (from nodejs/node/lib/events.js)
Raw
enhanceStackTrace.js
function enhanceStackTrace(err, own) {
const sep = '\nEmitted \'error\' event at:\n';
const errStack = err.stack.split('\n').slice(1);
const ownStack = own.stack.split('\n').slice(1);
const [ len, off ] = identicalSequenceRange(ownStack, errStack);
if (len > 0) {
ownStack.splice(off + 1, len - 2,
' [... lines matching original stack trace ...]');
}
return err.stack + sep + ownStack.join('\n');
}
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