46 lines
1.2 KiB
JavaScript
46 lines
1.2 KiB
JavaScript
'use strict'
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module.exports = errSerializer
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const { messageWithCauses, stackWithCauses, isErrorLike } = require('./err-helpers')
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const { pinoErrProto, pinoErrorSymbols } = require('./err-proto')
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const { seen } = pinoErrorSymbols
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const { toString } = Object.prototype
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function errSerializer (err) {
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if (!isErrorLike(err)) {
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return err
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}
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err[seen] = undefined // tag to prevent re-looking at this
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const _err = Object.create(pinoErrProto)
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_err.type = toString.call(err.constructor) === '[object Function]'
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? err.constructor.name
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: err.name
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_err.message = messageWithCauses(err)
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_err.stack = stackWithCauses(err)
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if (Array.isArray(err.errors)) {
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_err.aggregateErrors = err.errors.map(err => errSerializer(err))
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}
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for (const key in err) {
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if (_err[key] === undefined) {
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const val = err[key]
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if (isErrorLike(val)) {
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// We append cause messages and stacks to _err, therefore skipping causes here
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if (key !== 'cause' && !Object.prototype.hasOwnProperty.call(val, seen)) {
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_err[key] = errSerializer(val)
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}
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} else {
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_err[key] = val
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}
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}
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}
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delete err[seen] // clean up tag in case err is serialized again later
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_err.raw = err
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return _err
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}
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