'use strict'
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const extractError = require('./extractWebpackError')
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/**
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* Applies all transformers to all errors and returns "annotated"
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* errors.
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*
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* Each transformer should have the following signature WebpackError => AnnotatedError
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*
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* A WebpackError has the following fields:
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* - message
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* - file
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* - origin
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* - name
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* - severity
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* - webpackError (original error)
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*
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* An AnnotatedError should be an extension (Object.assign) of the WebpackError
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* and add whatever information is convenient for formatting.
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* In particular, they should have a 'priority' field.
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*
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* The plugin will only display errors having maximum priority at the same time.
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*
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* If they don't have a 'type' field, the will be handled by the default formatter.
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*/
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function processErrors (errors, transformers) {
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const transform = (error, transformer) => transformer(error)
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const applyTransformations = (error) => transformers.reduce(transform, error)
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return errors.map(extractError).map(applyTransformations)
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}
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module.exports = processErrors
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