Previous source map could be stored with each added file as string, object, Consumer or generator. https://github.com/postcss/postcss/blob/master/lib/previous-map.es6#L90-L130 for more info.
Previous source map could be stored with each added file as string, object, Consumer or generator.
https://github.com/postcss/postcss/blob/master/lib/previous-map.es6#L90-L130 for more info.