Wrong blank node ids with custom data factory when mixing node identifiers with implicit blank nodes

[bergos]

The parser uses the wrong blank nodes or blank node identifiers if explicit blank nodes with node identifiers and implicit blank nodes are mixed and combined with a custom data factory. Below is a full example with JSON-LD data, the current output and the expected output. The expected output was validated with jsonld.js.

example.js:

import { createReadStream } from 'node:fs'
import toNT from '@rdfjs/to-ntriples'
import { JsonLdParser } from 'jsonld-streaming-parser'
import rdf from 'rdf-ext'

async function main () {
  const input = createReadStream('data.json')
  const parser = new JsonLdParser({ dataFactory: rdf })

  input.pipe(parser)
    .on('data', q => console.log(toNT(q)))
    .on('error', console.error)
}

main()

data.json:

{
  "@context": {
    "sh": "http://www.w3.org/ns/shacl#"
  },
  "sh:result": [
    {
      "sh:focusNode": {
        "@id": "ex:Alice"
      },
      "sh:sourceShape": {
        "@id": "_:b1"
      }
    }
  ]
}

current.ttl:

_:b1 <http://www.w3.org/ns/shacl#focusNode> <ex:Alice> .
_:b1 <http://www.w3.org/ns/shacl#sourceShape> _:b1 .
_:b2 <http://www.w3.org/ns/shacl#result> _:b1 .

expected.ttl:

_:b0 <http://www.w3.org/ns/shacl#result> _:b1 .
_:b1 <http://www.w3.org/ns/shacl#focusNode> <ex:Alice> .
_:b1 <http://www.w3.org/ns/shacl#sourceShape> _:b2 .