LinkedQL

[iddan]

Resolves #877 Resolves #835 Resolves #852 Resolves #311

This change is 

[iddan]

Status of implementation:

• graph.Morphism()
  • [x] Implementation
  • [x] Test
• graph.Vertex([nodeId],[nodeId]...)
  • [x] Implementation
  • [x] Test
• path.and(path)
  • [x] Implementation
  • [x] Test
• path.as(tags)
  • [x] Implementation
  • [x] Test
• path.back([tag])
  • [x] Implementation
  • [x] Test
• path.both([predicatePath], [tags])
  • [x] Implementation
  • [x] Test
• path.count()
  • [x] Implementation
  • [x] Test
• path.difference(path)
  • [x] Implementation
  • [x] Test
• path.except(path)
  • [x] Implementation
  • [x] Test
• path.filter(args)
  • [x] Implementation
  • [x] Test
• path.follow(path)
  • [x] Implementation
  • [ ] Test
• path.followR(path)
  • [x] Implementation
  • [ ] Test
• [ ] path.followRecursive(*)
  • [ ] Implementation
  • [ ] Test
• path.has(predicate, object)
  • [x] Implementation
  • [x] Test
• path.hasR(*)
  • [x] Implementation
  • [x] Test
• path.in([predicatePath], [tags])
  • [x] Implementation
  • [x] Test
• path.inPredicates()
  • [x] Implementation
  • [x] Test
• path.intersect(path)
  • [x] Implementation
  • [x] Test
• path.is(node, [node..])
  • [x] Implementation
  • [x] Test
• [ ] path.labelContext([labelPath], [tags])
  • [ ] Implementation
  • [ ] Test
• path.labels()
  • [x] Implementation
  • [ ] Test
• path.limit(limit)
  • [x] Implementation
  • [x] Test
• path.out([predicatePath], [tags])
  • [x] Implementation
  • [x] Test
• path.outPredicates()
  • [x] Implementation
  • [x] Test
• path.save(predicate, tag)
  • [x] Implementation
  • [x] Test
• path.saveInPredicates(tag)
  • [x] Implementation
  • [x] Test
• path.saveOpt(*)
  • [x] Implementation
  • [x] Test
• path.saveOptR(*)
  • [x] Implementation
  • [x] Test
• path.saveOutPredicates(tag)
  • [x] Implementation
  • [x] Test
• path.saveR(*)
  • [x] Implementation
  • [x] Test
• path.skip(offset)
  • [x] Implementation
  • [x] Test
• path.tag(tags)
  • [x] Implementation
  • [x] Test
• path.tagArray(*)
  • [x] Implementation
  • [x] Test
• path.value()
  • [x] Implementation
  • [x] Test
• path.tagValue()
  • [x] Implementation
  • [x] Test
• path.union(path)
  • [x] Implementation
  • [x] Test
• path.unique()
  • [x] Implementation
  • [x] Test
• path.order()
  • [x] Implementation
  • [x] Test

[iddan]

@dennwc I'd like your help with Morphism. I'll try to reduce panics and cover more parts of the code with testing soon but I think we can start the review process.

[iddan]

I see what you say. But I think the steps should reflect the API exposed. Specifically, I think .skip().limit() is a good API. I think two guidelines are similarity to Gremlin API and simplicity.

[iddan]

@dennwc I think I got rid of the last problematic panic()

[iddan]

@dennwc I think for now we can leave Properties to accept only IRIs until we make changes for morphism.

[iddan]

@dennwc we should make properties with empty iri set to save all properties