Ensure CodeMirror 6.0 / Obsidian 0.15.0 compatibility

[Taitava]

This is not an actual idea, but a plan to check if SC is compliant with Obsidian 0.15.0 which includes a stable version of CodeMirror 6.0. (I actually thought that CM was already stable now, but a stable version of it was released in this month).

Licat has posted the following list of major changes in CM 6.0 to the Obsidian forum:

• Prec.fallback/override/extend is now Prec.highest/high/lowest.
• blockAtHeight, visualLineAtHeight, viewportLines, visualLineAt are now deprecated. The replacements work slightly differently but they should be lineBlockAtHeight, viewportLineBlocks and lineBlockAt.
• Syntax trees iterate function has changed signature from 3 parameters (node, from, to) to a single object parameter (obj: {node, type, from, to}) (details)
• scrollPosIntoView, scrollTo, and centerOn is now scrollIntoView
• Plugin fields no longer exist, and providing decorations from a view plugin now happens by providing a function to the EditorView.decorations facet. Same for atomic ranges and scroll margins — you must use a facet for them now.
• Many packages has been merged into other packages:
  • text and rangeset are merged into state.
  • tooltip, gutter, panel, and rectangular-selection are merged into view.
  • matchbrackets, stream-parser, fold are merged into language. The custom exports from stream-parser are now available at lishid/cm-language 2.
  • comment and history are merged into commands.
  • closebrackets is merged into autocomplete.
  • highlight is split into language and @lezer/highlight.

TODO: I will go through each of the items later and comment on each one if I think they might require any actions. I cannot do practical testing yet, as Obsidian 0.15.0 is still in Insider build state, and I'm not an insider. But there are quite many items in the list I can be almost certain won't cause problems because I think I haven't used them in this plugin. But I'll write the comments later.

[Taitava]

My remarks on the changes

Legend:
✔: No actions required

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• Prec.fallback/override/extend is now Prec.highest/high/lowest.

✔ I didn't see Prec used in SC.

• blockAtHeight, visualLineAtHeight, viewportLines, visualLineAt are now deprecated. The replacements work slightly differently but they should be lineBlockAtHeight, viewportLineBlocks and lineBlockAt.

✔ I didn't see blockAtHeight, visualLineAtHeight, viewportLines or visualLineAt used in SC.

• Syntax trees iterate function has changed signature from 3 parameters (node, from, to) to a single object parameter (obj: {node, type, from, to}) (details)

✔ I didn't see iterate used in SC.

• scrollPosIntoView, scrollTo, and centerOn is now scrollIntoView

✔ I didn't see scrollPosIntoView, scrollTo or centerOn used in SC.

• Plugin fields no longer exist, and providing decorations from a view plugin now happens by providing a function to the EditorView.decorations facet. Same for atomic ranges and scroll margins — you must use a facet for them now.

✔ I think this does not affect SC. At least Open a file output channel works well and is able to select text in the opened file.

• Many packages has been merged into other packages:

  • text and rangeset are merged into state.
  • tooltip, gutter, panel, and rectangular-selection are merged into view.
  • matchbrackets, stream-parser, fold are merged into language. The custom exports from stream-parser are now available at lishid/cm-language 2.
  • comment and history are merged into commands.
  • closebrackets is merged into autocomplete.
  • highlight is split into language and @lezer/highlight.

✔ I think these are ok, because TypeScript compiler did not yell about them.

[Taitava]

Conclusion

I think no changes are needed.

I moved this discussion from Ideas to Notes.