✨ Semantic Highlights #1950

Description

Language servers can provide additional, detailed, highlights for code called 'semantic tokens'. These provide more contextual information about symbols. For instance, the different between a global constant and a constant variable.

These should work together with tree-sitter highlights to improve syntax highlighting clarity and quality.

Alternatives Considered

Not supporting semantic highlights 👎

Additional Context

This will be implemented in a few phases:

• Start with work in the editor to support multiple highlighters: Multiple Highlighter Support CodeEditSourceEditor#273
• Add the ability to read semantic tokens from language servers: LSP Semantic Token Decoder, Improve LSP-CodeFileDoc Arch #1951.
• Add a mapping from LSP semantic tokens to the editor's highlight providing protocol

Related issues:

• ✨ Language Server Protocol Integration CodeEditSourceEditor#40

Screenshots

From VSCode's semantic highlight guide:

Without semantic highlights:

With semantic highlights: