Language Server Overview

clice provides a suite of C++ development tools built on LLVM/Clang. This section documents what's implemented, what's planned, and links to relevant upstream issues.

Features

Language Server Protocol features available when using clice as an editor backend.

Feature	Status
Code Completion	54 supported
Hover	37 supported20 partial10 unsupported
Signature Help	14 supported
Code Navigation	54 supported12 partial30 unsupported
Document Links	7 supported1 partial1 unsupported
Semantic Tokens	56 supported2 partial10 unsupported
Inlay Hints	31 supported6 partial4 unsupported
Folding Ranges	24 supported
Document Symbols	20 supported1 partial6 unsupported
Formatting	Implemented
Diagnostics	Partial
Code Action	57 supported

Legend

Fixture-backed features count the documented capabilities their test corpus pins at each status:

• supported — the capability works; a snapshot pins the behavior
• partial — incomplete; the snapshot pins what works today
• unsupported — a documented gap, tracked but not yet implemented

Features not yet on the fixture pipeline keep a hand-assigned label:

• Implemented — core functionality working, minor gaps only
• Partial — key subsystems missing (e.g., module support)
• Stub — handler exists but returns empty/null
• Planned — designed but not yet implemented