Wiz language service and LSP

This repository provides reusable editor intelligence and the Language Server Protocol transport for .wiz and .d.wiz files.

Published packages:

• @wiz-sh/language-service owns snapshots, document and project state, diagnostics, navigation, completions, signature help, semantic tokens, code actions, and formatting edits.
• @wiz-sh/lsp maps the language service to JSON-RPC/LSP and exposes the wiz-lsp executable.

Semantic logic stays in the language service. Protocol handlers only translate documents, positions, requests, responses, and workspace lifecycle events.

Features

• Syntax, binding, type, configuration, and lint diagnostics
• Hover, definitions, references, and cross-file sourced-module navigation
• Contextual completion and signature help
• Rename and document symbols
• Semantic tokens
• Whole-document and range formatting
• Quick fixes and code actions
• Incremental open/change/close document handling

The project graph follows statically resolved source relationships and companion declaration files, so symbols and documentation are available across project files instead of only in the active buffer.

Run

bun add --global @wiz-sh/lsp
wiz-lsp --stdio

Most users start the server through wiz lsp --stdio or the VS Code extension.

Development

bun install
bun run check
bun run build

Protocol-level tests cover initialization, document synchronization, every advertised editor feature, sourced-file intelligence, and malformed requests. Licensed under MIT.