ONE Language for Visual Studio Code

Official Visual Studio Code extension providing rich language intelligence and editing support for ONE Language (.one) source files.

Features

1. Syntax Highlighting

Full TextMate grammar support for the dual declarative-spatial and computational paradigms of ONE Language:

• Spatial Computing Directives: @Space, @Grid777, @Slice, @memview, @seal, @gossip, @assert_rss, @actuation_lock
• Spatial Declarations: node, stream, align, checkpoint, seal, funnel, channel, rss_max
• Declarations: let, const, struct, enum, class, constructor, method, function, fn, native, private, public
• Control Flow & Async: if, else, while, for, return, async, await
• Multi-File Modules: module, import, export, from, as
• Operators & Flow: Funnel (->), Align (=>), comparison, arithmetic, and logical operators
• Standard Library: Built-in functions (len, push, pop, keys, values, readFile, writeFile, etc.)

2. Real-Time Diagnostics

Integrated with ONE Language's compiler and semantic analyzer:

• Instant syntax error detection with line and column highlighting
• Type-checking diagnostics and missing symbol detection
• Actuation lockout and Address369 boundary validation

3. Contextual Autocomplete & Completions

• Language keywords and spatial directives
• Standard library built-ins with signatures
• Local variables and functions declared in the current document

4. Hover Documentation

• Hover over keywords to view language documentation
• Hover over functions and variables to view inferred types and signatures

5. Go-to-Definition

• Jump directly to variable, parameter, and function declarations in the file

6. Rich Code Snippets

Built-in snippets for rapid development:

• fn / fn-async: Function declarations
• struct: Data struct definitions
• enum: Numeric/symbolic enums
• node: 343-voxel spatial node definitions
• channel: Gossip channel connections
• seal: Merkle state checkpoints and cryptographic seals
• import / export: Multi-file module statements

7. Editor Commands

• ONE: Run Current File — Execute the active .one file on UnifiedVM
• ONE: Check Current File Syntax & Types — Run static type checking and analysis

Requirements

• Visual Studio Code version 1.80.0 or higher.

Known Limitations

• Language Server Architecture: Language intelligence operates via an integrated in-process compiler engine (OneLanguageServer). Standalone JSON-RPC stdio daemon support is planned for future distributed tooling releases.
• Cross-File Definition Jumps: Go-to-definition currently navigates symbols within the active workspace document.

License

MIT OR Apache-2.0