Auto Lang

Auto VSCode

VSCode的Auto语言插件。

Features (v0.2.0)

✅ Language Server Protocol (LSP) Support

Enhanced Code Completion
- Context-aware completion for types, functions, variables, and members
- User-defined types and functions extracted from AST
- Trigger character support for . (member access)
- Scope-aware type inference for local variables inside functions
- Member completions show fields and methods for custom types
Hover Information
- Hover over keywords shows usage documentation with examples
- Hover over types shows type descriptions
- Hover over stdlib functions shows signatures and examples
- Hover over user-defined types, functions, methods, and fields
- Scope-aware hover for local variables inside function scopes
Go to Definition
- Navigate to function definitions (F12 or Ctrl+Click)
- Navigate to type definitions
- Navigate to variable declarations
- Navigate to type methods and fields
- Symbol map built from parsed AST with precise locations
Diagnostics
- Real-time error checking as you type
- Syntax errors appear in red squigglies
- Error messages show in Problems panel
- Line-based error location with timeout protection

✅ Syntax Highlighting

AutoLang syntax highlighting for .at, .as, .ac files
TextMate grammar for comprehensive token coverage

Installation

From Visual Studio Marketplace (Recommended)

Open VSCode
Press Ctrl+Shift+X to open Extensions
Search for "Auto Lang"
Click Install

Manual Installation

Download the latest .vsix file from Releases
In VSCode:
- Press Ctrl+Shift+P
- Type "Install from VSIX"
- Select the downloaded .vsix file

Development

See README-LSP.md for LSP development and testing instructions.

Quick Start

Create a new file called test.at

Start typing AutoLang code:

type Point {
    x int
    y int

    fn square() int {
        x * x + y * y
    }
}

fn main() {
    let p Point = Point { x: 3, y: 4 }
    p.  // Type dot to see completions for x, y, square
}

Try these features:
- Hover: Hover over Point, square, or p to see documentation
- Go to Definition: Press F12 on square to jump to its definition
- Completion: Type p. to see available fields and methods
- Diagnostics: Type invalid syntax to see error highlighting

Version History

See CHANGELOG.md for detailed version history.

v0.2.0 (2025-01-15)

Added enhanced code completion with scope-aware type inference
Added hover information for all symbols
Added go-to-definition navigation
Added real-time diagnostics
Fixed critical document synchronization bug

v0.1.0 (2025-01-14)

Initial LSP implementation with basic code completion

v0.0.3

Initial syntax highlighting support

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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