Vix++ for VS Code

VS Code support for Vix++ files.

Vix++ is a thin language layer for Vix-powered C++ applications. It uses .vix files and adds simple use imports on top of standard C++.

use vix.core;

using namespace vix;

int main()
{
  App app;

  app.get("/", [](Request &, Response &res){
    res.send("Hello, world");
  });

  app.run(8080);

  return 0;
}

This extension makes .vix files easier to write inside Visual Studio Code.

Features

• .vix file recognition
• Vix++ syntax highlighting
• C++-style editing support
• Vix++ snippets
• Run current .vix file
• Build current .vix file
• Check current .vix file
• Basic diagnostics from vix++ check

Why this extension exists

Without this extension, VS Code may treat .vix files like unknown text or try to analyze them as regular C++.

That can create false errors around Vix++ syntax such as:

use vix.core;

This extension gives .vix files their own language id:

vix

So the editor can understand Vix++ syntax without confusing it with raw C++.

Requirements

You need Vix++ installed and available in your terminal:

vix++ version

Vix++ itself delegates builds to Vix, so vix should also be available:

vix --version

Default commands used by the extension: vix++ and vix. You can change both paths in VS Code settings.

Commands

Open a .vix file, then use the Command Palette.

• Vix++: Run Current File
• Vix++: Build Current File
• Vix++: Check Current File

Run

Runs the current file:

vix++ run current-file.vix

Build

Builds the current file:

vix++ build current-file.vix

Check

Checks the current file and reports diagnostics in VS Code:

vix++ check current-file.vix

Settings

vixpp.vixppPath

Path to the vix++ executable.

Default:

"vixpp.vixppPath": "vix++"

Example:

"vixpp.vixppPath": "/usr/local/bin/vix++"

vixpp.vixPath

Path to the vix executable used by vix++.

Default:

"vixpp.vixPath": "vix"

Example:

"vixpp.vixPath": "/usr/local/bin/vix"

vixpp.buildDir

Directory used by Vix++ for generated C++ files.

Default:

"vixpp.buildDir": ".vix/build/vixpp"

Example:

"vixpp.buildDir": ".vix/generated"

Snippets

The extension includes snippets for common Vix++ patterns.

use

use vix.core;

main

use std.iostream;

int main()
{
  std::cout << "Hello from Vix++\n";
  return 0;
}

app

use vix.core;

using namespace vix;

int main()
{
  App app;

  app.get("/", [](Request &, Response &res){
    res.send("Hello, world");
  });

  app.run(8080);

  return 0;
}

get

app.get("/", [](Request &, Response &res){
  res.send("Hello, world");
});

jsonroute

app.get("/api/hello", [](Request &, Response &res){
  res.json({"message", "Hello from Vix++"});
});

Syntax support

The extension highlights:

• use declarations
• vix, std, and local import namespaces
• C++ keywords
• strings, numbers, comments
• preprocessor directives
• Vix runtime symbols and common Vix functions

Example:

use vix.core;
use std.iostream;
use local.config;

Diagnostics

The command Vix++: Check Current File runs:

vix++ check file.vix

If Vix++ prints diagnostics like this:

main.vix:6:1: error: import declarations must appear before regular C++ code
hint: move this use declaration to the top of the file

The extension shows them in the VS Code Problems panel.

Development

Install dependencies:

npm install

Compile:

npm run compile

Watch mode:

npm run watch

Package the extension:

npm run package

This generates a .vsix file.

Project structure

vixpp-vscode/
├── package.json
├── tsconfig.json
├── language-configuration.json
├── syntaxes/
│   └── vix.tmLanguage.json
├── snippets/
│   └── vix.json
├── src/
│   └── extension.ts
├── icons/
│   └── vixpp.svg
├── README.md
├── LICENSE
├── .gitignore
└── .vscodeignore

Design principle

The goal is simple: .vix files should feel native in VS Code.

This extension does not replace the Vix++ CLI. It only improves the editor experience.

vix++        -> language frontend and CLI
vixpp-vscode -> editor integration

Status

This extension is experimental.

Current focus:

• syntax highlighting
• snippets
• run/build/check commands
• basic diagnostics

Future improvements may include:

• autocomplete for use imports
• hover documentation
• go to generated C++ file
• formatting
• full Vix++ language server

License

MIT License. See the LICENSE file for details.

Author

Created by Gaspard Kirira
Source: [https://github.com/vixcpp/vixpp-vscode]