OpenQASM 3.0 Language Support for Visual Studio Code

This extension provides language support for OpenQASM 3.0 in Visual Studio Code.

Features

• Syntax Highlighting: Full semantic highlighting for QASM keywords, operators, gates, measurements, and more
• Language Server: Integrated LSP server for advanced language features
• Comment Support: Line and block comments
• Code Formatting: Basic formatting support

Coming Soon:

• Linting support
• Auto-completion
• Smart indentation
• Additional language server features

Supported Token Types

• Keywords (OPENQASM, include, gate, measure, etc.)
• Operators (+, -, *, /, ==, ->, etc.)
• Numbers and strings
• Comments (// and /* */)
• Gates and measurements
• Registers (qubit, bit, etc.)
• Builtin functions and constants

Installation

1. Install the extension from the VSCode marketplace
2. Open any .qasm file to activate language support

Usage

Create or open a .qasm file:

OPENQASM 3.0;
include "stdgates.inc";

// Initialize qubits
qubit[2] q;
bit[2] c;

// Apply gates
h q[0];
cx q[0], q[1];

// Measure
measure q -> c;

Requirements

• VSCode 1.60.0 or higher

Contributing

This extension is part of the qasmtools project.

License

Apache License 2.0