A Specialized
Backend Language.
XCX 2.2 introduces Cranelift-based JIT compilation, NaN-boxed values, and SSRF protection — delivering up to 293x speedup on hot code paths while maintaining a tiny memory footprint.
Focused & Technical
XCX implements high-level abstractions for common backend tasks. The language provides native syntax for HTTP responses, fiber-based state suspension, and relational data processing.
- • Custom Rust-based VM
- • Path-sandboxed file I/O
- • Standard library crypto modules
fiber handle_login(json: req -> json) {
json: body;
req.bind("body", body);
s: username;
body.bind("username", username);
s: pass_hash = crypto.hash(body.get("pass"), "argon2");
--- Yield a 200 response
yield net.respond(200, <<< {"ok": true} >>>);
};
Core Capabilities
Static Typing
Standard type system including Integers, Floats, Strings, and Booleans to assist with basic error checking.
Cooperative Fibers
Implementation of lightweight coroutines that yield control explicitly for specific concurrency patterns.
Relational Tables
Support for native table and row types with basic relational operations like where and join.
JSON Support
Dedicated block literals and methods for parsing and manipulating JSON data structures.
Custom VM
Executes on a stack-based virtual machine written in Rust, following a multi-stage compilation pipeline.
Package Manager
PAX provides basic dependency management and project scaffolding.