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mType Documentation

mType is a statically typed, class-based language with a bytecode VM, an x86-64 JIT, a project / workspace build system, the mtpm package manager, a standalone language server, and a VS Code extension.

This documentation covers everything you need to write, build, and ship mType programs.

Where to Start​

  • Install — clone, build, and verify mType on Windows, Linux, or macOS.
  • Quick Start — your first script in under five minutes.
  • First Program — a guided walkthrough of a complete mType program.

What's Covered​

  • Language Reference — primitives, classes, interfaces, generics, lambdas, control flow, imports, annotations, async/await, pattern matching.
  • Standard Library — collections, streams, exceptions, math, networking, reflection, JSON, the mtest testing framework.
  • CLI Reference — every flag of the mType and mtpm executables.
  • Architecture — the compilation pipeline, VM, and JIT.
  • Contributing — repo layout, build setup, and project conventions.

At a Glance​

class Greeter {
    private string name;

    public constructor(string name) {
        this.name = name;
    }

    public function greet(): void {
        print($"Hello, {this.name}!");
    }
}

function main(): void {
    Greeter g = new Greeter("World");
    g.greet();
}

main();

Save as hello.mt, then:

mType hello.mt

Project Status​

mType ships as a source distribution. Builds run on Windows (MSVC v143), Linux (GCC), and macOS (Clang). The compiler, VM, JIT, language server, package manager, and VS Code extension source are all in the main repository. The standard library lives in matan45/mTypeLib and is mirrored under mType/tests/testFiles/lib/ for the test runner.

Known limitations are documented in Reference / Limitations.