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Quick Start

Get from zero to a running program in five minutes.

1. Write a Script​

Save this as hello.mt:

import * from "lib/collections/ArrayList.mt";

class Person {
    private string name;
    private int age;

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

    public function toString(): string {
        return $"{this.name} (age {this.age})";
    }
}

function main(): void {
    ArrayList<Person> people = new ArrayList<Person>();
    people.add(new Person("Alice", 30));
    people.add(new Person("Bob", 25));
    for (Person p : people) {
        print(p.toString());
    }
}

main();

2. Run It​

Direct interpretation:

mType hello.mt

Output:

Alice (age 30)
Bob (age 25)

3. Compile to Bytecode​

mType compiles .mt source to .mtc bytecode and can re-run the bytecode without touching the source:

mType --compile hello.mt
mType --run-cached hello.mtc

The bytecode is portable across mType installs of the same version.

4. Disable JIT (Optional)​

The x86-64 JIT runs by default. To disable it (for benchmarking or debugging the interpreter loop):

mType --no-jit hello.mt

5. Inspect Statistics​

mType --gc-stats  hello.mt
mType --jit-stats hello.mt
mType --profile   hello.mt

What's Next​