Core language

Imports and packages

Import modules and use the main namespace families.

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What

Imports let you pull shared code into the current file: standard features from @std and lower-level building blocks from musi:* when needed.

This keeps code short and reusable while avoiding copy-paste or duplicated helpers.

Add imports at the top of your file, then use imported names directly in regular expressions.

Import the standard library, then reach the family you need. Musi keeps stdlib access explicit through @std.

Musi package imports are values, so @std becomes a normal binding you can pass around.

import java.util.Optional;

let Std := import "@std";
let Option := Std.Option;

use std::option::Option;

import { readFileSync } from "node:fs";

Use imports in most new files.

Like Python imports or TypeScript module imports: one place for shared functionality, one place for lower-level tools.

Replace duplicated snippets with imported names, then continue to Data and pattern matching.

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