Modules

For most of the programming languages in the world, users need to install a package manager (npm/yarn for JavaScript, pip/condo for Python, cargo for Rust) to install a package/module before using/compiling in the source code.

In the Hedegehog Lab, users do not need to install any packages or modules. All the packages and modules are configured automatically during runtime. No additional installations or configurations are needed, if you can add/deploy your module in following ways:

Import registered modules module: function

Hedgehog Lab has a built-in module registry, which is a list of modules that are registered in the registry. You can import modules from the registry by using the import statement.

*import my_module : my_function
my_function()

Here is an example of importing a module from the registry:

For how to add your module/package to the registry, please refer to Hedgehog Package Manager.

---

Import as @username/module

If you are a registerd user at Hedgehog Lab https://hlab.app, you can save your own modules by using the @username/module syntax, and everyone can import your modules by using the import statement.

*import @my_user_id/demo_module

Here is an example:

---

Import from the URL

The easiest way to import a module is to import it from the URL (like Github Gist). Hedgehog Lab will automatically download and install the module for you.

*import "https://pkg.com/your_module.hhs"

In this way, the source code of the module will be downloaded and cached by the Hedgehog runtime. The module will be available for the rest of the session.

---

Import from Github Repo

You can also import a module from a Github repo as *github username/repo/branch/path. Hedgehog Lab will automatically download and install the module for you.

For example, if the module is in the main branch of the hedgehog-lab repo, with path ./my_lib/demo_module.hhs, you can import it by using the following statement:

*github hedgehog-computing/hedgehog-lab/main/my_lib/demo_module.hhs

Here is an example: