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sigilium

v1.1.0

Published

Sigilium is a library for defining complex dependency hierarchies through smart identifiers. It provides factory functions for creating extension points with different composition patterns.

Downloads

247

Readme

Sigilium 🔮

Sigilium is a library for defining complex dependency hierarchies through smart identifiers. It provides factory functions for creating extension points with different composition patterns.

Purpose 🧠

When building modular systems, we often need ways to:

  • Define clear extension points for functionality
  • Support multiple implementations of the same interface
  • Compose implementations through decoration and aggregation
  • Maintain clean separation between components

Sigilium helps solve these problems by providing smart identifiers that know how to compose their implementations.

Usage 🪄

First, import the sigilium factory functions:

import sigilium from 'sigilium';

Basic Extension Points 📍

Create a basic extension point when you need a simple implementation:

const log = sigilium.sigil('log');

// Register an implementation
container.install(log.provider([], () => console.log));

Optional Extension Points 🔌

Create an optional extension point when you want at-most-one implementation:

const logger = sigilium.optional('logger');

// Will throw if multiple implementations try to register
container.install(logger.provider([], () => new StdoutLogger()));

Singleton Extension Points ☝️

Create a singleton extension point when you need exactly one implementation:

const database = sigilium.singleton('database');

// Will throw if multiple implementations try to register
container.install(database.provider([], () => new SQLDatabase()));

Composite Extension Points 🎭

Create a composite extension point when you need decoration or aggregation:

const search = sigilium.composite('search');

// Register multiple implementations
container.install(search.provider([], () => 
  query => ['result1', 'result2']
));

// Decorate with logging
container.install(search.decorator([log.resolve], ([logger]) => (fn) => 
  query => {
    logger(`Searching for: ${query}`);
    return fn(query);
  }
));

// Aggregate results
container.install(search.aggregator([], () => (providers) =>
  query => providers.flatMap(p => p()(query))
));

Contributing 🦄

We welcome contributions to the Sigilium project! If you have any ideas, bug reports, or pull requests, please feel free to submit them on the Sigilium GitHub repository.

License 🔒

Sigilium is licensed under the MIT License.