cl-gobject-introspection

cl-gobject-introspection provides Common Lisp bindings to the GObject Introspection library, allowing Lisp programs to automatically generate interfaces for calling into C libraries that use the GObject system. This enables seamless integration with GNOME ecosystem libraries such as GTK, GLib, and Gio without manual FFI coding.

Key Features

• Automatic Bindings — Generates Lisp interfaces from GObject Introspection metadata, eliminating the need for manual FFI definitions.
• Namespace Access — Uses nget and invoke macros for concise access to functions, constants, enums, classes, and methods.
• Object Interaction — Supports method invocation, property access, signal connection, and field manipulation on GObject instances.
• Foreign Object Handling — Provides utilities to convert between Lisp objects and C pointers for low-level interoperability.
• Multi-Version Support — Works with different library versions (e.g., GTK 3 and GTK 4) via namespace specification.

Philosophy

The project emphasizes a unified namespace model where repositories, classes, and enumerations are treated as namespaces, simplifying the interface to GObject-based C libraries through consistent macros and functions.