What is the primary use of the Lean 4 FFI bindings skill?

The skill is used to create a bridge between the Lean 4 functional programming language and C, allowing developers to call native functions and use system libraries within Lean.

Is this skill suitable for graphics or database development?

Absolutely. It is specifically designed for high-performance use cases like Metal GPU rendering, SQLite bindings, and network protocol implementations.

Can I pass complex data types like arrays and tuples through the FFI?

Yes, the skill includes specific code patterns for boxing and unboxing Lean arrays, tuples, and floats into their corresponding C representations.

How does this skill handle memory management between Lean and C?

It provides implementation patterns for registering external classes and finalizers, ensuring that native C objects are correctly deallocated when Lean's garbage collector reclaims the associated object.

Does this skill help with the build process?

Yes, it includes a build.sh template for configuring the Lean compiler (LEAN_CC) and linking external frameworks using Lake and Clang.

Lean 4 FFI Bindings

Name: Lean 4 FFI Bindings
Author: nathanial

bynathanial

Herramientas para Desarrolladores

Bridges Lean 4 and C code to enable seamless integration with native libraries and system APIs.

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This skill provides standardized implementation patterns for creating Foreign Function Interface (FFI) bindings between Lean 4 and C. It guides developers through the complexities of defining opaque types, managing native memory, and registering external classes for Lean's garbage collector. By offering pre-built patterns for data conversion—including tuples, arrays, and floating-point values—it simplifies the process of building high-performance applications that require low-level system access, such as GPU rendering, database drivers, or network protocols.

Características Principales

Template build configurations for Lake and Clang integration
Type-safe opaque handle definitions for native pointers
Comprehensive data marshalling for Lean primitives and complex types
0 GitHub stars
Automated garbage collection integration using external class registration
Standardized IO result and error handling patterns in C

Casos de Uso

Accessing low-level system calls and OS-specific APIs for terminal or hardware control
Integrating high-performance graphics APIs like Metal or Vulkan into Lean projects
Creating Lean wrappers for existing C libraries such as SQLite, gRPC, or OpenSSL

Acerca de

Características Principales

Template build configurations for Lake and Clang integration
Type-safe opaque handle definitions for native pointers
Comprehensive data marshalling for Lean primitives and complex types
0 GitHub stars
Automated garbage collection integration using external class registration
Standardized IO result and error handling patterns in C

Casos de Uso

Accessing low-level system calls and OS-specific APIs for terminal or hardware control
Integrating high-performance graphics APIs like Metal or Vulkan into Lean projects
Creating Lean wrappers for existing C libraries such as SQLite, gRPC, or OpenSSL