Bridges Lean 4 and C code to enable seamless integration with native libraries and system APIs.
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.
Key Features
01Template build configurations for Lake and Clang integration
02Type-safe opaque handle definitions for native pointers
03Comprehensive data marshalling for Lean primitives and complex types
040 GitHub stars
05Automated garbage collection integration using external class registration
06Standardized IO result and error handling patterns in C
Use Cases
01Accessing low-level system calls and OS-specific APIs for terminal or hardware control
02Integrating high-performance graphics APIs like Metal or Vulkan into Lean projects
03Creating Lean wrappers for existing C libraries such as SQLite, gRPC, or OpenSSL
