Project

ffi-clang

0.04
There's a lot of open issues
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ffi-clangsocketry/ffi-clangHomepageDocumentationSource CodeBug Tracker
Ruby FFI bindings for libclang C interface.
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 Popularity
Downloads
98,175
Stars
46
Forks
28
Watchers
7
 Releases
Current version
0.15.1
Total releases
19
First release
1980-01-02
Latest release
2025-02-16
 Issues
Open Issues
7
Closed Issues
15
Total Issues
22
Issue Closure Rate
68%
 Pull Requests
Open Pull Requests
0
Closed Pull Requests
9
Merged Pull Requests
108
Pull Request Acceptance Rate
92%
 Development
Primary Language
Ruby
Licenses
MIT
Average date of last 50 commits
2026-03-30
Reverse Dependencies
3

 Dependencies

Runtime

ffi
>= 0
 Project Readme

FFI::Clang

A light-weight wrapper for Ruby exposing libclang. This project is currently tested with Clang/libclang 18 and higher.

Development Status

Installation

Add this line to your application's Gemfile:

gem 'ffi-clang'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ffi-clang

Usage

Please see the project documentation for more details.

Configuration

The following environment variables can be used to configure how ffi-clang finds libclang and its resources:

Variable Description
LLVM_CONFIG Path to the llvm-config binary. Used to locate the libclang shared library and clang binary.
LLVM_VERSION Target LLVM version (e.g., 17). When set, disables auto-detection of llvm-config.
LIBCLANG Direct path to the libclang shared library (e.g., /usr/lib/libclang.so). Overrides llvm-config based library discovery.
LIBCLANG_RESOURCE_DIR Path to the clang resource directory containing compiler-intrinsic headers (stddef.h, stdarg.h, etc.). Use this if libclang cannot find its own headers.

For example, to use a specific LLVM installation:

LLVM_CONFIG=llvm-config-17 bundle exec bake test

Releases

Please see the project releases for all releases.

Contributing

We welcome contributions to this project.

  1. Fork it.
  2. Create your feature branch (git checkout -b my-new-feature).
  3. Commit your changes (git commit -am 'Add some feature').
  4. Push to the branch (git push origin my-new-feature).
  5. Create new Pull Request.

Running Tests

To run the test suite:

bundle exec sus

Making Releases

To make a new release:

bundle exec bake gem:release:patch # or minor or major

Developer Certificate of Origin

In order to protect users of this project, we require all contributors to comply with the Developer Certificate of Origin. This ensures that all contributions are properly licensed and attributed.

Community Guidelines

This project is best served by a collaborative and respectful environment. Treat each other professionally, respect differing viewpoints, and engage constructively. Harassment, discrimination, or harmful behavior is not tolerated. Communicate clearly, listen actively, and support one another. If any issues arise, please inform the project maintainers.