json-pipeline

json-pipeline (v3.12.3) is a structure specification for designing flexible compilers with support for third-party optimization phases. It provides abstractions for sea-of-nodes (SoN), control flow graphs (CFG), static single assignment (SSA), dominator trees, and global code motion (GCM). The package is designed for Node.js and focuses on JSON-representable intermediate representations, making it suitable for compiler backends and JIT compilers. Release cadence is irregular; last major update was v3.0.0 with breaking changes in API. Key differentiators: modular architecture, JSON serialization, and emphasis on custom optimization phases.