Compiling Zod: Eliminating the Performance Tax of Tree-Walking Interpreters

Zod's validation throughput suffers from a fundamental architectural limitation: its tree-walking interpreter re-discovers the schema shape on every parse call, allocating fresh contexts and dynamically dispatching to child validators despite the schema being static. Shifting from runtime interpretation to ahead-of-time compilation removes this redundancy, enabling 100-600x performance gains while maintaining the declarative developer experience that makes Zod popular in TypeScript ecosystems.