Going Meta to Valhalla & Panama
summary
Meta approach extracts C headers into Jextract metadata jars (standardio class ≈22KB) and a runtime binder generates actual method bodies on load, avoiding handwritten JNI. Demo shows JShell binding to libc fopen, pointer arithmetic with a pointer with bounds checking, and embedding Python callbacks; it works end-to-end though startup, debugging and verification tradeoffs remain. Runtime binding lets the VM pick platform optimizations and lazily materialize only needed stubs.
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chapters (4)
- 0:00Start
- 22:08Wrapperless Native Programming
- 24:19The Binder Pattern
- 29:31Meta-programs manage meta-data about programs
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