Proxies are Awesome!

on YouTube ↗51m

" summary

Proxies bring a concrete meta‑programming API: implemented in Firefox 4 with handlers exposing about 13 handler traps so code can virtualize objects, intercept gets/sets, and build revocable membranes used for security wrappers; handlers are currently C++ but can be JavaScript, and a Zapod/Narcissus demo swaps SpiderMonkey with a proxy‑powered engine (it works but runs slowly); performance shows small overhead for forwarding proxies and the proposal already lands as a harmony proposal.

AI-written summary · about

" chapters (9)

1. 0:00Start
2. 5:33The Metaprogramming Api
3. 7:13Property Descriptor Map
4. 9:28Proxies
5. 15:57Correspondences between the Meta Layer and the Base Layer
6. 19:41Full Handler Api
7. 21:38Function Proxies
8. 27:17Example of a Forwarding Proxy
9. 44:33Micro Benchmark

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