Unshackling JavaScript with Macros

on YouTube ↗33m

" summary

A working macro system called sweet.js implements hygienic macros that add an expansion phase before parsing and compiles invalid JavaScript into valid code, enabling ES6 destructuring, classes and fat‑arrow syntax plus function tracing and pattern matching. It preserves scopes to avoid name collisions, generates source maps (sjs -c), ships via npm, and is already used to prototype language features instead of waiting years for ECMA standardization; a related blog post reached about 50,000 views.

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" chapters (9)

1. 0:00Start
2. 12:26pattern classes
3. 14:57'let' macros
4. 15:55repeating patterns
5. 17:55hygiene
6. 20:25infix macros
7. 22:47case macros
8. 31:50want static allocation?
9. 32:05want pattern matching?

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