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Porffor

Compiling JS ✨ Ahead-Of-Time ✨

Oliver Medhurst

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Oliver Medhurst @canadahonk

  • Creator of Porffor (stay tuned)
  • WinterCG co-chair (standardizing JS across runtimes)
  • TC39 invited expert (improving JS)

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Interpretation

JavaScript

source code

Executed

QuickJS

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Just-in-time Compilation

JavaScript

source code

Machine code

V8

Executed

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JIT Tradeoffs

  • Longer compile time = faster running time 🤠�Longer compile time = longer loading time 😔
  • Security can be 😬

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Ahead-of-time Compilation

C++

source code

Binary

(Native, Wasm, etc)

Clang

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Just-in-time Compilation

Unusable outside of the JS engine!

JavaScript

source code

Machine code

V8

Executed

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AOT Fixes JIT Tradeoffs

  • Longer compile time = faster running time 🤠�Longer compile time = longer loading time 😔
  • Security can be 😬

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Ahead-of-time Compilation

JavaScript source code

Binary

(Wasm, native, etc)

???

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Introducing Porffor

​

JavaScript source code

Binary

(Wasm, native, etc)

✨ Porffor ✨

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Test262: 47.68%

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Test262: 47.68%

FUNDING

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Performance

Natively compiled - BF Mandelbrot demo

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Tiny native compilation

Hello world

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Tiny native compilation

Hello world

15KB!

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Supports TypeScript input

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Written in JS + TS

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Thanks! Questions?

Please ask anything and say hi after!

Follow progress on 🐦 @canadahonk or 🌐 porffor.dev