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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@allObjects
Speeding up variable lookup (and jump address lookup/'calculations') promise the most. Was there ever a thought to have something (changed) in the source that updates when the variable has been looked up? Of course that works only when the code is in RAM and a in/re-direction table that makes GC transparent? So it is not really a JIT compiler but more so an accelerator that does a lot of good especially in loops - similar to what pre-tokenzing does. An accelerator is not JIT compiler nor main stream, but Espruino isn't either. Such an accelerator would be unique and - after all - fit the uniqueness of Espruino (JS engine).