WASM: Runtime Library Experiment

[ubaidsk]

Earlier this week (before meet with Dr. Ondrej), I experimented/played with possibility of supporting runtime library by bridging via javascript.

Example:

(lp) lpython$ cat examples/expr2.py from ltypes import f64 from numpy import cos, sin @ccall def _lfortran_dsin(x: f64) -> f64: pass def main0(): theta: f64 = 2.0 print(sin(theta)**2.0 + cos(theta)**2.0) pi: f64 = 3.141592653589793238462643383279502884197 print(_lfortran_dsin(pi/2)) main0() (lp) lpython$ lpython examples/expr2.py --backend wasm -o tmp (lp) lpython$ node --experimental-wasi-unstable-preview1 tmp.js (node:32581) ExperimentalWarning: WASI is an experimental feature. This feature could change at any time (Use `node --trace-warnings ...` to show where the warning was created) 1 1 (lp) lpython$