This example demonstrates running WebAssembly code from Python using PythonMonkey.

There are two files used in this example: factorial.wasm and main.py.

factorial.wasm is a WebAssembly binary program for calculating the nth factorial. It exposes a function fac(n).

main.py is the entry point of this example. This program reads factorial.wasm and uses JavaScript to compile and instantiate it. Then it calls the fac(n) function directly from Python.

For more information on Factorials, refer to https://en.wikipedia.org/wiki/Factorial

Here is the source code for factorial.wasm written in WebAssembly Text.

(module
  (func $fac (export "fac") (param f64) (result f64)
    local.get 0
    f64.const 1
    f64.lt
    if (result f64)
      f64.const 1
    else
      local.get 0
      local.get 0
      f64.const 1
      f64.sub
      call $fac
      f64.mul
    end))