wasm-utils/ext/src/main.rs

extern crate parity_wasm;
extern crate wasm_utils;

use std::env;

fn main() {

	wasm_utils::init_log();

	let args = env::args().collect::<Vec<_>>();
	if args.len() != 3 {
		println!("Usage: {} input_file.wasm output_file.wasm", args[0]);
		return;
	}

	let module = wasm_utils::externalize(
		parity_wasm::deserialize_file(&args[1]).expect("Module to deserialize ok"), 
		vec!["_free", "_malloc"],
	);

	parity_wasm::serialize_to_file(&args[2], module).expect("Module to serialize ok");
}