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//! Example of instantiating of the WebAssembly module and invoking its exported
//! function.
// You can execute this example with `cargo run --example gcd`
use wasmtime::*;
fn main() -> Result<()> {
// Load our WebAssembly (parsed WAT in our case), and then load it into a
// `Module` which is attached to a `Store` cache. After we've got that we
// can instantiate it.
let mut store = Store::<()>::default();
let module = Module::from_file(store.engine(), "examples/gcd.wat")?;
let instance = Instance::new(&mut store, &module, &[])?;
// Invoke `gcd` export
let gcd = instance.get_typed_func::<(i32, i32), i32>(&mut store, "gcd")?;
println!("gcd(6, 27) = {}", gcd.call(&mut store, (6, 27))?);
Ok(())
}
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