You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
819 B
25 lines
819 B
//! Example of instantiating of the WebAssembly module and invoking its exported
|
|
//! function.
|
|
|
|
// You can execute this example with `cargo run --example gcd`
|
|
|
|
use anyhow::Result;
|
|
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 store = Store::default();
|
|
let module = Module::from_file(store.engine(), "examples/gcd.wat")?;
|
|
let instance = Instance::new(&store, &module, &[])?;
|
|
|
|
// Invoke `gcd` export
|
|
let gcd = instance
|
|
.get_func("gcd")
|
|
.ok_or(anyhow::format_err!("failed to find `gcd` function export"))?
|
|
.get2::<i32, i32, i32>()?;
|
|
|
|
println!("gcd(6, 27) = {}", gcd(6, 27)?);
|
|
Ok(())
|
|
}
|
|
|