Method param

crates/wasmtime/src/runtime/types.rs:2553–2560

Get the `i`th parameter type. Returns `None` if `i` is out of bounds.

(&self, i: usize)

    ///
    /// Returns `None` if `i` is out of bounds.
    pub fn param(&self, i: usize) -> Option<ValType> {
        let engine = self.engine();
        self.registered_type
            .unwrap_func()
            .params()
            .get(i)
            .map(|ty| ValType::from_wasm_type(engine, ty))
    }

    /// Returns the list of parameter types for this function.
    #[inline]