Add derive macro example

Author: szymon-zadworny

oneapi-rs/examples/kernel_launch_derive.rs

@@ -0,0 +1,63 @@
+//
+// Copyright (C) 2026 Intel Corporation
+//
+// Under the MIT License or the Apache License v2.0.
+// See LICENSE-MIT and LICENSE-APACHE for license information.
+// SPDX-License-Identifier: MIT OR Apache-2.0
+//
+
+use oneapi_rs::{
+    buffer::Buffer,
+    kernel::KernelArgument,
+    queue::Queue,
+    range::NdRange,
+    usm::{SharedAllocator, UsmAllocator},
+};
+use oneapi_rs_derive::KernelArgumentList;
+
+static IOTA_SRC: &str = r#"
+#include <sycl/sycl.hpp>
+namespace syclext = sycl::ext::oneapi;
+namespace syclexp = sycl::ext::oneapi::experimental;
+
+extern "C"
+SYCL_EXT_ONEAPI_FUNCTION_PROPERTY((syclexp::nd_range_kernel<1>))
+void iota(double start, double *ptr) {
+    size_t id = syclext::this_work_item::get_nd_item<1>().get_global_linear_id();
+    ptr[id] = start + static_cast<double>(id);
+}
+"#;
+
+#[derive(KernelArgumentList)]
+struct IotaArgs<'a> {
+    start: f64,
+    ptr: &'a mut Buffer<f64, UsmAllocator<SharedAllocator>>,
+}
+
+fn main() {
+    let mut queue = Queue::new();
+    let mut buffer = queue.alloc_shared::<f64>(1024).wait();
+
+    let kernel = queue
+        .get_context()
+        .create_kernel_bundle_from_source(IOTA_SRC)
+        .build()
+        .get_kernel("iota");
+
+    unsafe {
+        queue.launch(
+            NdRange::new([1024], [16]),
+            &kernel,
+            IotaArgs {
+                start: 3.14,
+                ptr: &mut buffer,
+            },
+        )
+    }
+    .wait();
+
+    for e in buffer.iter() {
+        print!("{e} ");
+    }
+    println!();
+}