1 files changed, 27 insertions, 0 deletions
diff --git a/third_party/rust/parity-wasm/examples/roundtrip.rs b/third_party/rust/parity-wasm/examples/roundtrip.rs
new file mode 100644
index 0000000000..b3b951912a
--- /dev/null
+++ b/third_party/rust/parity-wasm/examples/roundtrip.rs
@@ -0,0 +1,27 @@
+extern crate parity_wasm;
+
+use std::env;
+
+fn main() {
+	let args = env::args().collect::<Vec<_>>();
+	if args.len() != 3 {
+		println!("Usage: {} in.wasm out.wasm", args[0]);
+		return;
+	}
+
+	let module = match parity_wasm::deserialize_file(&args[1])
+		.expect("Failed to load module")
+		.parse_names()
+		.and_then(|module| module.parse_reloc())
+	{
+		Ok(m) => m,
+		Err((errors, m)) => {
+			for (index, error) in errors.into_iter() {
+				println!("Custom section #{} parse error: {:?}", index, error);
+			}
+			m
+		}
+	};
+
+	parity_wasm::serialize_to_file(&args[2], module).expect("Failed to write module");
+}