1 files changed, 37 insertions, 0 deletions
diff --git a/third_party/rust/wasmparser/examples/simple.rs b/third_party/rust/wasmparser/examples/simple.rs
new file mode 100644
index 0000000000..2aca2f2b5e
--- /dev/null
+++ b/third_party/rust/wasmparser/examples/simple.rs
@@ -0,0 +1,37 @@
+use anyhow::Result;
+use std::env;
+use wasmparser::{Parser, Payload};
+
+fn main() -> Result<()> {
+    let args = env::args().collect::<Vec<_>>();
+    if args.len() != 2 {
+        println!("Usage: {} in.wasm", args[0]);
+        return Ok(());
+    }
+
+    let buf: Vec<u8> = std::fs::read(&args[1])?;
+    for payload in Parser::new(0).parse_all(&buf) {
+        match payload? {
+            Payload::Version { .. } => {
+                println!("====== Module");
+            }
+            Payload::ExportSection(s) => {
+                for export in s {
+                    let export = export?;
+                    println!("  Export {} {:?}", export.name, export.kind);
+                }
+            }
+            Payload::ImportSection(s) => {
+                for import in s {
+                    let import = import?;
+                    println!("  Import {}::{}", import.module, import.name);
+                }
+            }
+            _other => {
+                // println!("found payload {:?}", _other);
+            }
+        }
+    }
+
+    Ok(())
+}