parse header

test_data/.gitignore

@@ -0,0 +1 @@
+/out

test_data/create_test_data.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+for rust_file in $SCRIPT_DIR/*.rs; do
+    # Use -Cprefer-dynamic to keep the binary small
+    rustc --edition 2021 "$rust_file" -Cprefer-dynamic -Copt-level=3 --out-dir="$SCRIPT_DIR/out"
+done

test_data/hello_world.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, World!");
+}