1 files changed, 25 insertions, 0 deletions
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..5ec8f34
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,25 @@
+use std::env;
+use std::fs::File;
+use std::io::Read;
+use std::process;
+
+fn main() {
+    let mut args = env::args();
+    let _ = args.next(); // executable name
+
+    let filename = match (args.next(), args.next()) {
+        (Some(filename), None) => filename,
+        _ => {
+            eprintln!("Usage: dump-syntax path/to/filename.rs");
+            process::exit(1);
+        }
+    };
+
+    let mut file = File::open(&filename).expect("Unable to open file");
+
+    let mut src = String::new();
+    file.read_to_string(&mut src).expect("Unable to read file");
+
+    let syntax = syn::parse_file(&src).expect("Unable to parse file");
+    println!("{:#?}", syntax);
+}