fix Xdot check, get frontend to compile

juno_frontend/src/main.rs

@@ -14,7 +14,7 @@ mod types;
 
 use codegen::*;
 
-use std::path::PathBuf;
+use std::path::Path;
 
 extern crate hercules_ir;
 
@@ -62,7 +62,9 @@ fn main() {
                 pm.add_pass(hercules_opt::pass::Pass::Verify);
             }
             add_verified_pass!(pm, args, PhiElim);
-            pm.add_pass(hercules_opt::pass::Pass::Xdot(true));
+            if args.x_dot {
+                pm.add_pass(hercules_opt::pass::Pass::Xdot(true));
+            }
             add_pass!(pm, args, CCP);
             add_pass!(pm, args, DCE);
             add_pass!(pm, args, GVN);
@@ -77,17 +79,15 @@ fn main() {
             if args.x_dot {
                 pm.add_pass(hercules_opt::pass::Pass::Xdot(true));
             }
-            match args.output {
-                Some(file) => pm.add_pass(hercules_opt::pass::Pass::Codegen(file)),
-                None => {
-                    let mut path = PathBuf::from(src_file);
-                    path.set_extension("hbin");
-                    println!("{:?}", path);
-                    pm.add_pass(hercules_opt::pass::Pass::Codegen(
-                        path.to_str().unwrap().to_string(),
-                    ));
-                }
-            }
+            
+            let src_file_path = Path::new(&src_file);
+            let module_name = String::from(src_file_path.file_stem().unwrap().to_str().unwrap());
+            let output_folder = match args.output {
+                Some(output_folder) => output_folder,
+                None => String::from(src_file_path.parent().unwrap().to_str().unwrap())
+            };
+            pm.add_pass(hercules_opt::pass::Pass::Codegen(output_folder, module_name));
+            
             let _ = pm.run_passes();
         }
         Err(errs) => {