[fine] Rebuild main, it's probably broken

fine/src/main.rs

@@ -1,9 +1,9 @@
-use fine::parser::old::Parser;
+use fine::parser::parse;
+use fine::semantics::Semantics;
 use std::env;
 use std::fs;
 
 pub fn process_file(file: &str) {
-    println!("{file}");
     let source = match fs::read_to_string(file) {
         Ok(c) => c,
         Err(e) => {
@@ -12,20 +12,20 @@ pub fn process_file(file: &str) {
         }
     };
 
-    let (mut tree, expr, lines) = Parser::new(&source).parse();
-    if tree.errors.len() > 0 {
-        for error in tree.errors {
-            eprintln!("{error}");
-        }
-        return;
+    // What am I doing here?
+    let (tree, lines) = parse(&source);
+    let semantics = Semantics::new(&tree, &lines);
+
+    // This is... probably wrong, I don't know, what am I doing?
+    for t in tree.trees() {
+        let _ = semantics.type_of(t, false);
     }
 
-    let _expr_type = tree.expr_type(&expr, &lines, true);
-    if tree.errors.len() > 0 {
-        for error in tree.errors {
-            eprintln!("{error}");
-        }
-        return;
+    // OK now there might be errors.
+    let mut errors = semantics.snapshot_errors();
+    errors.reverse();
+    for e in errors {
+        eprintln!("{file}: {}:{}: {}", e.start.0, e.start.1, e.message);
     }
 }