Assume unknown type for any unimplemented type

typechecker/src/build.rs

@@ -242,7 +242,13 @@ impl BuildManager {
             }
             if resolved.is_import_found {
                 for resolved_path in resolved.resolved_paths.iter() {
-                    let source = std::fs::read_to_string(resolved_path).unwrap();
+                    let source = match std::fs::read_to_string(resolved_path) {
+                        Ok(source) => source,
+                        Err(e) => {
+                            log::warn!("cannot read file: {}", e);
+                            continue;
+                        }
+                    };
                     let module = Self::get_module_name(resolved_path);
                     let build_source = BuildSource {
                         path: resolved_path.clone(),

typechecker/src/semantic_analyzer.rs

@@ -1,5 +1,6 @@
 use enderpy_python_parser::ast::Expression;
 use enderpy_python_parser as parser;
+use log::info;
 use parser::ast::Statement;
 
 use crate::{
@@ -86,7 +87,7 @@ impl SemanticAnalyzer {
             Expression::Attribute(_) => print!(
                 "Ignoring attribute assingment. See https://github.com/Glyphack/enderpy/issues/157"
             ),
-            _ => panic!("cannot assign to {:?} is not supported", target),
+            _ => info!("Ignoring assignment to {:?}", target)
         }
     }
 
@@ -431,7 +432,7 @@ impl TraversalVisitor for SemanticAnalyzer {
     }
 
     fn visit_async_function_def(&mut self, _f: &parser::ast::AsyncFunctionDef) {
-        todo!()
+
     }
 
     fn visit_class_def(&mut self, c: &parser::ast::ClassDef) {

typechecker/src/type_check/checker.rs

@@ -510,7 +510,7 @@ impl<'a> TraversalVisitor for TypeChecker<'a> {
                         }
                     }
                 }
-                _ => todo!(),
+                _ => {},
             }
         }
     }