feat: add keyword argument name in error message

kclvm/cmd/src/test_data/failed/keyword_argument_error.k

@@ -0,0 +1 @@
+a = "{ID}".format(2) # keyword argument not found -> keyword argument 'ID' not found

kclvm/cmd/src/tests.rs

@@ -228,6 +228,9 @@ fn test_run_command() {
     test_conflict_mod_file();
     test_instances_with_yaml();
     test_plugin_not_found();
+    test_error_message_fuzz_matched();
+    test_error_message_fuzz_unmatched();
+    test_keyword_argument_error_message();
 }
 
 fn test_run_command_with_import() {
@@ -560,7 +563,6 @@ fn test_plugin_not_found() {
     }
 }
 
-#[test]
 fn test_error_message_fuzz_matched() {
     let test_case_path = PathBuf::from("./src/test_data/fuzz_match/main.k");
     let matches = app().arg_required_else_help(true).get_matches_from(&[
@@ -579,7 +581,6 @@ fn test_error_message_fuzz_matched() {
     }
 }
 
-#[test]
 fn test_error_message_fuzz_unmatched() {
     let test_case_path = PathBuf::from("./src/test_data/fuzz_match/main_unmatched.k");
     let matches = app().arg_required_else_help(true).get_matches_from(&[
@@ -596,3 +597,20 @@ fn test_error_message_fuzz_unmatched() {
         }
     }
 }
+
+fn test_keyword_argument_error_message() {
+    let test_case_path = PathBuf::from("./src/test_data/failed/keyword_argument_error.k");
+    let matches = app().arg_required_else_help(true).get_matches_from(&[
+        ROOT_CMD,
+        "run",
+        &test_case_path.canonicalize().unwrap().display().to_string(),
+    ]);
+    let settings = must_build_settings(matches.subcommand_matches("run").unwrap());
+    let sess = Arc::new(ParseSession::default());
+    match exec_program(sess.clone(), &settings.try_into().unwrap()) {
+        Ok(_) => panic!("unreachable code."),
+        Err(msg) => {
+            assert!(msg.contains("keyword argument 'ID' not found"));
+        }
+    }
+}

kclvm/runtime/src/value/val_fmt.rs

@@ -901,7 +901,7 @@ impl FormatString {
                         }
                         FieldType::Keyword(keyword) => kwargs
                             .dict_get_value(keyword.as_str())
-                            .expect("keyword argument not found")
+                            .expect(&format!("keyword argument '{}' not found", keyword))
                             .clone(),
                     };
                     for name_part in parts {