fix: fix some missing diagnostics in parser.

kclvm/cmd/src/test_data/plugin/plugin_not_found/kcl.mod

@@ -0,0 +1,5 @@
+[package]
+name = "plugin_not_found"
+edition = "0.0.1"
+version = "0.0.1"
+

kclvm/cmd/src/test_data/plugin/plugin_not_found/main.k

@@ -0,0 +1,3 @@
+import kcl_plugin.not_exist
+
+The_first_kcl_program = 'Hello World!'

kclvm/cmd/src/tests.rs

@@ -227,6 +227,7 @@ fn test_run_command() {
     test_main_pkg_not_found();
     test_conflict_mod_file();
     test_instances_with_yaml();
+    test_plugin_not_found();
 }
 
 fn test_run_command_with_import() {
@@ -542,3 +543,18 @@ fn test_conflict_mod_file() {
         Err(msg) => assert!(msg.contains("conflict kcl.mod file paths")),
     }
 }
+
+fn test_plugin_not_found() {
+    let test_case_path = PathBuf::from("./src/test_data/plugin/plugin_not_found");
+    let matches = app().arg_required_else_help(true).get_matches_from(&[
+        ROOT_CMD,
+        "run",
+        test_case_path.as_path().display().to_string().as_str(),
+    ]);
+    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("the plugin package `kcl_plugin.not_exist` is not found, please confirm if plugin mode is enabled")),
+    }
+}

kclvm/runner/src/lib.rs

@@ -11,7 +11,7 @@ use kclvm_error::{Diagnostic, Handler};
 use kclvm_parser::{load_program, ParseSession};
 use kclvm_query::apply_overrides;
 use kclvm_runtime::{PanicInfo, PlanOptions, ValueRef};
-use kclvm_sema::resolver::resolve_program;
+use kclvm_sema::resolver::{resolve_program, scope::ProgramScope};
 use linker::Command;
 pub use runner::ExecProgramArgs;
 use runner::{ExecProgramResult, KclvmRunner, KclvmRunnerOptions};
@@ -194,7 +194,7 @@ pub fn execute(
 ) -> Result<String, String> {
     // Resolve ast
     let scope = resolve_program(&mut program);
-    scope.emit_diagnostics_to_string(sess.0.clone())?;
+    emit_compile_diag_to_string(sess, &scope)?;
 
     // Create a temp entry file and the temp dir will be delete automatically
     let temp_dir = tempdir().map_err(|e| e.to_string())?;
@@ -298,3 +298,28 @@ fn temp_file(dir: &str) -> Result<String> {
         .ok_or(anyhow::anyhow!("{dir} not found"))?
         .to_string())
 }
+
+// [`emit_compile_diag_to_string`] will emit compile diagnostics to string, including parsing and resolving diagnostics.
+fn emit_compile_diag_to_string(
+    sess: Arc<ParseSession>,
+    scope: &ProgramScope,
+) -> Result<(), String> {
+    let mut res_str = sess
+        .1
+        .borrow_mut()
+        .emit_to_string()
+        .map_err(|err| err.to_string())?;
+    let sema_err = scope.emit_diagnostics_to_string(sess.0.clone());
+    if sema_err.is_err() {
+        #[cfg(not(target_os = "windows"))]
+        res_str.push_str("\n");
+        #[cfg(target_os = "windows")]
+        res_str.push_str("\r\n");
+        res_str.push_str(&sema_err.unwrap_err());
+    }
+
+    res_str
+        .is_empty()
+        .then(|| Ok(()))
+        .unwrap_or_else(|| Err(res_str))
+}