Add to_string for enum types

Author: kraigher

vhdl_lang/src/analysis/declarative.rs

@@ -461,7 +461,16 @@ impl<'a> AnalyzeContext<'a> {
                     parent.add_named_entity(literal_ent, diagnostics);
                 }
 
-                parent.add_named_entity(enum_type.into(), diagnostics);
+                parent.add_named_entity(enum_type.clone().into(), diagnostics);
+
+                if !self.is_standard_package() {
+                    let standard = self.expect_standard_package_analysis().unwrap();
+                    let standard_region =
+                        StandardRegion::new(&self.root.symbols, &standard.result().region);
+
+                    parent
+                        .add_named_entity(standard_region.create_to_string(enum_type), diagnostics);
+                }
             }
             TypeDefinition::ProtectedBody(ref mut body) => {
                 body.type_reference.clear_reference();

vhdl_lang/src/analysis/tests/implicit.rs

@@ -72,6 +72,18 @@ end package;
     );
 }
 
+#[test]
+fn adds_to_string_for_enum_types() {
+    check_code_with_no_diagnostics(
+        "
+package pkg is
+  type enum_t is (alpha, beta);
+  alias my_to_string is to_string[enum_t return string];
+end package;  
+  ",
+    );
+}
+
 #[test]
 fn no_error_for_duplicate_alias_of_implicit() {
     check_code_with_no_diagnostics(

vhdl_ls/src/vhdl_server.rs

@@ -854,12 +854,18 @@ end package;
 
         let config_uri = write_config(
             &root_uri,
-            "
+            format!(
+                "
 [libraries]
+std.files = [
+'{}/../vhdl_libraries/std/*.vhd',
+]
 lib.files = [
   '*.vhd'
 ]
 ",
+                std::env::var("CARGO_MANIFEST_DIR").unwrap()
+            ),
         );
 
         expect_loaded_config_messages(&mock, &config_uri);