Fix lookup symbol for enum members to search a correct code definition

Author: Chaosus

modules/gdscript/gdscript_analyzer.cpp

@@ -148,6 +148,15 @@ static GDScriptParser::DataType make_enum_type(const StringName &p_enum_name, co
 	return type;
 }
 
+static GDScriptParser::DataType make_class_enum_type(const StringName &p_enum_name, GDScriptParser::ClassNode *p_class, const String &p_script_path, bool p_meta = true) {
+	GDScriptParser::DataType type = make_enum_type(p_enum_name, p_class->fqcn, p_meta);
+
+	type.class_type = p_class;
+	type.script_path = p_script_path;
+
+	return type;
+}
+
 static GDScriptParser::DataType make_native_enum_type(const StringName &p_enum_name, const StringName &p_native_class, bool p_meta = true) {
 	// Find out which base class declared the enum, so the name is always the same even when coming from other contexts.
 	StringName native_base = p_native_class;
@@ -1101,7 +1110,7 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class,
 				check_class_member_name_conflict(p_class, member.m_enum->identifier->name, member.m_enum);
 
 				member.m_enum->set_datatype(resolving_datatype);
-				GDScriptParser::DataType enum_type = make_enum_type(member.m_enum->identifier->name, p_class->fqcn, true);
+				GDScriptParser::DataType enum_type = make_class_enum_type(member.m_enum->identifier->name, p_class, parser->script_path, true);
 
 				const GDScriptParser::EnumNode *prev_enum = current_enum;
 				current_enum = member.m_enum;
@@ -1194,7 +1203,7 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class,
 				// Also update the original references.
 				member.enum_value.parent_enum->values.set(member.enum_value.index, member.enum_value);
 
-				member.enum_value.identifier->set_datatype(make_enum_type(UNNAMED_ENUM, p_class->fqcn, false));
+				member.enum_value.identifier->set_datatype(make_class_enum_type(UNNAMED_ENUM, p_class, parser->script_path, false));
 			} break;
 			case GDScriptParser::ClassNode::Member::CLASS:
 				check_class_member_name_conflict(p_class, member.m_class->identifier->name, member.m_class);
@@ -4249,7 +4258,7 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident
 			const GDScriptParser::EnumNode::Value &element = current_enum->values[i];
 			if (element.identifier->name == p_identifier->name) {
 				StringName enum_name = current_enum->identifier ? current_enum->identifier->name : UNNAMED_ENUM;
-				GDScriptParser::DataType type = make_enum_type(enum_name, parser->current_class->fqcn, false);
+				GDScriptParser::DataType type = make_class_enum_type(enum_name, parser->current_class, parser->script_path, false);
 				if (element.parent_enum->identifier) {
 					type.enum_type = element.parent_enum->identifier->name;
 				}

modules/gdscript/gdscript_editor.cpp

@@ -3782,7 +3782,19 @@ static Error _lookup_symbol_from_base(const GDScriptParser::DataType &p_base, co
 				}
 			} break;
 			case GDScriptParser::DataType::ENUM: {
-				if (base_type.enum_values.has(p_symbol)) {
+				if (base_type.class_type && base_type.class_type->has_member(base_type.enum_type)) {
+					GDScriptParser::EnumNode *base_enum = base_type.class_type->get_member(base_type.enum_type).m_enum;
+					for (const GDScriptParser::EnumNode::Value &value : base_enum->values) {
+						if (value.identifier && value.identifier->name == p_symbol) {
+							r_result.type = ScriptLanguage::LOOKUP_RESULT_SCRIPT_LOCATION;
+							r_result.class_path = base_type.script_path;
+							r_result.location = value.line;
+							Error err = OK;
+							r_result.script = GDScriptCache::get_shallow_script(r_result.class_path, err);
+							return err;
+						}
+					}
+				} else if (base_type.enum_values.has(p_symbol)) {
 					r_result.type = ScriptLanguage::LOOKUP_RESULT_CLASS_CONSTANT;
 					r_result.class_name = String(base_type.native_type).get_slicec('.', 0);
 					r_result.class_member = p_symbol;