Add enums in GDNative API generator

modules/nativescript/api_generator.cpp

@@ -33,6 +33,7 @@
 
 #include "class_db.h"
 #include "core/global_constants.h"
+#include "core/pair.h"
 #include "core/project_settings.h"
 #include "os/file_access.h"
 
@@ -93,6 +94,11 @@ struct SignalAPI {
 	Map<int, Variant> default_arguments;
 };
 
+struct EnumAPI {
+	String name;
+	List<Pair<int, String> > values;
+};
+
 struct ClassAPI {
 	String class_name;
 	String super_class_name;
@@ -109,6 +115,7 @@ struct ClassAPI {
 	List<PropertyAPI> properties;
 	List<ConstantAPI> constants;
 	List<SignalAPI> signals_;
+	List<EnumAPI> enums;
 };
 
 /*
@@ -321,6 +328,25 @@ List<ClassAPI> generate_c_api_classes() {
 			}
 		}
 
+		// enums
+		{
+			List<EnumAPI> enums;
+			List<StringName> enum_names;
+			ClassDB::get_enum_list(class_name, &enum_names, true);
+			for (List<StringName>::Element *E = enum_names.front(); E; E = E->next()) {
+				List<StringName> value_names;
+				EnumAPI enum_api;
+				enum_api.name = E->get();
+				ClassDB::get_enum_constants(class_name, E->get(), &value_names, true);
+				for (List<StringName>::Element *val_e = value_names.front(); val_e; val_e = val_e->next()) {
+					int int_val = ClassDB::get_integer_constant(class_name, val_e->get(), NULL);
+					enum_api.values.push_back(Pair<int, String>(int_val, val_e->get()));
+				}
+				enum_api.values.sort_custom<PairSort<int, String> >();
+				class_api.enums.push_back(enum_api);
+			}
+		}
+
 		api.push_back(class_api);
 	}
 
@@ -410,11 +436,24 @@ static List<String> generate_c_api_json(const List<ClassAPI> &p_api) {
 			source.push_back("\t\t\t\t]\n");
 			source.push_back(String("\t\t\t}") + (e->next() ? "," : "") + "\n");
 		}
+		source.push_back("\t\t],\n");
+
+		source.push_back("\t\t\"enums\": [\n");
+		for (List<EnumAPI>::Element *e = api.enums.front(); e; e = e->next()) {
+			source.push_back("\t\t\t{\n");
+			source.push_back("\t\t\t\t\"name\": \"" + e->get().name + "\",\n");
+			source.push_back("\t\t\t\t\"values\": {\n");
+			for (List<Pair<int, String> >::Element *val_e = e->get().values.front(); val_e; val_e = val_e->next()) {
+				source.push_back("\t\t\t\t\t\"" + val_e->get().second + "\": " + itos(val_e->get().first));
+				source.push_back(String((val_e->next() ? "," : "")) + "\n");
+			}
+			source.push_back("\t\t\t\t}\n");
+			source.push_back(String("\t\t\t}") + (e->next() ? "," : "") + "\n");
+		}
 		source.push_back("\t\t]\n");
 
 		source.push_back(String("\t}") + (c->next() ? "," : "") + "\n");
 	}
-
 	source.push_back("]");
 
 	return source;