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Improve inheritance system in gdnative pluginscript

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This commit is contained in:
Emmanuel Leblond 2018-01-15 23:20:02 +01:00
parent 05b1843818
commit 0de61998e4
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GPG key ID: C360860E645EFFC0
4 changed files with 29 additions and 28 deletions
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5
modules/gdnative/pluginscript/pluginscript_instance.cpp
View file

@ -84,8 +84,9 @@ Variant PluginScriptInstance::call(const StringName &p_method, const Variant **p
godot_variant ret = _desc->call_method(
_data, (godot_string_name *)&p_method, (const godot_variant **)p_args,
p_argcount, (godot_variant_call_error *)&r_error);
Variant *var_ret = (Variant *)&ret;
return *var_ret;
Variant var_ret = *(Variant *)&ret;
godot_variant_destroy(&ret);
return var_ret;
}
#if 0 // TODO: Don't rely on default implementations provided by ScriptInstance ?

1
modules/gdnative/pluginscript/pluginscript_language.cpp
View file

@ -103,6 +103,7 @@ Ref<Script> PluginScriptLanguage::get_template(const String &p_class_name, const
if (_desc.get_template_source_code) {
godot_string src = _desc.get_template_source_code(_data, (godot_string *)&p_class_name, (godot_string *)&p_base_class_name);
script->set_source_code(*(String *)&src);
godot_string_destroy(&src);
}
return script;
}

49
modules/gdnative/pluginscript/pluginscript_script.cpp
View file

@ -131,13 +131,10 @@ ScriptInstance *PluginScript::instance_create(Object *p_this) {
#endif
}
PluginScript *top = this;
// TODO: can be optimized by storing a PluginScript::_base_parent direct pointer
while (top->_ref_base_parent.is_valid())
top = top->_ref_base_parent.ptr();
if (top->_native_parent) {
if (!ClassDB::is_parent_class(p_this->get_class_name(), top->_native_parent)) {
String msg = "Script inherits from native type '" + String(top->_native_parent) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'";
StringName base_type = get_instance_base_type();
if (base_type) {
if (!ClassDB::is_parent_class(p_this->get_class_name(), base_type)) {
String msg = "Script inherits from native type '" + String(base_type) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'";
// TODO: implement PluginscriptLanguage::debug_break_parse
// if (ScriptDebugger::get_singleton()) {
// _language->debug_break_parse(get_path(), 0, msg);
@ -210,29 +207,31 @@ Error PluginScript::reload(bool p_keep_state) {
// TODO: GDscript uses `ScriptDebugger` here to jump into the parsing error
return err;
}
// Script's parent is passed as base_name which can make reference to a
// ClassDB name (i.e. `Node2D`) or a ressource path (i.e. `res://foo/bar.gd`)
StringName *base_name = (StringName *)&manifest.base;
if (*base_name) {
if (ClassDB::class_exists(*base_name)) {
_native_parent = *base_name;
} else {
Ref<Script> res = ResourceLoader::load(*base_name);
if (res.is_valid()) {
_ref_base_parent = res;
} else {
String name = *(StringName *)&manifest.name;
ERR_EXPLAIN(_path + ": Script '" + name + "' has an invalid parent '" + *base_name + "'.");
ERR_FAIL_V(ERR_PARSE_ERROR);
}
}
}
_valid = true;
// Use the manifest to configure this script object
_data = manifest.data;
_name = *(StringName *)&manifest.name;
_tool = manifest.is_tool;
// Base name is either another PluginScript or a regular class accessible
// through ClassDB
StringName *base_name = (StringName *)&manifest.base;
for (SelfList<PluginScript> *e = _language->_script_list.first(); e != NULL; e = e->next()) {
if (e->self()->_name == *base_name) {
// Found you, base is a PluginScript !
_ref_base_parent = Ref<PluginScript>(e->self());
break;
}
}
if (!_ref_base_parent.is_valid()) {
// Base is a native ClassDB
if (!ClassDB::class_exists(*base_name)) {
ERR_EXPLAIN("Unknown script '" + String(_name) + "' parent '" + String(*base_name) + "'.");
ERR_FAIL_V(ERR_PARSE_ERROR);
}
_native_parent = *base_name;
}
Dictionary *members = (Dictionary *)&manifest.member_lines;
for (const Variant *key = members->next(); key != NULL; key = members->next(key)) {

2
modules/gdnative/pluginscript/pluginscript_script.h
View file

@ -53,7 +53,7 @@ private:
bool _tool;
bool _valid;
Ref<PluginScript> _ref_base_parent;
Ref<Script> _ref_base_parent;
StringName _native_parent;
SelfList<PluginScript> _script_list;