a7f49ac9a1
Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
511 lines
15 KiB
C++
511 lines
15 KiB
C++
/*************************************************************************/
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/* pluginscript_script.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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// Godot imports
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#include "core/os/file_access.h"
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// PluginScript imports
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#include "pluginscript_instance.h"
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#include "pluginscript_script.h"
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#ifdef DEBUG_ENABLED
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#define __ASSERT_SCRIPT_REASON "Cannot retrieve PluginScript class for this script, is your code correct?"
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#define ASSERT_SCRIPT_VALID() \
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{ \
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ERR_FAIL_COND_MSG(!can_instance(), __ASSERT_SCRIPT_REASON); \
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}
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#define ASSERT_SCRIPT_VALID_V(ret) \
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{ \
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ERR_FAIL_COND_V_MSG(!can_instance(), ret, __ASSERT_SCRIPT_REASON); \
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}
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#else
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#define ASSERT_SCRIPT_VALID()
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#define ASSERT_SCRIPT_VALID_V(ret)
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#endif
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void PluginScript::_bind_methods() {
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ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "new", &PluginScript::_new, MethodInfo("new"));
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}
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PluginScriptInstance *PluginScript::_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, Variant::CallError &r_error) {
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r_error.error = Variant::CallError::CALL_OK;
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// Create instance
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PluginScriptInstance *instance = memnew(PluginScriptInstance());
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if (instance->init(this, p_owner)) {
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_language->lock();
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_instances.insert(instance->get_owner());
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_language->unlock();
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} else {
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r_error.error = Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL;
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memdelete(instance);
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ERR_FAIL_V(NULL);
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}
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// Construct
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// TODO: Support arguments in the constructor?
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// There is currently no way to get the constructor function name of the script.
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// instance->call("__init__", p_args, p_argcount, r_error);
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if (p_argcount > 0) {
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WARN_PRINT("PluginScript doesn't support arguments in the constructor");
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}
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return instance;
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}
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Variant PluginScript::_new(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
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r_error.error = Variant::CallError::CALL_OK;
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if (!_valid) {
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r_error.error = Variant::CallError::CALL_ERROR_INVALID_METHOD;
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return Variant();
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}
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REF ref;
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Object *owner = NULL;
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if (get_instance_base_type() == "") {
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owner = memnew(Reference);
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} else {
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owner = ClassDB::instance(get_instance_base_type());
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}
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if (!owner) {
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r_error.error = Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL;
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return Variant();
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}
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Reference *r = Object::cast_to<Reference>(owner);
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if (r) {
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ref = REF(r);
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}
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PluginScriptInstance *instance = _create_instance(p_args, p_argcount, owner, r_error);
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if (!instance) {
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if (ref.is_null()) {
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memdelete(owner); //no owner, sorry
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}
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return Variant();
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}
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if (ref.is_valid()) {
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return ref;
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} else {
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return owner;
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}
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}
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#ifdef TOOLS_ENABLED
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void PluginScript::_placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {
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placeholders.erase(p_placeholder);
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}
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#endif
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bool PluginScript::can_instance() const {
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bool can = _valid || (!_tool && !ScriptServer::is_scripting_enabled());
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return can;
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}
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Ref<Script> PluginScript::get_base_script() const {
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if (_ref_base_parent.is_valid()) {
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return Ref<PluginScript>(_ref_base_parent);
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} else {
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return Ref<Script>();
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}
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}
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StringName PluginScript::get_instance_base_type() const {
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if (_native_parent)
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return _native_parent;
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if (_ref_base_parent.is_valid())
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return _ref_base_parent->get_instance_base_type();
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return StringName();
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}
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void PluginScript::update_exports() {
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#ifdef TOOLS_ENABLED
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ASSERT_SCRIPT_VALID();
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if (placeholders.size()) {
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//update placeholders if any
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Map<StringName, Variant> propdefvalues;
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List<PropertyInfo> propinfos;
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get_script_property_list(&propinfos);
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for (Set<PlaceHolderScriptInstance *>::Element *E = placeholders.front(); E; E = E->next()) {
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E->get()->update(propinfos, _properties_default_values);
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}
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}
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#endif
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}
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// TODO: rename p_this "p_owner" ?
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ScriptInstance *PluginScript::instance_create(Object *p_this) {
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ASSERT_SCRIPT_VALID_V(NULL);
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// TODO check script validity ?
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if (!_tool && !ScriptServer::is_scripting_enabled()) {
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#ifdef TOOLS_ENABLED
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// Instance a fake script for editing the values
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PlaceHolderScriptInstance *si = memnew(PlaceHolderScriptInstance(get_language(), Ref<Script>(this), p_this));
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placeholders.insert(si);
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update_exports();
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return si;
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#else
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return NULL;
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#endif
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}
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StringName base_type = get_instance_base_type();
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if (base_type) {
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if (!ClassDB::is_parent_class(p_this->get_class_name(), base_type)) {
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String msg = "Script inherits from native type '" + String(base_type) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'";
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// TODO: implement PluginscriptLanguage::debug_break_parse
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// if (ScriptDebugger::get_singleton()) {
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// _language->debug_break_parse(get_path(), 0, msg);
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// }
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ERR_FAIL_V_MSG(NULL, msg);
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}
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}
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Variant::CallError unchecked_error;
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return _create_instance(NULL, 0, p_this, unchecked_error);
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}
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bool PluginScript::instance_has(const Object *p_this) const {
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_language->lock();
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bool hasit = _instances.has((Object *)p_this);
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_language->unlock();
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return hasit;
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}
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bool PluginScript::has_source_code() const {
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bool has = _source != "";
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return has;
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}
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String PluginScript::get_source_code() const {
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return _source;
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}
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void PluginScript::set_source_code(const String &p_code) {
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if (_source == p_code)
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return;
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_source = p_code;
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}
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Error PluginScript::reload(bool p_keep_state) {
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ERR_FAIL_COND_V(!_language, ERR_UNCONFIGURED);
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_language->lock();
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ERR_FAIL_COND_V(!p_keep_state && _instances.size(), ERR_ALREADY_IN_USE);
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_language->unlock();
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_valid = false;
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String basedir = _path;
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if (basedir == "")
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basedir = get_path();
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if (basedir != "")
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basedir = basedir.get_base_dir();
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if (_data) {
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_desc->finish(_data);
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}
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Error err;
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godot_pluginscript_script_manifest manifest = _desc->init(
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_language->_data,
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(godot_string *)&_path,
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(godot_string *)&_source,
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(godot_error *)&err);
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// Manifest's attributes must be explicitly freed
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#define FREE_SCRIPT_MANIFEST(manifest) \
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{ \
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godot_string_name_destroy(&manifest.name); \
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godot_string_name_destroy(&manifest.base); \
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godot_dictionary_destroy(&manifest.member_lines); \
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godot_array_destroy(&manifest.methods); \
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godot_array_destroy(&manifest.signals); \
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godot_array_destroy(&manifest.properties); \
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}
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if (err) {
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FREE_SCRIPT_MANIFEST(manifest);
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// TODO: GDscript uses `ScriptDebugger` here to jump into the parsing error
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return err;
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}
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// Script's parent is passed as base_name which can make reference to a
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// ClassDB name (i.e. `Node2D`) or a resource path (i.e. `res://foo/bar.gd`)
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StringName *base_name = (StringName *)&manifest.base;
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if (*base_name) {
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if (ClassDB::class_exists(*base_name)) {
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_native_parent = *base_name;
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} else {
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Ref<Script> res = ResourceLoader::load(*base_name);
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if (res.is_valid()) {
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_ref_base_parent = res;
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} else {
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String name = *(StringName *)&manifest.name;
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FREE_SCRIPT_MANIFEST(manifest);
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ERR_FAIL_V_MSG(ERR_PARSE_ERROR, _path + ": Script '" + name + "' has an invalid parent '" + *base_name + "'.");
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}
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}
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}
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_valid = true;
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// Use the manifest to configure this script object
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_data = manifest.data;
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_name = *(StringName *)&manifest.name;
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_tool = manifest.is_tool;
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Dictionary *members = (Dictionary *)&manifest.member_lines;
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for (const Variant *key = members->next(); key != NULL; key = members->next(key)) {
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_member_lines[*key] = (*members)[*key];
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}
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Array *methods = (Array *)&manifest.methods;
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for (int i = 0; i < methods->size(); ++i) {
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Dictionary v = (*methods)[i];
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MethodInfo mi = MethodInfo::from_dict(v);
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_methods_info[mi.name] = mi;
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// rpc_mode is passed as an optional field and is not part of MethodInfo
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Variant var = v["rpc_mode"];
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if (var == Variant()) {
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_methods_rpc_mode[mi.name] = MultiplayerAPI::RPC_MODE_DISABLED;
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} else {
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_methods_rpc_mode[mi.name] = MultiplayerAPI::RPCMode(int(var));
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}
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}
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Array *signals = (Array *)&manifest.signals;
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for (int i = 0; i < signals->size(); ++i) {
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Variant v = (*signals)[i];
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MethodInfo mi = MethodInfo::from_dict(v);
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_signals_info[mi.name] = mi;
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}
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Array *properties = (Array *)&manifest.properties;
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for (int i = 0; i < properties->size(); ++i) {
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Dictionary v = (*properties)[i];
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PropertyInfo pi = PropertyInfo::from_dict(v);
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_properties_info[pi.name] = pi;
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_properties_default_values[pi.name] = v["default_value"];
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// rset_mode is passed as an optional field and is not part of PropertyInfo
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Variant var = v["rset_mode"];
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if (var == Variant()) {
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_methods_rpc_mode[pi.name] = MultiplayerAPI::RPC_MODE_DISABLED;
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} else {
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_methods_rpc_mode[pi.name] = MultiplayerAPI::RPCMode(int(var));
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}
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}
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#ifdef TOOLS_ENABLED
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/*for (Set<PlaceHolderScriptInstance*>::Element *E=placeholders.front();E;E=E->next()) {
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_update_placeholder(E->get());
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}*/
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#endif
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FREE_SCRIPT_MANIFEST(manifest);
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return OK;
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#undef FREE_SCRIPT_MANIFEST
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}
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void PluginScript::get_script_method_list(List<MethodInfo> *r_methods) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, MethodInfo>::Element *e = _methods_info.front(); e != NULL; e = e->next()) {
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r_methods->push_back(e->get());
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}
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}
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void PluginScript::get_script_property_list(List<PropertyInfo> *r_properties) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, PropertyInfo>::Element *e = _properties_info.front(); e != NULL; e = e->next()) {
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r_properties->push_back(e->get());
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}
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}
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bool PluginScript::has_method(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _methods_info.has(p_method);
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}
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MethodInfo PluginScript::get_method_info(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(MethodInfo());
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const Map<StringName, MethodInfo>::Element *e = _methods_info.find(p_method);
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if (e != NULL) {
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return e->get();
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} else {
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return MethodInfo();
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}
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}
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bool PluginScript::has_property(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _properties_info.has(p_method);
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}
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PropertyInfo PluginScript::get_property_info(const StringName &p_property) const {
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ASSERT_SCRIPT_VALID_V(PropertyInfo());
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const Map<StringName, PropertyInfo>::Element *e = _properties_info.find(p_property);
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if (e != NULL) {
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return e->get();
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} else {
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return PropertyInfo();
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}
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}
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bool PluginScript::get_property_default_value(const StringName &p_property, Variant &r_value) const {
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ASSERT_SCRIPT_VALID_V(false);
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#ifdef TOOLS_ENABLED
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const Map<StringName, Variant>::Element *e = _properties_default_values.find(p_property);
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if (e != NULL) {
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r_value = e->get();
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return true;
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} else {
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return false;
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}
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#endif
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return false;
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}
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ScriptLanguage *PluginScript::get_language() const {
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return _language;
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}
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Error PluginScript::load_source_code(const String &p_path) {
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PoolVector<uint8_t> sourcef;
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Error err;
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FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
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ERR_FAIL_COND_V_MSG(err, err, "Cannot open file '" + p_path + "'.");
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int len = f->get_len();
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sourcef.resize(len + 1);
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PoolVector<uint8_t>::Write w = sourcef.write();
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int r = f->get_buffer(w.ptr(), len);
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f->close();
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memdelete(f);
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ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
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w[len] = 0;
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String s;
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if (s.parse_utf8((const char *)w.ptr())) {
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ERR_FAIL_V_MSG(ERR_INVALID_DATA, "Script '" + p_path + "' contains invalid unicode (UTF-8), so it was not loaded. Please ensure that scripts are saved in valid UTF-8 unicode.");
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}
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_source = s;
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#ifdef TOOLS_ENABLED
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// source_changed_cache=true;
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#endif
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_path = p_path;
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return OK;
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}
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bool PluginScript::has_script_signal(const StringName &p_signal) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _signals_info.has(p_signal);
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}
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void PluginScript::get_script_signal_list(List<MethodInfo> *r_signals) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, MethodInfo>::Element *e = _signals_info.front(); e != NULL; e = e->next()) {
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r_signals->push_back(e->get());
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}
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}
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int PluginScript::get_member_line(const StringName &p_member) const {
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#ifdef TOOLS_ENABLED
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if (_member_lines.has(p_member))
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return _member_lines[p_member];
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else
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#endif
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return -1;
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}
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MultiplayerAPI::RPCMode PluginScript::get_rpc_mode(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
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const Map<StringName, MultiplayerAPI::RPCMode>::Element *e = _methods_rpc_mode.find(p_method);
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if (e != NULL) {
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return e->get();
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} else {
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return MultiplayerAPI::RPC_MODE_DISABLED;
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}
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}
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MultiplayerAPI::RPCMode PluginScript::get_rset_mode(const StringName &p_variable) const {
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ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
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const Map<StringName, MultiplayerAPI::RPCMode>::Element *e = _variables_rset_mode.find(p_variable);
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if (e != NULL) {
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return e->get();
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} else {
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return MultiplayerAPI::RPC_MODE_DISABLED;
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}
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}
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PluginScript::PluginScript() :
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_data(NULL),
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_desc(NULL),
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_language(NULL),
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_tool(false),
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_valid(false),
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_script_list(this) {
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}
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void PluginScript::init(PluginScriptLanguage *language) {
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_desc = &language->_desc.script_desc;
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_language = language;
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#ifdef DEBUG_ENABLED
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_language->lock();
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_language->_script_list.add(&_script_list);
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_language->unlock();
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#endif
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}
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PluginScript::~PluginScript() {
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if (_desc && _data) {
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_desc->finish(_data);
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}
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#ifdef DEBUG_ENABLED
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if (_language) {
|
|
_language->lock();
|
|
_language->_script_list.remove(&_script_list);
|
|
_language->unlock();
|
|
}
|
|
#endif
|
|
}
|