558 lines
18 KiB
C++
558 lines
18 KiB
C++
/**************************************************************************/
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/* gdscript_function.h */
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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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#ifndef GDSCRIPT_FUNCTION_H
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#define GDSCRIPT_FUNCTION_H
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#include "gdscript_utility_functions.h"
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#include "core/object/ref_counted.h"
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#include "core/object/script_language.h"
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#include "core/os/thread.h"
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#include "core/string/string_name.h"
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#include "core/templates/pair.h"
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#include "core/templates/self_list.h"
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#include "core/variant/variant.h"
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class GDScriptInstance;
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class GDScript;
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class GDScriptDataType {
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public:
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Vector<GDScriptDataType> container_element_types;
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enum Kind {
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UNINITIALIZED,
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BUILTIN,
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NATIVE,
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SCRIPT,
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GDSCRIPT,
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};
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Kind kind = UNINITIALIZED;
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bool has_type = false;
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Variant::Type builtin_type = Variant::NIL;
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StringName native_type;
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Script *script_type = nullptr;
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Ref<Script> script_type_ref;
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bool is_type(const Variant &p_variant, bool p_allow_implicit_conversion = false) const {
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if (!has_type) {
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return true; // Can't type check
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}
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switch (kind) {
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case UNINITIALIZED:
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break;
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case BUILTIN: {
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Variant::Type var_type = p_variant.get_type();
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bool valid = builtin_type == var_type;
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if (valid && builtin_type == Variant::ARRAY && has_container_element_type(0)) {
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Array array = p_variant;
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if (array.is_typed()) {
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GDScriptDataType array_container_type = get_container_element_type(0);
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Variant::Type array_builtin_type = (Variant::Type)array.get_typed_builtin();
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StringName array_native_type = array.get_typed_class_name();
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Ref<Script> array_script_type_ref = array.get_typed_script();
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if (array_script_type_ref.is_valid()) {
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valid = (array_container_type.kind == SCRIPT || array_container_type.kind == GDSCRIPT) && array_container_type.script_type == array_script_type_ref.ptr();
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} else if (array_native_type != StringName()) {
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valid = array_container_type.kind == NATIVE && array_container_type.native_type == array_native_type;
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} else {
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valid = array_container_type.kind == BUILTIN && array_container_type.builtin_type == array_builtin_type;
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}
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} else {
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valid = false;
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}
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} else if (!valid && p_allow_implicit_conversion) {
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valid = Variant::can_convert_strict(var_type, builtin_type);
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}
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return valid;
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} break;
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case NATIVE: {
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if (p_variant.get_type() == Variant::NIL) {
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return true;
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}
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if (p_variant.get_type() != Variant::OBJECT) {
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return false;
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}
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bool was_freed = false;
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Object *obj = p_variant.get_validated_object_with_check(was_freed);
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if (!obj) {
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return !was_freed;
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}
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if (!ClassDB::is_parent_class(obj->get_class_name(), native_type)) {
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return false;
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}
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return true;
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} break;
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case SCRIPT:
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case GDSCRIPT: {
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if (p_variant.get_type() == Variant::NIL) {
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return true;
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}
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if (p_variant.get_type() != Variant::OBJECT) {
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return false;
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}
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bool was_freed = false;
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Object *obj = p_variant.get_validated_object_with_check(was_freed);
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if (!obj) {
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return !was_freed;
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}
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Ref<Script> base = obj && obj->get_script_instance() ? obj->get_script_instance()->get_script() : nullptr;
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bool valid = false;
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while (base.is_valid()) {
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if (base == script_type) {
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valid = true;
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break;
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}
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base = base->get_base_script();
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}
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return valid;
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} break;
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}
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return false;
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}
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void set_container_element_type(int p_index, const GDScriptDataType &p_element_type) {
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ERR_FAIL_COND(p_index < 0);
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while (p_index >= container_element_types.size()) {
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container_element_types.push_back(GDScriptDataType());
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}
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container_element_types.write[p_index] = GDScriptDataType(p_element_type);
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}
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GDScriptDataType get_container_element_type(int p_index) const {
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ERR_FAIL_INDEX_V(p_index, container_element_types.size(), GDScriptDataType());
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return container_element_types[p_index];
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}
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GDScriptDataType get_container_element_type_or_variant(int p_index) const {
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if (p_index < 0 || p_index >= container_element_types.size()) {
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return GDScriptDataType();
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}
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return container_element_types[p_index];
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}
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bool has_container_element_type(int p_index) const {
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return p_index >= 0 && p_index < container_element_types.size();
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}
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bool has_container_element_types() const {
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return !container_element_types.is_empty();
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}
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GDScriptDataType() = default;
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void operator=(const GDScriptDataType &p_other) {
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kind = p_other.kind;
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has_type = p_other.has_type;
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builtin_type = p_other.builtin_type;
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native_type = p_other.native_type;
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script_type = p_other.script_type;
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script_type_ref = p_other.script_type_ref;
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container_element_types = p_other.container_element_types;
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}
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GDScriptDataType(const GDScriptDataType &p_other) {
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*this = p_other;
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}
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~GDScriptDataType() {}
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};
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class GDScriptFunction {
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public:
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enum Opcode {
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OPCODE_OPERATOR,
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OPCODE_OPERATOR_VALIDATED,
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OPCODE_TYPE_TEST_BUILTIN,
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OPCODE_TYPE_TEST_ARRAY,
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OPCODE_TYPE_TEST_NATIVE,
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OPCODE_TYPE_TEST_SCRIPT,
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OPCODE_SET_KEYED,
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OPCODE_SET_KEYED_VALIDATED,
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OPCODE_SET_INDEXED_VALIDATED,
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OPCODE_GET_KEYED,
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OPCODE_GET_KEYED_VALIDATED,
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OPCODE_GET_INDEXED_VALIDATED,
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OPCODE_SET_NAMED,
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OPCODE_SET_NAMED_VALIDATED,
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OPCODE_GET_NAMED,
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OPCODE_GET_NAMED_VALIDATED,
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OPCODE_SET_MEMBER,
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OPCODE_GET_MEMBER,
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OPCODE_SET_STATIC_VARIABLE, // Only for GDScript.
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OPCODE_GET_STATIC_VARIABLE, // Only for GDScript.
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OPCODE_ASSIGN,
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OPCODE_ASSIGN_TRUE,
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OPCODE_ASSIGN_FALSE,
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OPCODE_ASSIGN_TYPED_BUILTIN,
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OPCODE_ASSIGN_TYPED_ARRAY,
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OPCODE_ASSIGN_TYPED_NATIVE,
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OPCODE_ASSIGN_TYPED_SCRIPT,
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OPCODE_CAST_TO_BUILTIN,
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OPCODE_CAST_TO_NATIVE,
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OPCODE_CAST_TO_SCRIPT,
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OPCODE_CONSTRUCT, // Only for basic types!
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OPCODE_CONSTRUCT_VALIDATED, // Only for basic types!
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OPCODE_CONSTRUCT_ARRAY,
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OPCODE_CONSTRUCT_TYPED_ARRAY,
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OPCODE_CONSTRUCT_DICTIONARY,
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OPCODE_CALL,
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OPCODE_CALL_RETURN,
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OPCODE_CALL_ASYNC,
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OPCODE_CALL_UTILITY,
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OPCODE_CALL_UTILITY_VALIDATED,
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OPCODE_CALL_GDSCRIPT_UTILITY,
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OPCODE_CALL_BUILTIN_TYPE_VALIDATED,
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OPCODE_CALL_SELF_BASE,
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OPCODE_CALL_METHOD_BIND,
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OPCODE_CALL_METHOD_BIND_RET,
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OPCODE_CALL_BUILTIN_STATIC,
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OPCODE_CALL_NATIVE_STATIC,
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OPCODE_CALL_METHOD_BIND_VALIDATED_RETURN,
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OPCODE_CALL_METHOD_BIND_VALIDATED_NO_RETURN,
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OPCODE_AWAIT,
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OPCODE_AWAIT_RESUME,
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OPCODE_CREATE_LAMBDA,
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OPCODE_CREATE_SELF_LAMBDA,
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OPCODE_JUMP,
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OPCODE_JUMP_IF,
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OPCODE_JUMP_IF_NOT,
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OPCODE_JUMP_TO_DEF_ARGUMENT,
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OPCODE_JUMP_IF_SHARED,
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OPCODE_RETURN,
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OPCODE_RETURN_TYPED_BUILTIN,
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OPCODE_RETURN_TYPED_ARRAY,
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OPCODE_RETURN_TYPED_NATIVE,
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OPCODE_RETURN_TYPED_SCRIPT,
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OPCODE_ITERATE_BEGIN,
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OPCODE_ITERATE_BEGIN_INT,
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OPCODE_ITERATE_BEGIN_FLOAT,
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OPCODE_ITERATE_BEGIN_VECTOR2,
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OPCODE_ITERATE_BEGIN_VECTOR2I,
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OPCODE_ITERATE_BEGIN_VECTOR3,
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OPCODE_ITERATE_BEGIN_VECTOR3I,
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OPCODE_ITERATE_BEGIN_STRING,
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OPCODE_ITERATE_BEGIN_DICTIONARY,
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OPCODE_ITERATE_BEGIN_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_BYTE_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_INT32_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_INT64_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_FLOAT32_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_FLOAT64_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_STRING_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_VECTOR2_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_VECTOR3_ARRAY,
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OPCODE_ITERATE_BEGIN_PACKED_COLOR_ARRAY,
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OPCODE_ITERATE_BEGIN_OBJECT,
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OPCODE_ITERATE,
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OPCODE_ITERATE_INT,
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OPCODE_ITERATE_FLOAT,
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OPCODE_ITERATE_VECTOR2,
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OPCODE_ITERATE_VECTOR2I,
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OPCODE_ITERATE_VECTOR3,
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OPCODE_ITERATE_VECTOR3I,
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OPCODE_ITERATE_STRING,
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OPCODE_ITERATE_DICTIONARY,
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OPCODE_ITERATE_ARRAY,
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OPCODE_ITERATE_PACKED_BYTE_ARRAY,
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OPCODE_ITERATE_PACKED_INT32_ARRAY,
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OPCODE_ITERATE_PACKED_INT64_ARRAY,
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OPCODE_ITERATE_PACKED_FLOAT32_ARRAY,
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OPCODE_ITERATE_PACKED_FLOAT64_ARRAY,
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OPCODE_ITERATE_PACKED_STRING_ARRAY,
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OPCODE_ITERATE_PACKED_VECTOR2_ARRAY,
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OPCODE_ITERATE_PACKED_VECTOR3_ARRAY,
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OPCODE_ITERATE_PACKED_COLOR_ARRAY,
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OPCODE_ITERATE_OBJECT,
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OPCODE_STORE_GLOBAL,
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OPCODE_STORE_NAMED_GLOBAL,
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OPCODE_TYPE_ADJUST_BOOL,
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OPCODE_TYPE_ADJUST_INT,
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OPCODE_TYPE_ADJUST_FLOAT,
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OPCODE_TYPE_ADJUST_STRING,
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OPCODE_TYPE_ADJUST_VECTOR2,
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OPCODE_TYPE_ADJUST_VECTOR2I,
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OPCODE_TYPE_ADJUST_RECT2,
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OPCODE_TYPE_ADJUST_RECT2I,
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OPCODE_TYPE_ADJUST_VECTOR3,
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OPCODE_TYPE_ADJUST_VECTOR3I,
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OPCODE_TYPE_ADJUST_TRANSFORM2D,
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OPCODE_TYPE_ADJUST_VECTOR4,
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OPCODE_TYPE_ADJUST_VECTOR4I,
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OPCODE_TYPE_ADJUST_PLANE,
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OPCODE_TYPE_ADJUST_QUATERNION,
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OPCODE_TYPE_ADJUST_AABB,
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OPCODE_TYPE_ADJUST_BASIS,
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OPCODE_TYPE_ADJUST_TRANSFORM3D,
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OPCODE_TYPE_ADJUST_PROJECTION,
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OPCODE_TYPE_ADJUST_COLOR,
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OPCODE_TYPE_ADJUST_STRING_NAME,
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OPCODE_TYPE_ADJUST_NODE_PATH,
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OPCODE_TYPE_ADJUST_RID,
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OPCODE_TYPE_ADJUST_OBJECT,
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OPCODE_TYPE_ADJUST_CALLABLE,
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OPCODE_TYPE_ADJUST_SIGNAL,
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OPCODE_TYPE_ADJUST_DICTIONARY,
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OPCODE_TYPE_ADJUST_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_BYTE_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_INT32_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_INT64_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_FLOAT32_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_FLOAT64_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_STRING_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_VECTOR2_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_VECTOR3_ARRAY,
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OPCODE_TYPE_ADJUST_PACKED_COLOR_ARRAY,
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OPCODE_ASSERT,
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OPCODE_BREAKPOINT,
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OPCODE_LINE,
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OPCODE_END
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};
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enum Address {
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ADDR_BITS = 24,
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ADDR_MASK = ((1 << ADDR_BITS) - 1),
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ADDR_TYPE_MASK = ~ADDR_MASK,
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ADDR_TYPE_STACK = 0,
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ADDR_TYPE_CONSTANT = 1,
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ADDR_TYPE_MEMBER = 2,
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ADDR_TYPE_MAX = 3,
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};
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enum FixedAddresses {
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ADDR_STACK_SELF = 0,
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ADDR_STACK_CLASS = 1,
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ADDR_STACK_NIL = 2,
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FIXED_ADDRESSES_MAX = 3,
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ADDR_SELF = ADDR_STACK_SELF | (ADDR_TYPE_STACK << ADDR_BITS),
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ADDR_CLASS = ADDR_STACK_CLASS | (ADDR_TYPE_STACK << ADDR_BITS),
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ADDR_NIL = ADDR_STACK_NIL | (ADDR_TYPE_STACK << ADDR_BITS),
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};
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struct StackDebug {
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int line;
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int pos;
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bool added;
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StringName identifier;
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};
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private:
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friend class GDScript;
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friend class GDScriptCompiler;
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friend class GDScriptByteCodeGenerator;
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friend class GDScriptLanguage;
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StringName name;
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StringName source;
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bool _static = false;
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Vector<GDScriptDataType> argument_types;
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GDScriptDataType return_type;
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MethodInfo method_info;
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Variant rpc_config;
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GDScript *_script = nullptr;
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int _initial_line = 0;
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int _argument_count = 0;
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int _stack_size = 0;
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int _instruction_args_size = 0;
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SelfList<GDScriptFunction> function_list{ this };
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mutable Variant nil;
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HashMap<int, Variant::Type> temporary_slots;
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List<StackDebug> stack_debug;
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Vector<int> code;
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Vector<int> default_arguments;
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Vector<Variant> constants;
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Vector<StringName> global_names;
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Vector<Variant::ValidatedOperatorEvaluator> operator_funcs;
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Vector<Variant::ValidatedSetter> setters;
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Vector<Variant::ValidatedGetter> getters;
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Vector<Variant::ValidatedKeyedSetter> keyed_setters;
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Vector<Variant::ValidatedKeyedGetter> keyed_getters;
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Vector<Variant::ValidatedIndexedSetter> indexed_setters;
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Vector<Variant::ValidatedIndexedGetter> indexed_getters;
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Vector<Variant::ValidatedBuiltInMethod> builtin_methods;
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Vector<Variant::ValidatedConstructor> constructors;
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Vector<Variant::ValidatedUtilityFunction> utilities;
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Vector<GDScriptUtilityFunctions::FunctionPtr> gds_utilities;
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Vector<MethodBind *> methods;
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Vector<GDScriptFunction *> lambdas;
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int _code_size = 0;
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int _default_arg_count = 0;
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int _constant_count = 0;
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int _global_names_count = 0;
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int _operator_funcs_count = 0;
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int _setters_count = 0;
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int _getters_count = 0;
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int _keyed_setters_count = 0;
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int _keyed_getters_count = 0;
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int _indexed_setters_count = 0;
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int _indexed_getters_count = 0;
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int _builtin_methods_count = 0;
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int _constructors_count = 0;
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int _utilities_count = 0;
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int _gds_utilities_count = 0;
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int _methods_count = 0;
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int _lambdas_count = 0;
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int *_code_ptr = nullptr;
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const int *_default_arg_ptr = nullptr;
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mutable Variant *_constants_ptr = nullptr;
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const StringName *_global_names_ptr = nullptr;
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const Variant::ValidatedOperatorEvaluator *_operator_funcs_ptr = nullptr;
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const Variant::ValidatedSetter *_setters_ptr = nullptr;
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const Variant::ValidatedGetter *_getters_ptr = nullptr;
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const Variant::ValidatedKeyedSetter *_keyed_setters_ptr = nullptr;
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const Variant::ValidatedKeyedGetter *_keyed_getters_ptr = nullptr;
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const Variant::ValidatedIndexedSetter *_indexed_setters_ptr = nullptr;
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const Variant::ValidatedIndexedGetter *_indexed_getters_ptr = nullptr;
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const Variant::ValidatedBuiltInMethod *_builtin_methods_ptr = nullptr;
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const Variant::ValidatedConstructor *_constructors_ptr = nullptr;
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const Variant::ValidatedUtilityFunction *_utilities_ptr = nullptr;
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const GDScriptUtilityFunctions::FunctionPtr *_gds_utilities_ptr = nullptr;
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MethodBind **_methods_ptr = nullptr;
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GDScriptFunction **_lambdas_ptr = nullptr;
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#ifdef DEBUG_ENABLED
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CharString func_cname;
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const char *_func_cname = nullptr;
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Vector<String> operator_names;
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Vector<String> setter_names;
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Vector<String> getter_names;
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Vector<String> builtin_methods_names;
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Vector<String> constructors_names;
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Vector<String> utilities_names;
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Vector<String> gds_utilities_names;
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struct Profile {
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StringName signature;
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SafeNumeric<uint64_t> call_count;
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SafeNumeric<uint64_t> self_time;
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SafeNumeric<uint64_t> total_time;
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SafeNumeric<uint64_t> frame_call_count;
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SafeNumeric<uint64_t> frame_self_time;
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SafeNumeric<uint64_t> frame_total_time;
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uint64_t last_frame_call_count = 0;
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uint64_t last_frame_self_time = 0;
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uint64_t last_frame_total_time = 0;
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typedef struct NativeProfile {
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uint64_t call_count;
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uint64_t total_time;
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String signature;
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} NativeProfile;
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HashMap<String, NativeProfile> native_calls;
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HashMap<String, NativeProfile> last_native_calls;
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} profile;
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#endif
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_FORCE_INLINE_ String _get_call_error(const Callable::CallError &p_err, const String &p_where, const Variant **argptrs) const;
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Variant _get_default_variant_for_data_type(const GDScriptDataType &p_data_type);
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public:
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static constexpr int MAX_CALL_DEPTH = 2048; // Limit to try to avoid crash because of a stack overflow.
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struct CallState {
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GDScript *script = nullptr;
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GDScriptInstance *instance = nullptr;
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#ifdef DEBUG_ENABLED
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StringName function_name;
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String script_path;
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#endif
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Vector<uint8_t> stack;
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int stack_size = 0;
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uint32_t alloca_size = 0;
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int ip = 0;
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int line = 0;
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int defarg = 0;
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Variant result;
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};
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_FORCE_INLINE_ StringName get_name() const { return name; }
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_FORCE_INLINE_ StringName get_source() const { return source; }
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_FORCE_INLINE_ GDScript *get_script() const { return _script; }
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_FORCE_INLINE_ bool is_static() const { return _static; }
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_FORCE_INLINE_ MethodInfo get_method_info() const { return method_info; }
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_FORCE_INLINE_ int get_argument_count() const { return _argument_count; }
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_FORCE_INLINE_ Variant get_rpc_config() const { return rpc_config; }
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_FORCE_INLINE_ int get_max_stack_size() const { return _stack_size; }
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Variant get_constant(int p_idx) const;
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StringName get_global_name(int p_idx) const;
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Variant call(GDScriptInstance *p_instance, const Variant **p_args, int p_argcount, Callable::CallError &r_err, CallState *p_state = nullptr);
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void debug_get_stack_member_state(int p_line, List<Pair<StringName, int>> *r_stackvars) const;
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#ifdef DEBUG_ENABLED
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void _profile_native_call(uint64_t p_t_taken, const String &p_function_name, const String &p_instance_class_name = String());
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void disassemble(const Vector<String> &p_code_lines) const;
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#endif
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GDScriptFunction();
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~GDScriptFunction();
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};
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class GDScriptFunctionState : public RefCounted {
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GDCLASS(GDScriptFunctionState, RefCounted);
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friend class GDScriptFunction;
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GDScriptFunction *function = nullptr;
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GDScriptFunction::CallState state;
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Variant _signal_callback(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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Ref<GDScriptFunctionState> first_state;
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SelfList<GDScriptFunctionState> scripts_list;
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SelfList<GDScriptFunctionState> instances_list;
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protected:
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static void _bind_methods();
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public:
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bool is_valid(bool p_extended_check = false) const;
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Variant resume(const Variant &p_arg = Variant());
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void _clear_stack();
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void _clear_connections();
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GDScriptFunctionState();
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~GDScriptFunctionState();
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};
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#endif // GDSCRIPT_FUNCTION_H
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