541 lines
13 KiB
C++
541 lines
13 KiB
C++
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/*************************************************************************/
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/* gdscript_disassembler.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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#ifdef DEBUG_ENABLED
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#include "gdscript_function.h"
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#include "core/string/string_builder.h"
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#include "gdscript.h"
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#include "gdscript_functions.h"
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static String _get_variant_string(const Variant &p_variant) {
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String txt;
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if (p_variant.get_type() == Variant::STRING) {
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txt = "\"" + String(p_variant) + "\"";
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} else if (p_variant.get_type() == Variant::STRING_NAME) {
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txt = "&\"" + String(p_variant) + "\"";
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} else if (p_variant.get_type() == Variant::NODE_PATH) {
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txt = "^\"" + String(p_variant) + "\"";
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} else if (p_variant.get_type() == Variant::OBJECT) {
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Object *obj = p_variant;
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if (!obj) {
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txt = "null";
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} else {
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GDScriptNativeClass *cls = Object::cast_to<GDScriptNativeClass>(obj);
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if (cls) {
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txt += cls->get_name();
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txt += " (class)";
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} else {
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txt = obj->get_class();
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if (obj->get_script_instance()) {
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txt += "(" + obj->get_script_instance()->get_script()->get_path() + ")";
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}
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}
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}
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} else {
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txt = p_variant;
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}
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return txt;
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}
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static String _disassemble_address(const GDScript *p_script, const GDScriptFunction &p_function, int p_address) {
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int addr = p_address & GDScriptFunction::ADDR_MASK;
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switch (p_address >> GDScriptFunction::ADDR_BITS) {
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case GDScriptFunction::ADDR_TYPE_SELF: {
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return "self";
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} break;
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case GDScriptFunction::ADDR_TYPE_CLASS: {
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return "class";
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} break;
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case GDScriptFunction::ADDR_TYPE_MEMBER: {
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return "member(" + p_script->debug_get_member_by_index(addr) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_CLASS_CONSTANT: {
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return "class_const(" + p_function.get_global_name(addr) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_LOCAL_CONSTANT: {
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return "const(" + _get_variant_string(p_function.get_constant(addr)) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_STACK: {
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return "stack(" + itos(addr) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_STACK_VARIABLE: {
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return "var_stack(" + itos(addr) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_GLOBAL: {
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return "global(" + _get_variant_string(GDScriptLanguage::get_singleton()->get_global_array()[addr]) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_NAMED_GLOBAL: {
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return "named_global(" + p_function.get_global_name(addr) + ")";
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} break;
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case GDScriptFunction::ADDR_TYPE_NIL: {
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return "nil";
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} break;
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}
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return "<err>";
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}
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void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
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#define DADDR(m_ip) (_disassemble_address(_script, *this, _code_ptr[ip + m_ip]))
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for (int ip = 0; ip < _code_size;) {
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StringBuilder text;
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int incr = 0;
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text += " ";
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text += itos(ip);
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text += ": ";
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// This makes the compiler complain if some opcode is unchecked in the switch.
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Opcode code = Opcode(_code_ptr[ip]);
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switch (code) {
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case OPCODE_OPERATOR: {
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int operation = _code_ptr[ip + 1];
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text += "operator ";
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text += DADDR(4);
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text += " = ";
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text += DADDR(2);
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text += " ";
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text += Variant::get_operator_name(Variant::Operator(operation));
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text += " ";
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text += DADDR(3);
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incr += 5;
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} break;
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case OPCODE_EXTENDS_TEST: {
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text += "is object ";
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text += DADDR(3);
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text += " = ";
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text += DADDR(1);
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text += " is ";
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text += DADDR(2);
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incr += 4;
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} break;
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case OPCODE_IS_BUILTIN: {
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text += "is builtin ";
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text += DADDR(3);
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text += " = ";
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text += DADDR(1);
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text += " is ";
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text += Variant::get_type_name(Variant::Type(_code_ptr[ip + 2]));
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incr += 4;
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} break;
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case OPCODE_SET: {
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text += "set ";
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text += DADDR(1);
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text += "[";
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text += DADDR(2);
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text += "] = ";
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text += DADDR(3);
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incr += 4;
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} break;
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case OPCODE_GET: {
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text += "get ";
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text += DADDR(3);
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text += " = ";
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text += DADDR(1);
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text += "[";
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text += DADDR(2);
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text += "]";
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incr += 4;
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} break;
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case OPCODE_SET_NAMED: {
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text += "set_named ";
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text += DADDR(1);
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text += "[\"";
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text += _global_names_ptr[_code_ptr[ip + 2]];
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text += "\"] = ";
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text += DADDR(3);
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incr += 4;
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} break;
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case OPCODE_GET_NAMED: {
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text += "get_named ";
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text += DADDR(3);
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text += " = ";
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text += DADDR(1);
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text += "[\"";
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text += _global_names_ptr[_code_ptr[ip + 2]];
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text += "\"]";
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incr += 4;
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} break;
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case OPCODE_SET_MEMBER: {
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text += "set_member ";
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text += "[\"";
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text += _global_names_ptr[_code_ptr[ip + 1]];
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text += "\"] = ";
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text += DADDR(2);
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incr += 3;
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} break;
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case OPCODE_GET_MEMBER: {
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text += "get_member ";
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text += DADDR(2);
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text += " = ";
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text += "[\"";
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text += _global_names_ptr[_code_ptr[ip + 1]];
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text += "\"]";
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incr += 3;
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} break;
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case OPCODE_ASSIGN: {
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text += "assign ";
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text += DADDR(1);
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text += " = ";
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text += DADDR(2);
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incr += 3;
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} break;
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case OPCODE_ASSIGN_TRUE: {
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text += "assign ";
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text += DADDR(1);
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text += " = true";
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incr += 2;
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} break;
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case OPCODE_ASSIGN_FALSE: {
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text += "assign ";
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text += DADDR(1);
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text += " = false";
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incr += 2;
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} break;
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case OPCODE_ASSIGN_TYPED_BUILTIN: {
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text += "assign typed builtin (";
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text += Variant::get_type_name((Variant::Type)_code_ptr[ip + 1]);
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text += ") ";
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text += DADDR(2);
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text += " = ";
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text += DADDR(3);
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incr += 4;
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} break;
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case OPCODE_ASSIGN_TYPED_NATIVE: {
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Variant class_name = _constants_ptr[_code_ptr[ip + 1]];
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GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(class_name.operator Object *());
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text += "assign typed native (";
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text += nc->get_name().operator String();
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text += ") ";
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text += DADDR(2);
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text += " = ";
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text += DADDR(3);
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incr += 4;
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} break;
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case OPCODE_ASSIGN_TYPED_SCRIPT: {
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Variant script = _constants_ptr[_code_ptr[ip + 1]];
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Script *sc = Object::cast_to<Script>(script.operator Object *());
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text += "assign typed script (";
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text += sc->get_path();
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text += ") ";
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text += DADDR(2);
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text += " = ";
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||
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text += DADDR(3);
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||
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incr += 4;
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||
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} break;
|
||
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case OPCODE_CAST_TO_BUILTIN: {
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text += "cast builtin ";
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text += DADDR(3);
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text += " = ";
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text += DADDR(2);
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text += " as ";
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text += Variant::get_type_name(Variant::Type(_code_ptr[ip + 1]));
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||
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||
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incr += 4;
|
||
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} break;
|
||
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case OPCODE_CAST_TO_NATIVE: {
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Variant class_name = _constants_ptr[_code_ptr[ip + 1]];
|
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GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(class_name.operator Object *());
|
||
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|
||
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text += "cast native ";
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||
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text += DADDR(3);
|
||
|
|
text += " = ";
|
||
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|
text += DADDR(2);
|
||
|
|
text += " as ";
|
||
|
|
text += nc->get_name();
|
||
|
|
|
||
|
|
incr += 4;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CAST_TO_SCRIPT: {
|
||
|
|
text += "cast ";
|
||
|
|
text += DADDR(3);
|
||
|
|
text += " = ";
|
||
|
|
text += DADDR(2);
|
||
|
|
text += " as ";
|
||
|
|
text += DADDR(1);
|
||
|
|
|
||
|
|
incr += 4;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CONSTRUCT: {
|
||
|
|
Variant::Type t = Variant::Type(_code_ptr[ip + 1]);
|
||
|
|
int argc = _code_ptr[ip + 2];
|
||
|
|
|
||
|
|
text += "construct ";
|
||
|
|
text += DADDR(3 + argc);
|
||
|
|
text += " = ";
|
||
|
|
|
||
|
|
text += Variant::get_type_name(t) + "(";
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(i + 3);
|
||
|
|
}
|
||
|
|
text += ")";
|
||
|
|
|
||
|
|
incr = 4 + argc;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CONSTRUCT_ARRAY: {
|
||
|
|
int argc = _code_ptr[ip + 1];
|
||
|
|
text += " make_array ";
|
||
|
|
text += DADDR(2 + argc);
|
||
|
|
text += " = [";
|
||
|
|
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(2 + i);
|
||
|
|
}
|
||
|
|
|
||
|
|
text += "]";
|
||
|
|
|
||
|
|
incr += 3 + argc;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CONSTRUCT_DICTIONARY: {
|
||
|
|
int argc = _code_ptr[ip + 1];
|
||
|
|
text += "make_dict ";
|
||
|
|
text += DADDR(2 + argc * 2);
|
||
|
|
text += " = {";
|
||
|
|
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(2 + i * 2 + 0);
|
||
|
|
text += ": ";
|
||
|
|
text += DADDR(2 + i * 2 + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
text += "}";
|
||
|
|
|
||
|
|
incr += 3 + argc * 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CALL:
|
||
|
|
case OPCODE_CALL_RETURN:
|
||
|
|
case OPCODE_CALL_ASYNC: {
|
||
|
|
bool ret = _code_ptr[ip] == OPCODE_CALL_RETURN;
|
||
|
|
bool async = _code_ptr[ip] == OPCODE_CALL_ASYNC;
|
||
|
|
|
||
|
|
if (ret) {
|
||
|
|
text += "call-ret ";
|
||
|
|
} else if (async) {
|
||
|
|
text += "call-async ";
|
||
|
|
} else {
|
||
|
|
text += "call ";
|
||
|
|
}
|
||
|
|
|
||
|
|
int argc = _code_ptr[ip + 1];
|
||
|
|
if (ret || async) {
|
||
|
|
text += DADDR(4 + argc) + " = ";
|
||
|
|
}
|
||
|
|
|
||
|
|
text += DADDR(2) + ".";
|
||
|
|
text += String(_global_names_ptr[_code_ptr[ip + 3]]);
|
||
|
|
text += "(";
|
||
|
|
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(4 + i);
|
||
|
|
}
|
||
|
|
text += ")";
|
||
|
|
|
||
|
|
incr = 5 + argc;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CALL_BUILT_IN: {
|
||
|
|
text += "call-built-in ";
|
||
|
|
|
||
|
|
int argc = _code_ptr[ip + 2];
|
||
|
|
text += DADDR(3 + argc) + " = ";
|
||
|
|
|
||
|
|
text += GDScriptFunctions::get_func_name(GDScriptFunctions::Function(_code_ptr[ip + 1]));
|
||
|
|
text += "(";
|
||
|
|
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(3 + i);
|
||
|
|
}
|
||
|
|
text += ")";
|
||
|
|
|
||
|
|
incr = 4 + argc;
|
||
|
|
} break;
|
||
|
|
case OPCODE_CALL_SELF_BASE: {
|
||
|
|
text += "call-self-base ";
|
||
|
|
|
||
|
|
int argc = _code_ptr[ip + 2];
|
||
|
|
text += DADDR(3 + argc) + " = ";
|
||
|
|
|
||
|
|
text += _global_names_ptr[_code_ptr[ip + 1]];
|
||
|
|
text += "(";
|
||
|
|
|
||
|
|
for (int i = 0; i < argc; i++) {
|
||
|
|
if (i > 0)
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(3 + i);
|
||
|
|
}
|
||
|
|
text += ")";
|
||
|
|
|
||
|
|
incr = 4 + argc;
|
||
|
|
} break;
|
||
|
|
case OPCODE_AWAIT: {
|
||
|
|
text += "await ";
|
||
|
|
text += DADDR(1);
|
||
|
|
|
||
|
|
incr += 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_AWAIT_RESUME: {
|
||
|
|
text += "await resume ";
|
||
|
|
text += DADDR(1);
|
||
|
|
|
||
|
|
incr = 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_JUMP: {
|
||
|
|
text += "jump ";
|
||
|
|
text += itos(_code_ptr[ip + 1]);
|
||
|
|
|
||
|
|
incr = 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_JUMP_IF: {
|
||
|
|
text += "jump-if ";
|
||
|
|
text += DADDR(1);
|
||
|
|
text += " to ";
|
||
|
|
text += itos(_code_ptr[ip + 2]);
|
||
|
|
|
||
|
|
incr = 3;
|
||
|
|
} break;
|
||
|
|
case OPCODE_JUMP_IF_NOT: {
|
||
|
|
text += "jump-if-not ";
|
||
|
|
text += DADDR(1);
|
||
|
|
text += " to ";
|
||
|
|
text += itos(_code_ptr[ip + 2]);
|
||
|
|
|
||
|
|
incr = 3;
|
||
|
|
} break;
|
||
|
|
case OPCODE_JUMP_TO_DEF_ARGUMENT: {
|
||
|
|
text += "jump-to-default-argument ";
|
||
|
|
|
||
|
|
incr = 1;
|
||
|
|
} break;
|
||
|
|
case OPCODE_RETURN: {
|
||
|
|
text += "return ";
|
||
|
|
text += DADDR(1);
|
||
|
|
|
||
|
|
incr = 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_ITERATE_BEGIN: {
|
||
|
|
text += "for-init ";
|
||
|
|
text += DADDR(4);
|
||
|
|
text += " in ";
|
||
|
|
text += DADDR(2);
|
||
|
|
text += " counter ";
|
||
|
|
text += DADDR(1);
|
||
|
|
text += " end ";
|
||
|
|
text += itos(_code_ptr[ip + 3]);
|
||
|
|
|
||
|
|
incr += 5;
|
||
|
|
} break;
|
||
|
|
case OPCODE_ITERATE: {
|
||
|
|
text += "for-loop ";
|
||
|
|
text += DADDR(4);
|
||
|
|
text += " in ";
|
||
|
|
text += DADDR(2);
|
||
|
|
text += " counter ";
|
||
|
|
text += DADDR(1);
|
||
|
|
text += " end ";
|
||
|
|
text += itos(_code_ptr[ip + 3]);
|
||
|
|
|
||
|
|
incr += 5;
|
||
|
|
} break;
|
||
|
|
case OPCODE_LINE: {
|
||
|
|
int line = _code_ptr[ip + 1] - 1;
|
||
|
|
if (line >= 0 && line < p_code_lines.size()) {
|
||
|
|
text += "line ";
|
||
|
|
text += itos(line + 1);
|
||
|
|
text += ": ";
|
||
|
|
text += p_code_lines[line];
|
||
|
|
} else {
|
||
|
|
text += "";
|
||
|
|
}
|
||
|
|
|
||
|
|
incr += 2;
|
||
|
|
} break;
|
||
|
|
case OPCODE_ASSERT: {
|
||
|
|
text += "assert (";
|
||
|
|
text += DADDR(1);
|
||
|
|
text += ", ";
|
||
|
|
text += DADDR(2);
|
||
|
|
text += ")";
|
||
|
|
|
||
|
|
incr += 3;
|
||
|
|
} break;
|
||
|
|
case OPCODE_BREAKPOINT: {
|
||
|
|
text += "breakpoint";
|
||
|
|
|
||
|
|
incr += 1;
|
||
|
|
} break;
|
||
|
|
case OPCODE_END: {
|
||
|
|
text += "== END ==";
|
||
|
|
|
||
|
|
incr += 1;
|
||
|
|
} break;
|
||
|
|
}
|
||
|
|
|
||
|
|
ip += incr;
|
||
|
|
if (text.get_string_length() > 0) {
|
||
|
|
print_line(text.as_string());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|