745 lines
25 KiB
C++
745 lines
25 KiB
C++
/*************************************************************************/
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/* gdscript_byte_codegen.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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#include "gdscript_byte_codegen.h"
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#include "core/debugger/engine_debugger.h"
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#include "gdscript.h"
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uint32_t GDScriptByteCodeGenerator::add_parameter(const StringName &p_name, bool p_is_optional, const GDScriptDataType &p_type) {
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#ifdef TOOLS_ENABLED
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function->arg_names.push_back(p_name);
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#endif
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function->_argument_count++;
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function->argument_types.push_back(p_type);
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if (p_is_optional) {
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function->_default_arg_count++;
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}
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return add_local(p_name, p_type);
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}
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uint32_t GDScriptByteCodeGenerator::add_local(const StringName &p_name, const GDScriptDataType &p_type) {
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int stack_pos = increase_stack();
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add_stack_identifier(p_name, stack_pos);
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return stack_pos;
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}
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uint32_t GDScriptByteCodeGenerator::add_local_constant(const StringName &p_name, const Variant &p_constant) {
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int index = add_or_get_constant(p_constant);
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local_constants[p_name] = index;
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return index;
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}
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uint32_t GDScriptByteCodeGenerator::add_or_get_constant(const Variant &p_constant) {
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if (constant_map.has(p_constant)) {
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return constant_map[p_constant];
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}
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int index = constant_map.size();
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constant_map[p_constant] = index;
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return index;
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}
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uint32_t GDScriptByteCodeGenerator::add_or_get_name(const StringName &p_name) {
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return get_name_map_pos(p_name);
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}
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uint32_t GDScriptByteCodeGenerator::add_temporary() {
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current_temporaries++;
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return increase_stack();
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}
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void GDScriptByteCodeGenerator::pop_temporary() {
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current_stack_size--;
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current_temporaries--;
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}
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void GDScriptByteCodeGenerator::start_parameters() {
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if (function->_default_arg_count > 0) {
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append(GDScriptFunction::OPCODE_JUMP_TO_DEF_ARGUMENT);
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function->default_arguments.push_back(opcodes.size());
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}
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}
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void GDScriptByteCodeGenerator::end_parameters() {
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function->default_arguments.invert();
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}
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void GDScriptByteCodeGenerator::write_start(GDScript *p_script, const StringName &p_function_name, bool p_static, MultiplayerAPI::RPCMode p_rpc_mode, const GDScriptDataType &p_return_type) {
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function = memnew(GDScriptFunction);
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debug_stack = EngineDebugger::is_active();
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function->name = p_function_name;
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function->_script = p_script;
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function->source = p_script->get_path();
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#ifdef DEBUG_ENABLED
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function->func_cname = (String(function->source) + " - " + String(p_function_name)).utf8();
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function->_func_cname = function->func_cname.get_data();
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#endif
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function->_static = p_static;
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function->return_type = p_return_type;
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function->rpc_mode = p_rpc_mode;
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function->_argument_count = 0;
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}
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GDScriptFunction *GDScriptByteCodeGenerator::write_end() {
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append(GDScriptFunction::OPCODE_END);
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if (constant_map.size()) {
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function->_constant_count = constant_map.size();
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function->constants.resize(constant_map.size());
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function->_constants_ptr = function->constants.ptrw();
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const Variant *K = nullptr;
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while ((K = constant_map.next(K))) {
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int idx = constant_map[*K];
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function->constants.write[idx] = *K;
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}
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} else {
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function->_constants_ptr = nullptr;
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function->_constant_count = 0;
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}
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if (name_map.size()) {
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function->global_names.resize(name_map.size());
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function->_global_names_ptr = &function->global_names[0];
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for (Map<StringName, int>::Element *E = name_map.front(); E; E = E->next()) {
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function->global_names.write[E->get()] = E->key();
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}
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function->_global_names_count = function->global_names.size();
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} else {
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function->_global_names_ptr = nullptr;
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function->_global_names_count = 0;
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}
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if (opcodes.size()) {
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function->code = opcodes;
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function->_code_ptr = &function->code[0];
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function->_code_size = opcodes.size();
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} else {
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function->_code_ptr = nullptr;
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function->_code_size = 0;
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}
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if (function->default_arguments.size()) {
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function->_default_arg_count = function->default_arguments.size() - 1;
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function->_default_arg_ptr = &function->default_arguments[0];
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} else {
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function->_default_arg_count = 0;
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function->_default_arg_ptr = nullptr;
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}
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if (debug_stack) {
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function->stack_debug = stack_debug;
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}
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function->_stack_size = stack_max;
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function->_call_size = call_max;
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ended = true;
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return function;
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}
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#ifdef DEBUG_ENABLED
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void GDScriptByteCodeGenerator::set_signature(const String &p_signature) {
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function->profile.signature = p_signature;
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}
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#endif
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void GDScriptByteCodeGenerator::set_initial_line(int p_line) {
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function->_initial_line = p_line;
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}
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void GDScriptByteCodeGenerator::write_operator(const Address &p_target, Variant::Operator p_operator, const Address &p_left_operand, const Address &p_right_operand) {
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append(GDScriptFunction::OPCODE_OPERATOR);
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append(p_operator);
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append(p_left_operand);
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append(p_right_operand);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_type_test(const Address &p_target, const Address &p_source, const Address &p_type) {
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append(GDScriptFunction::OPCODE_EXTENDS_TEST);
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append(p_source);
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append(p_type);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_type_test_builtin(const Address &p_target, const Address &p_source, Variant::Type p_type) {
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append(GDScriptFunction::OPCODE_IS_BUILTIN);
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append(p_source);
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append(p_type);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_and_left_operand(const Address &p_left_operand) {
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append(GDScriptFunction::OPCODE_JUMP_IF_NOT);
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append(p_left_operand);
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logic_op_jump_pos1.push_back(opcodes.size());
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append(0); // Jump target, will be patched.
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}
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void GDScriptByteCodeGenerator::write_and_right_operand(const Address &p_right_operand) {
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append(GDScriptFunction::OPCODE_JUMP_IF_NOT);
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append(p_right_operand);
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logic_op_jump_pos2.push_back(opcodes.size());
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append(0); // Jump target, will be patched.
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}
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void GDScriptByteCodeGenerator::write_end_and(const Address &p_target) {
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// If here means both operands are true.
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append(GDScriptFunction::OPCODE_ASSIGN_TRUE);
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append(p_target);
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// Jump away from the fail condition.
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append(GDScriptFunction::OPCODE_JUMP);
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append(opcodes.size() + 3);
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// Here it means one of operands is false.
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patch_jump(logic_op_jump_pos1.back()->get());
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patch_jump(logic_op_jump_pos2.back()->get());
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logic_op_jump_pos1.pop_back();
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logic_op_jump_pos2.pop_back();
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append(GDScriptFunction::OPCODE_ASSIGN_FALSE);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_or_left_operand(const Address &p_left_operand) {
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append(GDScriptFunction::OPCODE_JUMP_IF);
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append(p_left_operand);
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logic_op_jump_pos1.push_back(opcodes.size());
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append(0); // Jump target, will be patched.
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}
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void GDScriptByteCodeGenerator::write_or_right_operand(const Address &p_right_operand) {
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append(GDScriptFunction::OPCODE_JUMP_IF);
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append(p_right_operand);
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logic_op_jump_pos2.push_back(opcodes.size());
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append(0); // Jump target, will be patched.
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}
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void GDScriptByteCodeGenerator::write_end_or(const Address &p_target) {
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// If here means both operands are false.
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append(GDScriptFunction::OPCODE_ASSIGN_FALSE);
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append(p_target);
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// Jump away from the success condition.
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append(GDScriptFunction::OPCODE_JUMP);
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append(opcodes.size() + 3);
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// Here it means one of operands is false.
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patch_jump(logic_op_jump_pos1.back()->get());
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patch_jump(logic_op_jump_pos2.back()->get());
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logic_op_jump_pos1.pop_back();
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logic_op_jump_pos2.pop_back();
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append(GDScriptFunction::OPCODE_ASSIGN_TRUE);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_start_ternary(const Address &p_target) {
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ternary_result.push_back(p_target);
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}
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void GDScriptByteCodeGenerator::write_ternary_condition(const Address &p_condition) {
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append(GDScriptFunction::OPCODE_JUMP_IF_NOT);
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append(p_condition);
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ternary_jump_fail_pos.push_back(opcodes.size());
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append(0); // Jump target, will be patched.
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}
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void GDScriptByteCodeGenerator::write_ternary_true_expr(const Address &p_expr) {
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append(GDScriptFunction::OPCODE_ASSIGN);
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append(ternary_result.back()->get());
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append(p_expr);
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// Jump away from the false path.
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append(GDScriptFunction::OPCODE_JUMP);
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ternary_jump_skip_pos.push_back(opcodes.size());
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append(0);
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// Fail must jump here.
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patch_jump(ternary_jump_fail_pos.back()->get());
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ternary_jump_fail_pos.pop_back();
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}
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void GDScriptByteCodeGenerator::write_ternary_false_expr(const Address &p_expr) {
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append(GDScriptFunction::OPCODE_ASSIGN);
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append(ternary_result.back()->get());
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append(p_expr);
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}
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void GDScriptByteCodeGenerator::write_end_ternary() {
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patch_jump(ternary_jump_skip_pos.back()->get());
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ternary_jump_skip_pos.pop_back();
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}
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void GDScriptByteCodeGenerator::write_set(const Address &p_target, const Address &p_index, const Address &p_source) {
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append(GDScriptFunction::OPCODE_SET);
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append(p_target);
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append(p_index);
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append(p_source);
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}
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void GDScriptByteCodeGenerator::write_get(const Address &p_target, const Address &p_index, const Address &p_source) {
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append(GDScriptFunction::OPCODE_GET);
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append(p_source);
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append(p_index);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_set_named(const Address &p_target, const StringName &p_name, const Address &p_source) {
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append(GDScriptFunction::OPCODE_SET_NAMED);
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append(p_target);
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append(p_name);
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append(p_source);
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}
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void GDScriptByteCodeGenerator::write_get_named(const Address &p_target, const StringName &p_name, const Address &p_source) {
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append(GDScriptFunction::OPCODE_GET_NAMED);
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append(p_source);
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append(p_name);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_set_member(const Address &p_value, const StringName &p_name) {
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append(GDScriptFunction::OPCODE_SET_MEMBER);
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append(p_name);
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append(p_value);
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}
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void GDScriptByteCodeGenerator::write_get_member(const Address &p_target, const StringName &p_name) {
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append(GDScriptFunction::OPCODE_GET_MEMBER);
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append(p_name);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Address &p_source) {
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if (p_target.type.has_type && !p_source.type.has_type) {
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// Typed assignment.
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switch (p_target.type.kind) {
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case GDScriptDataType::BUILTIN: {
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append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN);
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append(p_target.type.builtin_type);
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append(p_target);
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append(p_source);
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} break;
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case GDScriptDataType::NATIVE: {
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int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_target.type.native_type];
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class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS);
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append(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE);
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append(class_idx);
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append(p_target);
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append(p_source);
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} break;
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case GDScriptDataType::SCRIPT:
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case GDScriptDataType::GDSCRIPT: {
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Variant script = p_target.type.script_type;
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int idx = get_constant_pos(script);
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append(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT);
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append(idx);
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append(p_target);
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append(p_source);
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} break;
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default: {
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ERR_PRINT("Compiler bug: unresolved assign.");
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// Shouldn't get here, but fail-safe to a regular assignment
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append(GDScriptFunction::OPCODE_ASSIGN);
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append(p_target);
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append(p_source);
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}
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}
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} else {
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if (p_target.type.kind == GDScriptDataType::BUILTIN && p_source.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type != p_source.type.builtin_type) {
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// Need conversion..
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append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN);
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append(p_target.type.builtin_type);
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append(p_target);
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append(p_source);
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} else {
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// Either untyped assignment or already type-checked by the parser
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append(GDScriptFunction::OPCODE_ASSIGN);
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append(p_target);
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append(p_source);
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}
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}
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}
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void GDScriptByteCodeGenerator::write_assign_true(const Address &p_target) {
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append(GDScriptFunction::OPCODE_ASSIGN_TRUE);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_assign_false(const Address &p_target) {
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append(GDScriptFunction::OPCODE_ASSIGN_FALSE);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_assign_default_parameter(const Address &p_dst, const Address &p_src) {
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write_assign(p_dst, p_src);
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function->default_arguments.push_back(opcodes.size());
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}
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void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Address &p_source, const GDScriptDataType &p_type) {
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switch (p_type.kind) {
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case GDScriptDataType::BUILTIN: {
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append(GDScriptFunction::OPCODE_CAST_TO_BUILTIN);
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append(p_type.builtin_type);
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} break;
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case GDScriptDataType::NATIVE: {
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int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_type.native_type];
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class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS);
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append(GDScriptFunction::OPCODE_CAST_TO_NATIVE);
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append(class_idx);
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} break;
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case GDScriptDataType::SCRIPT:
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case GDScriptDataType::GDSCRIPT: {
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Variant script = p_type.script_type;
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int idx = get_constant_pos(script);
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append(GDScriptFunction::OPCODE_CAST_TO_SCRIPT);
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append(idx);
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} break;
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default: {
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return;
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}
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}
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append(p_source);
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append(p_target);
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}
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void GDScriptByteCodeGenerator::write_call(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
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append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN);
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append(p_arguments.size());
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append(p_base);
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append(p_function_name);
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for (int i = 0; i < p_arguments.size(); i++) {
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append(p_arguments[i]);
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}
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append(p_target);
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alloc_call(p_arguments.size());
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}
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void GDScriptByteCodeGenerator::write_super_call(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
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append(GDScriptFunction::OPCODE_CALL_SELF_BASE);
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append(p_function_name);
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append(p_arguments.size());
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for (int i = 0; i < p_arguments.size(); i++) {
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append(p_arguments[i]);
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}
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append(p_target);
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alloc_call(p_arguments.size());
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}
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void GDScriptByteCodeGenerator::write_call_async(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
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append(GDScriptFunction::OPCODE_CALL_ASYNC);
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append(p_arguments.size());
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append(p_base);
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append(p_function_name);
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_call_builtin(const Address &p_target, GDScriptFunctions::Function p_function, const Vector<Address> &p_arguments) {
|
|
append(GDScriptFunction::OPCODE_CALL_BUILT_IN);
|
|
append(p_function);
|
|
append(p_arguments.size());
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_call_method_bind(const Address &p_target, const Address &p_base, const MethodBind *p_method, const Vector<Address> &p_arguments) {
|
|
append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN);
|
|
append(p_arguments.size());
|
|
append(p_base);
|
|
append(p_method->get_name());
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, const Address &p_base, const MethodBind *p_method, const Vector<Address> &p_arguments) {
|
|
append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN);
|
|
append(p_arguments.size());
|
|
append(p_base);
|
|
append(p_method->get_name());
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_call_self(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
|
|
append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN);
|
|
append(p_arguments.size());
|
|
append(GDScriptFunction::ADDR_TYPE_SELF << GDScriptFunction::ADDR_BITS);
|
|
append(p_function_name);
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
|
|
append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL : GDScriptFunction::OPCODE_CALL_RETURN);
|
|
append(p_arguments.size());
|
|
append(p_base);
|
|
append(p_function_name);
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant::Type p_type, const Vector<Address> &p_arguments) {
|
|
append(GDScriptFunction::OPCODE_CONSTRUCT);
|
|
append(p_type);
|
|
append(p_arguments.size());
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
alloc_call(p_arguments.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) {
|
|
append(GDScriptFunction::OPCODE_CONSTRUCT_ARRAY);
|
|
append(p_arguments.size());
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_target, const Vector<Address> &p_arguments) {
|
|
append(GDScriptFunction::OPCODE_CONSTRUCT_DICTIONARY);
|
|
append(p_arguments.size() / 2); // This is number of key-value pairs, so only half of actual arguments.
|
|
for (int i = 0; i < p_arguments.size(); i++) {
|
|
append(p_arguments[i]);
|
|
}
|
|
append(p_target);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_await(const Address &p_target, const Address &p_operand) {
|
|
append(GDScriptFunction::OPCODE_AWAIT);
|
|
append(p_operand);
|
|
append(GDScriptFunction::OPCODE_AWAIT_RESUME);
|
|
append(p_target);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_if(const Address &p_condition) {
|
|
append(GDScriptFunction::OPCODE_JUMP_IF_NOT);
|
|
append(p_condition);
|
|
if_jmp_addrs.push_back(opcodes.size());
|
|
append(0); // Jump destination, will be patched.
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_else() {
|
|
append(GDScriptFunction::OPCODE_JUMP); // Jump from true if block;
|
|
int else_jmp_addr = opcodes.size();
|
|
append(0); // Jump destination, will be patched.
|
|
|
|
patch_jump(if_jmp_addrs.back()->get());
|
|
if_jmp_addrs.pop_back();
|
|
if_jmp_addrs.push_back(else_jmp_addr);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_endif() {
|
|
patch_jump(if_jmp_addrs.back()->get());
|
|
if_jmp_addrs.pop_back();
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_for(const Address &p_variable, const Address &p_list) {
|
|
int counter_pos = add_temporary() | (GDScriptFunction::ADDR_TYPE_STACK << GDScriptFunction::ADDR_BITS);
|
|
int container_pos = add_temporary() | (GDScriptFunction::ADDR_TYPE_STACK << GDScriptFunction::ADDR_BITS);
|
|
|
|
current_breaks_to_patch.push_back(List<int>());
|
|
|
|
// Assign container.
|
|
append(GDScriptFunction::OPCODE_ASSIGN);
|
|
append(container_pos);
|
|
append(p_list);
|
|
|
|
// Begin loop.
|
|
append(GDScriptFunction::OPCODE_ITERATE_BEGIN);
|
|
append(counter_pos);
|
|
append(container_pos);
|
|
for_jmp_addrs.push_back(opcodes.size());
|
|
append(0); // End of loop address, will be patched.
|
|
append(p_variable);
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
append(opcodes.size() + 6); // Skip over 'continue' code.
|
|
|
|
// Next iteration.
|
|
int continue_addr = opcodes.size();
|
|
continue_addrs.push_back(continue_addr);
|
|
append(GDScriptFunction::OPCODE_ITERATE);
|
|
append(counter_pos);
|
|
append(container_pos);
|
|
for_jmp_addrs.push_back(opcodes.size());
|
|
append(0); // Jump destination, will be patched.
|
|
append(p_variable);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_endfor() {
|
|
// Jump back to loop check.
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
append(continue_addrs.back()->get());
|
|
continue_addrs.pop_back();
|
|
|
|
// Patch end jumps (two of them).
|
|
for (int i = 0; i < 2; i++) {
|
|
patch_jump(for_jmp_addrs.back()->get());
|
|
for_jmp_addrs.pop_back();
|
|
}
|
|
|
|
// Patch break statements.
|
|
for (const List<int>::Element *E = current_breaks_to_patch.back()->get().front(); E; E = E->next()) {
|
|
patch_jump(E->get());
|
|
}
|
|
current_breaks_to_patch.pop_back();
|
|
|
|
// Remove loop temporaries.
|
|
pop_temporary();
|
|
pop_temporary();
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::start_while_condition() {
|
|
current_breaks_to_patch.push_back(List<int>());
|
|
continue_addrs.push_back(opcodes.size());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_while(const Address &p_condition) {
|
|
// Condition check.
|
|
append(GDScriptFunction::OPCODE_JUMP_IF_NOT);
|
|
append(p_condition);
|
|
while_jmp_addrs.push_back(opcodes.size());
|
|
append(0); // End of loop address, will be patched.
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_endwhile() {
|
|
// Jump back to loop check.
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
append(continue_addrs.back()->get());
|
|
continue_addrs.pop_back();
|
|
|
|
// Patch end jump.
|
|
patch_jump(while_jmp_addrs.back()->get());
|
|
while_jmp_addrs.pop_back();
|
|
|
|
// Patch break statements.
|
|
for (const List<int>::Element *E = current_breaks_to_patch.back()->get().front(); E; E = E->next()) {
|
|
patch_jump(E->get());
|
|
}
|
|
current_breaks_to_patch.pop_back();
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::start_match() {
|
|
match_continues_to_patch.push_back(List<int>());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::start_match_branch() {
|
|
// Patch continue statements.
|
|
for (const List<int>::Element *E = match_continues_to_patch.back()->get().front(); E; E = E->next()) {
|
|
patch_jump(E->get());
|
|
}
|
|
match_continues_to_patch.pop_back();
|
|
// Start a new list for next branch.
|
|
match_continues_to_patch.push_back(List<int>());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::end_match() {
|
|
// Patch continue statements.
|
|
for (const List<int>::Element *E = match_continues_to_patch.back()->get().front(); E; E = E->next()) {
|
|
patch_jump(E->get());
|
|
}
|
|
match_continues_to_patch.pop_back();
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_break() {
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
current_breaks_to_patch.back()->get().push_back(opcodes.size());
|
|
append(0);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_continue() {
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
append(continue_addrs.back()->get());
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_continue_match() {
|
|
append(GDScriptFunction::OPCODE_JUMP);
|
|
match_continues_to_patch.back()->get().push_back(opcodes.size());
|
|
append(0);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_breakpoint() {
|
|
append(GDScriptFunction::OPCODE_BREAKPOINT);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_newline(int p_line) {
|
|
append(GDScriptFunction::OPCODE_LINE);
|
|
append(p_line);
|
|
current_line = p_line;
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) {
|
|
append(GDScriptFunction::OPCODE_RETURN);
|
|
append(p_return_value);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::write_assert(const Address &p_test, const Address &p_message) {
|
|
append(GDScriptFunction::OPCODE_ASSERT);
|
|
append(p_test);
|
|
append(p_message);
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::start_block() {
|
|
push_stack_identifiers();
|
|
}
|
|
|
|
void GDScriptByteCodeGenerator::end_block() {
|
|
pop_stack_identifiers();
|
|
}
|
|
|
|
GDScriptByteCodeGenerator::~GDScriptByteCodeGenerator() {
|
|
if (!ended && function != nullptr) {
|
|
memdelete(function);
|
|
}
|
|
}
|