diff options
Diffstat (limited to 'modules/gdscript/gdscript_byte_codegen.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_byte_codegen.cpp | 1282 |
1 files changed, 1282 insertions, 0 deletions
diff --git a/modules/gdscript/gdscript_byte_codegen.cpp b/modules/gdscript/gdscript_byte_codegen.cpp new file mode 100644 index 0000000000..58c6b31a77 --- /dev/null +++ b/modules/gdscript/gdscript_byte_codegen.cpp @@ -0,0 +1,1282 @@ +/*************************************************************************/ +/* gdscript_byte_codegen.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "gdscript_byte_codegen.h" + +#include "core/debugger/engine_debugger.h" +#include "gdscript.h" + +uint32_t GDScriptByteCodeGenerator::add_parameter(const StringName &p_name, bool p_is_optional, const GDScriptDataType &p_type) { +#ifdef TOOLS_ENABLED + function->arg_names.push_back(p_name); +#endif + function->_argument_count++; + function->argument_types.push_back(p_type); + if (p_is_optional) { + function->_default_arg_count++; + } + + return add_local(p_name, p_type); +} + +uint32_t GDScriptByteCodeGenerator::add_local(const StringName &p_name, const GDScriptDataType &p_type) { + int stack_pos = increase_stack(); + add_stack_identifier(p_name, stack_pos); + return stack_pos; +} + +uint32_t GDScriptByteCodeGenerator::add_local_constant(const StringName &p_name, const Variant &p_constant) { + int index = add_or_get_constant(p_constant); + local_constants[p_name] = index; + return index; +} + +uint32_t GDScriptByteCodeGenerator::add_or_get_constant(const Variant &p_constant) { + if (constant_map.has(p_constant)) { + return constant_map[p_constant]; + } + int index = constant_map.size(); + constant_map[p_constant] = index; + return index; +} + +uint32_t GDScriptByteCodeGenerator::add_or_get_name(const StringName &p_name) { + return get_name_map_pos(p_name); +} + +uint32_t GDScriptByteCodeGenerator::add_temporary() { + current_temporaries++; + int idx = increase_stack(); +#ifdef DEBUG_ENABLED + temp_stack.push_back(idx); +#endif + return idx; +} + +void GDScriptByteCodeGenerator::pop_temporary() { + ERR_FAIL_COND(current_temporaries == 0); + current_stack_size--; +#ifdef DEBUG_ENABLED + if (temp_stack.back()->get() != current_stack_size) { + ERR_PRINT("Mismatched popping of temporary value"); + } + temp_stack.pop_back(); +#endif + current_temporaries--; +} + +void GDScriptByteCodeGenerator::start_parameters() { + if (function->_default_arg_count > 0) { + append(GDScriptFunction::OPCODE_JUMP_TO_DEF_ARGUMENT); + function->default_arguments.push_back(opcodes.size()); + } +} + +void GDScriptByteCodeGenerator::end_parameters() { + function->default_arguments.invert(); +} + +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) { + function = memnew(GDScriptFunction); + debug_stack = EngineDebugger::is_active(); + + function->name = p_function_name; + function->_script = p_script; + function->source = p_script->get_path(); + +#ifdef DEBUG_ENABLED + function->func_cname = (String(function->source) + " - " + String(p_function_name)).utf8(); + function->_func_cname = function->func_cname.get_data(); +#endif + + function->_static = p_static; + function->return_type = p_return_type; + function->rpc_mode = p_rpc_mode; + function->_argument_count = 0; +} + +GDScriptFunction *GDScriptByteCodeGenerator::write_end() { +#ifdef DEBUG_ENABLED + if (current_temporaries != 0) { + ERR_PRINT("Non-zero temporary variables at end of function: " + itos(current_temporaries)); + } +#endif + append(GDScriptFunction::OPCODE_END, 0); + + if (constant_map.size()) { + function->_constant_count = constant_map.size(); + function->constants.resize(constant_map.size()); + function->_constants_ptr = function->constants.ptrw(); + const Variant *K = nullptr; + while ((K = constant_map.next(K))) { + int idx = constant_map[*K]; + function->constants.write[idx] = *K; + } + } else { + function->_constants_ptr = nullptr; + function->_constant_count = 0; + } + + if (name_map.size()) { + function->global_names.resize(name_map.size()); + function->_global_names_ptr = &function->global_names[0]; + for (Map<StringName, int>::Element *E = name_map.front(); E; E = E->next()) { + function->global_names.write[E->get()] = E->key(); + } + function->_global_names_count = function->global_names.size(); + + } else { + function->_global_names_ptr = nullptr; + function->_global_names_count = 0; + } + + if (opcodes.size()) { + function->code = opcodes; + function->_code_ptr = &function->code[0]; + function->_code_size = opcodes.size(); + + } else { + function->_code_ptr = nullptr; + function->_code_size = 0; + } + + if (function->default_arguments.size()) { + function->_default_arg_count = function->default_arguments.size() - 1; + function->_default_arg_ptr = &function->default_arguments[0]; + } else { + function->_default_arg_count = 0; + function->_default_arg_ptr = nullptr; + } + + if (operator_func_map.size()) { + function->operator_funcs.resize(operator_func_map.size()); + function->_operator_funcs_count = function->operator_funcs.size(); + function->_operator_funcs_ptr = function->operator_funcs.ptr(); + for (const Map<Variant::ValidatedOperatorEvaluator, int>::Element *E = operator_func_map.front(); E; E = E->next()) { + function->operator_funcs.write[E->get()] = E->key(); + } + } else { + function->_operator_funcs_count = 0; + function->_operator_funcs_ptr = nullptr; + } + + if (setters_map.size()) { + function->setters.resize(setters_map.size()); + function->_setters_count = function->setters.size(); + function->_setters_ptr = function->setters.ptr(); + for (const Map<Variant::ValidatedSetter, int>::Element *E = setters_map.front(); E; E = E->next()) { + function->setters.write[E->get()] = E->key(); + } + } else { + function->_setters_count = 0; + function->_setters_ptr = nullptr; + } + + if (getters_map.size()) { + function->getters.resize(getters_map.size()); + function->_getters_count = function->getters.size(); + function->_getters_ptr = function->getters.ptr(); + for (const Map<Variant::ValidatedGetter, int>::Element *E = getters_map.front(); E; E = E->next()) { + function->getters.write[E->get()] = E->key(); + } + } else { + function->_getters_count = 0; + function->_getters_ptr = nullptr; + } + + if (keyed_setters_map.size()) { + function->keyed_setters.resize(keyed_setters_map.size()); + function->_keyed_setters_count = function->keyed_setters.size(); + function->_keyed_setters_ptr = function->keyed_setters.ptr(); + for (const Map<Variant::ValidatedKeyedSetter, int>::Element *E = keyed_setters_map.front(); E; E = E->next()) { + function->keyed_setters.write[E->get()] = E->key(); + } + } else { + function->_keyed_setters_count = 0; + function->_keyed_setters_ptr = nullptr; + } + + if (keyed_getters_map.size()) { + function->keyed_getters.resize(keyed_getters_map.size()); + function->_keyed_getters_count = function->keyed_getters.size(); + function->_keyed_getters_ptr = function->keyed_getters.ptr(); + for (const Map<Variant::ValidatedKeyedGetter, int>::Element *E = keyed_getters_map.front(); E; E = E->next()) { + function->keyed_getters.write[E->get()] = E->key(); + } + } else { + function->_keyed_getters_count = 0; + function->_keyed_getters_ptr = nullptr; + } + + if (indexed_setters_map.size()) { + function->indexed_setters.resize(indexed_setters_map.size()); + function->_indexed_setters_count = function->indexed_setters.size(); + function->_indexed_setters_ptr = function->indexed_setters.ptr(); + for (const Map<Variant::ValidatedIndexedSetter, int>::Element *E = indexed_setters_map.front(); E; E = E->next()) { + function->indexed_setters.write[E->get()] = E->key(); + } + } else { + function->_indexed_setters_count = 0; + function->_indexed_setters_ptr = nullptr; + } + + if (indexed_getters_map.size()) { + function->indexed_getters.resize(indexed_getters_map.size()); + function->_indexed_getters_count = function->indexed_getters.size(); + function->_indexed_getters_ptr = function->indexed_getters.ptr(); + for (const Map<Variant::ValidatedIndexedGetter, int>::Element *E = indexed_getters_map.front(); E; E = E->next()) { + function->indexed_getters.write[E->get()] = E->key(); + } + } else { + function->_indexed_getters_count = 0; + function->_indexed_getters_ptr = nullptr; + } + + if (builtin_method_map.size()) { + function->builtin_methods.resize(builtin_method_map.size()); + function->_builtin_methods_ptr = function->builtin_methods.ptr(); + function->_builtin_methods_count = builtin_method_map.size(); + for (const Map<Variant::ValidatedBuiltInMethod, int>::Element *E = builtin_method_map.front(); E; E = E->next()) { + function->builtin_methods.write[E->get()] = E->key(); + } + } else { + function->_builtin_methods_ptr = nullptr; + function->_builtin_methods_count = 0; + } + + if (constructors_map.size()) { + function->constructors.resize(constructors_map.size()); + function->_constructors_ptr = function->constructors.ptr(); + function->_constructors_count = constructors_map.size(); + for (const Map<Variant::ValidatedConstructor, int>::Element *E = constructors_map.front(); E; E = E->next()) { + function->constructors.write[E->get()] = E->key(); + } + } else { + function->_constructors_ptr = nullptr; + function->_constructors_count = 0; + } + + if (utilities_map.size()) { + function->utilities.resize(utilities_map.size()); + function->_utilities_ptr = function->utilities.ptr(); + function->_utilities_count = utilities_map.size(); + for (const Map<Variant::ValidatedUtilityFunction, int>::Element *E = utilities_map.front(); E; E = E->next()) { + function->utilities.write[E->get()] = E->key(); + } + } else { + function->_utilities_ptr = nullptr; + function->_utilities_count = 0; + } + + if (gds_utilities_map.size()) { + function->gds_utilities.resize(gds_utilities_map.size()); + function->_gds_utilities_ptr = function->gds_utilities.ptr(); + function->_gds_utilities_count = gds_utilities_map.size(); + for (const Map<GDScriptUtilityFunctions::FunctionPtr, int>::Element *E = gds_utilities_map.front(); E; E = E->next()) { + function->gds_utilities.write[E->get()] = E->key(); + } + } else { + function->_gds_utilities_ptr = nullptr; + function->_gds_utilities_count = 0; + } + + if (method_bind_map.size()) { + function->methods.resize(method_bind_map.size()); + function->_methods_ptr = function->methods.ptrw(); + function->_methods_count = method_bind_map.size(); + for (const Map<MethodBind *, int>::Element *E = method_bind_map.front(); E; E = E->next()) { + function->methods.write[E->get()] = E->key(); + } + } else { + function->_methods_ptr = nullptr; + function->_methods_count = 0; + } + + if (debug_stack) { + function->stack_debug = stack_debug; + } + function->_stack_size = stack_max; + function->_instruction_args_size = instr_args_max; + function->_ptrcall_args_size = ptrcall_max; + + ended = true; + return function; +} + +#ifdef DEBUG_ENABLED +void GDScriptByteCodeGenerator::set_signature(const String &p_signature) { + function->profile.signature = p_signature; +} +#endif + +void GDScriptByteCodeGenerator::set_initial_line(int p_line) { + function->_initial_line = p_line; +} + +#define HAS_BUILTIN_TYPE(m_var) \ + (m_var.type.has_type && m_var.type.kind == GDScriptDataType::BUILTIN) + +#define IS_BUILTIN_TYPE(m_var, m_type) \ + (m_var.type.has_type && m_var.type.kind == GDScriptDataType::BUILTIN && m_var.type.builtin_type == m_type) + +void GDScriptByteCodeGenerator::write_unary_operator(const Address &p_target, Variant::Operator p_operator, const Address &p_left_operand) { + if (HAS_BUILTIN_TYPE(p_left_operand)) { + // Gather specific operator. + Variant::ValidatedOperatorEvaluator op_func = Variant::get_validated_operator_evaluator(p_operator, p_left_operand.type.builtin_type, Variant::NIL); + + append(GDScriptFunction::OPCODE_OPERATOR_VALIDATED, 3); + append(p_left_operand); + append(Address()); + append(p_target); + append(op_func); + return; + } + + // No specific types, perform variant evaluation. + append(GDScriptFunction::OPCODE_OPERATOR, 3); + append(p_left_operand); + append(Address()); + append(p_target); + append(p_operator); +} + +void GDScriptByteCodeGenerator::write_binary_operator(const Address &p_target, Variant::Operator p_operator, const Address &p_left_operand, const Address &p_right_operand) { + if (HAS_BUILTIN_TYPE(p_left_operand) && HAS_BUILTIN_TYPE(p_right_operand)) { + // Gather specific operator. + Variant::ValidatedOperatorEvaluator op_func = Variant::get_validated_operator_evaluator(p_operator, p_left_operand.type.builtin_type, p_right_operand.type.builtin_type); + + append(GDScriptFunction::OPCODE_OPERATOR_VALIDATED, 3); + append(p_left_operand); + append(p_right_operand); + append(p_target); + append(op_func); + return; + } + + // No specific types, perform variant evaluation. + append(GDScriptFunction::OPCODE_OPERATOR, 3); + append(p_left_operand); + append(p_right_operand); + append(p_target); + append(p_operator); +} + +void GDScriptByteCodeGenerator::write_type_test(const Address &p_target, const Address &p_source, const Address &p_type) { + append(GDScriptFunction::OPCODE_EXTENDS_TEST, 3); + append(p_source); + append(p_type); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_type_test_builtin(const Address &p_target, const Address &p_source, Variant::Type p_type) { + append(GDScriptFunction::OPCODE_IS_BUILTIN, 3); + append(p_source); + append(p_target); + append(p_type); +} + +void GDScriptByteCodeGenerator::write_and_left_operand(const Address &p_left_operand) { + append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1); + append(p_left_operand); + logic_op_jump_pos1.push_back(opcodes.size()); + append(0); // Jump target, will be patched. +} + +void GDScriptByteCodeGenerator::write_and_right_operand(const Address &p_right_operand) { + append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1); + append(p_right_operand); + logic_op_jump_pos2.push_back(opcodes.size()); + append(0); // Jump target, will be patched. +} + +void GDScriptByteCodeGenerator::write_end_and(const Address &p_target) { + // If here means both operands are true. + append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1); + append(p_target); + // Jump away from the fail condition. + append(GDScriptFunction::OPCODE_JUMP, 0); + append(opcodes.size() + 3); + // Here it means one of operands is false. + patch_jump(logic_op_jump_pos1.back()->get()); + patch_jump(logic_op_jump_pos2.back()->get()); + logic_op_jump_pos1.pop_back(); + logic_op_jump_pos2.pop_back(); + append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_or_left_operand(const Address &p_left_operand) { + append(GDScriptFunction::OPCODE_JUMP_IF, 1); + append(p_left_operand); + logic_op_jump_pos1.push_back(opcodes.size()); + append(0); // Jump target, will be patched. +} + +void GDScriptByteCodeGenerator::write_or_right_operand(const Address &p_right_operand) { + append(GDScriptFunction::OPCODE_JUMP_IF, 1); + append(p_right_operand); + logic_op_jump_pos2.push_back(opcodes.size()); + append(0); // Jump target, will be patched. +} + +void GDScriptByteCodeGenerator::write_end_or(const Address &p_target) { + // If here means both operands are false. + append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1); + append(p_target); + // Jump away from the success condition. + append(GDScriptFunction::OPCODE_JUMP, 0); + append(opcodes.size() + 3); + // Here it means one of operands is true. + patch_jump(logic_op_jump_pos1.back()->get()); + patch_jump(logic_op_jump_pos2.back()->get()); + logic_op_jump_pos1.pop_back(); + logic_op_jump_pos2.pop_back(); + append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_start_ternary(const Address &p_target) { + ternary_result.push_back(p_target); +} + +void GDScriptByteCodeGenerator::write_ternary_condition(const Address &p_condition) { + append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1); + append(p_condition); + ternary_jump_fail_pos.push_back(opcodes.size()); + append(0); // Jump target, will be patched. +} + +void GDScriptByteCodeGenerator::write_ternary_true_expr(const Address &p_expr) { + append(GDScriptFunction::OPCODE_ASSIGN, 2); + append(ternary_result.back()->get()); + append(p_expr); + // Jump away from the false path. + append(GDScriptFunction::OPCODE_JUMP, 0); + ternary_jump_skip_pos.push_back(opcodes.size()); + append(0); + // Fail must jump here. + patch_jump(ternary_jump_fail_pos.back()->get()); + ternary_jump_fail_pos.pop_back(); +} + +void GDScriptByteCodeGenerator::write_ternary_false_expr(const Address &p_expr) { + append(GDScriptFunction::OPCODE_ASSIGN, 2); + append(ternary_result.back()->get()); + append(p_expr); +} + +void GDScriptByteCodeGenerator::write_end_ternary() { + patch_jump(ternary_jump_skip_pos.back()->get()); + ternary_jump_skip_pos.pop_back(); +} + +void GDScriptByteCodeGenerator::write_set(const Address &p_target, const Address &p_index, const Address &p_source) { + if (HAS_BUILTIN_TYPE(p_target)) { + if (IS_BUILTIN_TYPE(p_index, Variant::INT) && Variant::get_member_validated_indexed_setter(p_target.type.builtin_type)) { + // Use indexed setter instead. + Variant::ValidatedIndexedSetter setter = Variant::get_member_validated_indexed_setter(p_target.type.builtin_type); + append(GDScriptFunction::OPCODE_SET_INDEXED_VALIDATED, 3); + append(p_target); + append(p_index); + append(p_source); + append(setter); + return; + } else if (Variant::get_member_validated_keyed_setter(p_target.type.builtin_type)) { + Variant::ValidatedKeyedSetter setter = Variant::get_member_validated_keyed_setter(p_target.type.builtin_type); + append(GDScriptFunction::OPCODE_SET_KEYED_VALIDATED, 3); + append(p_target); + append(p_index); + append(p_source); + append(setter); + return; + } + } + + append(GDScriptFunction::OPCODE_SET_KEYED, 3); + append(p_target); + append(p_index); + append(p_source); +} + +void GDScriptByteCodeGenerator::write_get(const Address &p_target, const Address &p_index, const Address &p_source) { + if (HAS_BUILTIN_TYPE(p_source)) { + if (IS_BUILTIN_TYPE(p_index, Variant::INT) && Variant::get_member_validated_indexed_getter(p_source.type.builtin_type)) { + // Use indexed getter instead. + Variant::ValidatedIndexedGetter getter = Variant::get_member_validated_indexed_getter(p_source.type.builtin_type); + append(GDScriptFunction::OPCODE_GET_INDEXED_VALIDATED, 3); + append(p_source); + append(p_index); + append(p_target); + append(getter); + return; + } else if (Variant::get_member_validated_keyed_getter(p_source.type.builtin_type)) { + Variant::ValidatedKeyedGetter getter = Variant::get_member_validated_keyed_getter(p_source.type.builtin_type); + append(GDScriptFunction::OPCODE_GET_KEYED_VALIDATED, 3); + append(p_source); + append(p_index); + append(p_target); + append(getter); + return; + } + } + append(GDScriptFunction::OPCODE_GET_KEYED, 3); + append(p_source); + append(p_index); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_set_named(const Address &p_target, const StringName &p_name, const Address &p_source) { + if (HAS_BUILTIN_TYPE(p_target) && Variant::get_member_validated_setter(p_target.type.builtin_type, p_name)) { + Variant::ValidatedSetter setter = Variant::get_member_validated_setter(p_target.type.builtin_type, p_name); + append(GDScriptFunction::OPCODE_SET_NAMED_VALIDATED, 2); + append(p_target); + append(p_source); + append(setter); + return; + } + append(GDScriptFunction::OPCODE_SET_NAMED, 2); + append(p_target); + append(p_source); + append(p_name); +} + +void GDScriptByteCodeGenerator::write_get_named(const Address &p_target, const StringName &p_name, const Address &p_source) { + if (HAS_BUILTIN_TYPE(p_source) && Variant::get_member_validated_getter(p_source.type.builtin_type, p_name)) { + Variant::ValidatedGetter getter = Variant::get_member_validated_getter(p_source.type.builtin_type, p_name); + append(GDScriptFunction::OPCODE_GET_NAMED_VALIDATED, 2); + append(p_source); + append(p_target); + append(getter); + return; + } + append(GDScriptFunction::OPCODE_GET_NAMED, 2); + append(p_source); + append(p_target); + append(p_name); +} + +void GDScriptByteCodeGenerator::write_set_member(const Address &p_value, const StringName &p_name) { + append(GDScriptFunction::OPCODE_SET_MEMBER, 1); + append(p_value); + append(p_name); +} + +void GDScriptByteCodeGenerator::write_get_member(const Address &p_target, const StringName &p_name) { + append(GDScriptFunction::OPCODE_GET_MEMBER, 1); + append(p_target); + append(p_name); +} + +void GDScriptByteCodeGenerator::write_assign(const Address &p_target, const Address &p_source) { + if (p_target.type.has_type && !p_source.type.has_type) { + // Typed assignment. + switch (p_target.type.kind) { + case GDScriptDataType::BUILTIN: { + append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2); + append(p_target); + append(p_source); + append(p_target.type.builtin_type); + } break; + case GDScriptDataType::NATIVE: { + int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_target.type.native_type]; + class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS); + append(GDScriptFunction::OPCODE_ASSIGN_TYPED_NATIVE, 3); + append(p_target); + append(p_source); + append(class_idx); + } break; + case GDScriptDataType::SCRIPT: + case GDScriptDataType::GDSCRIPT: { + Variant script = p_target.type.script_type; + int idx = get_constant_pos(script); + idx |= (GDScriptFunction::ADDR_TYPE_LOCAL_CONSTANT << GDScriptFunction::ADDR_BITS); + + append(GDScriptFunction::OPCODE_ASSIGN_TYPED_SCRIPT, 3); + append(p_target); + append(p_source); + append(idx); + } break; + default: { + ERR_PRINT("Compiler bug: unresolved assign."); + + // Shouldn't get here, but fail-safe to a regular assignment + append(GDScriptFunction::OPCODE_ASSIGN, 2); + append(p_target); + append(p_source); + } + } + } else { + if (p_target.type.kind == GDScriptDataType::BUILTIN && p_source.type.kind == GDScriptDataType::BUILTIN && p_target.type.builtin_type != p_source.type.builtin_type) { + // Need conversion.. + append(GDScriptFunction::OPCODE_ASSIGN_TYPED_BUILTIN, 2); + append(p_target); + append(p_source); + append(p_target.type.builtin_type); + } else { + // Either untyped assignment or already type-checked by the parser + append(GDScriptFunction::OPCODE_ASSIGN, 2); + append(p_target); + append(p_source); + } + } +} + +void GDScriptByteCodeGenerator::write_assign_true(const Address &p_target) { + append(GDScriptFunction::OPCODE_ASSIGN_TRUE, 1); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_assign_false(const Address &p_target) { + append(GDScriptFunction::OPCODE_ASSIGN_FALSE, 1); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_assign_default_parameter(const Address &p_dst, const Address &p_src) { + write_assign(p_dst, p_src); + function->default_arguments.push_back(opcodes.size()); +} + +void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Address &p_source, const GDScriptDataType &p_type) { + int index = 0; + + switch (p_type.kind) { + case GDScriptDataType::BUILTIN: { + append(GDScriptFunction::OPCODE_CAST_TO_BUILTIN, 2); + index = p_type.builtin_type; + } break; + case GDScriptDataType::NATIVE: { + int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_type.native_type]; + class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS); + append(GDScriptFunction::OPCODE_CAST_TO_NATIVE, 3); + index = class_idx; + } break; + case GDScriptDataType::SCRIPT: + case GDScriptDataType::GDSCRIPT: { + Variant script = p_type.script_type; + int idx = get_constant_pos(script); + idx |= (GDScriptFunction::ADDR_TYPE_LOCAL_CONSTANT << GDScriptFunction::ADDR_BITS); + + append(GDScriptFunction::OPCODE_CAST_TO_SCRIPT, 3); + index = idx; + } break; + default: { + return; + } + } + + append(p_source); + append(p_target); + append(index); +} + +void GDScriptByteCodeGenerator::write_call(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, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +void GDScriptByteCodeGenerator::write_super_call(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CALL_SELF_BASE, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +void GDScriptByteCodeGenerator::write_call_async(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +void GDScriptByteCodeGenerator::write_call_gdscript_utility(const Address &p_target, GDScriptUtilityFunctions::FunctionPtr p_function, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CALL_GDSCRIPT_UTILITY, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(p_function); +} + +void GDScriptByteCodeGenerator::write_call_utility(const Address &p_target, const StringName &p_function, const Vector<Address> &p_arguments) { + bool is_validated = true; + if (Variant::is_utility_function_vararg(p_function)) { + is_validated = true; // Vararg works fine with any argument, since they can be any type. + } else if (p_arguments.size() == Variant::get_utility_function_argument_count(p_function)) { + bool all_types_exact = true; + for (int i = 0; i < p_arguments.size(); i++) { + if (!IS_BUILTIN_TYPE(p_arguments[i], Variant::get_utility_function_argument_type(p_function, i))) { + all_types_exact = false; + break; + } + } + + is_validated = all_types_exact; + } + + if (is_validated) { + append(GDScriptFunction::OPCODE_CALL_UTILITY_VALIDATED, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(Variant::get_validated_utility_function(p_function)); + } else { + append(GDScriptFunction::OPCODE_CALL_UTILITY, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(p_function); + } +} + +void GDScriptByteCodeGenerator::write_call_builtin_type(const Address &p_target, const Address &p_base, Variant::Type p_type, const StringName &p_method, const Vector<Address> &p_arguments) { + bool is_validated = false; + + // Check if all types are correct. + if (Variant::is_builtin_method_vararg(p_type, p_method)) { + is_validated = true; // Vararg works fine with any argument, since they can be any type. + } else if (p_arguments.size() == Variant::get_builtin_method_argument_count(p_type, p_method)) { + bool all_types_exact = true; + for (int i = 0; i < p_arguments.size(); i++) { + if (!IS_BUILTIN_TYPE(p_arguments[i], Variant::get_builtin_method_argument_type(p_type, p_method, i))) { + all_types_exact = false; + break; + } + } + + is_validated = all_types_exact; + } + + if (!is_validated) { + // Perform regular call. + write_call(p_target, p_base, p_method, p_arguments); + return; + } + + append(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size()); + + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(Variant::get_validated_builtin_method(p_type, p_method)); +} + +void GDScriptByteCodeGenerator::write_call_method_bind(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) { + append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(p_method); +} + +void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) { +#define CASE_TYPE(m_type) \ + case Variant::m_type: \ + append(GDScriptFunction::OPCODE_CALL_PTRCALL_##m_type, 2 + p_arguments.size()); \ + break + + bool is_ptrcall = true; + + if (p_method->has_return()) { + MethodInfo info; + ClassDB::get_method_info(p_method->get_instance_class(), p_method->get_name(), &info); + switch (info.return_val.type) { + CASE_TYPE(BOOL); + CASE_TYPE(INT); + CASE_TYPE(FLOAT); + CASE_TYPE(STRING); + CASE_TYPE(VECTOR2); + CASE_TYPE(VECTOR2I); + CASE_TYPE(RECT2); + CASE_TYPE(RECT2I); + CASE_TYPE(VECTOR3); + CASE_TYPE(VECTOR3I); + CASE_TYPE(TRANSFORM2D); + CASE_TYPE(PLANE); + CASE_TYPE(AABB); + CASE_TYPE(BASIS); + CASE_TYPE(TRANSFORM); + CASE_TYPE(COLOR); + CASE_TYPE(STRING_NAME); + CASE_TYPE(NODE_PATH); + CASE_TYPE(RID); + CASE_TYPE(QUAT); + CASE_TYPE(OBJECT); + CASE_TYPE(CALLABLE); + CASE_TYPE(SIGNAL); + CASE_TYPE(DICTIONARY); + CASE_TYPE(ARRAY); + CASE_TYPE(PACKED_BYTE_ARRAY); + CASE_TYPE(PACKED_INT32_ARRAY); + CASE_TYPE(PACKED_INT64_ARRAY); + CASE_TYPE(PACKED_FLOAT32_ARRAY); + CASE_TYPE(PACKED_FLOAT64_ARRAY); + CASE_TYPE(PACKED_STRING_ARRAY); + CASE_TYPE(PACKED_VECTOR2_ARRAY); + CASE_TYPE(PACKED_VECTOR3_ARRAY); + CASE_TYPE(PACKED_COLOR_ARRAY); + default: + append(p_target.mode == Address::NIL ? GDScriptFunction::OPCODE_CALL_METHOD_BIND : GDScriptFunction::OPCODE_CALL_METHOD_BIND_RET, 2 + p_arguments.size()); + is_ptrcall = false; + break; + } + } else { + append(GDScriptFunction::OPCODE_CALL_PTRCALL_NO_RETURN, 2 + p_arguments.size()); + } + + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(p_method); + if (is_ptrcall) { + alloc_ptrcall(p_arguments.size()); + } + +#undef CASE_TYPE +} + +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, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(GDScriptFunction::ADDR_TYPE_SELF << GDScriptFunction::ADDR_BITS); + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +void GDScriptByteCodeGenerator::write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CALL_ASYNC, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(GDScriptFunction::ADDR_TYPE_SELF << GDScriptFunction::ADDR_BITS); + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +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, 2 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_base); + append(p_target); + append(p_arguments.size()); + append(p_function_name); +} + +void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant::Type p_type, const Vector<Address> &p_arguments) { + // Try to find an appropriate constructor. + bool all_have_type = true; + Vector<Variant::Type> arg_types; + for (int i = 0; i < p_arguments.size(); i++) { + if (!HAS_BUILTIN_TYPE(p_arguments[i])) { + all_have_type = false; + break; + } + arg_types.push_back(p_arguments[i].type.builtin_type); + } + if (all_have_type) { + int valid_constructor = -1; + for (int i = 0; i < Variant::get_constructor_count(p_type); i++) { + if (Variant::get_constructor_argument_count(p_type, i) != p_arguments.size()) { + continue; + } + int types_correct = true; + for (int j = 0; j < arg_types.size(); j++) { + if (arg_types[j] != Variant::get_constructor_argument_type(p_type, i, j)) { + types_correct = false; + break; + } + } + if (types_correct) { + valid_constructor = i; + break; + } + } + if (valid_constructor >= 0) { + append(GDScriptFunction::OPCODE_CONSTRUCT_VALIDATED, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(Variant::get_validated_constructor(p_type, valid_constructor)); + return; + } + } + + append(GDScriptFunction::OPCODE_CONSTRUCT, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); + append(p_type); +} + +void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CONSTRUCT_ARRAY, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size()); +} + +void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_target, const Vector<Address> &p_arguments) { + append(GDScriptFunction::OPCODE_CONSTRUCT_DICTIONARY, 1 + p_arguments.size()); + for (int i = 0; i < p_arguments.size(); i++) { + append(p_arguments[i]); + } + append(p_target); + append(p_arguments.size() / 2); // This is number of key-value pairs, so only half of actual arguments. +} + +void GDScriptByteCodeGenerator::write_await(const Address &p_target, const Address &p_operand) { + append(GDScriptFunction::OPCODE_AWAIT, 1); + append(p_operand); + append(GDScriptFunction::OPCODE_AWAIT_RESUME, 1); + append(p_target); +} + +void GDScriptByteCodeGenerator::write_if(const Address &p_condition) { + append(GDScriptFunction::OPCODE_JUMP_IF_NOT, 1); + 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, 0); // 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::start_for(const GDScriptDataType &p_iterator_type, const GDScriptDataType &p_list_type) { + Address counter(Address::LOCAL_VARIABLE, add_local("@counter_pos", p_iterator_type), p_iterator_type); + Address container(Address::LOCAL_VARIABLE, add_local("@container_pos", p_list_type), p_list_type); + + // Store state. + for_counter_variables.push_back(counter); + for_container_variables.push_back(container); +} + +void GDScriptByteCodeGenerator::write_for_assignment(const Address &p_variable, const Address &p_list) { + const Address &container = for_container_variables.back()->get(); + + // Assign container. + append(GDScriptFunction::OPCODE_ASSIGN, 2); + append(container); + append(p_list); + + for_iterator_variables.push_back(p_variable); +} + +void GDScriptByteCodeGenerator::write_for() { + const Address &iterator = for_iterator_variables.back()->get(); + const Address &counter = for_counter_variables.back()->get(); + const Address &container = for_container_variables.back()->get(); + + current_breaks_to_patch.push_back(List<int>()); + + GDScriptFunction::Opcode begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN; + GDScriptFunction::Opcode iterate_opcode = GDScriptFunction::OPCODE_ITERATE; + + if (container.type.has_type) { + if (container.type.kind == GDScriptDataType::BUILTIN) { + switch (container.type.builtin_type) { + case Variant::INT: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_INT; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_INT; + break; + case Variant::FLOAT: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_FLOAT; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_FLOAT; + break; + case Variant::VECTOR2: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_VECTOR2; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_VECTOR2; + break; + case Variant::VECTOR2I: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_VECTOR2I; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_VECTOR2I; + break; + case Variant::VECTOR3: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_VECTOR3; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_VECTOR3; + break; + case Variant::VECTOR3I: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_VECTOR3I; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_VECTOR3I; + break; + case Variant::STRING: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_STRING; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_STRING; + break; + case Variant::DICTIONARY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_DICTIONARY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_DICTIONARY; + break; + case Variant::ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_ARRAY; + break; + case Variant::PACKED_BYTE_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_BYTE_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_BYTE_ARRAY; + break; + case Variant::PACKED_INT32_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_INT32_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_INT32_ARRAY; + break; + case Variant::PACKED_INT64_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_INT64_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_INT64_ARRAY; + break; + case Variant::PACKED_FLOAT32_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_FLOAT32_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_FLOAT32_ARRAY; + break; + case Variant::PACKED_FLOAT64_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_FLOAT64_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_FLOAT64_ARRAY; + break; + case Variant::PACKED_STRING_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_STRING_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_STRING_ARRAY; + break; + case Variant::PACKED_VECTOR2_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_VECTOR2_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_VECTOR2_ARRAY; + break; + case Variant::PACKED_VECTOR3_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_VECTOR3_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_VECTOR3_ARRAY; + break; + case Variant::PACKED_COLOR_ARRAY: + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_PACKED_COLOR_ARRAY; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_PACKED_COLOR_ARRAY; + break; + default: + break; + } + } else { + begin_opcode = GDScriptFunction::OPCODE_ITERATE_BEGIN_OBJECT; + iterate_opcode = GDScriptFunction::OPCODE_ITERATE_OBJECT; + } + } + + // Begin loop. + append(begin_opcode, 3); + append(counter); + append(container); + append(iterator); + for_jmp_addrs.push_back(opcodes.size()); + append(0); // End of loop address, will be patched. + append(GDScriptFunction::OPCODE_JUMP, 0); + append(opcodes.size() + 6); // Skip over 'continue' code. + + // Next iteration. + int continue_addr = opcodes.size(); + continue_addrs.push_back(continue_addr); + append(iterate_opcode, 3); + append(counter); + append(container); + append(iterator); + for_jmp_addrs.push_back(opcodes.size()); + append(0); // Jump destination, will be patched. +} + +void GDScriptByteCodeGenerator::write_endfor() { + // Jump back to loop check. + append(GDScriptFunction::OPCODE_JUMP, 0); + 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(); + + // Pop state. + for_iterator_variables.pop_back(); + for_counter_variables.pop_back(); + for_container_variables.pop_back(); +} + +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, 1); + 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, 0); + 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, 0); + current_breaks_to_patch.back()->get().push_back(opcodes.size()); + append(0); +} + +void GDScriptByteCodeGenerator::write_continue() { + append(GDScriptFunction::OPCODE_JUMP, 0); + append(continue_addrs.back()->get()); +} + +void GDScriptByteCodeGenerator::write_continue_match() { + append(GDScriptFunction::OPCODE_JUMP, 0); + match_continues_to_patch.back()->get().push_back(opcodes.size()); + append(0); +} + +void GDScriptByteCodeGenerator::write_breakpoint() { + append(GDScriptFunction::OPCODE_BREAKPOINT, 0); +} + +void GDScriptByteCodeGenerator::write_newline(int p_line) { + append(GDScriptFunction::OPCODE_LINE, 0); + append(p_line); + current_line = p_line; +} + +void GDScriptByteCodeGenerator::write_return(const Address &p_return_value) { + append(GDScriptFunction::OPCODE_RETURN, 1); + append(p_return_value); +} + +void GDScriptByteCodeGenerator::write_assert(const Address &p_test, const Address &p_message) { + append(GDScriptFunction::OPCODE_ASSERT, 2); + 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); + } +} |