/*************************************************************************/ /* gdscript_function.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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_function.h" #include "core/os/os.h" #include "gdscript.h" #include "gdscript_functions.h" Variant *GDScriptFunction::_get_variant(int p_address, GDScriptInstance *p_instance, GDScript *p_script, Variant &self, Variant &static_ref, Variant *p_stack, String &r_error) const { int address = p_address & ADDR_MASK; //sequential table (jump table generated by compiler) switch ((p_address & ADDR_TYPE_MASK) >> ADDR_BITS) { case ADDR_TYPE_SELF: { #ifdef DEBUG_ENABLED if (unlikely(!p_instance)) { r_error = "Cannot access self without instance."; return nullptr; } #endif return &self; } break; case ADDR_TYPE_CLASS: { return &static_ref; } break; case ADDR_TYPE_MEMBER: { #ifdef DEBUG_ENABLED if (unlikely(!p_instance)) { r_error = "Cannot access member without instance."; return nullptr; } #endif //member indexing is O(1) return &p_instance->members.write[address]; } break; case ADDR_TYPE_CLASS_CONSTANT: { //todo change to index! GDScript *s = p_script; #ifdef DEBUG_ENABLED ERR_FAIL_INDEX_V(address, _global_names_count, nullptr); #endif const StringName *sn = &_global_names_ptr[address]; while (s) { GDScript *o = s; while (o) { Map<StringName, Variant>::Element *E = o->constants.find(*sn); if (E) { return &E->get(); } o = o->_owner; } s = s->_base; } ERR_FAIL_V_MSG(nullptr, "GDScriptCompiler bug."); } break; case ADDR_TYPE_LOCAL_CONSTANT: { #ifdef DEBUG_ENABLED ERR_FAIL_INDEX_V(address, _constant_count, nullptr); #endif return &_constants_ptr[address]; } break; case ADDR_TYPE_STACK: case ADDR_TYPE_STACK_VARIABLE: { #ifdef DEBUG_ENABLED ERR_FAIL_INDEX_V(address, _stack_size, nullptr); #endif return &p_stack[address]; } break; case ADDR_TYPE_GLOBAL: { #ifdef DEBUG_ENABLED ERR_FAIL_INDEX_V(address, GDScriptLanguage::get_singleton()->get_global_array_size(), nullptr); #endif return &GDScriptLanguage::get_singleton()->get_global_array()[address]; } break; #ifdef TOOLS_ENABLED case ADDR_TYPE_NAMED_GLOBAL: { #ifdef DEBUG_ENABLED ERR_FAIL_INDEX_V(address, _named_globals_count, nullptr); #endif StringName id = _named_globals_ptr[address]; if (GDScriptLanguage::get_singleton()->get_named_globals_map().has(id)) { return (Variant *)&GDScriptLanguage::get_singleton()->get_named_globals_map()[id]; } else { r_error = "Autoload singleton '" + String(id) + "' has been removed."; return nullptr; } } break; #endif case ADDR_TYPE_NIL: { return &nil; } break; } ERR_FAIL_V_MSG(nullptr, "Bad code! (unknown addressing mode)."); return nullptr; } #ifdef DEBUG_ENABLED static String _get_var_type(const Variant *p_var) { String basestr; if (p_var->get_type() == Variant::OBJECT) { Object *bobj = *p_var; if (!bobj) { if (p_var->is_invalid_object()) { basestr = "previously freed instance"; } else { basestr = "null instance"; } } else { if (bobj->get_script_instance()) { basestr = bobj->get_class() + " (" + bobj->get_script_instance()->get_script()->get_path().get_file() + ")"; } else { basestr = bobj->get_class(); } } } else { basestr = Variant::get_type_name(p_var->get_type()); } return basestr; } #endif // DEBUG_ENABLED String GDScriptFunction::_get_call_error(const Variant::CallError &p_err, const String &p_where, const Variant **argptrs) const { String err_text; if (p_err.error == Variant::CallError::CALL_ERROR_INVALID_ARGUMENT) { int errorarg = p_err.argument; // Handle the Object to Object case separately as we don't have further class details. #ifdef DEBUG_ENABLED if (p_err.expected == Variant::OBJECT && argptrs[errorarg]->get_type() == p_err.expected) { err_text = "Invalid type in " + p_where + ". The Object-derived class of argument " + itos(errorarg + 1) + " (" + _get_var_type(argptrs[errorarg]) + ") is not a subclass of the expected argument class."; } else #endif // DEBUG_ENABLED { err_text = "Invalid type in " + p_where + ". Cannot convert argument " + itos(errorarg + 1) + " from " + Variant::get_type_name(argptrs[errorarg]->get_type()) + " to " + Variant::get_type_name(p_err.expected) + "."; } } else if (p_err.error == Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS) { err_text = "Invalid call to " + p_where + ". Expected " + itos(p_err.argument) + " arguments."; } else if (p_err.error == Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS) { err_text = "Invalid call to " + p_where + ". Expected " + itos(p_err.argument) + " arguments."; } else if (p_err.error == Variant::CallError::CALL_ERROR_INVALID_METHOD) { err_text = "Invalid call. Nonexistent " + p_where + "."; } else if (p_err.error == Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL) { err_text = "Attempt to call " + p_where + " on a null instance."; } else { err_text = "Bug, call error: #" + itos(p_err.error); } return err_text; } #if defined(__GNUC__) #define OPCODES_TABLE \ static const void *switch_table_ops[] = { \ &&OPCODE_OPERATOR, \ &&OPCODE_EXTENDS_TEST, \ &&OPCODE_IS_BUILTIN, \ &&OPCODE_SET, \ &&OPCODE_GET, \ &&OPCODE_SET_NAMED, \ &&OPCODE_GET_NAMED, \ &&OPCODE_SET_MEMBER, \ &&OPCODE_GET_MEMBER, \ &&OPCODE_ASSIGN, \ &&OPCODE_ASSIGN_TRUE, \ &&OPCODE_ASSIGN_FALSE, \ &&OPCODE_ASSIGN_TYPED_BUILTIN, \ &&OPCODE_ASSIGN_TYPED_NATIVE, \ &&OPCODE_ASSIGN_TYPED_SCRIPT, \ &&OPCODE_CAST_TO_BUILTIN, \ &&OPCODE_CAST_TO_NATIVE, \ &&OPCODE_CAST_TO_SCRIPT, \ &&OPCODE_CONSTRUCT, \ &&OPCODE_CONSTRUCT_ARRAY, \ &&OPCODE_CONSTRUCT_DICTIONARY, \ &&OPCODE_CALL, \ &&OPCODE_CALL_RETURN, \ &&OPCODE_CALL_BUILT_IN, \ &&OPCODE_CALL_SELF, \ &&OPCODE_CALL_SELF_BASE, \ &&OPCODE_YIELD, \ &&OPCODE_YIELD_SIGNAL, \ &&OPCODE_YIELD_RESUME, \ &&OPCODE_JUMP, \ &&OPCODE_JUMP_IF, \ &&OPCODE_JUMP_IF_NOT, \ &&OPCODE_JUMP_TO_DEF_ARGUMENT, \ &&OPCODE_RETURN, \ &&OPCODE_ITERATE_BEGIN, \ &&OPCODE_ITERATE, \ &&OPCODE_ASSERT, \ &&OPCODE_BREAKPOINT, \ &&OPCODE_LINE, \ &&OPCODE_END \ }; #define OPCODE(m_op) \ m_op: #define OPCODE_WHILE(m_test) #define OPCODES_END \ OPSEXIT: #define OPCODES_OUT \ OPSOUT: #define DISPATCH_OPCODE goto *switch_table_ops[_code_ptr[ip]] #define OPCODE_SWITCH(m_test) DISPATCH_OPCODE; #define OPCODE_BREAK goto OPSEXIT #define OPCODE_OUT goto OPSOUT #else #define OPCODES_TABLE #define OPCODE(m_op) case m_op: #define OPCODE_WHILE(m_test) while (m_test) #define OPCODES_END #define OPCODES_OUT #define DISPATCH_OPCODE continue #define OPCODE_SWITCH(m_test) switch (m_test) #define OPCODE_BREAK break #define OPCODE_OUT break #endif Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_args, int p_argcount, Variant::CallError &r_err, CallState *p_state) { OPCODES_TABLE; if (!_code_ptr) { return Variant(); } r_err.error = Variant::CallError::CALL_OK; Variant self; Variant static_ref; Variant retvalue; Variant *stack = nullptr; Variant **call_args; int defarg = 0; #ifdef DEBUG_ENABLED //GDScriptLanguage::get_singleton()->calls++; #endif uint32_t alloca_size = 0; GDScript *script; int ip = 0; int line = _initial_line; if (p_state) { //use existing (supplied) state (yielded) stack = (Variant *)p_state->stack.ptr(); call_args = (Variant **)&p_state->stack.ptr()[sizeof(Variant) * p_state->stack_size]; //ptr() to avoid bounds check line = p_state->line; ip = p_state->ip; alloca_size = p_state->stack.size(); script = p_state->script; p_instance = p_state->instance; defarg = p_state->defarg; self = p_state->self; //stack[p_state->result_pos]=p_state->result; //assign stack with result } else { if (p_argcount != _argument_count) { if (p_argcount > _argument_count) { r_err.error = Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS; r_err.argument = _argument_count; return Variant(); } else if (p_argcount < _argument_count - _default_arg_count) { r_err.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS; r_err.argument = _argument_count - _default_arg_count; return Variant(); } else { defarg = _argument_count - p_argcount; } } alloca_size = sizeof(Variant *) * _call_size + sizeof(Variant) * _stack_size; if (alloca_size) { uint8_t *aptr = (uint8_t *)alloca(alloca_size); if (_stack_size) { stack = (Variant *)aptr; for (int i = 0; i < p_argcount; i++) { if (!argument_types[i].has_type) { memnew_placement(&stack[i], Variant(*p_args[i])); continue; } if (!argument_types[i].is_type(*p_args[i], true)) { if (argument_types[i].is_type(Variant(), true)) { memnew_placement(&stack[i], Variant); continue; } else { r_err.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT; r_err.argument = i; r_err.expected = argument_types[i].kind == GDScriptDataType::BUILTIN ? argument_types[i].builtin_type : Variant::OBJECT; return Variant(); } } if (argument_types[i].kind == GDScriptDataType::BUILTIN) { Variant arg = Variant::construct(argument_types[i].builtin_type, &p_args[i], 1, r_err); memnew_placement(&stack[i], Variant(arg)); } else { memnew_placement(&stack[i], Variant(*p_args[i])); } } for (int i = p_argcount; i < _stack_size; i++) { memnew_placement(&stack[i], Variant); } } else { stack = nullptr; } if (_call_size) { call_args = (Variant **)&aptr[sizeof(Variant) * _stack_size]; } else { call_args = nullptr; } } else { stack = nullptr; call_args = nullptr; } if (p_instance) { self = p_instance->owner; script = p_instance->script.ptr(); } else { script = _script; } } #ifdef DEBUG_ENABLED Variant instance = p_instance; #endif static_ref = script; String err_text; #ifdef DEBUG_ENABLED if (ScriptDebugger::get_singleton()) { GDScriptLanguage::get_singleton()->enter_function(p_instance, this, stack, &ip, &line); } #define GD_ERR_BREAK(m_cond) \ { \ if (unlikely(m_cond)) { \ _err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. Breaking..:"); \ OPCODE_BREAK; \ } \ } #define CHECK_SPACE(m_space) \ GD_ERR_BREAK((ip + m_space) > _code_size) #define GET_VARIANT_PTR(m_v, m_code_ofs) \ Variant *m_v; \ m_v = _get_variant(_code_ptr[ip + m_code_ofs], p_instance, script, self, static_ref, stack, err_text); \ if (unlikely(!m_v)) \ OPCODE_BREAK; #else #define GD_ERR_BREAK(m_cond) #define CHECK_SPACE(m_space) #define GET_VARIANT_PTR(m_v, m_code_ofs) \ Variant *m_v; \ m_v = _get_variant(_code_ptr[ip + m_code_ofs], p_instance, script, self, static_ref, stack, err_text); #endif #ifdef DEBUG_ENABLED uint64_t function_start_time = 0; uint64_t function_call_time = 0; if (GDScriptLanguage::get_singleton()->profiling) { function_start_time = OS::get_singleton()->get_ticks_usec(); function_call_time = 0; profile.call_count++; profile.frame_call_count++; } bool exit_ok = false; bool yielded = false; #endif #ifdef DEBUG_ENABLED OPCODE_WHILE(ip < _code_size) { int last_opcode = _code_ptr[ip]; #else OPCODE_WHILE(true) { #endif OPCODE_SWITCH(_code_ptr[ip]) { OPCODE(OPCODE_OPERATOR) { CHECK_SPACE(5); bool valid; Variant::Operator op = (Variant::Operator)_code_ptr[ip + 1]; GD_ERR_BREAK(op >= Variant::OP_MAX); GET_VARIANT_PTR(a, 2); GET_VARIANT_PTR(b, 3); GET_VARIANT_PTR(dst, 4); #ifdef DEBUG_ENABLED Variant ret; Variant::evaluate(op, *a, *b, ret, valid); #else Variant::evaluate(op, *a, *b, *dst, valid); #endif #ifdef DEBUG_ENABLED if (!valid) { if (ret.get_type() == Variant::STRING) { //return a string when invalid with the error err_text = ret; err_text += " in operator '" + Variant::get_operator_name(op) + "'."; } else { err_text = "Invalid operands '" + Variant::get_type_name(a->get_type()) + "' and '" + Variant::get_type_name(b->get_type()) + "' in operator '" + Variant::get_operator_name(op) + "'."; } OPCODE_BREAK; } *dst = ret; #endif ip += 5; } DISPATCH_OPCODE; OPCODE(OPCODE_EXTENDS_TEST) { CHECK_SPACE(4); GET_VARIANT_PTR(a, 1); GET_VARIANT_PTR(b, 2); GET_VARIANT_PTR(dst, 3); #ifdef DEBUG_ENABLED if (a->is_invalid_object()) { err_text = "Left operand of 'is' was already freed."; OPCODE_BREAK; } if (b->get_type() != Variant::OBJECT || b->is_invalid_object()) { err_text = "Right operand of 'is' is not a class."; OPCODE_BREAK; } #endif bool extends_ok = false; if (a->get_type() == Variant::OBJECT && a->operator Object *() != nullptr) { Object *obj_A = *a; Object *obj_B = *b; GDScript *scr_B = Object::cast_to<GDScript>(obj_B); if (scr_B) { //if B is a script, the only valid condition is that A has an instance which inherits from the script //in other situation, this shoul return false. if (obj_A->get_script_instance() && obj_A->get_script_instance()->get_language() == GDScriptLanguage::get_singleton()) { GDScript *cmp = static_cast<GDScript *>(obj_A->get_script_instance()->get_script().ptr()); //bool found=false; while (cmp) { if (cmp == scr_B) { //inherits from script, all ok extends_ok = true; break; } cmp = cmp->_base; } } } else { GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(obj_B); #ifdef DEBUG_ENABLED if (!nc) { if (obj_B) { err_text = "Right operand of 'is' is not a class (type: '" + obj_B->get_class() + "')."; } else { err_text = "Right operand of 'is' is null."; } OPCODE_BREAK; } #endif extends_ok = ClassDB::is_parent_class(obj_A->get_class_name(), nc->get_name()); } } *dst = extends_ok; ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_IS_BUILTIN) { CHECK_SPACE(4); GET_VARIANT_PTR(value, 1); Variant::Type var_type = (Variant::Type)_code_ptr[ip + 2]; GET_VARIANT_PTR(dst, 3); GD_ERR_BREAK(var_type < 0 || var_type >= Variant::VARIANT_MAX); *dst = value->get_type() == var_type; ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_SET) { CHECK_SPACE(3); GET_VARIANT_PTR(dst, 1); GET_VARIANT_PTR(index, 2); GET_VARIANT_PTR(value, 3); bool valid; dst->set(*index, *value, &valid); #ifdef DEBUG_ENABLED if (!valid) { String v = index->operator String(); if (v != "") { v = "'" + v + "'"; } else { v = "of type '" + _get_var_type(index) + "'"; } err_text = "Invalid set index " + v + " (on base: '" + _get_var_type(dst) + "') with value of type '" + _get_var_type(value) + "'"; OPCODE_BREAK; } #endif ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_GET) { CHECK_SPACE(3); GET_VARIANT_PTR(src, 1); GET_VARIANT_PTR(index, 2); GET_VARIANT_PTR(dst, 3); bool valid; #ifdef DEBUG_ENABLED //allow better error message in cases where src and dst are the same stack position Variant ret = src->get(*index, &valid); #else *dst = src->get(*index, &valid); #endif #ifdef DEBUG_ENABLED if (!valid) { String v = index->operator String(); if (v != "") { v = "'" + v + "'"; } else { v = "of type '" + _get_var_type(index) + "'"; } err_text = "Invalid get index " + v + " (on base: '" + _get_var_type(src) + "')."; OPCODE_BREAK; } *dst = ret; #endif ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_SET_NAMED) { CHECK_SPACE(3); GET_VARIANT_PTR(dst, 1); GET_VARIANT_PTR(value, 3); int indexname = _code_ptr[ip + 2]; GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count); const StringName *index = &_global_names_ptr[indexname]; bool valid; dst->set_named(*index, *value, &valid); #ifdef DEBUG_ENABLED if (!valid) { String err_type; err_text = "Invalid set index '" + String(*index) + "' (on base: '" + _get_var_type(dst) + "') with value of type '" + _get_var_type(value) + "'."; OPCODE_BREAK; } #endif ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_GET_NAMED) { CHECK_SPACE(4); GET_VARIANT_PTR(src, 1); GET_VARIANT_PTR(dst, 3); int indexname = _code_ptr[ip + 2]; GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count); const StringName *index = &_global_names_ptr[indexname]; bool valid; #ifdef DEBUG_ENABLED //allow better error message in cases where src and dst are the same stack position Variant ret = src->get_named(*index, &valid); #else *dst = src->get_named(*index, &valid); #endif #ifdef DEBUG_ENABLED if (!valid) { if (src->has_method(*index)) { err_text = "Invalid get index '" + index->operator String() + "' (on base: '" + _get_var_type(src) + "'). Did you mean '." + index->operator String() + "()' or funcref(obj, \"" + index->operator String() + "\") ?"; } else { err_text = "Invalid get index '" + index->operator String() + "' (on base: '" + _get_var_type(src) + "')."; } OPCODE_BREAK; } *dst = ret; #endif ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_SET_MEMBER) { CHECK_SPACE(3); int indexname = _code_ptr[ip + 1]; GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count); const StringName *index = &_global_names_ptr[indexname]; GET_VARIANT_PTR(src, 2); bool valid; #ifndef DEBUG_ENABLED ClassDB::set_property(p_instance->owner, *index, *src, &valid); #else bool ok = ClassDB::set_property(p_instance->owner, *index, *src, &valid); if (!ok) { err_text = "Internal error setting property: " + String(*index); OPCODE_BREAK; } else if (!valid) { err_text = "Error setting property '" + String(*index) + "' with value of type " + Variant::get_type_name(src->get_type()) + "."; OPCODE_BREAK; } #endif ip += 3; } DISPATCH_OPCODE; OPCODE(OPCODE_GET_MEMBER) { CHECK_SPACE(3); int indexname = _code_ptr[ip + 1]; GD_ERR_BREAK(indexname < 0 || indexname >= _global_names_count); const StringName *index = &_global_names_ptr[indexname]; GET_VARIANT_PTR(dst, 2); #ifndef DEBUG_ENABLED ClassDB::get_property(p_instance->owner, *index, *dst); #else bool ok = ClassDB::get_property(p_instance->owner, *index, *dst); if (!ok) { err_text = "Internal error getting property: " + String(*index); OPCODE_BREAK; } #endif ip += 3; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN) { CHECK_SPACE(3); GET_VARIANT_PTR(dst, 1); GET_VARIANT_PTR(src, 2); *dst = *src; ip += 3; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN_TRUE) { CHECK_SPACE(2); GET_VARIANT_PTR(dst, 1); *dst = true; ip += 2; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN_FALSE) { CHECK_SPACE(2); GET_VARIANT_PTR(dst, 1); *dst = false; ip += 2; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN_TYPED_BUILTIN) { CHECK_SPACE(4); GET_VARIANT_PTR(dst, 2); GET_VARIANT_PTR(src, 3); Variant::Type var_type = (Variant::Type)_code_ptr[ip + 1]; GD_ERR_BREAK(var_type < 0 || var_type >= Variant::VARIANT_MAX); if (src->get_type() != var_type) { #ifdef DEBUG_ENABLED if (Variant::can_convert_strict(src->get_type(), var_type)) { #endif // DEBUG_ENABLED Variant::CallError ce; *dst = Variant::construct(var_type, const_cast<const Variant **>(&src), 1, ce); } else { #ifdef DEBUG_ENABLED err_text = "Trying to assign value of type '" + Variant::get_type_name(src->get_type()) + "' to a variable of type '" + Variant::get_type_name(var_type) + "'."; OPCODE_BREAK; } } else { #endif // DEBUG_ENABLED *dst = *src; } ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN_TYPED_NATIVE) { CHECK_SPACE(4); GET_VARIANT_PTR(dst, 2); GET_VARIANT_PTR(src, 3); #ifdef DEBUG_ENABLED GET_VARIANT_PTR(type, 1); GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(type->operator Object *()); GD_ERR_BREAK(!nc); if (src->get_type() != Variant::OBJECT && src->get_type() != Variant::NIL) { err_text = "Trying to assign value of type '" + Variant::get_type_name(src->get_type()) + "' to a variable of type '" + nc->get_name() + "'."; OPCODE_BREAK; } Object *src_obj = src->operator Object *(); if (src_obj && !ClassDB::is_parent_class(src_obj->get_class_name(), nc->get_name())) { err_text = "Trying to assign value of type '" + src_obj->get_class_name() + "' to a variable of type '" + nc->get_name() + "'."; OPCODE_BREAK; } #endif // DEBUG_ENABLED *dst = *src; ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_ASSIGN_TYPED_SCRIPT) { CHECK_SPACE(4); GET_VARIANT_PTR(dst, 2); GET_VARIANT_PTR(src, 3); #ifdef DEBUG_ENABLED GET_VARIANT_PTR(type, 1); Script *base_type = Object::cast_to<Script>(type->operator Object *()); GD_ERR_BREAK(!base_type); if (src->get_type() != Variant::OBJECT && src->get_type() != Variant::NIL) { err_text = "Trying to assign a non-object value to a variable of type '" + base_type->get_path().get_file() + "'."; OPCODE_BREAK; } if (src->get_type() != Variant::NIL && src->operator Object *() != nullptr) { ScriptInstance *scr_inst = src->operator Object *()->get_script_instance(); if (!scr_inst) { err_text = "Trying to assign value of type '" + src->operator Object *()->get_class_name() + "' to a variable of type '" + base_type->get_path().get_file() + "'."; OPCODE_BREAK; } Script *src_type = src->operator Object *()->get_script_instance()->get_script().ptr(); bool valid = false; while (src_type) { if (src_type == base_type) { valid = true; break; } src_type = src_type->get_base_script().ptr(); } if (!valid) { err_text = "Trying to assign value of type '" + src->operator Object *()->get_script_instance()->get_script()->get_path().get_file() + "' to a variable of type '" + base_type->get_path().get_file() + "'."; OPCODE_BREAK; } } #endif // DEBUG_ENABLED *dst = *src; ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_CAST_TO_BUILTIN) { CHECK_SPACE(4); Variant::Type to_type = (Variant::Type)_code_ptr[ip + 1]; GET_VARIANT_PTR(src, 2); GET_VARIANT_PTR(dst, 3); GD_ERR_BREAK(to_type < 0 || to_type >= Variant::VARIANT_MAX); Variant::CallError err; *dst = Variant::construct(to_type, (const Variant **)&src, 1, err); #ifdef DEBUG_ENABLED if (src->is_invalid_object()) { err_text = "Trying to cast a deleted object."; OPCODE_BREAK; } if (err.error != Variant::CallError::CALL_OK) { err_text = "Invalid cast: could not convert value to '" + Variant::get_type_name(to_type) + "'."; OPCODE_BREAK; } #endif ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_CAST_TO_NATIVE) { CHECK_SPACE(4); GET_VARIANT_PTR(to_type, 1); GET_VARIANT_PTR(src, 2); GET_VARIANT_PTR(dst, 3); GDScriptNativeClass *nc = Object::cast_to<GDScriptNativeClass>(to_type->operator Object *()); GD_ERR_BREAK(!nc); #ifdef DEBUG_ENABLED if (src->is_invalid_object()) { err_text = "Trying to cast a deleted object."; OPCODE_BREAK; } if (src->get_type() != Variant::OBJECT && src->get_type() != Variant::NIL) { err_text = "Invalid cast: can't convert a non-object value to an object type."; OPCODE_BREAK; } #endif Object *src_obj = src->operator Object *(); if (src_obj && !ClassDB::is_parent_class(src_obj->get_class_name(), nc->get_name())) { *dst = Variant(); // invalid cast, assign NULL } else { *dst = *src; } ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_CAST_TO_SCRIPT) { CHECK_SPACE(4); GET_VARIANT_PTR(to_type, 1); GET_VARIANT_PTR(src, 2); GET_VARIANT_PTR(dst, 3); Script *base_type = Object::cast_to<Script>(to_type->operator Object *()); GD_ERR_BREAK(!base_type); #ifdef DEBUG_ENABLED if (src->is_invalid_object()) { err_text = "Trying to cast a deleted object."; OPCODE_BREAK; } if (src->get_type() != Variant::OBJECT && src->get_type() != Variant::NIL) { err_text = "Trying to assign a non-object value to a variable of type '" + base_type->get_path().get_file() + "'."; OPCODE_BREAK; } #endif bool valid = false; if (src->get_type() != Variant::NIL && src->operator Object *() != nullptr) { ScriptInstance *scr_inst = src->operator Object *()->get_script_instance(); if (scr_inst) { Script *src_type = src->operator Object *()->get_script_instance()->get_script().ptr(); while (src_type) { if (src_type == base_type) { valid = true; break; } src_type = src_type->get_base_script().ptr(); } } } if (valid) { *dst = *src; // Valid cast, copy the source object } else { *dst = Variant(); // invalid cast, assign NULL } ip += 4; } DISPATCH_OPCODE; OPCODE(OPCODE_CONSTRUCT) { CHECK_SPACE(2); Variant::Type t = Variant::Type(_code_ptr[ip + 1]); int argc = _code_ptr[ip + 2]; CHECK_SPACE(argc + 2); Variant **argptrs = call_args; for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(v, 3 + i); argptrs[i] = v; } GET_VARIANT_PTR(dst, 3 + argc); Variant::CallError err; *dst = Variant::construct(t, (const Variant **)argptrs, argc, err); #ifdef DEBUG_ENABLED if (err.error != Variant::CallError::CALL_OK) { err_text = _get_call_error(err, "'" + Variant::get_type_name(t) + "' constructor", (const Variant **)argptrs); OPCODE_BREAK; } #endif ip += 4 + argc; //construct a basic type } DISPATCH_OPCODE; OPCODE(OPCODE_CONSTRUCT_ARRAY) { CHECK_SPACE(1); int argc = _code_ptr[ip + 1]; Array array; //arrays are always shared array.resize(argc); CHECK_SPACE(argc + 2); for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(v, 2 + i); array[i] = *v; } GET_VARIANT_PTR(dst, 2 + argc); *dst = array; ip += 3 + argc; } DISPATCH_OPCODE; OPCODE(OPCODE_CONSTRUCT_DICTIONARY) { CHECK_SPACE(1); int argc = _code_ptr[ip + 1]; Dictionary dict; //arrays are always shared CHECK_SPACE(argc * 2 + 2); for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(k, 2 + i * 2 + 0); GET_VARIANT_PTR(v, 2 + i * 2 + 1); dict[*k] = *v; } GET_VARIANT_PTR(dst, 2 + argc * 2); *dst = dict; ip += 3 + argc * 2; } DISPATCH_OPCODE; OPCODE(OPCODE_CALL_RETURN) OPCODE(OPCODE_CALL) { CHECK_SPACE(4); bool call_ret = _code_ptr[ip] == OPCODE_CALL_RETURN; int argc = _code_ptr[ip + 1]; GET_VARIANT_PTR(base, 2); int nameg = _code_ptr[ip + 3]; GD_ERR_BREAK(nameg < 0 || nameg >= _global_names_count); const StringName *methodname = &_global_names_ptr[nameg]; GD_ERR_BREAK(argc < 0); ip += 4; CHECK_SPACE(argc + 1); Variant **argptrs = call_args; for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(v, i); argptrs[i] = v; } #ifdef DEBUG_ENABLED uint64_t call_time = 0; if (GDScriptLanguage::get_singleton()->profiling) { call_time = OS::get_singleton()->get_ticks_usec(); } #endif Variant::CallError err; if (call_ret) { GET_VARIANT_PTR(ret, argc); base->call_ptr(*methodname, (const Variant **)argptrs, argc, ret, err); } else { base->call_ptr(*methodname, (const Variant **)argptrs, argc, nullptr, err); } #ifdef DEBUG_ENABLED if (GDScriptLanguage::get_singleton()->profiling) { function_call_time += OS::get_singleton()->get_ticks_usec() - call_time; } if (err.error != Variant::CallError::CALL_OK) { String methodstr = *methodname; String basestr = _get_var_type(base); if (methodstr == "call") { if (argc >= 1) { methodstr = String(*argptrs[0]) + " (via call)"; if (err.error == Variant::CallError::CALL_ERROR_INVALID_ARGUMENT) { err.argument += 1; } } } else if (methodstr == "free") { if (err.error == Variant::CallError::CALL_ERROR_INVALID_METHOD) { if (base->is_ref()) { err_text = "Attempted to free a reference."; OPCODE_BREAK; } else if (base->get_type() == Variant::OBJECT) { err_text = "Attempted to free a locked object (calling or emitting)."; OPCODE_BREAK; } } } else if (methodstr == "call_recursive" && basestr == "TreeItem") { if (argc >= 1) { methodstr = String(*argptrs[0]) + " (via TreeItem.call_recursive)"; if (err.error == Variant::CallError::CALL_ERROR_INVALID_ARGUMENT) { err.argument += 1; } } } err_text = _get_call_error(err, "function '" + methodstr + "' in base '" + basestr + "'", (const Variant **)argptrs); OPCODE_BREAK; } #endif //_call_func(NULL,base,*methodname,ip,argc,p_instance,stack); ip += argc + 1; } DISPATCH_OPCODE; OPCODE(OPCODE_CALL_BUILT_IN) { CHECK_SPACE(4); GDScriptFunctions::Function func = GDScriptFunctions::Function(_code_ptr[ip + 1]); int argc = _code_ptr[ip + 2]; GD_ERR_BREAK(argc < 0); ip += 3; CHECK_SPACE(argc + 1); Variant **argptrs = call_args; for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(v, i); argptrs[i] = v; } GET_VARIANT_PTR(dst, argc); Variant::CallError err; GDScriptFunctions::call(func, (const Variant **)argptrs, argc, *dst, err); #ifdef DEBUG_ENABLED if (err.error != Variant::CallError::CALL_OK) { String methodstr = GDScriptFunctions::get_func_name(func); if (dst->get_type() == Variant::STRING) { //call provided error string err_text = "Error calling built-in function '" + methodstr + "': " + String(*dst); } else { err_text = _get_call_error(err, "built-in function '" + methodstr + "'", (const Variant **)argptrs); } OPCODE_BREAK; } #endif ip += argc + 1; } DISPATCH_OPCODE; OPCODE(OPCODE_CALL_SELF) { OPCODE_BREAK; } OPCODE(OPCODE_CALL_SELF_BASE) { CHECK_SPACE(2); int self_fun = _code_ptr[ip + 1]; #ifdef DEBUG_ENABLED if (self_fun < 0 || self_fun >= _global_names_count) { err_text = "compiler bug, function name not found"; OPCODE_BREAK; } #endif const StringName *methodname = &_global_names_ptr[self_fun]; int argc = _code_ptr[ip + 2]; CHECK_SPACE(2 + argc + 1); Variant **argptrs = call_args; for (int i = 0; i < argc; i++) { GET_VARIANT_PTR(v, i + 3); argptrs[i] = v; } GET_VARIANT_PTR(dst, argc + 3); const GDScript *gds = _script; const Map<StringName, GDScriptFunction *>::Element *E = nullptr; while (gds->base.ptr()) { gds = gds->base.ptr(); E = gds->member_functions.find(*methodname); if (E) { break; } } Variant::CallError err; if (E) { *dst = E->get()->call(p_instance, (const Variant **)argptrs, argc, err); } else if (gds->native.ptr()) { if (*methodname != GDScriptLanguage::get_singleton()->strings._init) { MethodBind *mb = ClassDB::get_method(gds->native->get_name(), *methodname); if (!mb) { err.error = Variant::CallError::CALL_ERROR_INVALID_METHOD; } else { *dst = mb->call(p_instance->owner, (const Variant **)argptrs, argc, err); } } else { err.error = Variant::CallError::CALL_OK; } } else { if (*methodname != GDScriptLanguage::get_singleton()->strings._init) { err.error = Variant::CallError::CALL_ERROR_INVALID_METHOD; } else { err.error = Variant::CallError::CALL_OK; } } if (err.error != Variant::CallError::CALL_OK) { String methodstr = *methodname; err_text = _get_call_error(err, "function '" + methodstr + "'", (const Variant **)argptrs); OPCODE_BREAK; } ip += 4 + argc; } DISPATCH_OPCODE; OPCODE(OPCODE_YIELD) OPCODE(OPCODE_YIELD_SIGNAL) { int ipofs = 1; if (_code_ptr[ip] == OPCODE_YIELD_SIGNAL) { CHECK_SPACE(4); ipofs += 2; } else { CHECK_SPACE(2); } Ref<GDScriptFunctionState> gdfs = memnew(GDScriptFunctionState); gdfs->function = this; gdfs->state.stack.resize(alloca_size); //copy variant stack for (int i = 0; i < _stack_size; i++) { memnew_placement(&gdfs->state.stack.write[sizeof(Variant) * i], Variant(stack[i])); } gdfs->state.stack_size = _stack_size; gdfs->state.self = self; gdfs->state.alloca_size = alloca_size; gdfs->state.ip = ip + ipofs; gdfs->state.line = line; gdfs->state.script = _script; GDScriptLanguage::singleton->lock.lock(); _script->pending_func_states.add(&gdfs->scripts_list); if (p_instance) { gdfs->state.instance = p_instance; p_instance->pending_func_states.add(&gdfs->instances_list); } else { gdfs->state.instance = nullptr; } GDScriptLanguage::singleton->lock.unlock(); #ifdef DEBUG_ENABLED gdfs->state.function_name = name; gdfs->state.script_path = _script->get_path(); #endif //gdfs->state.result_pos=ip+ipofs-1; gdfs->state.defarg = defarg; gdfs->function = this; retvalue = gdfs; if (_code_ptr[ip] == OPCODE_YIELD_SIGNAL) { //do the oneshot connect GET_VARIANT_PTR(argobj, 1); GET_VARIANT_PTR(argname, 2); #ifdef DEBUG_ENABLED if (argobj->get_type() != Variant::OBJECT) { err_text = "First argument of yield() not of type object."; OPCODE_BREAK; } if (argname->get_type() != Variant::STRING) { err_text = "Second argument of yield() not a string (for signal name)."; OPCODE_BREAK; } #endif Object *obj = argobj->operator Object *(); String signal = argname->operator String(); if (argobj->is_invalid_object()) { err_text = "First argument of yield() is a previously freed instance."; OPCODE_BREAK; } #ifdef DEBUG_ENABLED if (!obj) { err_text = "First argument of yield() is null."; OPCODE_BREAK; } if (signal.length() == 0) { err_text = "Second argument of yield() is an empty string (for signal name)."; OPCODE_BREAK; } Error err = obj->connect(signal, gdfs.ptr(), "_signal_callback", varray(gdfs), Object::CONNECT_ONESHOT); if (err != OK) { err_text = "Error connecting to signal: " + signal + " during yield()."; OPCODE_BREAK; } #else obj->connect(signal, gdfs.ptr(), "_signal_callback", varray(gdfs), Object::CONNECT_ONESHOT); #endif } #ifdef DEBUG_ENABLED exit_ok = true; yielded = true; #endif OPCODE_BREAK; } OPCODE(OPCODE_YIELD_RESUME) { CHECK_SPACE(2); #ifdef DEBUG_ENABLED if (!p_state) { err_text = ("Invalid Resume (bug?)"); OPCODE_BREAK; } #endif GET_VARIANT_PTR(result, 1); *result = p_state->result; ip += 2; } DISPATCH_OPCODE; OPCODE(OPCODE_JUMP) { CHECK_SPACE(2); int to = _code_ptr[ip + 1]; GD_ERR_BREAK(to < 0 || to > _code_size); ip = to; } DISPATCH_OPCODE; OPCODE(OPCODE_JUMP_IF) { CHECK_SPACE(3); GET_VARIANT_PTR(test, 1); bool result = test->booleanize(); if (result) { int to = _code_ptr[ip + 2]; GD_ERR_BREAK(to < 0 || to > _code_size); ip = to; } else { ip += 3; } } DISPATCH_OPCODE; OPCODE(OPCODE_JUMP_IF_NOT) { CHECK_SPACE(3); GET_VARIANT_PTR(test, 1); bool result = test->booleanize(); if (!result) { int to = _code_ptr[ip + 2]; GD_ERR_BREAK(to < 0 || to > _code_size); ip = to; } else { ip += 3; } } DISPATCH_OPCODE; OPCODE(OPCODE_JUMP_TO_DEF_ARGUMENT) { CHECK_SPACE(2); ip = _default_arg_ptr[defarg]; } DISPATCH_OPCODE; OPCODE(OPCODE_RETURN) { CHECK_SPACE(2); GET_VARIANT_PTR(r, 1); retvalue = *r; #ifdef DEBUG_ENABLED exit_ok = true; #endif OPCODE_BREAK; } OPCODE(OPCODE_ITERATE_BEGIN) { CHECK_SPACE(8); //space for this a regular iterate GET_VARIANT_PTR(counter, 1); GET_VARIANT_PTR(container, 2); bool valid; if (!container->iter_init(*counter, valid)) { #ifdef DEBUG_ENABLED if (!valid) { err_text = "Unable to iterate on object of type '" + Variant::get_type_name(container->get_type()) + "'."; OPCODE_BREAK; } #endif int jumpto = _code_ptr[ip + 3]; GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size); ip = jumpto; } else { GET_VARIANT_PTR(iterator, 4); *iterator = container->iter_get(*counter, valid); #ifdef DEBUG_ENABLED if (!valid) { err_text = "Unable to obtain iterator object of type '" + Variant::get_type_name(container->get_type()) + "'."; OPCODE_BREAK; } #endif ip += 5; //skip regular iterate which is always next } } DISPATCH_OPCODE; OPCODE(OPCODE_ITERATE) { CHECK_SPACE(4); GET_VARIANT_PTR(counter, 1); GET_VARIANT_PTR(container, 2); bool valid; if (!container->iter_next(*counter, valid)) { #ifdef DEBUG_ENABLED if (!valid) { err_text = "Unable to iterate on object of type '" + Variant::get_type_name(container->get_type()) + "' (type changed since first iteration?)."; OPCODE_BREAK; } #endif int jumpto = _code_ptr[ip + 3]; GD_ERR_BREAK(jumpto < 0 || jumpto > _code_size); ip = jumpto; } else { GET_VARIANT_PTR(iterator, 4); *iterator = container->iter_get(*counter, valid); #ifdef DEBUG_ENABLED if (!valid) { err_text = "Unable to obtain iterator object of type '" + Variant::get_type_name(container->get_type()) + "' (but was obtained on first iteration?)."; OPCODE_BREAK; } #endif ip += 5; //loop again } } DISPATCH_OPCODE; OPCODE(OPCODE_ASSERT) { CHECK_SPACE(3); #ifdef DEBUG_ENABLED GET_VARIANT_PTR(test, 1); bool result = test->booleanize(); if (!result) { String message_str; if (_code_ptr[ip + 2] != 0) { GET_VARIANT_PTR(message, 2); message_str = *message; } if (message_str.empty()) { err_text = "Assertion failed."; } else { err_text = "Assertion failed: " + message_str; } OPCODE_BREAK; } #endif ip += 3; } DISPATCH_OPCODE; OPCODE(OPCODE_BREAKPOINT) { #ifdef DEBUG_ENABLED if (ScriptDebugger::get_singleton()) { GDScriptLanguage::get_singleton()->debug_break("Breakpoint Statement", true); } #endif ip += 1; } DISPATCH_OPCODE; OPCODE(OPCODE_LINE) { CHECK_SPACE(2); line = _code_ptr[ip + 1]; ip += 2; if (ScriptDebugger::get_singleton()) { // line bool do_break = false; if (ScriptDebugger::get_singleton()->get_lines_left() > 0) { if (ScriptDebugger::get_singleton()->get_depth() <= 0) { ScriptDebugger::get_singleton()->set_lines_left(ScriptDebugger::get_singleton()->get_lines_left() - 1); } if (ScriptDebugger::get_singleton()->get_lines_left() <= 0) { do_break = true; } } if (ScriptDebugger::get_singleton()->is_breakpoint(line, source)) { do_break = true; } if (do_break) { GDScriptLanguage::get_singleton()->debug_break("Breakpoint", true); } ScriptDebugger::get_singleton()->line_poll(); } } DISPATCH_OPCODE; OPCODE(OPCODE_END) { #ifdef DEBUG_ENABLED exit_ok = true; #endif OPCODE_BREAK; } #if 0 // Enable for debugging. default: { err_text = "Illegal opcode " + itos(_code_ptr[ip]) + " at address " + itos(ip); OPCODE_BREAK; } #endif } OPCODES_END #ifdef DEBUG_ENABLED if (exit_ok) { OPCODE_OUT; } //error // function, file, line, error, explanation String err_file; if (p_instance && !instance.is_invalid_object() && p_instance->script->is_valid() && p_instance->script->path != "") { err_file = p_instance->script->path; } else if (script) { err_file = script->path; } if (err_file == "") { err_file = "<built-in>"; } String err_func = name; if (p_instance && !instance.is_invalid_object() && p_instance->script->is_valid() && p_instance->script->name != "") { err_func = p_instance->script->name + "." + err_func; } int err_line = line; if (err_text == "") { err_text = "Internal script error! Opcode: " + itos(last_opcode) + " (please report)."; } if (!GDScriptLanguage::get_singleton()->debug_break(err_text, false)) { // debugger break did not happen _err_print_error(err_func.utf8().get_data(), err_file.utf8().get_data(), err_line, err_text.utf8().get_data(), ERR_HANDLER_SCRIPT); } #endif OPCODE_OUT; } OPCODES_OUT #ifdef DEBUG_ENABLED if (GDScriptLanguage::get_singleton()->profiling) { uint64_t time_taken = OS::get_singleton()->get_ticks_usec() - function_start_time; profile.total_time += time_taken; profile.self_time += time_taken - function_call_time; profile.frame_total_time += time_taken; profile.frame_self_time += time_taken - function_call_time; GDScriptLanguage::get_singleton()->script_frame_time += time_taken - function_call_time; } // Check if this is the last time the function is resuming from yield // Will be true if never yielded as well // When it's the last resume it will postpone the exit from stack, // so the debugger knows which function triggered the resume of the next function (if any) if (!p_state || yielded) { if (ScriptDebugger::get_singleton()) { GDScriptLanguage::get_singleton()->exit_function(); } #endif if (_stack_size) { //free stack for (int i = 0; i < _stack_size; i++) { stack[i].~Variant(); } } #ifdef DEBUG_ENABLED } #endif return retvalue; } const int *GDScriptFunction::get_code() const { return _code_ptr; } int GDScriptFunction::get_code_size() const { return _code_size; } Variant GDScriptFunction::get_constant(int p_idx) const { ERR_FAIL_INDEX_V(p_idx, constants.size(), "<errconst>"); return constants[p_idx]; } StringName GDScriptFunction::get_global_name(int p_idx) const { ERR_FAIL_INDEX_V(p_idx, global_names.size(), "<errgname>"); return global_names[p_idx]; } int GDScriptFunction::get_default_argument_count() const { return _default_arg_count; } int GDScriptFunction::get_default_argument_addr(int p_idx) const { ERR_FAIL_INDEX_V(p_idx, default_arguments.size(), -1); return default_arguments[p_idx]; } GDScriptDataType GDScriptFunction::get_return_type() const { return return_type; } GDScriptDataType GDScriptFunction::get_argument_type(int p_idx) const { ERR_FAIL_INDEX_V(p_idx, argument_types.size(), GDScriptDataType()); return argument_types[p_idx]; } StringName GDScriptFunction::get_name() const { return name; } int GDScriptFunction::get_max_stack_size() const { return _stack_size; } struct _GDFKC { int order; List<int> pos; }; struct _GDFKCS { int order; StringName id; int pos; bool operator<(const _GDFKCS &p_r) const { return order < p_r.order; } }; void GDScriptFunction::debug_get_stack_member_state(int p_line, List<Pair<StringName, int>> *r_stackvars) const { int oc = 0; Map<StringName, _GDFKC> sdmap; for (const List<StackDebug>::Element *E = stack_debug.front(); E; E = E->next()) { const StackDebug &sd = E->get(); if (sd.line > p_line) { break; } if (sd.added) { if (!sdmap.has(sd.identifier)) { _GDFKC d; d.order = oc++; d.pos.push_back(sd.pos); sdmap[sd.identifier] = d; } else { sdmap[sd.identifier].pos.push_back(sd.pos); } } else { ERR_CONTINUE(!sdmap.has(sd.identifier)); sdmap[sd.identifier].pos.pop_back(); if (sdmap[sd.identifier].pos.empty()) { sdmap.erase(sd.identifier); } } } List<_GDFKCS> stackpositions; for (Map<StringName, _GDFKC>::Element *E = sdmap.front(); E; E = E->next()) { _GDFKCS spp; spp.id = E->key(); spp.order = E->get().order; spp.pos = E->get().pos.back()->get(); stackpositions.push_back(spp); } stackpositions.sort(); for (List<_GDFKCS>::Element *E = stackpositions.front(); E; E = E->next()) { Pair<StringName, int> p; p.first = E->get().id; p.second = E->get().pos; r_stackvars->push_back(p); } } GDScriptFunction::GDScriptFunction() : function_list(this) { _stack_size = 0; _call_size = 0; rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED; name = "<anonymous>"; #ifdef DEBUG_ENABLED _func_cname = nullptr; GDScriptLanguage::get_singleton()->lock.lock(); GDScriptLanguage::get_singleton()->function_list.add(&function_list); GDScriptLanguage::get_singleton()->lock.unlock(); profile.call_count = 0; profile.self_time = 0; profile.total_time = 0; profile.frame_call_count = 0; profile.frame_self_time = 0; profile.frame_total_time = 0; profile.last_frame_call_count = 0; profile.last_frame_self_time = 0; profile.last_frame_total_time = 0; #endif } GDScriptFunction::~GDScriptFunction() { #ifdef DEBUG_ENABLED GDScriptLanguage::get_singleton()->lock.lock(); GDScriptLanguage::get_singleton()->function_list.remove(&function_list); GDScriptLanguage::get_singleton()->lock.unlock(); #endif } ///////////////////// Variant GDScriptFunctionState::_signal_callback(const Variant **p_args, int p_argcount, Variant::CallError &r_error) { Variant arg; r_error.error = Variant::CallError::CALL_OK; if (p_argcount == 0) { r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS; r_error.argument = 1; return Variant(); } else if (p_argcount == 1) { //noooneee } else if (p_argcount == 2) { arg = *p_args[0]; } else { Array extra_args; for (int i = 0; i < p_argcount - 1; i++) { extra_args.push_back(*p_args[i]); } arg = extra_args; } Ref<GDScriptFunctionState> self = *p_args[p_argcount - 1]; if (self.is_null()) { r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT; r_error.argument = p_argcount - 1; r_error.expected = Variant::OBJECT; return Variant(); } return resume(arg); } bool GDScriptFunctionState::is_valid(bool p_extended_check) const { if (function == nullptr) { return false; } if (p_extended_check) { #ifndef NO_THREADS MutexLock lock(GDScriptLanguage::get_singleton()->lock); #endif // Script gone? if (!scripts_list.in_list()) { return false; } // Class instance gone? (if not static function) if (state.instance && !instances_list.in_list()) { return false; } } return true; } Variant GDScriptFunctionState::resume(const Variant &p_arg) { ERR_FAIL_COND_V(!function, Variant()); { #ifndef NO_THREADS MutexLock lock(GDScriptLanguage::singleton->lock); #endif if (!scripts_list.in_list()) { #ifdef DEBUG_ENABLED ERR_FAIL_V_MSG(Variant(), "Resumed function '" + state.function_name + "()' after yield, but script is gone. At script: " + state.script_path + ":" + itos(state.line)); #else return Variant(); #endif } if (state.instance && !instances_list.in_list()) { #ifdef DEBUG_ENABLED ERR_FAIL_V_MSG(Variant(), "Resumed function '" + state.function_name + "()' after yield, but class instance is gone. At script: " + state.script_path + ":" + itos(state.line)); #else return Variant(); #endif } // Do these now to avoid locking again after the call scripts_list.remove_from_list(); instances_list.remove_from_list(); } state.result = p_arg; Variant::CallError err; Variant ret = function->call(nullptr, nullptr, 0, err, &state); bool completed = true; // If the return value is a GDScriptFunctionState reference, // then the function did yield again after resuming. if (ret.is_ref()) { GDScriptFunctionState *gdfs = Object::cast_to<GDScriptFunctionState>(ret); if (gdfs && gdfs->function == function) { completed = false; gdfs->first_state = first_state.is_valid() ? first_state : Ref<GDScriptFunctionState>(this); } } function = nullptr; //cleaned up; state.result = Variant(); if (completed) { if (first_state.is_valid()) { first_state->emit_signal("completed", ret); } else { emit_signal("completed", ret); } #ifdef DEBUG_ENABLED if (ScriptDebugger::get_singleton()) { GDScriptLanguage::get_singleton()->exit_function(); } #endif } return ret; } void GDScriptFunctionState::_clear_stack() { if (state.stack_size) { Variant *stack = (Variant *)state.stack.ptr(); for (int i = 0; i < state.stack_size; i++) { stack[i].~Variant(); } state.stack_size = 0; } } void GDScriptFunctionState::_bind_methods() { ClassDB::bind_method(D_METHOD("resume", "arg"), &GDScriptFunctionState::resume, DEFVAL(Variant())); ClassDB::bind_method(D_METHOD("is_valid", "extended_check"), &GDScriptFunctionState::is_valid, DEFVAL(false)); ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "_signal_callback", &GDScriptFunctionState::_signal_callback, MethodInfo("_signal_callback")); ADD_SIGNAL(MethodInfo("completed", PropertyInfo(Variant::NIL, "result", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT))); } GDScriptFunctionState::GDScriptFunctionState() : scripts_list(this), instances_list(this) { function = nullptr; } GDScriptFunctionState::~GDScriptFunctionState() { _clear_stack(); GDScriptLanguage::singleton->lock.lock(); scripts_list.remove_from_list(); instances_list.remove_from_list(); GDScriptLanguage::singleton->lock.unlock(); }