mirror of
https://github.com/godotengine/godot
synced 2024-07-08 17:30:45 +00:00
Avoid GDScript bookkeeping from referencing objects longer than necessary
This commit is contained in:
Pedro J. Estébanez
parent
953383328a
commit
5e9400fa50
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@ -143,6 +143,11 @@ void GDScriptByteCodeGenerator::pop_temporary() {
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ERR_FAIL_COND(used_temporaries.is_empty());
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int slot_idx = used_temporaries.back()->get();
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const StackSlot &slot = temporaries[slot_idx];
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if (slot.type == Variant::OBJECT) {
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// Avoid keeping in the stack long-lived references to objects,
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// which may prevent RefCounted objects from being freed.
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write_assign_false(Address(Address::TEMPORARY, slot_idx));
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}
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temporaries_pool[slot.type].push_back(slot_idx);
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used_temporaries.pop_back();
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}
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@ -954,7 +959,7 @@ void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Addres
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append(index);
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}
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GDScriptCodeGenerator::Address GDScriptByteCodeGenerator::get_call_target(const GDScriptCodeGenerator::Address &p_target, Variant::Type p_type) {
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GDScriptByteCodeGenerator::CallTarget GDScriptByteCodeGenerator::get_call_target(const GDScriptCodeGenerator::Address &p_target, Variant::Type p_type) {
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if (p_target.mode == Address::NIL) {
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GDScriptDataType type;
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if (p_type != Variant::NIL) {
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@ -963,10 +968,9 @@ GDScriptCodeGenerator::Address GDScriptByteCodeGenerator::get_call_target(const
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type.builtin_type = p_type;
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}
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uint32_t addr = add_temporary(type);
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pop_temporary();
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return Address(Address::TEMPORARY, addr, type);
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return CallTarget(Address(Address::TEMPORARY, addr, type), true, this);
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} else {
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return p_target;
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return CallTarget(p_target, false, this);
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}
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}
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@ -976,9 +980,11 @@ void GDScriptByteCodeGenerator::write_call(const Address &p_target, const Addres
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append(p_arguments[i]);
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}
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append(p_base);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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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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@ -986,9 +992,11 @@ void GDScriptByteCodeGenerator::write_super_call(const Address &p_target, const
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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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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@ -997,9 +1005,11 @@ void GDScriptByteCodeGenerator::write_call_async(const Address &p_target, const
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append(p_arguments[i]);
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}
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append(p_base);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_call_gdscript_utility(const Address &p_target, const StringName &p_function, const Vector<Address> &p_arguments) {
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@ -1008,9 +1018,11 @@ void GDScriptByteCodeGenerator::write_call_gdscript_utility(const Address &p_tar
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(gds_function);
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ct.cleanup();
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#ifdef DEBUG_ENABLED
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add_debug_name(gds_utilities_names, get_gds_utility_pos(gds_function), p_function);
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#endif
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@ -1034,18 +1046,19 @@ void GDScriptByteCodeGenerator::write_call_utility(const Address &p_target, cons
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if (is_validated) {
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Variant::Type result_type = Variant::has_utility_function_return_value(p_function) ? Variant::get_utility_function_return_type(p_function) : Variant::NIL;
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Address target = get_call_target(p_target, result_type);
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Variant::Type temp_type = temporaries[target.address].type;
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CallTarget ct = get_call_target(p_target, result_type);
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Variant::Type temp_type = temporaries[ct.target.address].type;
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if (result_type != temp_type) {
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write_type_adjust(target, result_type);
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write_type_adjust(ct.target, result_type);
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}
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append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_UTILITY_VALIDATED, 1 + 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(target);
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append(ct.target);
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append(p_arguments.size());
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append(Variant::get_validated_utility_function(p_function));
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ct.cleanup();
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#ifdef DEBUG_ENABLED
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add_debug_name(utilities_names, get_utility_pos(Variant::get_validated_utility_function(p_function)), p_function);
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#endif
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@ -1054,9 +1067,11 @@ void GDScriptByteCodeGenerator::write_call_utility(const Address &p_target, cons
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function);
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ct.cleanup();
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}
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}
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@ -1085,10 +1100,12 @@ void GDScriptByteCodeGenerator::write_call_builtin_type(const Address &p_target,
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_type);
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append(p_method);
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append(p_arguments.size());
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ct.cleanup();
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} else {
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write_call(p_target, p_base, p_method, p_arguments);
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}
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@ -1096,10 +1113,10 @@ void GDScriptByteCodeGenerator::write_call_builtin_type(const Address &p_target,
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}
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Variant::Type result_type = Variant::get_builtin_method_return_type(p_type, p_method);
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Address target = get_call_target(p_target, result_type);
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Variant::Type temp_type = temporaries[target.address].type;
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CallTarget ct = get_call_target(p_target, result_type);
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Variant::Type temp_type = temporaries[ct.target.address].type;
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if (result_type != temp_type) {
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write_type_adjust(target, result_type);
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write_type_adjust(ct.target, result_type);
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}
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append_opcode_and_argcount(GDScriptFunction::OPCODE_CALL_BUILTIN_TYPE_VALIDATED, 2 + p_arguments.size());
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@ -1108,9 +1125,11 @@ void GDScriptByteCodeGenerator::write_call_builtin_type(const Address &p_target,
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append(p_arguments[i]);
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}
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append(p_base);
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append(target);
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append(ct.target);
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append(p_arguments.size());
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append(Variant::get_validated_builtin_method(p_type, p_method));
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ct.cleanup();
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#ifdef DEBUG_ENABLED
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add_debug_name(builtin_methods_names, get_builtin_method_pos(Variant::get_validated_builtin_method(p_type, p_method)), p_method);
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#endif
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@ -1135,9 +1154,11 @@ void GDScriptByteCodeGenerator::write_call_native_static(const Address &p_target
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(method);
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append(p_arguments.size());
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ct.cleanup();
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return;
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}
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}
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@ -1147,10 +1168,12 @@ void GDScriptByteCodeGenerator::write_call_method_bind(const Address &p_target,
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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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CallTarget ct = get_call_target(p_target);
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append(p_base);
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append(get_call_target(p_target));
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append(ct.target);
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append(p_arguments.size());
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append(p_method);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) {
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@ -1212,9 +1235,11 @@ void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, cons
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append(p_arguments[i]);
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}
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append(p_base);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_method);
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ct.cleanup();
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if (is_ptrcall) {
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alloc_ptrcall(p_arguments.size());
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}
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@ -1228,9 +1253,11 @@ void GDScriptByteCodeGenerator::write_call_self(const Address &p_target, const S
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append(p_arguments[i]);
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}
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append(GDScriptFunction::ADDR_TYPE_STACK << GDScriptFunction::ADDR_BITS);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) {
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@ -1239,9 +1266,11 @@ void GDScriptByteCodeGenerator::write_call_self_async(const Address &p_target, c
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append(p_arguments[i]);
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}
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append(GDScriptFunction::ADDR_SELF);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {
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@ -1250,9 +1279,11 @@ void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_targ
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append(p_arguments[i]);
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}
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append(p_base);
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_function_name);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector<Address> &p_captures, bool p_use_self) {
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@ -1261,9 +1292,11 @@ void GDScriptByteCodeGenerator::write_lambda(const Address &p_target, GDScriptFu
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append(p_captures[i]);
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}
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append(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_captures.size());
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append(p_function);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant::Type p_type, const Vector<Address> &p_arguments) {
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@ -1300,9 +1333,11 @@ void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(Variant::get_validated_constructor(p_type, valid_constructor));
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ct.cleanup();
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#ifdef DEBUG_ENABLED
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add_debug_name(constructors_names, get_constructor_pos(Variant::get_validated_constructor(p_type, valid_constructor)), Variant::get_type_name(p_type));
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#endif
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@ -1314,9 +1349,11 @@ void GDScriptByteCodeGenerator::write_construct(const Address &p_target, Variant
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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append(p_type);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) {
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@ -1324,8 +1361,10 @@ void GDScriptByteCodeGenerator::write_construct_array(const Address &p_target, c
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size());
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_construct_typed_array(const Address &p_target, const GDScriptDataType &p_element_type, const Vector<Address> &p_arguments) {
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@ -1333,11 +1372,13 @@ void GDScriptByteCodeGenerator::write_construct_typed_array(const Address &p_tar
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(get_constant_pos(p_element_type.script_type) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS));
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append(p_arguments.size());
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append(p_element_type.builtin_type);
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append(p_element_type.native_type);
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_target, const Vector<Address> &p_arguments) {
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@ -1345,8 +1386,10 @@ void GDScriptByteCodeGenerator::write_construct_dictionary(const Address &p_targ
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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(get_call_target(p_target));
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CallTarget ct = get_call_target(p_target);
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append(ct.target);
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append(p_arguments.size() / 2); // This is number of key-value pairs, so only half of actual arguments.
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ct.cleanup();
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}
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void GDScriptByteCodeGenerator::write_await(const Address &p_target, const Address &p_operand) {
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@ -48,6 +48,33 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
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const static int RESERVED_STACK = 3; // For self, class, and nil.
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struct CallTarget {
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Address target;
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bool is_new_temporary = false;
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GDScriptByteCodeGenerator *codegen = nullptr;
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#ifdef DEV_ENABLED
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bool cleaned = false;
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#endif
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void cleanup() {
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DEV_ASSERT(!cleaned);
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if (is_new_temporary) {
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codegen->pop_temporary();
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}
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#ifdef DEV_ENABLED
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cleaned = true;
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#endif
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}
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CallTarget(Address p_target, bool p_is_new_temporary, GDScriptByteCodeGenerator *p_codegen) :
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target(p_target),
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is_new_temporary(p_is_new_temporary),
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codegen(p_codegen) {}
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~CallTarget() { DEV_ASSERT(cleaned); }
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CallTarget(const CallTarget &) = delete;
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CallTarget &operator=(CallTarget &) = delete;
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};
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bool ended = false;
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GDScriptFunction *function = nullptr;
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bool debug_stack = false;
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@ -326,7 +353,7 @@ class GDScriptByteCodeGenerator : public GDScriptCodeGenerator {
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}
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}
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Address get_call_target(const Address &p_target, Variant::Type p_type = Variant::NIL);
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CallTarget get_call_target(const Address &p_target, Variant::Type p_type = Variant::NIL);
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int address_of(const Address &p_address) {
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switch (p_address.mode) {
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