From 01d13ab2c16aa69a6f81c10dfe4845a50c3e0c63 Mon Sep 17 00:00:00 2001 From: George Marques Date: Wed, 20 Apr 2022 14:22:22 -0300 Subject: GDScript: Allow using self in lambdas --- modules/gdscript/gdscript.h | 1 + modules/gdscript/gdscript_analyzer.cpp | 68 +++++++++++++++---- modules/gdscript/gdscript_analyzer.h | 3 +- modules/gdscript/gdscript_byte_codegen.cpp | 4 +- modules/gdscript/gdscript_byte_codegen.h | 2 +- modules/gdscript/gdscript_codegen.h | 2 +- modules/gdscript/gdscript_compiler.cpp | 2 +- modules/gdscript/gdscript_disassembler.cpp | 19 ++++++ modules/gdscript/gdscript_function.h | 1 + modules/gdscript/gdscript_lambda_callable.cpp | 78 ++++++++++++++++++++++ modules/gdscript/gdscript_lambda_callable.h | 25 +++++++ modules/gdscript/gdscript_parser.cpp | 3 - modules/gdscript/gdscript_parser.h | 2 + modules/gdscript/gdscript_vm.cpp | 36 ++++++++++ .../scripts/runtime/features/lambda_use_self.gd | 23 +++++++ .../scripts/runtime/features/lambda_use_self.out | 5 ++ 16 files changed, 251 insertions(+), 23 deletions(-) create mode 100644 modules/gdscript/tests/scripts/runtime/features/lambda_use_self.gd create mode 100644 modules/gdscript/tests/scripts/runtime/features/lambda_use_self.out (limited to 'modules') diff --git a/modules/gdscript/gdscript.h b/modules/gdscript/gdscript.h index 79171cac73..caca7d8ca5 100644 --- a/modules/gdscript/gdscript.h +++ b/modules/gdscript/gdscript.h @@ -262,6 +262,7 @@ class GDScriptInstance : public ScriptInstance { friend class GDScript; friend class GDScriptFunction; friend class GDScriptLambdaCallable; + friend class GDScriptLambdaSelfCallable; friend class GDScriptCompiler; friend struct GDScriptUtilityFunctionsDefinitions; diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index 01118a6b4f..152cb98ec4 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -2498,12 +2498,17 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a } if (is_self && parser->current_function != nullptr && parser->current_function->is_static && !is_static) { - push_error(vformat(R"*(Cannot call non-static function "%s()" from static function "%s()".)*", p_call->function_name, parser->current_function->identifier->name), p_call); + // Get the parent function above any lambda. + GDScriptParser::FunctionNode *parent_function = parser->current_function; + while (parent_function->source_lambda) { + parent_function = parent_function->source_lambda->parent_function; + } + push_error(vformat(R"*(Cannot call non-static function "%s()" from static function "%s()".)*", p_call->function_name, parent_function->identifier->name), p_call); } else if (!is_self && base_type.is_meta_type && !is_static) { base_type.is_meta_type = false; // For `to_string()`. push_error(vformat(R"*(Cannot call non-static function "%s()" on the class "%s" directly. Make an instance instead.)*", p_call->function_name, base_type.to_string()), p_call); - } else if (is_self && !is_static && !lambda_stack.is_empty()) { - push_error(vformat(R"*(Cannot call non-static function "%s()" from a lambda function.)*", p_call->function_name), p_call); + } else if (is_self && !is_static) { + mark_lambda_use_self(); } call_type = return_type; @@ -2636,10 +2641,10 @@ void GDScriptAnalyzer::reduce_get_node(GDScriptParser::GetNodeNode *p_get_node) if (!ClassDB::is_parent_class(parser->current_class->base_type.native_type, result.native_type)) { push_error(R"*(Cannot use shorthand "get_node()" notation ("$") on a class that isn't a node.)*", p_get_node); - } else if (!lambda_stack.is_empty()) { - push_error(R"*(Cannot use shorthand "get_node()" notation ("$") inside a lambda. Use a captured variable instead.)*", p_get_node); } + mark_lambda_use_self(); + p_get_node->set_datatype(result); } @@ -2854,21 +2859,25 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod MethodBind *getter = ClassDB::get_method(native, getter_name); if (getter != nullptr) { p_identifier->set_datatype(type_from_property(getter->get_return_info())); + p_identifier->source = GDScriptParser::IdentifierNode::INHERITED_VARIABLE; } return; } if (ClassDB::get_method_info(native, name, &method_info)) { // Method is callable. p_identifier->set_datatype(make_callable_type(method_info)); + p_identifier->source = GDScriptParser::IdentifierNode::INHERITED_VARIABLE; return; } if (ClassDB::get_signal(native, name, &method_info)) { // Signal is a type too. p_identifier->set_datatype(make_signal_type(method_info)); + p_identifier->source = GDScriptParser::IdentifierNode::INHERITED_VARIABLE; return; } if (ClassDB::has_enum(native, name)) { p_identifier->set_datatype(make_native_enum_type(native, name)); + p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_CONSTANT; return; } bool valid = false; @@ -2877,6 +2886,7 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod p_identifier->is_constant = true; p_identifier->reduced_value = int_constant; p_identifier->set_datatype(type_from_variant(int_constant, p_identifier)); + p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_CONSTANT; return; } } @@ -2927,7 +2937,11 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident p_identifier->reduced_value = p_identifier->constant_source->initializer->reduced_value; found_source = true; break; + case GDScriptParser::IdentifierNode::INHERITED_VARIABLE: + mark_lambda_use_self(); + break; case GDScriptParser::IdentifierNode::MEMBER_VARIABLE: + mark_lambda_use_self(); p_identifier->variable_source->usages++; [[fallthrough]]; case GDScriptParser::IdentifierNode::LOCAL_VARIABLE: @@ -2958,18 +2972,37 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident } if (found_source) { - // If the identifier is local, check if it's any kind of capture by comparing their source function. - // Only capture locals and members and enum values. Constants are still accessible from the lambda using the script reference. - if (p_identifier->source == GDScriptParser::IdentifierNode::UNDEFINED_SOURCE || p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_CONSTANT || lambda_stack.is_empty()) { - return; + if ((p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_VARIABLE || p_identifier->source == GDScriptParser::IdentifierNode::INHERITED_VARIABLE) && parser->current_function && parser->current_function->is_static) { + // Get the parent function above any lambda. + GDScriptParser::FunctionNode *parent_function = parser->current_function; + while (parent_function->source_lambda) { + parent_function = parent_function->source_lambda->parent_function; + } + push_error(vformat(R"*(Cannot access instance variable "%s" from the static function "%s()".)*", p_identifier->name, parent_function->identifier->name), p_identifier); } - GDScriptParser::FunctionNode *function_test = lambda_stack.back()->get()->function; - while (function_test != nullptr && function_test != p_identifier->source_function && function_test->source_lambda != nullptr && !function_test->source_lambda->captures_indices.has(p_identifier->name)) { - function_test->source_lambda->captures_indices[p_identifier->name] = function_test->source_lambda->captures.size(); - function_test->source_lambda->captures.push_back(p_identifier); - function_test = function_test->source_lambda->parent_function; + if (!lambda_stack.is_empty()) { + // If the identifier is a member variable (including the native class properties), we consider the lambda to be using `self`, so we keep a reference to the current instance. + if (p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_VARIABLE || p_identifier->source == GDScriptParser::IdentifierNode::INHERITED_VARIABLE) { + mark_lambda_use_self(); + return; // No need to capture. + } + // If the identifier is local, check if it's any kind of capture by comparing their source function. + // Only capture locals and enum values. Constants are still accessible from the lambda using the script reference. If not, this method is done. + if (p_identifier->source == GDScriptParser::IdentifierNode::UNDEFINED_SOURCE || p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_CONSTANT) { + return; + } + + GDScriptParser::FunctionNode *function_test = lambda_stack.back()->get()->function; + // Make sure we aren't capturing variable in the same lambda. + // This also add captures for nested lambdas. + while (function_test != nullptr && function_test != p_identifier->source_function && function_test->source_lambda != nullptr && !function_test->source_lambda->captures_indices.has(p_identifier->name)) { + function_test->source_lambda->captures_indices[p_identifier->name] = function_test->source_lambda->captures.size(); + function_test->source_lambda->captures.push_back(p_identifier); + function_test = function_test->source_lambda->parent_function; + } } + return; } @@ -3149,6 +3182,7 @@ void GDScriptAnalyzer::reduce_preload(GDScriptParser::PreloadNode *p_preload) { void GDScriptAnalyzer::reduce_self(GDScriptParser::SelfNode *p_self) { p_self->is_constant = false; p_self->set_datatype(type_from_metatype(parser->current_class->get_datatype())); + mark_lambda_use_self(); } void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscript) { @@ -4121,6 +4155,12 @@ void GDScriptAnalyzer::mark_node_unsafe(const GDScriptParser::Node *p_node) { #endif } +void GDScriptAnalyzer::mark_lambda_use_self() { + for (GDScriptParser::LambdaNode *lambda : lambda_stack) { + lambda->use_self = true; + } +} + bool GDScriptAnalyzer::class_exists(const StringName &p_class) const { return ClassDB::class_exists(p_class) && ClassDB::is_class_exposed(p_class); } diff --git a/modules/gdscript/gdscript_analyzer.h b/modules/gdscript/gdscript_analyzer.h index 7b8883e1d3..519e1975c4 100644 --- a/modules/gdscript/gdscript_analyzer.h +++ b/modules/gdscript/gdscript_analyzer.h @@ -42,7 +42,7 @@ class GDScriptAnalyzer { HashMap> depended_parsers; const GDScriptParser::EnumNode *current_enum = nullptr; - List lambda_stack; + List lambda_stack; // Tests for detecting invalid overloading of script members static _FORCE_INLINE_ bool has_member_name_conflict_in_script_class(const StringName &p_name, const GDScriptParser::ClassNode *p_current_class_node); @@ -115,6 +115,7 @@ class GDScriptAnalyzer { bool is_type_compatible(const GDScriptParser::DataType &p_target, const GDScriptParser::DataType &p_source, bool p_allow_implicit_conversion = false, const GDScriptParser::Node *p_source_node = nullptr); void push_error(const String &p_message, const GDScriptParser::Node *p_origin); void mark_node_unsafe(const GDScriptParser::Node *p_node); + void mark_lambda_use_self(); bool class_exists(const StringName &p_class) const; Ref get_parser_for(const String &p_path); #ifdef DEBUG_ENABLED diff --git a/modules/gdscript/gdscript_byte_codegen.cpp b/modules/gdscript/gdscript_byte_codegen.cpp index a7e25f5aab..e72069bcd5 100644 --- a/modules/gdscript/gdscript_byte_codegen.cpp +++ b/modules/gdscript/gdscript_byte_codegen.cpp @@ -1211,8 +1211,8 @@ void GDScriptByteCodeGenerator::write_call_script_function(const Address &p_targ append(p_function_name); } -void GDScriptByteCodeGenerator::write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures) { - append(GDScriptFunction::OPCODE_CREATE_LAMBDA, 1 + p_captures.size()); +void GDScriptByteCodeGenerator::write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures, bool p_use_self) { + append(p_use_self ? GDScriptFunction::OPCODE_CREATE_SELF_LAMBDA : GDScriptFunction::OPCODE_CREATE_LAMBDA, 1 + p_captures.size()); for (int i = 0; i < p_captures.size(); i++) { append(p_captures[i]); } diff --git a/modules/gdscript/gdscript_byte_codegen.h b/modules/gdscript/gdscript_byte_codegen.h index 222ae13390..0503f66161 100644 --- a/modules/gdscript/gdscript_byte_codegen.h +++ b/modules/gdscript/gdscript_byte_codegen.h @@ -470,7 +470,7 @@ public: virtual void write_call_self(const Address &p_target, const StringName &p_function_name, const Vector
&p_arguments) override; virtual void write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector
&p_arguments) override; virtual void write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector
&p_arguments) override; - virtual void write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures) override; + virtual void write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures, bool p_use_self) override; virtual void write_construct(const Address &p_target, Variant::Type p_type, const Vector
&p_arguments) override; virtual void write_construct_array(const Address &p_target, const Vector
&p_arguments) override; virtual void write_construct_typed_array(const Address &p_target, const GDScriptDataType &p_element_type, const Vector
&p_arguments) override; diff --git a/modules/gdscript/gdscript_codegen.h b/modules/gdscript/gdscript_codegen.h index 3d42ce06c0..326b66a295 100644 --- a/modules/gdscript/gdscript_codegen.h +++ b/modules/gdscript/gdscript_codegen.h @@ -131,7 +131,7 @@ public: virtual void write_call_self(const Address &p_target, const StringName &p_function_name, const Vector
&p_arguments) = 0; virtual void write_call_self_async(const Address &p_target, const StringName &p_function_name, const Vector
&p_arguments) = 0; virtual void write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector
&p_arguments) = 0; - virtual void write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures) = 0; + virtual void write_lambda(const Address &p_target, GDScriptFunction *p_function, const Vector
&p_captures, bool p_use_self) = 0; virtual void write_construct(const Address &p_target, Variant::Type p_type, const Vector
&p_arguments) = 0; virtual void write_construct_array(const Address &p_target, const Vector
&p_arguments) = 0; virtual void write_construct_typed_array(const Address &p_target, const GDScriptDataType &p_element_type, const Vector
&p_arguments) = 0; diff --git a/modules/gdscript/gdscript_compiler.cpp b/modules/gdscript/gdscript_compiler.cpp index 0138147fcc..225c2d0d45 100644 --- a/modules/gdscript/gdscript_compiler.cpp +++ b/modules/gdscript/gdscript_compiler.cpp @@ -1197,7 +1197,7 @@ GDScriptCodeGenerator::Address GDScriptCompiler::_parse_expression(CodeGen &code return GDScriptCodeGenerator::Address(); } - gen->write_lambda(result, function, captures); + gen->write_lambda(result, function, captures, lambda->use_self); for (int i = 0; i < captures.size(); i++) { if (captures[i].mode == GDScriptCodeGenerator::Address::TEMPORARY) { diff --git a/modules/gdscript/gdscript_disassembler.cpp b/modules/gdscript/gdscript_disassembler.cpp index 74090d0aa9..dc114f2eff 100644 --- a/modules/gdscript/gdscript_disassembler.cpp +++ b/modules/gdscript/gdscript_disassembler.cpp @@ -792,6 +792,25 @@ void GDScriptFunction::disassemble(const Vector &p_code_lines) const { incr = 3 + captures_count; } break; + case OPCODE_CREATE_SELF_LAMBDA: { + int captures_count = _code_ptr[ip + 1 + instr_var_args]; + GDScriptFunction *lambda = _lambdas_ptr[_code_ptr[ip + 2 + instr_var_args]]; + + text += DADDR(1 + captures_count); + text += "create self lambda from "; + text += lambda->name.operator String(); + text += "function, captures ("; + + for (int i = 0; i < captures_count; i++) { + if (i > 0) { + text += ", "; + } + text += DADDR(1 + i); + } + text += ")"; + + incr = 3 + captures_count; + } break; case OPCODE_JUMP: { text += "jump "; text += itos(_code_ptr[ip + 1]); diff --git a/modules/gdscript/gdscript_function.h b/modules/gdscript/gdscript_function.h index d07a167ca2..ba0d51c5cc 100644 --- a/modules/gdscript/gdscript_function.h +++ b/modules/gdscript/gdscript_function.h @@ -299,6 +299,7 @@ public: OPCODE_AWAIT, OPCODE_AWAIT_RESUME, OPCODE_CREATE_LAMBDA, + OPCODE_CREATE_SELF_LAMBDA, OPCODE_JUMP, OPCODE_JUMP_IF, OPCODE_JUMP_IF_NOT, diff --git a/modules/gdscript/gdscript_lambda_callable.cpp b/modules/gdscript/gdscript_lambda_callable.cpp index baf93e1098..c43fa12c8c 100644 --- a/modules/gdscript/gdscript_lambda_callable.cpp +++ b/modules/gdscript/gdscript_lambda_callable.cpp @@ -93,3 +93,81 @@ GDScriptLambdaCallable::GDScriptLambdaCallable(Ref p_script, GDScriptF h = (uint32_t)hash_djb2_one_64((uint64_t)this); } + +bool GDScriptLambdaSelfCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) { + // Lambda callables are only compared by reference. + return p_a == p_b; +} + +bool GDScriptLambdaSelfCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) { + // Lambda callables are only compared by reference. + return p_a < p_b; +} + +uint32_t GDScriptLambdaSelfCallable::hash() const { + return h; +} + +String GDScriptLambdaSelfCallable::get_as_text() const { + if (function->get_name() != StringName()) { + return function->get_name().operator String() + "(lambda)"; + } + return "(anonymous lambda)"; +} + +CallableCustom::CompareEqualFunc GDScriptLambdaSelfCallable::get_compare_equal_func() const { + return compare_equal; +} + +CallableCustom::CompareLessFunc GDScriptLambdaSelfCallable::get_compare_less_func() const { + return compare_less; +} + +ObjectID GDScriptLambdaSelfCallable::get_object() const { + return object->get_instance_id(); +} + +void GDScriptLambdaSelfCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const { +#ifdef DEBUG_ENABLED + if (object->get_script_instance() == nullptr || object->get_script_instance()->get_language() != GDScriptLanguage::get_singleton()) { + ERR_PRINT("Trying to call a lambda with an invalid instance."); + r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL; + return; + } +#endif + + int captures_amount = captures.size(); + + if (captures_amount > 0) { + Vector args; + args.resize(p_argcount + captures_amount); + for (int i = 0; i < captures_amount; i++) { + args.write[i] = &captures[i]; + } + for (int i = 0; i < p_argcount; i++) { + args.write[i + captures_amount] = p_arguments[i]; + } + + r_return_value = function->call(static_cast(object->get_script_instance()), args.ptrw(), args.size(), r_call_error); + r_call_error.argument -= captures_amount; + } else { + r_return_value = function->call(static_cast(object->get_script_instance()), p_arguments, p_argcount, r_call_error); + } +} + +GDScriptLambdaSelfCallable::GDScriptLambdaSelfCallable(Ref p_self, GDScriptFunction *p_function, const Vector &p_captures) { + reference = p_self; + object = p_self.ptr(); + function = p_function; + captures = p_captures; + + h = (uint32_t)hash_djb2_one_64((uint64_t)this); +} + +GDScriptLambdaSelfCallable::GDScriptLambdaSelfCallable(Object *p_self, GDScriptFunction *p_function, const Vector &p_captures) { + object = p_self; + function = p_function; + captures = p_captures; + + h = (uint32_t)hash_djb2_one_64((uint64_t)this); +} diff --git a/modules/gdscript/gdscript_lambda_callable.h b/modules/gdscript/gdscript_lambda_callable.h index f6a54a1a2f..248176e32c 100644 --- a/modules/gdscript/gdscript_lambda_callable.h +++ b/modules/gdscript/gdscript_lambda_callable.h @@ -62,4 +62,29 @@ public: virtual ~GDScriptLambdaCallable() = default; }; +// Lambda callable that references a particular object, so it can use `self` in the body. +class GDScriptLambdaSelfCallable : public CallableCustom { + GDScriptFunction *function = nullptr; + Ref reference; // For objects that are RefCounted, keep a reference. + Object *object = nullptr; // For non RefCounted objects, use a direct pointer. + uint32_t h; + + Vector captures; + + static bool compare_equal(const CallableCustom *p_a, const CallableCustom *p_b); + static bool compare_less(const CallableCustom *p_a, const CallableCustom *p_b); + +public: + uint32_t hash() const override; + String get_as_text() const override; + CompareEqualFunc get_compare_equal_func() const override; + CompareLessFunc get_compare_less_func() const override; + ObjectID get_object() const override; + void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const override; + + GDScriptLambdaSelfCallable(Ref p_self, GDScriptFunction *p_function, const Vector &p_captures); + GDScriptLambdaSelfCallable(Object *p_self, GDScriptFunction *p_function, const Vector &p_captures); + virtual ~GDScriptLambdaSelfCallable() = default; +}; + #endif // GDSCRIPT_LAMBDA_CALLABLE diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index 67d778f932..67f6b61f14 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -2200,9 +2200,6 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_self(ExpressionNode *p_pre if (current_function && current_function->is_static) { push_error(R"(Cannot use "self" inside a static function.)"); } - if (in_lambda) { - push_error(R"(Cannot use "self" inside a lambda.)"); - } SelfNode *self = alloc_node(); self->current_class = current_class; return self; diff --git a/modules/gdscript/gdscript_parser.h b/modules/gdscript/gdscript_parser.h index 487b7d0449..10474db02f 100644 --- a/modules/gdscript/gdscript_parser.h +++ b/modules/gdscript/gdscript_parser.h @@ -767,6 +767,7 @@ public: LOCAL_BIND, // Pattern bind. MEMBER_VARIABLE, MEMBER_CONSTANT, + INHERITED_VARIABLE, }; Source source = UNDEFINED_SOURCE; @@ -800,6 +801,7 @@ public: FunctionNode *parent_function = nullptr; Vector captures; Map captures_indices; + bool use_self = false; bool has_name() const { return function && function->identifier; diff --git a/modules/gdscript/gdscript_vm.cpp b/modules/gdscript/gdscript_vm.cpp index 2afb850c32..e28dd26c28 100644 --- a/modules/gdscript/gdscript_vm.cpp +++ b/modules/gdscript/gdscript_vm.cpp @@ -306,6 +306,7 @@ void (*type_init_function_table[])(Variant *) = { &&OPCODE_AWAIT, \ &&OPCODE_AWAIT_RESUME, \ &&OPCODE_CREATE_LAMBDA, \ + &&OPCODE_CREATE_SELF_LAMBDA, \ &&OPCODE_JUMP, \ &&OPCODE_JUMP_IF, \ &&OPCODE_JUMP_IF_NOT, \ @@ -2277,6 +2278,41 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a } DISPATCH_OPCODE; + OPCODE(OPCODE_CREATE_SELF_LAMBDA) { + CHECK_SPACE(2 + instr_arg_count); + + GD_ERR_BREAK(p_instance == nullptr); + + ip += instr_arg_count; + + int captures_count = _code_ptr[ip + 1]; + GD_ERR_BREAK(captures_count < 0); + + int lambda_index = _code_ptr[ip + 2]; + GD_ERR_BREAK(lambda_index < 0 || lambda_index >= _lambdas_count); + GDScriptFunction *lambda = _lambdas_ptr[lambda_index]; + + Vector captures; + captures.resize(captures_count); + for (int i = 0; i < captures_count; i++) { + GET_INSTRUCTION_ARG(arg, i); + captures.write[i] = *arg; + } + + GDScriptLambdaSelfCallable *callable; + if (Object::cast_to(p_instance->owner)) { + callable = memnew(GDScriptLambdaSelfCallable(Ref(Object::cast_to(p_instance->owner)), lambda, captures)); + } else { + callable = memnew(GDScriptLambdaSelfCallable(p_instance->owner, lambda, captures)); + } + + GET_INSTRUCTION_ARG(result, captures_count); + *result = Callable(callable); + + ip += 3; + } + DISPATCH_OPCODE; + OPCODE(OPCODE_JUMP) { CHECK_SPACE(2); int to = _code_ptr[ip + 1]; diff --git a/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.gd b/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.gd new file mode 100644 index 0000000000..3d063869ab --- /dev/null +++ b/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.gd @@ -0,0 +1,23 @@ +var member = "foo" + +func bar(): + print("bar") + +func test(): + var lambda1 = func(): + print(member) + lambda1.call() + + var lambda2 = func(): + var nested = func(): + print(member) + nested.call() + lambda2.call() + + var lambda3 = func(): + bar() + lambda3.call() + + var lambda4 = func(): + return self + print(lambda4.call() == self) diff --git a/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.out b/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.out new file mode 100644 index 0000000000..53d602b234 --- /dev/null +++ b/modules/gdscript/tests/scripts/runtime/features/lambda_use_self.out @@ -0,0 +1,5 @@ +GDTEST_OK +foo +foo +bar +true -- cgit v1.2.3