diff options
Diffstat (limited to 'modules/gdscript/gdscript_analyzer.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_analyzer.cpp | 763 |
1 files changed, 576 insertions, 187 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index ceb6d5a5f0..d346264933 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* 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 */ @@ -108,7 +108,7 @@ static GDScriptParser::DataType make_native_enum_type(const StringName &p_native GDScriptParser::DataType type; type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; type.kind = GDScriptParser::DataType::ENUM; - type.builtin_type = Variant::OBJECT; + type.builtin_type = Variant::INT; type.is_constant = true; type.is_meta_type = true; @@ -175,6 +175,11 @@ Error GDScriptAnalyzer::check_native_member_name_conflict(const StringName &p_me return ERR_PARSE_ERROR; } + if (GDScriptParser::get_builtin_type(p_member_name) != Variant::VARIANT_MAX) { + push_error(vformat(R"(The member "%s" cannot have the same name as a builtin type.)", p_member_name), p_member_node); + return ERR_PARSE_ERROR; + } + return OK; } @@ -191,7 +196,7 @@ Error GDScriptAnalyzer::check_class_member_name_conflict(const GDScriptParser::C } if (current_data_type && current_data_type->kind == GDScriptParser::DataType::Kind::NATIVE) { - if (current_data_type->native_type != StringName("")) { + if (current_data_type->native_type != StringName()) { return check_native_member_name_conflict( p_member_name, p_member_node, @@ -239,12 +244,13 @@ Error GDScriptAnalyzer::resolve_inheritance(GDScriptParser::ClassNode *p_class, class_type.kind = GDScriptParser::DataType::CLASS; class_type.class_type = p_class; class_type.script_path = parser->script_path; + class_type.builtin_type = Variant::OBJECT; p_class->set_datatype(class_type); if (!p_class->extends_used) { result.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; result.kind = GDScriptParser::DataType::NATIVE; - result.native_type = "RefCounted"; + result.native_type = SNAME("RefCounted"); } else { result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; @@ -271,6 +277,7 @@ Error GDScriptAnalyzer::resolve_inheritance(GDScriptParser::ClassNode *p_class, base = parser->get_parser()->head->get_datatype(); } else { if (p_class->extends.is_empty()) { + push_error("Could not resolve an empty super class path.", p_class); return ERR_PARSE_ERROR; } const StringName &name = p_class->extends[extends_index++]; @@ -432,7 +439,7 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type StringName first = p_type->type_chain[0]->name; - if (first == "Variant") { + if (first == SNAME("Variant")) { result.kind = GDScriptParser::DataType::VARIANT; if (p_type->type_chain.size() > 1) { push_error(R"("Variant" type don't contain nested types.)", p_type->type_chain[1]); @@ -441,9 +448,9 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type return result; } - if (first == "Object") { + if (first == SNAME("Object")) { result.kind = GDScriptParser::DataType::NATIVE; - result.native_type = "Object"; + result.native_type = SNAME("Object"); if (p_type->type_chain.size() > 1) { push_error(R"("Object" type don't contain nested types.)", p_type->type_chain[1]); return GDScriptParser::DataType(); @@ -464,6 +471,8 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type GDScriptParser::DataType container_type = resolve_datatype(p_type->container_type); if (container_type.kind != GDScriptParser::DataType::VARIANT) { + container_type.is_meta_type = false; + container_type.is_constant = false; result.set_container_element_type(container_type); } } @@ -476,7 +485,7 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type result = parser->head->get_datatype(); } else { Ref<GDScriptParserRef> ref = get_parser_for(ScriptServer::get_global_class_path(first)); - if (ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED) != OK) { + if (!ref.is_valid() || ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED) != OK) { push_error(vformat(R"(Could not parse global class "%s" from "%s".)", first, ScriptServer::get_global_class_path(first)), p_type); return GDScriptParser::DataType(); } @@ -638,41 +647,51 @@ void GDScriptAnalyzer::resolve_class_interface(GDScriptParser::ClassNode *p_clas } } - if (member.variable->datatype_specifier != nullptr) { - datatype = specified_type; + // Check if initializer is an unset identifier (ie: a variable within scope, but declared below) + if (member.variable->initializer && !member.variable->initializer->get_datatype().is_set()) { + if (member.variable->initializer->type == GDScriptParser::Node::IDENTIFIER) { + GDScriptParser::IdentifierNode *initializer_identifier = static_cast<GDScriptParser::IdentifierNode *>(member.variable->initializer); + push_error(vformat(R"(Identifier "%s" must be declared above current variable.)", initializer_identifier->name), member.variable->initializer); + } else { + ERR_PRINT("Parser bug (please report): tried to assign unset node without an identifier."); + } + } else { + if (member.variable->datatype_specifier != nullptr) { + datatype = specified_type; - if (member.variable->initializer != nullptr) { - if (!is_type_compatible(datatype, member.variable->initializer->get_datatype(), true)) { - // Try reverse test since it can be a masked subtype. - if (!is_type_compatible(member.variable->initializer->get_datatype(), datatype, true)) { - push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", member.variable->initializer->get_datatype().to_string(), datatype.to_string()), member.variable->initializer); - } else { - // TODO: Add warning. + if (member.variable->initializer != nullptr) { + if (!is_type_compatible(datatype, member.variable->initializer->get_datatype(), true, member.variable->initializer)) { + // Try reverse test since it can be a masked subtype. + if (!is_type_compatible(member.variable->initializer->get_datatype(), datatype, true, member.variable->initializer)) { + push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", member.variable->initializer->get_datatype().to_string(), datatype.to_string()), member.variable->initializer); + } else { + // TODO: Add warning. + mark_node_unsafe(member.variable->initializer); + member.variable->use_conversion_assign = true; + } + } else if (datatype.builtin_type == Variant::INT && member.variable->initializer->get_datatype().builtin_type == Variant::FLOAT) { +#ifdef DEBUG_ENABLED + parser->push_warning(member.variable->initializer, GDScriptWarning::NARROWING_CONVERSION); +#endif + } + if (member.variable->initializer->get_datatype().is_variant()) { + // TODO: Warn unsafe assign. mark_node_unsafe(member.variable->initializer); member.variable->use_conversion_assign = true; } - } else if (datatype.builtin_type == Variant::INT && member.variable->initializer->get_datatype().builtin_type == Variant::FLOAT) { -#ifdef DEBUG_ENABLED - parser->push_warning(member.variable->initializer, GDScriptWarning::NARROWING_CONVERSION); -#endif } - if (member.variable->initializer->get_datatype().is_variant()) { - // TODO: Warn unsafe assign. - mark_node_unsafe(member.variable->initializer); - member.variable->use_conversion_assign = true; + } else if (member.variable->infer_datatype) { + if (member.variable->initializer == nullptr) { + push_error(vformat(R"(Cannot infer the type of "%s" variable because there's no default value.)", member.variable->identifier->name), member.variable->identifier); + } else if (!datatype.is_set() || datatype.has_no_type()) { + push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value doesn't have a set type.)", member.variable->identifier->name), member.variable->initializer); + } else if (datatype.is_variant()) { + push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is Variant. Use explicit "Variant" type if this is intended.)", member.variable->identifier->name), member.variable->initializer); + } else if (datatype.builtin_type == Variant::NIL) { + push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is "null".)", member.variable->identifier->name), member.variable->initializer); } + datatype.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; } - } else if (member.variable->infer_datatype) { - if (member.variable->initializer == nullptr) { - push_error(vformat(R"(Cannot infer the type of "%s" variable because there's no default value.)", member.variable->identifier->name), member.variable->identifier); - } else if (!datatype.is_set() || datatype.has_no_type()) { - push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value doesn't have a set type.)", member.variable->identifier->name), member.variable->initializer); - } else if (datatype.is_variant()) { - push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is Variant. Use explicit "Variant" type if this is intended.)", member.variable->identifier->name), member.variable->initializer); - } else if (datatype.builtin_type == Variant::NIL) { - push_error(vformat(R"(Cannot infer the type of "%s" variable because the initial value is "null".)", member.variable->identifier->name), member.variable->initializer); - } - datatype.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; } datatype.is_constant = false; @@ -869,18 +888,45 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class) { GDScriptParser::ClassNode *previous_class = parser->current_class; parser->current_class = p_class; - // Do functions now. + // Do functions and properties now. for (int i = 0; i < p_class->members.size(); i++) { GDScriptParser::ClassNode::Member member = p_class->members[i]; - if (member.type != GDScriptParser::ClassNode::Member::FUNCTION) { - continue; - } + if (member.type == GDScriptParser::ClassNode::Member::FUNCTION) { + // Apply annotations. + for (GDScriptParser::AnnotationNode *&E : member.function->annotations) { + E->apply(parser, member.function); + } + +#ifdef DEBUG_ENABLED + Set<uint32_t> previously_ignored = parser->ignored_warning_codes; + for (uint32_t ignored_warning : member.function->ignored_warnings) { + parser->ignored_warning_codes.insert(ignored_warning); + } +#endif // DEBUG_ENABLED - resolve_function_body(member.function); + resolve_function_body(member.function); - // Apply annotations. - for (GDScriptParser::AnnotationNode *&E : member.function->annotations) { - E->apply(parser, member.function); +#ifdef DEBUG_ENABLED + parser->ignored_warning_codes = previously_ignored; +#endif // DEBUG_ENABLED + } else if (member.type == GDScriptParser::ClassNode::Member::VARIABLE && member.variable->property != GDScriptParser::VariableNode::PROP_NONE) { + if (member.variable->property == GDScriptParser::VariableNode::PROP_INLINE) { + if (member.variable->getter != nullptr) { + member.variable->getter->set_datatype(member.variable->datatype); + + resolve_function_body(member.variable->getter); + } + if (member.variable->setter != nullptr) { + resolve_function_signature(member.variable->setter); + + if (member.variable->setter->parameters.size() > 0) { + member.variable->setter->parameters[0]->datatype_specifier = member.variable->datatype_specifier; + member.variable->setter->parameters[0]->set_datatype(member.get_datatype()); + } + + resolve_function_body(member.variable->setter); + } + } } } @@ -896,17 +942,87 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class) { resolve_class_body(member.m_class); } - // Check unused variables. + // Check unused variables and datatypes of property getters and setters. for (int i = 0; i < p_class->members.size(); i++) { GDScriptParser::ClassNode::Member member = p_class->members[i]; - if (member.type != GDScriptParser::ClassNode::Member::VARIABLE) { - continue; - } + if (member.type == GDScriptParser::ClassNode::Member::VARIABLE) { #ifdef DEBUG_ENABLED - if (member.variable->usages == 0 && String(member.variable->identifier->name).begins_with("_")) { - parser->push_warning(member.variable->identifier, GDScriptWarning::UNUSED_PRIVATE_CLASS_VARIABLE, member.variable->identifier->name); - } + Set<uint32_t> previously_ignored = parser->ignored_warning_codes; + for (uint32_t ignored_warning : member.function->ignored_warnings) { + parser->ignored_warning_codes.insert(ignored_warning); + } + if (member.variable->usages == 0 && String(member.variable->identifier->name).begins_with("_")) { + parser->push_warning(member.variable->identifier, GDScriptWarning::UNUSED_PRIVATE_CLASS_VARIABLE, member.variable->identifier->name); + } #endif + + if (member.variable->property == GDScriptParser::VariableNode::PROP_SETGET) { + GDScriptParser::FunctionNode *getter_function = nullptr; + GDScriptParser::FunctionNode *setter_function = nullptr; + + bool has_valid_getter = false; + bool has_valid_setter = false; + + if (member.variable->getter_pointer != nullptr) { + if (p_class->has_function(member.variable->getter_pointer->name)) { + getter_function = p_class->get_member(member.variable->getter_pointer->name).function; + } + + if (getter_function == nullptr) { + push_error(vformat(R"(Getter "%s" not found.)", member.variable->getter_pointer->name), member.variable); + + } else if (getter_function->parameters.size() != 0 || getter_function->datatype.has_no_type()) { + push_error(vformat(R"(Function "%s" cannot be used as getter because of its signature.)", getter_function->identifier->name), member.variable); + + } else if (!is_type_compatible(member.variable->datatype, getter_function->datatype, true)) { + push_error(vformat(R"(Function with return type "%s" cannot be used as getter for a property of type "%s".)", getter_function->datatype.to_string(), member.variable->datatype.to_string()), member.variable); + + } else { + has_valid_getter = true; + +#ifdef DEBUG_ENABLED + if (member.variable->datatype.builtin_type == Variant::INT && getter_function->datatype.builtin_type == Variant::FLOAT) { + parser->push_warning(member.variable, GDScriptWarning::NARROWING_CONVERSION); + } +#endif + } + } + + if (member.variable->setter_pointer != nullptr) { + if (p_class->has_function(member.variable->setter_pointer->name)) { + setter_function = p_class->get_member(member.variable->setter_pointer->name).function; + } + + if (setter_function == nullptr) { + push_error(vformat(R"(Setter "%s" not found.)", member.variable->setter_pointer->name), member.variable); + + } else if (setter_function->parameters.size() != 1) { + push_error(vformat(R"(Function "%s" cannot be used as setter because of its signature.)", setter_function->identifier->name), member.variable); + + } else if (!is_type_compatible(member.variable->datatype, setter_function->parameters[0]->datatype, true)) { + push_error(vformat(R"(Function with argument type "%s" cannot be used as setter for a property of type "%s".)", setter_function->parameters[0]->datatype.to_string(), member.variable->datatype.to_string()), member.variable); + + } else { + has_valid_setter = true; + +#ifdef DEBUG_ENABLED + if (member.variable->datatype.builtin_type == Variant::FLOAT && setter_function->parameters[0]->datatype.builtin_type == Variant::INT) { + parser->push_warning(member.variable, GDScriptWarning::NARROWING_CONVERSION); + } +#endif + } + } + + if (member.variable->datatype.is_variant() && has_valid_getter && has_valid_setter) { + if (!is_type_compatible(getter_function->datatype, setter_function->parameters[0]->datatype, true)) { + push_error(vformat(R"(Getter with type "%s" cannot be used along with setter of type "%s".)", getter_function->datatype.to_string(), setter_function->parameters[0]->datatype.to_string()), member.variable); + } + } +#ifdef DEBUG_ENABLED + parser->ignored_warning_codes = previously_ignored; +#endif // DEBUG_ENABLED + } + } } } @@ -983,7 +1099,7 @@ void GDScriptAnalyzer::resolve_node(GDScriptParser::Node *p_node) { case GDScriptParser::Node::SUBSCRIPT: case GDScriptParser::Node::TERNARY_OPERATOR: case GDScriptParser::Node::UNARY_OPERATOR: - reduce_expression(static_cast<GDScriptParser::ExpressionNode *>(p_node)); + reduce_expression(static_cast<GDScriptParser::ExpressionNode *>(p_node), true); break; case GDScriptParser::Node::BREAK: case GDScriptParser::Node::BREAKPOINT: @@ -1009,6 +1125,10 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * GDScriptParser::FunctionNode *previous_function = parser->current_function; parser->current_function = p_function; +#ifdef TOOLS_ENABLED + int default_value_count = 0; +#endif // TOOLS_ENABLED + for (int i = 0; i < p_function->parameters.size(); i++) { resolve_parameter(p_function->parameters[i]); #ifdef DEBUG_ENABLED @@ -1018,23 +1138,81 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * is_shadowing(p_function->parameters[i]->identifier, "function parameter"); #endif // DEBUG_ENABLED #ifdef TOOLS_ENABLED - if (p_function->parameters[i]->default_value && p_function->parameters[i]->default_value->is_constant) { - p_function->default_arg_values.push_back(p_function->parameters[i]->default_value->reduced_value); + if (p_function->parameters[i]->default_value) { + default_value_count++; + + if (p_function->parameters[i]->default_value->is_constant) { + p_function->default_arg_values.push_back(p_function->parameters[i]->default_value->reduced_value); + } } #endif // TOOLS_ENABLED } - if (p_function->identifier->name == "_init") { + if (p_function->identifier->name == GDScriptLanguage::get_singleton()->strings._init) { // Constructor. GDScriptParser::DataType return_type = parser->current_class->get_datatype(); return_type.is_meta_type = false; p_function->set_datatype(return_type); if (p_function->return_type) { - push_error("Constructor cannot have an explicit return type.", p_function->return_type); + GDScriptParser::DataType declared_return = resolve_datatype(p_function->return_type); + if (declared_return.kind != GDScriptParser::DataType::BUILTIN || declared_return.builtin_type != Variant::NIL) { + push_error("Constructor cannot have an explicit return type.", p_function->return_type); + } } } else { GDScriptParser::DataType return_type = resolve_datatype(p_function->return_type); p_function->set_datatype(return_type); + +#ifdef TOOLS_ENABLED + // Check if the function signature matches the parent. If not it's an error since it breaks polymorphism. + // Not for the constructor which can vary in signature. + GDScriptParser::DataType base_type = parser->current_class->base_type; + GDScriptParser::DataType parent_return_type; + List<GDScriptParser::DataType> parameters_types; + int default_par_count = 0; + bool is_static = false; + bool is_vararg = false; + if (get_function_signature(p_function, false, base_type, p_function->identifier->name, parent_return_type, parameters_types, default_par_count, is_static, is_vararg)) { + bool valid = p_function->is_static == is_static; + valid = valid && parent_return_type == p_function->get_datatype(); + + int par_count_diff = p_function->parameters.size() - parameters_types.size(); + valid = valid && par_count_diff >= 0; + valid = valid && default_value_count >= default_par_count + par_count_diff; + + int i = 0; + for (const GDScriptParser::DataType &par_type : parameters_types) { + valid = valid && par_type == p_function->parameters[i++]->get_datatype(); + } + + if (!valid) { + // Compute parent signature as a string to show in the error message. + String parent_signature = parent_return_type.is_hard_type() ? parent_return_type.to_string() : "Variant"; + if (parent_signature == "null") { + parent_signature = "void"; + } + parent_signature += " " + p_function->identifier->name.operator String() + "("; + int j = 0; + for (const GDScriptParser::DataType &par_type : parameters_types) { + if (j > 0) { + parent_signature += ", "; + } + String parameter = par_type.to_string(); + if (parameter == "null") { + parameter = "Variant"; + } + parent_signature += parameter; + if (j == parameters_types.size() - default_par_count) { + parent_signature += " = default"; + } + + j++; + } + parent_signature += ")"; + push_error(vformat(R"(The function signature doesn't match the parent. Parent signature is "%s".)", parent_signature), p_function); + } + } +#endif // TOOLS_ENABLED } parser->current_function = previous_function; @@ -1096,7 +1274,23 @@ void GDScriptAnalyzer::decide_suite_type(GDScriptParser::Node *p_suite, GDScript void GDScriptAnalyzer::resolve_suite(GDScriptParser::SuiteNode *p_suite) { for (int i = 0; i < p_suite->statements.size(); i++) { GDScriptParser::Node *stmt = p_suite->statements[i]; + for (GDScriptParser::AnnotationNode *&annotation : stmt->annotations) { + annotation->apply(parser, stmt); + } + +#ifdef DEBUG_ENABLED + Set<uint32_t> previously_ignored = parser->ignored_warning_codes; + for (uint32_t ignored_warning : stmt->ignored_warnings) { + parser->ignored_warning_codes.insert(ignored_warning); + } +#endif // DEBUG_ENABLED + resolve_node(stmt); + +#ifdef DEBUG_ENABLED + parser->ignored_warning_codes = previously_ignored; +#endif // DEBUG_ENABLED + decide_suite_type(p_suite, stmt); } } @@ -1117,7 +1311,7 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { bool list_resolved = false; // Optimize constant range() call to not allocate an array. - // Use int, Vector2, Vector3 instead, which also can be used as range iterators. + // Use int, Vector2i, Vector3i instead, which also can be used as range iterators. if (p_for->list && p_for->list->type == GDScriptParser::Node::CALL) { GDScriptParser::CallNode *call = static_cast<GDScriptParser::CallNode *>(p_for->list); GDScriptParser::Node::Type callee_type = call->get_callee_type(); @@ -1193,7 +1387,7 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { variable_type.kind = GDScriptParser::DataType::BUILTIN; variable_type.builtin_type = Variant::INT; // Can this ever be a float or something else? p_for->variable->set_datatype(variable_type); - } else { + } else if (p_for->list) { resolve_node(p_for->list); if (p_for->list->datatype.has_container_element_type()) { variable_type = p_for->list->datatype.get_container_element_type(); @@ -1208,7 +1402,9 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { variable_type.kind = GDScriptParser::DataType::VARIANT; } } - p_for->variable->set_datatype(variable_type); + if (p_for->variable) { + p_for->variable->set_datatype(variable_type); + } resolve_suite(p_for->loop); p_for->set_datatype(p_for->loop->get_datatype()); @@ -1274,9 +1470,9 @@ void GDScriptAnalyzer::resolve_variable(GDScriptParser::VariableNode *p_variable type.is_meta_type = false; if (p_variable->initializer != nullptr) { - if (!is_type_compatible(type, p_variable->initializer->get_datatype(), true)) { + if (!is_type_compatible(type, p_variable->initializer->get_datatype(), true, p_variable->initializer)) { // Try reverse test since it can be a masked subtype. - if (!is_type_compatible(p_variable->initializer->get_datatype(), type, true)) { + if (!is_type_compatible(p_variable->initializer->get_datatype(), type, true, p_variable->initializer)) { push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", p_variable->initializer->get_datatype().to_string(), type.to_string()), p_variable->initializer); } else { // TODO: Add warning. @@ -1288,7 +1484,7 @@ void GDScriptAnalyzer::resolve_variable(GDScriptParser::VariableNode *p_variable parser->push_warning(p_variable->initializer, GDScriptWarning::NARROWING_CONVERSION); #endif } - if (p_variable->initializer->get_datatype().is_variant()) { + if (p_variable->initializer->get_datatype().is_variant() && !type.is_variant()) { // TODO: Warn unsafe assign. mark_node_unsafe(p_variable->initializer); p_variable->use_conversion_assign = true; @@ -1460,7 +1656,7 @@ void GDScriptAnalyzer::resolve_match_pattern(GDScriptParser::PatternNode *p_matc if (p_match_pattern->dictionary[i].key) { reduce_expression(p_match_pattern->dictionary[i].key); if (!p_match_pattern->dictionary[i].key->is_constant) { - push_error(R"(Expression in dictionary pattern key must be a constant.)", p_match_pattern->expression); + push_error(R"(Expression in dictionary pattern key must be a constant.)", p_match_pattern->dictionary[i].key); } } @@ -1518,12 +1714,20 @@ void GDScriptAnalyzer::resolve_parameter(GDScriptParser::ParameterNode *p_parame void GDScriptAnalyzer::resolve_return(GDScriptParser::ReturnNode *p_return) { GDScriptParser::DataType result; + GDScriptParser::DataType expected_type; + bool has_expected_type = false; + + if (parser->current_function != nullptr) { + expected_type = parser->current_function->get_datatype(); + has_expected_type = true; + } + if (p_return->return_value != nullptr) { reduce_expression(p_return->return_value); if (p_return->return_value->type == GDScriptParser::Node::ARRAY) { // Check if assigned value is an array literal, so we can make it a typed array too if appropriate. - if (parser->current_function->get_datatype().has_container_element_type() && p_return->return_value->type == GDScriptParser::Node::ARRAY) { - update_array_literal_element_type(parser->current_function->get_datatype(), static_cast<GDScriptParser::ArrayNode *>(p_return->return_value)); + if (has_expected_type && expected_type.has_container_element_type() && p_return->return_value->type == GDScriptParser::Node::ARRAY) { + update_array_literal_element_type(expected_type, static_cast<GDScriptParser::ArrayNode *>(p_return->return_value)); } } result = p_return->return_value->get_datatype(); @@ -1535,30 +1739,31 @@ void GDScriptAnalyzer::resolve_return(GDScriptParser::ReturnNode *p_return) { result.is_constant = true; } - GDScriptParser::DataType function_type = parser->current_function->get_datatype(); - function_type.is_meta_type = false; - if (function_type.is_hard_type()) { - if (!is_type_compatible(function_type, result)) { - // Try other way. Okay but not safe. - if (!is_type_compatible(result, function_type)) { - push_error(vformat(R"(Cannot return value of type "%s" because the function return type is "%s".)", result.to_string(), function_type.to_string()), p_return); - } else { - // TODO: Add warning. - mark_node_unsafe(p_return); - } + if (has_expected_type) { + expected_type.is_meta_type = false; + if (expected_type.is_hard_type()) { + if (!is_type_compatible(expected_type, result)) { + // Try other way. Okay but not safe. + if (!is_type_compatible(result, expected_type)) { + push_error(vformat(R"(Cannot return value of type "%s" because the function return type is "%s".)", result.to_string(), expected_type.to_string()), p_return); + } else { + // TODO: Add warning. + mark_node_unsafe(p_return); + } #ifdef DEBUG_ENABLED - } else if (function_type.builtin_type == Variant::INT && result.builtin_type == Variant::FLOAT) { - parser->push_warning(p_return, GDScriptWarning::NARROWING_CONVERSION); - } else if (result.is_variant()) { - mark_node_unsafe(p_return); + } else if (expected_type.builtin_type == Variant::INT && result.builtin_type == Variant::FLOAT) { + parser->push_warning(p_return, GDScriptWarning::NARROWING_CONVERSION); + } else if (result.is_variant()) { + mark_node_unsafe(p_return); #endif + } } } p_return->set_datatype(result); } -void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expression) { +void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expression, bool p_is_root) { // This one makes some magic happen. if (p_expression == nullptr) { @@ -1586,7 +1791,7 @@ void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expre reduce_binary_op(static_cast<GDScriptParser::BinaryOpNode *>(p_expression)); break; case GDScriptParser::Node::CALL: - reduce_call(static_cast<GDScriptParser::CallNode *>(p_expression)); + reduce_call(static_cast<GDScriptParser::CallNode *>(p_expression), p_is_root); break; case GDScriptParser::Node::CAST: reduce_cast(static_cast<GDScriptParser::CastNode *>(p_expression)); @@ -1702,6 +1907,7 @@ void GDScriptAnalyzer::update_array_literal_element_type(const GDScriptParser::D } } if (all_same_type) { + element_type.is_constant = false; array_type.set_container_element_type(element_type); } else if (all_have_type) { push_error(vformat(R"(Variant array is not compatible with an array of type "%s".)", p_base_type.get_container_element_type().to_string()), p_array_literal); @@ -1732,19 +1938,20 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig push_error("Cannot assign a new value to a constant.", p_assignment->assignee); } - if (!assignee_type.is_variant() && !assigned_value_type.is_variant()) { - bool compatible = true; - GDScriptParser::DataType op_type = assigned_value_type; - if (p_assignment->operation != GDScriptParser::AssignmentNode::OP_NONE) { - op_type = get_operation_type(p_assignment->variant_op, assignee_type, assigned_value_type, compatible, p_assignment->assigned_value); - } + bool compatible = true; + GDScriptParser::DataType op_type = assigned_value_type; + if (p_assignment->operation != GDScriptParser::AssignmentNode::OP_NONE) { + op_type = get_operation_type(p_assignment->variant_op, assignee_type, assigned_value_type, compatible, p_assignment->assigned_value); + } + p_assignment->set_datatype(op_type); + if (!assignee_type.is_variant() && assigned_value_type.is_hard_type()) { if (compatible) { - compatible = is_type_compatible(assignee_type, op_type, true); + compatible = is_type_compatible(assignee_type, op_type, true, p_assignment->assigned_value); if (!compatible) { if (assignee_type.is_hard_type()) { // Try reverse test since it can be a masked subtype. - if (!is_type_compatible(op_type, assignee_type, true)) { + if (!is_type_compatible(op_type, assignee_type, true, p_assignment->assigned_value)) { push_error(vformat(R"(Cannot assign a value of type "%s" to a target of type "%s".)", assigned_value_type.to_string(), assignee_type.to_string()), p_assignment->assigned_value); } else { // TODO: Add warning. @@ -1754,7 +1961,6 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig } else { // TODO: Warning in this case. mark_node_unsafe(p_assignment); - p_assignment->use_conversion_assign = true; } } } else { @@ -1764,7 +1970,7 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig if (assignee_type.has_no_type() || assigned_value_type.is_variant()) { mark_node_unsafe(p_assignment); - if (assignee_type.is_hard_type()) { + if (assignee_type.is_hard_type() && !assignee_type.is_variant()) { p_assignment->use_conversion_assign = true; } } @@ -1785,27 +1991,24 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig case GDScriptParser::IdentifierNode::FUNCTION_PARAMETER: { GDScriptParser::DataType id_type = identifier->parameter_source->get_datatype(); if (!id_type.is_hard_type()) { - id_type = assigned_value_type; - id_type.type_source = GDScriptParser::DataType::INFERRED; - id_type.is_constant = false; + id_type.kind = GDScriptParser::DataType::VARIANT; + id_type.type_source = GDScriptParser::DataType::UNDETECTED; identifier->parameter_source->set_datatype(id_type); } } break; case GDScriptParser::IdentifierNode::LOCAL_VARIABLE: { GDScriptParser::DataType id_type = identifier->variable_source->get_datatype(); if (!id_type.is_hard_type()) { - id_type = assigned_value_type; - id_type.type_source = GDScriptParser::DataType::INFERRED; - id_type.is_constant = false; + id_type.kind = GDScriptParser::DataType::VARIANT; + id_type.type_source = GDScriptParser::DataType::UNDETECTED; identifier->variable_source->set_datatype(id_type); } } break; case GDScriptParser::IdentifierNode::LOCAL_ITERATOR: { GDScriptParser::DataType id_type = identifier->bind_source->get_datatype(); if (!id_type.is_hard_type()) { - id_type = assigned_value_type; - id_type.type_source = GDScriptParser::DataType::INFERRED; - id_type.is_constant = false; + id_type.kind = GDScriptParser::DataType::VARIANT; + id_type.type_source = GDScriptParser::DataType::UNDETECTED; identifier->variable_source->set_datatype(id_type); } } break; @@ -1831,16 +2034,25 @@ void GDScriptAnalyzer::reduce_await(GDScriptParser::AwaitNode *p_await) { p_await->set_datatype(await_type); return; } + + GDScriptParser::DataType awaiting_type; + if (p_await->to_await->type == GDScriptParser::Node::CALL) { reduce_call(static_cast<GDScriptParser::CallNode *>(p_await->to_await), true); + awaiting_type = p_await->to_await->get_datatype(); } else { reduce_expression(p_await->to_await); } - p_await->is_constant = p_await->to_await->is_constant; - p_await->reduced_value = p_await->to_await->reduced_value; + if (p_await->to_await->is_constant) { + p_await->is_constant = p_await->to_await->is_constant; + p_await->reduced_value = p_await->to_await->reduced_value; - GDScriptParser::DataType awaiting_type = p_await->to_await->get_datatype(); + awaiting_type = p_await->to_await->get_datatype(); + } else { + awaiting_type.kind = GDScriptParser::DataType::VARIANT; + awaiting_type.type_source = GDScriptParser::DataType::UNDETECTED; + } p_await->set_datatype(awaiting_type); @@ -1960,7 +2172,7 @@ void GDScriptAnalyzer::reduce_binary_op(GDScriptParser::BinaryOpNode *p_binary_o p_binary_op->set_datatype(result); } -void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_await) { +void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_await, bool p_is_root) { bool all_is_constant = true; Map<int, GDScriptParser::ArrayNode *> arrays; // For array literal to potentially type when passing. for (int i = 0; i < p_call->arguments.size(); i++) { @@ -2091,7 +2303,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa break; #ifdef DEBUG_ENABLED } else { - if (par_type.builtin_type == Variant::INT && p_call->arguments[i]->get_datatype().builtin_type == Variant::FLOAT) { + if (par_type.builtin_type == Variant::INT && p_call->arguments[i]->get_datatype().builtin_type == Variant::FLOAT && builtin_type != Variant::INT) { parser->push_warning(p_call, GDScriptWarning::NARROWING_CONVERSION, p_call->function_name); } #endif @@ -2214,6 +2426,10 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa base_type = parser->current_class->base_type; base_type.is_meta_type = false; is_self = true; + + if (p_call->callee == nullptr && !lambda_stack.is_empty()) { + push_error("Cannot use `super()` inside a lambda.", p_call); + } } else if (callee_type == GDScriptParser::Node::IDENTIFIER) { base_type = parser->current_class->get_datatype(); base_type.is_meta_type = false; @@ -2264,29 +2480,42 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa GDScriptParser::DataType return_type; List<GDScriptParser::DataType> par_types; - if (get_function_signature(p_call, base_type, p_call->function_name, return_type, par_types, default_arg_count, is_static, is_vararg)) { + bool is_constructor = (base_type.is_meta_type || (p_call->callee && p_call->callee->type == GDScriptParser::Node::IDENTIFIER)) && p_call->function_name == SNAME("new"); + + if (get_function_signature(p_call, is_constructor, base_type, p_call->function_name, return_type, par_types, default_arg_count, is_static, is_vararg)) { // If the function require typed arrays we must make literals be typed. - for (Map<int, GDScriptParser::ArrayNode *>::Element *E = arrays.front(); E; E = E->next()) { - int index = E->key(); + for (const KeyValue<int, GDScriptParser::ArrayNode *> &E : arrays) { + int index = E.key; if (index < par_types.size() && par_types[index].has_container_element_type()) { - update_array_literal_element_type(par_types[index], E->get()); + update_array_literal_element_type(par_types[index], E.value); } } validate_call_arg(par_types, default_arg_count, is_vararg, p_call); + if (base_type.kind == GDScriptParser::DataType::ENUM && base_type.is_meta_type) { + // Enum type is treated as a dictionary value for function calls. + base_type.is_meta_type = false; + } + 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->callee); + // 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->callee); - } 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->callee); + 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) { + mark_lambda_use_self(); } call_type = return_type; } else { - // Check if the name exists as something else. bool found = false; + + // Check if the name exists as something else. if (!p_call->is_super && callee_type != GDScriptParser::Node::NONE) { GDScriptParser::IdentifierNode *callee_id; if (callee_type == GDScriptParser::Node::IDENTIFIER) { @@ -2316,11 +2545,13 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa if (!found && (is_self || (base_type.is_hard_type() && base_type.kind == GDScriptParser::DataType::BUILTIN))) { String base_name = is_self && !p_call->is_super ? "self" : base_type.to_string(); push_error(vformat(R"*(Function "%s()" not found in base %s.)*", p_call->function_name, base_name), p_call->is_super ? p_call : p_call->callee); + } else if (!found && (!p_call->is_super && base_type.is_hard_type() && base_type.kind == GDScriptParser::DataType::NATIVE && base_type.is_meta_type)) { + push_error(vformat(R"*(Static function "%s()" not found in base "%s".)*", p_call->function_name, base_type.native_type.operator String()), p_call); } } - if (call_type.is_coroutine && !is_await) { - push_error(vformat(R"*(Function "%s()" is a coroutine, so it must be called with "await".)*", p_call->function_name), p_call->callee); + if (call_type.is_coroutine && !p_is_await && !p_is_root) { + push_error(vformat(R"*(Function "%s()" is a coroutine, so it must be called with "await".)*", p_call->function_name), p_call); } p_call->set_datatype(call_type); @@ -2332,17 +2563,24 @@ void GDScriptAnalyzer::reduce_cast(GDScriptParser::CastNode *p_cast) { GDScriptParser::DataType cast_type = resolve_datatype(p_cast->cast_type); if (!cast_type.is_set()) { + mark_node_unsafe(p_cast); return; } - cast_type.is_meta_type = false; // The casted value won't be a type name. + cast_type = type_from_metatype(cast_type); // The casted value won't be a type name. p_cast->set_datatype(cast_type); if (!cast_type.is_variant()) { GDScriptParser::DataType op_type = p_cast->operand->get_datatype(); if (!op_type.is_variant()) { bool valid = false; - if (op_type.kind == GDScriptParser::DataType::BUILTIN && cast_type.kind == GDScriptParser::DataType::BUILTIN) { + if (op_type.kind == GDScriptParser::DataType::ENUM && cast_type.kind == GDScriptParser::DataType::ENUM) { + // Enum types are compatible between each other, so it's a safe cast. + valid = true; + } else if (op_type.kind == GDScriptParser::DataType::BUILTIN && op_type.builtin_type == Variant::INT && cast_type.kind == GDScriptParser::DataType::ENUM) { + // Convertint int to enum is always valid. + valid = true; + } else if (op_type.kind == GDScriptParser::DataType::BUILTIN && cast_type.kind == GDScriptParser::DataType::BUILTIN) { valid = Variant::can_convert(op_type.builtin_type, cast_type.builtin_type); } else if (op_type.kind != GDScriptParser::DataType::BUILTIN && cast_type.kind != GDScriptParser::DataType::BUILTIN) { valid = is_type_compatible(cast_type, op_type) || is_type_compatible(op_type, cast_type); @@ -2398,31 +2636,37 @@ void GDScriptAnalyzer::reduce_get_node(GDScriptParser::GetNodeNode *p_get_node) GDScriptParser::DataType result; result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; result.kind = GDScriptParser::DataType::NATIVE; - result.native_type = "Node"; + result.native_type = SNAME("Node"); result.builtin_type = Variant::OBJECT; 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); } GDScriptParser::DataType GDScriptAnalyzer::make_global_class_meta_type(const StringName &p_class_name, const GDScriptParser::Node *p_source) { + GDScriptParser::DataType type; + Ref<GDScriptParserRef> ref = get_parser_for(ScriptServer::get_global_class_path(p_class_name)); - Error err = ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED); + if (ref.is_null()) { + push_error(vformat(R"(Could not find script for class "%s".)", p_class_name), p_source); + type.type_source = GDScriptParser::DataType::UNDETECTED; + type.kind = GDScriptParser::DataType::VARIANT; + return type; + } + Error err = ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED); if (err) { push_error(vformat(R"(Could not resolve class "%s", because of a parser error.)", p_class_name), p_source); - GDScriptParser::DataType type; type.type_source = GDScriptParser::DataType::UNDETECTED; type.kind = GDScriptParser::DataType::VARIANT; return type; } - GDScriptParser::DataType type; type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; type.kind = GDScriptParser::DataType::CLASS; type.builtin_type = Variant::OBJECT; @@ -2444,6 +2688,34 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod const StringName &name = p_identifier->name; + if (base.kind == GDScriptParser::DataType::ENUM) { + if (base.is_meta_type) { + if (base.enum_values.has(name)) { + p_identifier->is_constant = true; + p_identifier->reduced_value = base.enum_values[name]; + + GDScriptParser::DataType result; + result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; + result.kind = GDScriptParser::DataType::ENUM; + result.is_constant = true; + result.builtin_type = Variant::INT; + result.native_type = base.native_type; + result.enum_type = base.enum_type; + p_identifier->set_datatype(result); + return; + } else { + // Consider as a Dictionary, so it can be anything. + // This will be evaluated in the next if block. + base.kind = GDScriptParser::DataType::BUILTIN; + base.builtin_type = Variant::DICTIONARY; + base.is_meta_type = false; + } + } else { + push_error(R"(Cannot get property from enum value.)", p_identifier); + return; + } + } + if (base.kind == GDScriptParser::DataType::BUILTIN) { if (base.is_meta_type) { bool valid = true; @@ -2490,28 +2762,6 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod return; } - if (base.kind == GDScriptParser::DataType::ENUM) { - if (base.is_meta_type) { - if (base.enum_values.has(name)) { - p_identifier->is_constant = true; - p_identifier->reduced_value = base.enum_values[name]; - - GDScriptParser::DataType result; - result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; - result.kind = GDScriptParser::DataType::ENUM_VALUE; - result.builtin_type = base.builtin_type; - result.native_type = base.native_type; - result.enum_type = name; - p_identifier->set_datatype(result); - } else { - push_error(vformat(R"(Cannot find value "%s" in "%s".)", name, base.to_string()), p_identifier); - } - } else { - push_error(R"(Cannot get property from enum value.)", p_identifier); - } - return; - } - GDScriptParser::ClassNode *base_class = base.class_type; // TODO: Switch current class/function/suite here to avoid misrepresenting identifiers (in recursive reduce calls). @@ -2584,6 +2834,11 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod p_identifier->is_constant = false; return; } break; + case GDScriptParser::ClassNode::Member::CLASS: { + resolve_class_interface(member.m_class); + p_identifier->set_datatype(member.m_class->get_datatype()); + return; + } break; default: break; } @@ -2598,24 +2853,31 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod const StringName &native = base.native_type; if (class_exists(native)) { - PropertyInfo prop_info; MethodInfo method_info; - if (ClassDB::get_property_info(native, name, &prop_info)) { - p_identifier->set_datatype(type_from_property(prop_info)); + if (ClassDB::has_property(native, name)) { + StringName getter_name = ClassDB::get_property_getter(native, name); + 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; @@ -2624,6 +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; } } @@ -2639,7 +2902,7 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident if (element.identifier->name == p_identifier->name) { GDScriptParser::DataType type; type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; - type.kind = element.parent_enum->identifier ? GDScriptParser::DataType::ENUM_VALUE : GDScriptParser::DataType::BUILTIN; + type.kind = element.parent_enum->identifier ? GDScriptParser::DataType::ENUM : GDScriptParser::DataType::BUILTIN; type.builtin_type = Variant::INT; type.is_constant = true; if (element.parent_enum->identifier) { @@ -2674,7 +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: @@ -2705,18 +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; } @@ -2883,7 +3169,7 @@ void GDScriptAnalyzer::reduce_preload(GDScriptParser::PreloadNode *p_preload) { // TODO: Don't load if validating: use completion cache. p_preload->resource = ResourceLoader::load(p_preload->resolved_path); if (p_preload->resource.is_null()) { - push_error(vformat(R"(Could not p_preload resource file "%s".)", p_preload->resolved_path), p_preload->path); + push_error(vformat(R"(Could not preload resource file "%s".)", p_preload->resolved_path), p_preload->path); } } } @@ -2896,6 +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) { @@ -2906,6 +3193,12 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri reduce_identifier(static_cast<GDScriptParser::IdentifierNode *>(p_subscript->base), true); } else { reduce_expression(p_subscript->base); + + if (p_subscript->base->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(p_subscript->base)); + } else if (p_subscript->base->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(p_subscript->base)); + } } GDScriptParser::DataType result_type; @@ -2929,7 +3222,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri } else { GDScriptParser::DataType base_type = p_subscript->base->get_datatype(); - if (base_type.is_variant()) { + if (base_type.is_variant() || !base_type.is_hard_type()) { result_type.kind = GDScriptParser::DataType::VARIANT; mark_node_unsafe(p_subscript); } else { @@ -3052,6 +3345,9 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri result_type.kind = GDScriptParser::DataType::BUILTIN; result_type.type_source = base_type.is_hard_type() ? GDScriptParser::DataType::ANNOTATED_INFERRED : GDScriptParser::DataType::INFERRED; + if (base_type.kind != GDScriptParser::DataType::BUILTIN) { + base_type.builtin_type = Variant::OBJECT; + } switch (base_type.builtin_type) { // Can't index at all. case Variant::RID: @@ -3112,6 +3408,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri case Variant::PLANE: case Variant::COLOR: case Variant::DICTIONARY: + case Variant::OBJECT: result_type.kind = GDScriptParser::DataType::VARIANT; result_type.type_source = GDScriptParser::DataType::UNDETECTED; break; @@ -3126,7 +3423,6 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri } break; // Here for completeness. - case Variant::OBJECT: case Variant::VARIANT_MAX: break; } @@ -3220,6 +3516,13 @@ void GDScriptAnalyzer::const_fold_array(GDScriptParser::ArrayNode *p_array) { for (int i = 0; i < p_array->elements.size(); i++) { GDScriptParser::ExpressionNode *element = p_array->elements[i]; + + if (element->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(element)); + } else if (element->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(element)); + } + all_is_constant = all_is_constant && element->is_constant; if (!all_is_constant) { return; @@ -3240,6 +3543,13 @@ void GDScriptAnalyzer::const_fold_dictionary(GDScriptParser::DictionaryNode *p_d for (int i = 0; i < p_dictionary->elements.size(); i++) { const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i]; + + if (element.value->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(element.value)); + } else if (element.value->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(element.value)); + } + all_is_constant = all_is_constant && element.key->is_constant && element.value->is_constant; if (!all_is_constant) { return; @@ -3293,7 +3603,13 @@ GDScriptParser::DataType GDScriptAnalyzer::type_from_variant(const Variant &p_va current = current->_owner; } - Ref<GDScriptParserRef> ref = get_parser_for(current->path); + Ref<GDScriptParserRef> ref = get_parser_for(current->get_path()); + if (ref.is_null()) { + push_error("Could not find script in path.", p_source); + GDScriptParser::DataType error_type; + error_type.kind = GDScriptParser::DataType::VARIANT; + return error_type; + } ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED); GDScriptParser::ClassNode *found = ref->get_parser()->head; @@ -3330,6 +3646,9 @@ GDScriptParser::DataType GDScriptAnalyzer::type_from_metatype(const GDScriptPars GDScriptParser::DataType result = p_meta_type; result.is_meta_type = false; result.is_constant = false; + if (p_meta_type.kind == GDScriptParser::DataType::ENUM) { + result.builtin_type = Variant::INT; + } return result; } @@ -3344,7 +3663,7 @@ GDScriptParser::DataType GDScriptAnalyzer::type_from_property(const PropertyInfo result.builtin_type = p_property.type; if (p_property.type == Variant::OBJECT) { result.kind = GDScriptParser::DataType::NATIVE; - result.native_type = p_property.class_name == StringName() ? "Object" : p_property.class_name; + result.native_type = p_property.class_name == StringName() ? SNAME("Object") : p_property.class_name; } else { result.kind = GDScriptParser::DataType::BUILTIN; result.builtin_type = p_property.type; @@ -3373,18 +3692,31 @@ GDScriptParser::DataType GDScriptAnalyzer::type_from_property(const PropertyInfo } else { ERR_FAIL_V_MSG(result, "Could not find element type from property hint of a typed array."); } + elem_type.is_constant = false; result.set_container_element_type(elem_type); } } return result; } -bool GDScriptAnalyzer::get_function_signature(GDScriptParser::CallNode *p_source, GDScriptParser::DataType p_base_type, const StringName &p_function, GDScriptParser::DataType &r_return_type, List<GDScriptParser::DataType> &r_par_types, int &r_default_arg_count, bool &r_static, bool &r_vararg) { +bool GDScriptAnalyzer::get_function_signature(GDScriptParser::Node *p_source, bool p_is_constructor, GDScriptParser::DataType p_base_type, const StringName &p_function, GDScriptParser::DataType &r_return_type, List<GDScriptParser::DataType> &r_par_types, int &r_default_arg_count, bool &r_static, bool &r_vararg) { r_static = false; r_vararg = false; r_default_arg_count = 0; StringName function_name = p_function; + if (p_base_type.kind == GDScriptParser::DataType::ENUM) { + if (p_base_type.is_meta_type) { + // Enum type can be treated as a dictionary value. + p_base_type.kind = GDScriptParser::DataType::BUILTIN; + p_base_type.builtin_type = Variant::DICTIONARY; + p_base_type.is_meta_type = false; + } else { + push_error("Cannot call function on enum value.", p_source); + return false; + } + } + if (p_base_type.kind == GDScriptParser::DataType::BUILTIN) { // Construct a base type to get methods. Callable::CallError err; @@ -3407,8 +3739,7 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::CallNode *p_source return false; } - bool is_constructor = (p_base_type.is_meta_type || (p_source->callee && p_source->callee->type == GDScriptParser::Node::IDENTIFIER)) && p_function == StaticCString::create("new"); - if (is_constructor) { + if (p_is_constructor) { function_name = "_init"; r_static = true; } @@ -3429,7 +3760,7 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::CallNode *p_source } if (found_function != nullptr) { - r_static = is_constructor || found_function->is_static; + r_static = p_is_constructor || found_function->is_static; for (int i = 0; i < found_function->parameters.size(); i++) { r_par_types.push_back(found_function->parameters[i]->get_datatype()); if (found_function->parameters[i]->default_value != nullptr) { @@ -3455,7 +3786,7 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::CallNode *p_source } // If the base is a script, it might be trying to access members of the Script class itself. - if (p_base_type.is_meta_type && !is_constructor && (p_base_type.kind == GDScriptParser::DataType::SCRIPT || p_base_type.kind == GDScriptParser::DataType::CLASS)) { + if (p_base_type.is_meta_type && !p_is_constructor && (p_base_type.kind == GDScriptParser::DataType::SCRIPT || p_base_type.kind == GDScriptParser::DataType::CLASS)) { MethodInfo info; StringName script_class = p_base_type.kind == GDScriptParser::DataType::SCRIPT ? p_base_type.script_type->get_class_name() : StringName(GDScript::get_class_static()); @@ -3475,7 +3806,7 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::CallNode *p_source } #endif - if (is_constructor) { + if (p_is_constructor) { // Native types always have a default constructor. r_return_type = p_base_type; r_return_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; @@ -3499,6 +3830,7 @@ bool GDScriptAnalyzer::function_signature_from_info(const MethodInfo &p_info, GD r_return_type = type_from_property(p_info.return_val); r_default_arg_count = p_info.default_arguments.size(); r_vararg = (p_info.flags & METHOD_FLAG_VARARG) != 0; + r_static = (p_info.flags & METHOD_FLAG_STATIC) != 0; for (const PropertyInfo &E : p_info.arguments) { r_par_types.push_back(type_from_property(E)); @@ -3563,9 +3895,27 @@ bool GDScriptAnalyzer::validate_call_arg(const List<GDScriptParser::DataType> &p bool GDScriptAnalyzer::is_shadowing(GDScriptParser::IdentifierNode *p_local, const String &p_context) { const StringName &name = p_local->name; GDScriptParser::DataType base = parser->current_class->get_datatype(); - GDScriptParser::ClassNode *base_class = base.class_type; + { + List<MethodInfo> gdscript_funcs; + GDScriptLanguage::get_singleton()->get_public_functions(&gdscript_funcs); + + for (MethodInfo &info : gdscript_funcs) { + if (info.name == name) { + parser->push_warning(p_local, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in function"); + return true; + } + } + if (Variant::has_utility_function(name)) { + parser->push_warning(p_local, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in function"); + return true; + } else if (ClassDB::class_exists(name)) { + parser->push_warning(p_local, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "global class"); + return true; + } + } + while (base_class != nullptr) { if (base_class->has_member(name)) { parser->push_warning(p_local, GDScriptWarning::SHADOWED_VARIABLE, p_context, p_local->name, base_class->get_member(name).get_type_name(), itos(base_class->get_member(name).get_line())); @@ -3607,6 +3957,7 @@ GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator // Unary version. GDScriptParser::DataType nil_type; nil_type.builtin_type = Variant::NIL; + nil_type.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; return get_operation_type(p_operation, p_a, nil_type, r_valid, p_source); } @@ -3617,24 +3968,51 @@ GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator Variant::Type a_type = p_a.builtin_type; Variant::Type b_type = p_b.builtin_type; + if (p_a.kind == GDScriptParser::DataType::ENUM) { + if (p_a.is_meta_type) { + a_type = Variant::DICTIONARY; + } else { + a_type = Variant::INT; + } + } + if (p_b.kind == GDScriptParser::DataType::ENUM) { + if (p_b.is_meta_type) { + b_type = Variant::DICTIONARY; + } else { + b_type = Variant::INT; + } + } + Variant::ValidatedOperatorEvaluator op_eval = Variant::get_validated_operator_evaluator(p_operation, a_type, b_type); - if (op_eval == nullptr) { + bool hard_operation = p_a.is_hard_type() && p_b.is_hard_type(); + bool validated = op_eval != nullptr; + + if (hard_operation && !validated) { r_valid = false; return result; + } else if (hard_operation && validated) { + r_valid = true; + result.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; + result.kind = GDScriptParser::DataType::BUILTIN; + result.builtin_type = Variant::get_operator_return_type(p_operation, a_type, b_type); + } else if (!hard_operation && !validated) { + r_valid = true; + result.type_source = GDScriptParser::DataType::UNDETECTED; + result.kind = GDScriptParser::DataType::VARIANT; + result.builtin_type = Variant::NIL; + } else if (!hard_operation && validated) { + r_valid = true; + result.type_source = GDScriptParser::DataType::INFERRED; + result.kind = GDScriptParser::DataType::BUILTIN; + result.builtin_type = Variant::get_operator_return_type(p_operation, a_type, b_type); } - r_valid = true; - result.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; - - result.kind = GDScriptParser::DataType::BUILTIN; - result.builtin_type = Variant::get_operator_return_type(p_operation, a_type, b_type); - return result; } // TODO: Add safe/unsafe return variable (for variant cases) -bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_target, const GDScriptParser::DataType &p_source, bool p_allow_implicit_conversion) const { +bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_target, const GDScriptParser::DataType &p_source, bool p_allow_implicit_conversion, const GDScriptParser::Node *p_source_node) { // These return "true" so it doesn't affect users negatively. ERR_FAIL_COND_V_MSG(!p_target.is_set(), true, "Parser bug (please report): Trying to check compatibility of unset target type"); ERR_FAIL_COND_V_MSG(!p_source.is_set(), true, "Parser bug (please report): Trying to check compatibility of unset value type"); @@ -3654,7 +4032,7 @@ bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_targ if (!valid && p_allow_implicit_conversion) { valid = Variant::can_convert_strict(p_source.builtin_type, p_target.builtin_type); } - if (!valid && p_target.builtin_type == Variant::INT && p_source.kind == GDScriptParser::DataType::ENUM_VALUE) { + if (!valid && p_target.builtin_type == Variant::INT && p_source.kind == GDScriptParser::DataType::ENUM && !p_source.is_meta_type) { // Enum value is also integer. valid = true; } @@ -3675,10 +4053,15 @@ bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_targ if (p_target.kind == GDScriptParser::DataType::ENUM) { if (p_source.kind == GDScriptParser::DataType::BUILTIN && p_source.builtin_type == Variant::INT) { +#ifdef DEBUG_ENABLED + if (p_source_node) { + parser->push_warning(p_source_node, GDScriptWarning::INT_ASSIGNED_TO_ENUM); + } +#endif return true; } - if (p_source.kind == GDScriptParser::DataType::ENUM_VALUE) { - if (p_source.native_type == p_target.native_type && p_target.enum_values.has(p_source.enum_type)) { + if (p_source.kind == GDScriptParser::DataType::ENUM) { + if (p_source.native_type == p_target.native_type) { return true; } } @@ -3736,7 +4119,6 @@ bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_targ case GDScriptParser::DataType::VARIANT: case GDScriptParser::DataType::BUILTIN: case GDScriptParser::DataType::ENUM: - case GDScriptParser::DataType::ENUM_VALUE: case GDScriptParser::DataType::UNRESOLVED: break; // Already solved before. } @@ -3773,7 +4155,6 @@ bool GDScriptAnalyzer::is_type_compatible(const GDScriptParser::DataType &p_targ case GDScriptParser::DataType::VARIANT: case GDScriptParser::DataType::BUILTIN: case GDScriptParser::DataType::ENUM: - case GDScriptParser::DataType::ENUM_VALUE: case GDScriptParser::DataType::UNRESOLVED: break; // Already solved before. } @@ -3794,6 +4175,12 @@ 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); } @@ -3805,7 +4192,9 @@ Ref<GDScriptParserRef> GDScriptAnalyzer::get_parser_for(const String &p_path) { } else { Error err = OK; ref = GDScriptCache::get_parser(p_path, GDScriptParserRef::EMPTY, err, parser->script_path); - depended_parsers[p_path] = ref; + if (ref.is_valid()) { + depended_parsers[p_path] = ref; + } } return ref; |