diff options
Diffstat (limited to 'modules/gdscript/gdscript_analyzer.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_analyzer.cpp | 386 |
1 files changed, 264 insertions, 122 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index 18c69467dc..983a19470a 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -248,7 +248,7 @@ 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) { + 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; } @@ -386,6 +386,7 @@ Error GDScriptAnalyzer::resolve_class_inheritance(GDScriptParser::ClassNode *p_c if (!p_class->extends_used) { result.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; result.kind = GDScriptParser::DataType::NATIVE; + result.builtin_type = Variant::OBJECT; result.native_type = SNAME("RefCounted"); } else { result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; @@ -459,7 +460,12 @@ Error GDScriptAnalyzer::resolve_class_inheritance(GDScriptParser::ClassNode *p_c } base = info_parser->get_parser()->head->get_datatype(); } else if (class_exists(name)) { + if (Engine::get_singleton()->has_singleton(name)) { + push_error(vformat(R"(Cannot inherit native class "%s" because it is an engine singleton.)", name), id); + return ERR_PARSE_ERROR; + } base.kind = GDScriptParser::DataType::NATIVE; + base.builtin_type = Variant::OBJECT; base.native_type = name; } else { // Look for other classes in script. @@ -669,11 +675,6 @@ GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::Type return bad_type; } result.kind = GDScriptParser::DataType::VARIANT; - } else if (first == SNAME("Object")) { - // Object is treated like a native type, not a built-in. - result.kind = GDScriptParser::DataType::NATIVE; - result.builtin_type = Variant::OBJECT; - result.native_type = SNAME("Object"); } else if (GDScriptParser::get_builtin_type(first) < Variant::VARIANT_MAX) { // Built-in types. if (p_type->type_chain.size() > 1) { @@ -909,7 +910,7 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class, for (GDScriptParser::AnnotationNode *&E : member_node->annotations) { if (E->name == SNAME("@warning_ignore")) { resolve_annotation(E); - E->apply(parser, member.variable); + E->apply(parser, member.variable, p_class); } } for (GDScriptWarning::Code ignored_warning : member_node->ignored_warnings) { @@ -932,7 +933,7 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class, for (GDScriptParser::AnnotationNode *&E : member.variable->annotations) { if (E->name != SNAME("@warning_ignore")) { resolve_annotation(E); - E->apply(parser, member.variable); + E->apply(parser, member.variable, p_class); } } @@ -984,7 +985,7 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class, // Apply annotations. for (GDScriptParser::AnnotationNode *&E : member.constant->annotations) { resolve_annotation(E); - E->apply(parser, member.constant); + E->apply(parser, member.constant, p_class); } } break; case GDScriptParser::ClassNode::Member::SIGNAL: { @@ -1000,15 +1001,21 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class, GDScriptParser::ParameterNode *param = member.signal->parameters[j]; GDScriptParser::DataType param_type = type_from_metatype(resolve_datatype(param->datatype_specifier)); param->set_datatype(param_type); - mi.arguments.push_back(PropertyInfo(param_type.builtin_type, param->identifier->name)); - // TODO: add signal parameter default values +#ifdef DEBUG_ENABLED + if (param->datatype_specifier == nullptr) { + parser->push_warning(param, GDScriptWarning::UNTYPED_DECLARATION, "Parameter", param->identifier->name); + } +#endif + mi.arguments.push_back(param_type.to_property_info(param->identifier->name)); + // Signals do not support parameter default values. } member.signal->set_datatype(make_signal_type(mi)); + member.signal->method_info = mi; // Apply annotations. for (GDScriptParser::AnnotationNode *&E : member.signal->annotations) { resolve_annotation(E); - E->apply(parser, member.signal); + E->apply(parser, member.signal, p_class); } } break; case GDScriptParser::ClassNode::Member::ENUM: { @@ -1056,13 +1063,13 @@ void GDScriptAnalyzer::resolve_class_member(GDScriptParser::ClassNode *p_class, // Apply annotations. for (GDScriptParser::AnnotationNode *&E : member.m_enum->annotations) { resolve_annotation(E); - E->apply(parser, member.m_enum); + E->apply(parser, member.m_enum, p_class); } } break; case GDScriptParser::ClassNode::Member::FUNCTION: for (GDScriptParser::AnnotationNode *&E : member.function->annotations) { resolve_annotation(E); - E->apply(parser, member.function); + E->apply(parser, member.function, p_class); } resolve_function_signature(member.function, p_source); break; @@ -1272,23 +1279,21 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class, co // Apply annotations. for (GDScriptParser::AnnotationNode *&E : member.function->annotations) { resolve_annotation(E); - E->apply(parser, member.function); + E->apply(parser, member.function, p_class); } resolve_function_body(member.function); } 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); + member.variable->getter->return_type = member.variable->datatype_specifier; + member.variable->getter->set_datatype(member.get_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()); - } + ERR_CONTINUE(member.variable->setter->parameters.is_empty()); + 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); } @@ -1296,7 +1301,7 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class, co } else if (member.type == GDScriptParser::ClassNode::Member::GROUP) { // Apply annotation (`@export_{category,group,subgroup}`). resolve_annotation(member.annotation); - member.annotation->apply(parser, nullptr); + member.annotation->apply(parser, nullptr, p_class); } } @@ -1411,7 +1416,7 @@ void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class, bo } void GDScriptAnalyzer::resolve_node(GDScriptParser::Node *p_node, bool p_is_root) { - ERR_FAIL_COND_MSG(p_node == nullptr, "Trying to resolve type of a null node."); + ERR_FAIL_NULL_MSG(p_node, "Trying to resolve type of a null node."); switch (p_node->type) { case GDScriptParser::Node::NONE: @@ -1580,7 +1585,13 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * GDScriptParser::FunctionNode *previous_function = parser->current_function; parser->current_function = p_function; bool previous_static_context = static_context; - static_context = p_function->is_static; + if (p_is_lambda) { + // For lambdas this is determined from the context, the `static` keyword is not allowed. + p_function->is_static = static_context; + } else { + // For normal functions, this is determined in the parser by the `static` keyword. + static_context = p_function->is_static; + } GDScriptParser::DataType prev_datatype = p_function->get_datatype(); @@ -1592,21 +1603,26 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * int default_value_count = 0; #endif // TOOLS_ENABLED +#ifdef DEBUG_ENABLED + String function_visible_name = function_name; + if (function_name == StringName()) { + function_visible_name = p_is_lambda ? "<anonymous lambda>" : "<unknown function>"; + } +#endif + for (int i = 0; i < p_function->parameters.size(); i++) { resolve_parameter(p_function->parameters[i]); #ifdef DEBUG_ENABLED if (p_function->parameters[i]->usages == 0 && !String(p_function->parameters[i]->identifier->name).begins_with("_")) { - String visible_name = function_name; - if (function_name == StringName()) { - visible_name = p_is_lambda ? "<anonymous lambda>" : "<unknown function>"; - } - parser->push_warning(p_function->parameters[i]->identifier, GDScriptWarning::UNUSED_PARAMETER, visible_name, p_function->parameters[i]->identifier->name); + parser->push_warning(p_function->parameters[i]->identifier, GDScriptWarning::UNUSED_PARAMETER, function_visible_name, p_function->parameters[i]->identifier->name); } is_shadowing(p_function->parameters[i]->identifier, "function parameter", true); #endif // DEBUG_ENABLED -#ifdef TOOLS_ENABLED + if (p_function->parameters[i]->initializer) { +#ifdef TOOLS_ENABLED default_value_count++; +#endif // TOOLS_ENABLED if (p_function->parameters[i]->initializer->is_constant) { p_function->default_arg_values.push_back(p_function->parameters[i]->initializer->reduced_value); @@ -1614,7 +1630,6 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * p_function->default_arg_values.push_back(Variant()); // Prevent shift. } } -#endif // TOOLS_ENABLED } if (!p_is_lambda && function_name == GDScriptLanguage::get_singleton()->strings._init) { @@ -1664,15 +1679,42 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * StringName native_base; if (!p_is_lambda && get_function_signature(p_function, false, base_type, function_name, parent_return_type, parameters_types, default_par_count, method_flags, &native_base)) { bool valid = p_function->is_static == method_flags.has_flag(METHOD_FLAG_STATIC); - valid = valid && parent_return_type == p_function->get_datatype(); + + if (p_function->return_type != nullptr) { + // Check return type covariance. + GDScriptParser::DataType return_type = p_function->get_datatype(); + if (return_type.is_variant()) { + // `is_type_compatible()` returns `true` if one of the types is `Variant`. + // Don't allow an explicitly specified `Variant` if the parent return type is narrower. + valid = valid && parent_return_type.is_variant(); + } else if (return_type.kind == GDScriptParser::DataType::BUILTIN && return_type.builtin_type == Variant::NIL) { + // `is_type_compatible()` returns `true` if target is an `Object` and source is `null`. + // Don't allow `void` if the parent return type is a hard non-`void` type. + if (parent_return_type.is_hard_type() && !(parent_return_type.kind == GDScriptParser::DataType::BUILTIN && parent_return_type.builtin_type == Variant::NIL)) { + valid = false; + } + } else { + valid = valid && is_type_compatible(parent_return_type, return_type); + } + } 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) { + int i = 0; + for (const GDScriptParser::DataType &parent_par_type : parameters_types) { + // Check parameter type contravariance. + GDScriptParser::DataType current_par_type = p_function->parameters[i++]->get_datatype(); + if (parent_par_type.is_variant() && parent_par_type.is_hard_type()) { + // `is_type_compatible()` returns `true` if one of the types is `Variant`. + // Don't allow narrowing a hard `Variant`. + valid = valid && current_par_type.is_variant(); + } else { + valid = valid && is_type_compatible(current_par_type, parent_par_type); + } + } } if (!valid) { @@ -1696,7 +1738,7 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * } parent_signature += ") -> "; - const String return_type = parent_return_type.is_hard_type() ? parent_return_type.to_string() : "Variant"; + const String return_type = parent_return_type.to_string_strict(); if (return_type == "null") { parent_signature += "void"; } else { @@ -1714,6 +1756,12 @@ void GDScriptAnalyzer::resolve_function_signature(GDScriptParser::FunctionNode * #endif // TOOLS_ENABLED } +#ifdef DEBUG_ENABLED + if (p_function->return_type == nullptr) { + parser->push_warning(p_function, GDScriptWarning::UNTYPED_DECLARATION, "Function", function_visible_name); + } +#endif + if (p_function->get_datatype().is_resolving()) { p_function->set_datatype(prev_datatype); } @@ -1795,7 +1843,7 @@ void GDScriptAnalyzer::resolve_suite(GDScriptParser::SuiteNode *p_suite) { // Apply annotations. for (GDScriptParser::AnnotationNode *&E : stmt->annotations) { resolve_annotation(E); - E->apply(parser, stmt); + E->apply(parser, stmt, nullptr); } #ifdef DEBUG_ENABLED @@ -1917,6 +1965,18 @@ void GDScriptAnalyzer::resolve_assignable(GDScriptParser::AssignableNode *p_assi } } +#ifdef DEBUG_ENABLED + if (!has_specified_type) { + const bool is_parameter = p_assignable->type == GDScriptParser::Node::PARAMETER; + const String declaration_type = is_constant ? "Constant" : (is_parameter ? "Parameter" : "Variable"); + if (p_assignable->infer_datatype || is_constant) { + parser->push_warning(p_assignable, GDScriptWarning::INFERRED_DECLARATION, declaration_type, p_assignable->identifier->name); + } else { + parser->push_warning(p_assignable, GDScriptWarning::UNTYPED_DECLARATION, declaration_type, p_assignable->identifier->name); + } + } +#endif + type.is_constant = is_constant; type.is_read_only = false; p_assignable->set_datatype(type); @@ -2121,19 +2181,21 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { } } else if (!is_type_compatible(specified_type, variable_type)) { p_for->use_conversion_assign = true; -#ifdef DEBUG_ENABLED - } else { - parser->push_warning(p_for->datatype_specifier, GDScriptWarning::REDUNDANT_FOR_VARIABLE_TYPE, p_for->variable->name, variable_type.to_string(), specified_type.to_string()); -#endif } -#ifdef DEBUG_ENABLED - } else { - parser->push_warning(p_for->datatype_specifier, GDScriptWarning::REDUNDANT_FOR_VARIABLE_TYPE, p_for->variable->name, variable_type.to_string(), specified_type.to_string()); -#endif + if (p_for->list && p_for->list->type == GDScriptParser::Node::ARRAY) { + update_array_literal_element_type(static_cast<GDScriptParser::ArrayNode *>(p_for->list), specified_type); + } } p_for->variable->set_datatype(specified_type); } else { p_for->variable->set_datatype(variable_type); +#ifdef DEBUG_ENABLED + if (variable_type.is_hard_type()) { + parser->push_warning(p_for->variable, GDScriptWarning::INFERRED_DECLARATION, R"("for" iterator variable)", p_for->variable->name); + } else { + parser->push_warning(p_for->variable, GDScriptWarning::UNTYPED_DECLARATION, R"("for" iterator variable)", p_for->variable->name); + } +#endif } } @@ -2190,6 +2252,10 @@ void GDScriptAnalyzer::resolve_match_branch(GDScriptParser::MatchBranchNode *p_m resolve_match_pattern(p_match_branch->patterns[i], p_match_test); } + if (p_match_branch->guard_body) { + resolve_suite(p_match_branch->guard_body); + } + resolve_suite(p_match_branch->block); decide_suite_type(p_match_branch, p_match_branch->block); @@ -2440,6 +2506,14 @@ void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expre case GDScriptParser::Node::WHILE: ERR_FAIL_MSG("Reaching unreachable case"); } + + if (p_expression->get_datatype().kind == GDScriptParser::DataType::UNRESOLVED) { + // Prevent `is_type_compatible()` errors for incomplete expressions. + // The error can still occur if `reduce_*()` is called directly. + GDScriptParser::DataType dummy; + dummy.kind = GDScriptParser::DataType::VARIANT; + p_expression->set_datatype(dummy); + } } void GDScriptAnalyzer::reduce_array(GDScriptParser::ArrayNode *p_array) { @@ -2523,28 +2597,31 @@ void GDScriptAnalyzer::update_const_expression_builtin_type(GDScriptParser::Expr // When an array literal is stored (or passed as function argument) to a typed context, we then assume the array is typed. // This function determines which type is that (if any). void GDScriptAnalyzer::update_array_literal_element_type(GDScriptParser::ArrayNode *p_array, const GDScriptParser::DataType &p_element_type) { + GDScriptParser::DataType expected_type = p_element_type; + expected_type.unset_container_element_type(); // Nested types (like `Array[Array[int]]`) are not currently supported. + for (int i = 0; i < p_array->elements.size(); i++) { GDScriptParser::ExpressionNode *element_node = p_array->elements[i]; if (element_node->is_constant) { - update_const_expression_builtin_type(element_node, p_element_type, "include"); + update_const_expression_builtin_type(element_node, expected_type, "include"); } - const GDScriptParser::DataType &element_type = element_node->get_datatype(); - if (element_type.has_no_type() || element_type.is_variant() || !element_type.is_hard_type()) { + const GDScriptParser::DataType &actual_type = element_node->get_datatype(); + if (actual_type.has_no_type() || actual_type.is_variant() || !actual_type.is_hard_type()) { mark_node_unsafe(element_node); continue; } - if (!is_type_compatible(p_element_type, element_type, true, p_array)) { - if (is_type_compatible(element_type, p_element_type)) { + if (!is_type_compatible(expected_type, actual_type, true, p_array)) { + if (is_type_compatible(actual_type, expected_type)) { mark_node_unsafe(element_node); continue; } - push_error(vformat(R"(Cannot have an element of type "%s" in an array of type "Array[%s]".)", element_type.to_string(), p_element_type.to_string()), element_node); + push_error(vformat(R"(Cannot have an element of type "%s" in an array of type "Array[%s]".)", actual_type.to_string(), expected_type.to_string()), element_node); return; } } GDScriptParser::DataType array_type = p_array->get_datatype(); - array_type.set_container_element_type(p_element_type); + array_type.set_container_element_type(expected_type); p_array->set_datatype(array_type); } @@ -2591,7 +2668,7 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig } // Check if assigned value is an array literal, so we can make it a typed array too if appropriate. - if (p_assignment->assigned_value->type == GDScriptParser::Node::ARRAY && assignee_type.has_container_element_type()) { + if (p_assignment->assigned_value->type == GDScriptParser::Node::ARRAY && assignee_type.is_hard_type() && assignee_type.has_container_element_type()) { update_array_literal_element_type(static_cast<GDScriptParser::ArrayNode *>(p_assignment->assigned_value), assignee_type.get_container_element_type()); } @@ -2870,19 +2947,20 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a if (!p_call->is_super && callee_type == GDScriptParser::Node::IDENTIFIER) { // Call to name directly. StringName function_name = p_call->function_name; - Variant::Type builtin_type = GDScriptParser::get_builtin_type(function_name); + if (function_name == SNAME("Object")) { + push_error(R"*(Invalid constructor "Object()", use "Object.new()" instead.)*", p_call); + p_call->set_datatype(call_type); + return; + } + + Variant::Type builtin_type = GDScriptParser::get_builtin_type(function_name); if (builtin_type < Variant::VARIANT_MAX) { // Is a builtin constructor. call_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; call_type.kind = GDScriptParser::DataType::BUILTIN; call_type.builtin_type = builtin_type; - if (builtin_type == Variant::OBJECT) { - call_type.kind = GDScriptParser::DataType::NATIVE; - call_type.native_type = function_name; // "Object". - } - bool safe_to_fold = true; switch (builtin_type) { // Those are stored by reference so not suited for compile-time construction. @@ -2918,7 +2996,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a switch (err.error) { case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: - push_error(vformat(R"(Invalid argument for %s constructor: argument %d should be "%s" but is "%s".)", Variant::get_type_name(builtin_type), err.argument + 1, + push_error(vformat(R"*(Invalid argument for "%s()" constructor: argument %d should be "%s" but is "%s".)*", Variant::get_type_name(builtin_type), err.argument + 1, Variant::get_type_name(Variant::Type(err.expected)), p_call->arguments[err.argument]->get_datatype().to_string()), p_call->arguments[err.argument]); break; @@ -2934,10 +3012,10 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a push_error(vformat(R"(No constructor of "%s" matches the signature "%s".)", Variant::get_type_name(builtin_type), signature), p_call->callee); } break; case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: - push_error(vformat(R"(Too many arguments for %s constructor. Received %d but expected %d.)", Variant::get_type_name(builtin_type), p_call->arguments.size(), err.expected), p_call); + push_error(vformat(R"*(Too many arguments for "%s()" constructor. Received %d but expected %d.)*", Variant::get_type_name(builtin_type), p_call->arguments.size(), err.expected), p_call); break; case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: - push_error(vformat(R"(Too few arguments for %s constructor. Received %d but expected %d.)", Variant::get_type_name(builtin_type), p_call->arguments.size(), err.expected), p_call); + push_error(vformat(R"*(Too few arguments for "%s()" constructor. Received %d but expected %d.)*", Variant::get_type_name(builtin_type), p_call->arguments.size(), err.expected), p_call); break; case Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL: case Callable::CallError::CALL_ERROR_METHOD_NOT_CONST: @@ -2948,21 +3026,41 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a break; } } else { - // TODO: Check constructors without constants. - // If there's one argument, try to use copy constructor (those aren't explicitly defined). if (p_call->arguments.size() == 1) { GDScriptParser::DataType arg_type = p_call->arguments[0]->get_datatype(); - if (arg_type.is_variant()) { - mark_node_unsafe(p_call->arguments[0]); - } else { + if (arg_type.is_hard_type() && !arg_type.is_variant()) { if (arg_type.kind == GDScriptParser::DataType::BUILTIN && arg_type.builtin_type == builtin_type) { // Okay. p_call->set_datatype(call_type); return; } + } else { +#ifdef DEBUG_ENABLED + mark_node_unsafe(p_call); + // Constructors support overloads. + Vector<String> types; + for (int i = 0; i < Variant::VARIANT_MAX; i++) { + if (i != builtin_type && Variant::can_convert_strict((Variant::Type)i, builtin_type)) { + types.push_back(Variant::get_type_name((Variant::Type)i)); + } + } + String expected_types = function_name; + if (types.size() == 1) { + expected_types += "\" or \"" + types[0]; + } else if (types.size() >= 2) { + for (int i = 0; i < types.size() - 1; i++) { + expected_types += "\", \"" + types[i]; + } + expected_types += "\", or \"" + types[types.size() - 1]; + } + parser->push_warning(p_call->arguments[0], GDScriptWarning::UNSAFE_CALL_ARGUMENT, "1", "constructor", function_name, expected_types, "Variant"); +#endif + p_call->set_datatype(call_type); + return; } } + List<MethodInfo> constructors; Variant::get_constructor_list(builtin_type, &constructors); bool match = false; @@ -2979,14 +3077,14 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a for (int i = 0; i < p_call->arguments.size(); i++) { GDScriptParser::DataType par_type = type_from_property(info.arguments[i], true); - - if (!is_type_compatible(par_type, p_call->arguments[i]->get_datatype(), true)) { + GDScriptParser::DataType arg_type = p_call->arguments[i]->get_datatype(); + if (!is_type_compatible(par_type, arg_type, true)) { types_match = false; break; #ifdef DEBUG_ENABLED } else { - 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); + if (par_type.builtin_type == Variant::INT && arg_type.builtin_type == Variant::FLOAT && builtin_type != Variant::INT) { + parser->push_warning(p_call, GDScriptWarning::NARROWING_CONVERSION, function_name); } #endif } @@ -2994,9 +3092,19 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a if (types_match) { for (int i = 0; i < p_call->arguments.size(); i++) { + GDScriptParser::DataType par_type = type_from_property(info.arguments[i], true); if (p_call->arguments[i]->is_constant) { - update_const_expression_builtin_type(p_call->arguments[i], type_from_property(info.arguments[i], true), "pass"); + update_const_expression_builtin_type(p_call->arguments[i], par_type, "pass"); + } +#ifdef DEBUG_ENABLED + if (!(par_type.is_variant() && par_type.is_hard_type())) { + GDScriptParser::DataType arg_type = p_call->arguments[i]->get_datatype(); + if (arg_type.is_variant() || !arg_type.is_hard_type()) { + mark_node_unsafe(p_call); + parser->push_warning(p_call->arguments[i], GDScriptWarning::UNSAFE_CALL_ARGUMENT, itos(i + 1), "constructor", function_name, par_type.to_string(), arg_type.to_string_strict()); + } } +#endif } match = true; call_type = type_from_property(info.return_val); @@ -3037,12 +3145,16 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a GDScriptUtilityFunctions::get_function(function_name)(&value, (const Variant **)args.ptr(), args.size(), err); switch (err.error) { - case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: { - PropertyInfo wrong_arg = function_info.arguments[err.argument]; - push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be "%s" but is "%s".)*", function_name, err.argument + 1, - type_from_property(wrong_arg, true).to_string(), p_call->arguments[err.argument]->get_datatype().to_string()), - p_call->arguments[err.argument]); - } break; + case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: + if (value.get_type() == Variant::STRING && !value.operator String().is_empty()) { + push_error(vformat(R"*(Invalid argument for "%s()" function: %s)*", function_name, value), p_call->arguments[err.argument]); + } else { + // Do not use `type_from_property()` for expected type, since utility functions use their own checks. + push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be "%s" but is "%s".)*", function_name, err.argument + 1, + Variant::get_type_name((Variant::Type)err.expected), p_call->arguments[err.argument]->get_datatype().to_string()), + p_call->arguments[err.argument]); + } + break; case Callable::CallError::CALL_ERROR_INVALID_METHOD: push_error(vformat(R"(Invalid call for function "%s".)", function_name), p_call); break; @@ -3084,18 +3196,16 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a Variant::call_utility_function(function_name, &value, (const Variant **)args.ptr(), args.size(), err); switch (err.error) { - case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: { - String expected_type_name; - if (err.argument < function_info.arguments.size()) { - expected_type_name = type_from_property(function_info.arguments[err.argument], true).to_string(); + case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: + if (value.get_type() == Variant::STRING && !value.operator String().is_empty()) { + push_error(vformat(R"*(Invalid argument for "%s()" function: %s)*", function_name, value), p_call->arguments[err.argument]); } else { - expected_type_name = Variant::get_type_name((Variant::Type)err.expected); + // Do not use `type_from_property()` for expected type, since utility functions use their own checks. + push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be "%s" but is "%s".)*", function_name, err.argument + 1, + Variant::get_type_name((Variant::Type)err.expected), p_call->arguments[err.argument]->get_datatype().to_string()), + p_call->arguments[err.argument]); } - - push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be "%s" but is "%s".)*", function_name, err.argument + 1, - expected_type_name, p_call->arguments[err.argument]->get_datatype().to_string()), - p_call->arguments[err.argument]); - } break; + break; case Callable::CallError::CALL_ERROR_INVALID_METHOD: push_error(vformat(R"(Invalid call for function "%s".)", function_name), p_call); break; @@ -3185,11 +3295,23 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a 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 (is_constructor && Engine::get_singleton()->has_singleton(base_type.native_type)) { + push_error(vformat(R"(Cannot construct native class "%s" because it is an engine singleton.)", base_type.native_type), p_call); + p_call->set_datatype(call_type); + return; + } + if (get_function_signature(p_call, is_constructor, base_type, p_call->function_name, return_type, par_types, default_arg_count, method_flags)) { - // If the function require typed arrays we must make literals be typed. + // If the method is implemented in the class hierarchy, the virtual flag will not be set for that MethodInfo and the search stops there. + // Virtual check only possible for super() calls because class hierarchy is known. Node/Objects may have scripts attached we don't know of at compile-time. + if (p_call->is_super && method_flags.has_flag(METHOD_FLAG_VIRTUAL)) { + push_error(vformat(R"*(Cannot call the parent class' virtual function "%s()" because it hasn't been defined.)*", p_call->function_name), p_call); + } + + // If the function requires typed arrays we must make literals be typed. for (const KeyValue<int, GDScriptParser::ArrayNode *> &E : arrays) { int index = E.key; - if (index < par_types.size() && par_types[index].has_container_element_type()) { + if (index < par_types.size() && par_types[index].is_hard_type() && par_types[index].has_container_element_type()) { update_array_literal_element_type(E.value, par_types[index].get_container_element_type()); } } @@ -3201,15 +3323,16 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a } if (is_self && static_context && !method_flags.has_flag(METHOD_FLAG_STATIC)) { - if (parser->current_function) { - // 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; - } + // Get the parent function above any lambda. + GDScriptParser::FunctionNode *parent_function = parser->current_function; + while (parent_function && parent_function->source_lambda) { + parent_function = parent_function->source_lambda->parent_function; + } + + if (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 { - push_error(vformat(R"*(Cannot call non-static function "%s()" for static variable initializer.)*", p_call->function_name), p_call); + push_error(vformat(R"*(Cannot call non-static function "%s()" from a static variable initializer.)*", p_call->function_name), p_call); } } else if (!is_self && base_type.is_meta_type && !method_flags.has_flag(METHOD_FLAG_STATIC)) { base_type.is_meta_type = false; // For `to_string()`. @@ -3290,8 +3413,8 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a #else 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); #endif // SUGGEST_GODOT4_RENAMES - } 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), p_call); + } else if (!found && (!p_call->is_super && base_type.is_hard_type() && base_type.is_meta_type)) { + push_error(vformat(R"*(Static function "%s()" not found in base "%s".)*", p_call->function_name, base_type.to_string()), p_call); } } @@ -3439,7 +3562,7 @@ void GDScriptAnalyzer::reduce_identifier_from_base_set_class(GDScriptParser::Ide p_identifier->set_datatype(p_identifier_datatype); Error err = OK; - Ref<GDScript> scr = GDScriptCache::get_shallow_script(p_identifier_datatype.script_path, err); + Ref<GDScript> scr = GDScriptCache::get_shallow_script(p_identifier_datatype.script_path, err, parser->script_path); if (err) { push_error(vformat(R"(Error while getting cache for script "%s".)", p_identifier_datatype.script_path), p_identifier); return; @@ -3779,6 +3902,7 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident #endif // Not a local, so check members. + if (!found_source) { reduce_identifier_from_base(p_identifier); if (p_identifier->source != GDScriptParser::IdentifierNode::UNDEFINED_SOURCE || p_identifier->get_datatype().is_set()) { @@ -3791,15 +3915,16 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident bool source_is_variable = p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_VARIABLE || p_identifier->source == GDScriptParser::IdentifierNode::INHERITED_VARIABLE; bool source_is_signal = p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_SIGNAL; if ((source_is_variable || source_is_signal) && static_context) { - if (parser->current_function) { - // 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; - } + // Get the parent function above any lambda. + GDScriptParser::FunctionNode *parent_function = parser->current_function; + while (parent_function && parent_function->source_lambda) { + parent_function = parent_function->source_lambda->parent_function; + } + + if (parent_function) { push_error(vformat(R"*(Cannot access %s "%s" from the static function "%s()".)*", source_is_signal ? "signal" : "instance variable", p_identifier->name, parent_function->identifier->name), p_identifier); } else { - push_error(vformat(R"*(Cannot access %s "%s" for a static variable initializer.)*", source_is_signal ? "signal" : "instance variable", p_identifier->name), p_identifier); + push_error(vformat(R"*(Cannot access %s "%s" from a static variable initializer.)*", source_is_signal ? "signal" : "instance variable", p_identifier->name), p_identifier); } } @@ -3831,10 +3956,10 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident StringName name = p_identifier->name; p_identifier->source = GDScriptParser::IdentifierNode::UNDEFINED_SOURCE; - // Check globals. We make an exception for Variant::OBJECT because it's the base class for - // non-builtin types so we allow doing e.g. Object.new() + // Not a local or a member, so check globals. + Variant::Type builtin_type = GDScriptParser::get_builtin_type(name); - if (builtin_type != Variant::OBJECT && builtin_type < Variant::VARIANT_MAX) { + if (builtin_type < Variant::VARIANT_MAX) { if (can_be_builtin) { p_identifier->set_datatype(make_builtin_meta_type(builtin_type)); return; @@ -3860,8 +3985,10 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident if (autoload.is_singleton) { // Singleton exists, so it's at least a Node. GDScriptParser::DataType result; - result.kind = GDScriptParser::DataType::NATIVE; result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; + result.kind = GDScriptParser::DataType::NATIVE; + result.builtin_type = Variant::OBJECT; + result.native_type = SNAME("Node"); if (ResourceLoader::get_resource_type(autoload.path) == "GDScript") { Ref<GDScriptParserRef> singl_parser = get_parser_for(autoload.path); if (singl_parser.is_valid()) { @@ -4075,7 +4202,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri GDScriptParser::DataType base_type = p_subscript->base->get_datatype(); bool valid = false; // If the base is a metatype, use the analyzer instead. - if (p_subscript->base->is_constant && !base_type.is_meta_type) { + if (p_subscript->base->is_constant && !base_type.is_meta_type && base_type.kind != GDScriptParser::DataType::CLASS) { // Just try to get it. Variant value = p_subscript->base->reduced_value.get_named(p_subscript->attribute->name, valid); if (valid) { @@ -4224,7 +4351,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri } } else if (base_type.kind != GDScriptParser::DataType::BUILTIN && !index_type.is_variant()) { if (index_type.builtin_type != Variant::STRING && index_type.builtin_type != Variant::STRING_NAME) { - push_error(vformat(R"(Only String or StringName can be used as index for type "%s", but received a "%s".)", base_type.to_string(), index_type.to_string()), p_subscript->index); + push_error(vformat(R"(Only "String" or "StringName" can be used as index for type "%s", but received "%s".)", base_type.to_string(), index_type.to_string()), p_subscript->index); } } @@ -4563,7 +4690,7 @@ Array GDScriptAnalyzer::make_array_from_element_datatype(const GDScriptParser::D Ref<Script> script_type = p_element_datatype.script_type; if (p_element_datatype.kind == GDScriptParser::DataType::CLASS && script_type.is_null()) { Error err = OK; - Ref<GDScript> scr = GDScriptCache::get_shallow_script(p_element_datatype.script_path, err); + Ref<GDScript> scr = GDScriptCache::get_shallow_script(p_element_datatype.script_path, err, parser->script_path); if (err) { push_error(vformat(R"(Error while getting cache for script "%s".)", p_element_datatype.script_path), p_source_node); return array; @@ -4734,7 +4861,7 @@ GDScriptParser::DataType GDScriptAnalyzer::type_from_property(const PropertyInfo } else if (class_exists(elem_type_name)) { elem_type.kind = GDScriptParser::DataType::NATIVE; elem_type.builtin_type = Variant::OBJECT; - elem_type.native_type = p_property.hint_string; + elem_type.native_type = elem_type_name; } else if (ScriptServer::is_global_class(elem_type_name)) { // Just load this as it shouldn't be a GDScript. Ref<Script> script = ResourceLoader::load(ScriptServer::get_global_class_path(elem_type_name)); @@ -4962,21 +5089,28 @@ void GDScriptAnalyzer::validate_call_arg(const List<GDScriptParser::DataType> &p GDScriptParser::DataType arg_type = p_call->arguments[i]->get_datatype(); if (arg_type.is_variant() || !arg_type.is_hard_type()) { +#ifdef DEBUG_ENABLED // Argument can be anything, so this is unsafe (unless the parameter is a hard variant). if (!(par_type.is_hard_type() && par_type.is_variant())) { mark_node_unsafe(p_call->arguments[i]); + parser->push_warning(p_call->arguments[i], GDScriptWarning::UNSAFE_CALL_ARGUMENT, itos(i + 1), "function", p_call->function_name, par_type.to_string(), arg_type.to_string_strict()); } +#endif } else if (par_type.is_hard_type() && !is_type_compatible(par_type, arg_type, true)) { - // Supertypes are acceptable for dynamic compliance, but it's unsafe. - mark_node_unsafe(p_call); if (!is_type_compatible(arg_type, par_type)) { push_error(vformat(R"*(Invalid argument for "%s()" function: argument %d should be "%s" but is "%s".)*", p_call->function_name, i + 1, par_type.to_string(), arg_type.to_string()), p_call->arguments[i]); +#ifdef DEBUG_ENABLED + } else { + // Supertypes are acceptable for dynamic compliance, but it's unsafe. + mark_node_unsafe(p_call); + parser->push_warning(p_call->arguments[i], GDScriptWarning::UNSAFE_CALL_ARGUMENT, itos(i + 1), "function", p_call->function_name, par_type.to_string(), arg_type.to_string_strict()); +#endif } #ifdef DEBUG_ENABLED } else if (par_type.kind == GDScriptParser::DataType::BUILTIN && par_type.builtin_type == Variant::INT && arg_type.kind == GDScriptParser::DataType::BUILTIN && arg_type.builtin_type == Variant::FLOAT) { - parser->push_warning(p_call, GDScriptWarning::NARROWING_CONVERSION, p_call->function_name); + parser->push_warning(p_call->arguments[i], GDScriptWarning::NARROWING_CONVERSION, p_call->function_name); #endif } } @@ -5002,9 +5136,13 @@ void GDScriptAnalyzer::is_shadowing(GDScriptParser::IdentifierNode *p_identifier parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in function"); return; } else if (ClassDB::class_exists(name)) { - parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "global class"); + parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "native class"); + return; + } else if (ScriptServer::is_global_class(name)) { + String class_path = ScriptServer::get_global_class_path(name).get_file(); + parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, vformat(R"(global class defined in "%s")", class_path)); return; - } else if (GDScriptParser::get_builtin_type(name) != Variant::VARIANT_MAX) { + } else if (GDScriptParser::get_builtin_type(name) < Variant::VARIANT_MAX) { parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in type"); return; } @@ -5329,12 +5467,15 @@ void GDScriptAnalyzer::resolve_pending_lambda_bodies() { } GDScriptParser::LambdaNode *previous_lambda = current_lambda; + bool previous_static_context = static_context; List<GDScriptParser::LambdaNode *> lambdas = pending_body_resolution_lambdas; pending_body_resolution_lambdas.clear(); for (GDScriptParser::LambdaNode *lambda : lambdas) { current_lambda = lambda; + static_context = lambda->function->is_static; + resolve_function_body(lambda->function, true); int captures_amount = lambda->captures.size(); @@ -5363,6 +5504,7 @@ void GDScriptAnalyzer::resolve_pending_lambda_bodies() { } current_lambda = previous_lambda; + static_context = previous_static_context; } bool GDScriptAnalyzer::class_exists(const StringName &p_class) const { @@ -5421,7 +5563,7 @@ Error GDScriptAnalyzer::analyze() { // Apply annotations. for (GDScriptParser::AnnotationNode *&E : parser->head->annotations) { resolve_annotation(E); - E->apply(parser, parser->head); + E->apply(parser, parser->head, nullptr); } resolve_interface(); |