diff options
Diffstat (limited to 'modules')
6 files changed, 144 insertions, 81 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index ddfdc937c4..d04f4ea75a 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -1573,6 +1573,9 @@ void GDScriptAnalyzer::resolve_assignable(GDScriptParser::AssignableNode *p_assi if (initializer_type.is_variant() || !initializer_type.is_hard_type()) { mark_node_unsafe(p_assignable->initializer); p_assignable->use_conversion_assign = true; + if (!initializer_type.is_variant() && !is_type_compatible(specified_type, initializer_type, true, p_assignable->initializer)) { + downgrade_node_type_source(p_assignable->initializer); + } } else if (!is_type_compatible(specified_type, initializer_type, true, p_assignable->initializer)) { if (!is_constant && is_type_compatible(initializer_type, specified_type, true, p_assignable->initializer)) { mark_node_unsafe(p_assignable->initializer); @@ -2097,84 +2100,86 @@ void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assig GDScriptParser::DataType assigned_value_type = p_assignment->assigned_value->get_datatype(); + bool assignee_is_variant = assignee_type.is_variant(); + bool assignee_is_hard = assignee_type.is_hard_type(); + bool assigned_is_variant = assigned_value_type.is_variant(); + bool assigned_is_hard = assigned_value_type.is_hard_type(); bool compatible = true; + bool downgrades_assignee = false; + bool downgrades_assigned = false; GDScriptParser::DataType op_type = assigned_value_type; if (p_assignment->operation != GDScriptParser::AssignmentNode::OP_NONE && !op_type.is_variant()) { op_type = get_operation_type(p_assignment->variant_op, assignee_type, assigned_value_type, compatible, p_assignment->assigned_value); + + if (assignee_is_variant) { + // variant assignee + mark_node_unsafe(p_assignment); + } else if (!compatible) { + // incompatible hard types and non-variant assignee + mark_node_unsafe(p_assignment); + if (assigned_is_variant) { + // incompatible hard non-variant assignee and hard variant assigned + p_assignment->use_conversion_assign = true; + } else { + // incompatible hard non-variant types + push_error(vformat(R"(Invalid operands "%s" and "%s" for assignment operator.)", assignee_type.to_string(), assigned_value_type.to_string()), p_assignment); + } + } else if (op_type.type_source == GDScriptParser::DataType::UNDETECTED && !assigned_is_variant) { + // incompatible non-variant types (at least one weak) + downgrades_assignee = !assignee_is_hard; + downgrades_assigned = !assigned_is_hard; + } } p_assignment->set_datatype(op_type); - // If Assignee is a variant, then you can assign anything - // When the assigned value has a known type, further checks are possible. - if (assignee_type.is_hard_type() && !assignee_type.is_variant() && op_type.is_hard_type() && !op_type.is_variant()) { - if (compatible) { - compatible = is_type_compatible(assignee_type, op_type, true, p_assignment->assigned_value); - if (!compatible) { - // Try reverse test since it can be a masked subtype. - if (!is_type_compatible(op_type, assignee_type, true)) { - push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", assigned_value_type.to_string(), assignee_type.to_string()), p_assignment->assigned_value); - } else { - // TODO: Add warning. - mark_node_unsafe(p_assignment); - p_assignment->use_conversion_assign = true; - } - } - } else { - push_error(vformat(R"(Invalid operands "%s" and "%s" for assignment operator.)", assignee_type.to_string(), assigned_value_type.to_string()), p_assignment); + if (assignee_is_variant) { + if (!assignee_is_hard) { + // weak variant assignee + mark_node_unsafe(p_assignment); } - } else if (assignee_type.is_hard_type() && !assignee_type.is_variant()) { - mark_node_unsafe(p_assignment); - p_assignment->use_conversion_assign = true; } else { - mark_node_unsafe(p_assignment); - if (assignee_type.is_hard_type() && !assignee_type.is_variant()) { + if (assignee_is_hard && !assigned_is_hard) { + // hard non-variant assignee and weak assigned + mark_node_unsafe(p_assignment); p_assignment->use_conversion_assign = true; - } - } - - if (p_assignment->assignee->type == GDScriptParser::Node::IDENTIFIER) { - // Change source type so it's not wrongly detected later. - GDScriptParser::IdentifierNode *identifier = static_cast<GDScriptParser::IdentifierNode *>(p_assignment->assignee); - - switch (identifier->source) { - case GDScriptParser::IdentifierNode::MEMBER_VARIABLE: { - GDScriptParser::DataType id_type = identifier->variable_source->get_datatype(); - if (!id_type.is_hard_type()) { - id_type.kind = GDScriptParser::DataType::VARIANT; - id_type.type_source = GDScriptParser::DataType::UNDETECTED; - identifier->variable_source->set_datatype(id_type); - } - } break; - case GDScriptParser::IdentifierNode::FUNCTION_PARAMETER: { - GDScriptParser::DataType id_type = identifier->parameter_source->get_datatype(); - if (!id_type.is_hard_type()) { - 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.kind = GDScriptParser::DataType::VARIANT; - id_type.type_source = GDScriptParser::DataType::UNDETECTED; - identifier->variable_source->set_datatype(id_type); + downgrades_assigned = downgrades_assigned || (!assigned_is_variant && !is_type_compatible(assignee_type, op_type, true, p_assignment->assigned_value)); + } else if (compatible) { + if (op_type.is_variant()) { + // non-variant assignee and variant result + mark_node_unsafe(p_assignment); + if (assignee_is_hard) { + // hard non-variant assignee and variant result + p_assignment->use_conversion_assign = true; + } else { + // weak non-variant assignee and variant result + downgrades_assignee = true; } - } break; - case GDScriptParser::IdentifierNode::LOCAL_ITERATOR: { - GDScriptParser::DataType id_type = identifier->bind_source->get_datatype(); - if (!id_type.is_hard_type()) { - id_type.kind = GDScriptParser::DataType::VARIANT; - id_type.type_source = GDScriptParser::DataType::UNDETECTED; - identifier->bind_source->set_datatype(id_type); + } else if (!is_type_compatible(assignee_type, op_type, assignee_is_hard, p_assignment->assigned_value)) { + // non-variant assignee and incompatible result + mark_node_unsafe(p_assignment); + if (assignee_is_hard) { + if (is_type_compatible(op_type, assignee_type, true, p_assignment->assigned_value)) { + // hard non-variant assignee and maybe compatible result + p_assignment->use_conversion_assign = true; + } else { + // hard non-variant assignee and incompatible result + push_error(vformat(R"(Value of type "%s" cannot be assigned to a variable of type "%s".)", assigned_value_type.to_string(), assignee_type.to_string()), p_assignment->assigned_value); + } + } else { + // weak non-variant assignee and incompatible result + downgrades_assignee = true; } - } break; - default: - // Nothing to do. - break; + } } } + if (downgrades_assignee) { + downgrade_node_type_source(p_assignment->assignee); + } + if (downgrades_assigned) { + downgrade_node_type_source(p_assignment->assigned_value); + } + #ifdef DEBUG_ENABLED if (assignee_type.is_hard_type() && assignee_type.builtin_type == Variant::INT && assigned_value_type.builtin_type == Variant::FLOAT) { parser->push_warning(p_assignment->assigned_value, GDScriptWarning::NARROWING_CONVERSION); @@ -2638,6 +2643,7 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool p_is_a } else { reduce_expression(subscript->base); base_type = subscript->base->get_datatype(); + is_self = subscript->base->type == GDScriptParser::Node::SELF; } } else { // Invalid call. Error already sent in parser. @@ -4235,9 +4241,6 @@ GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator } GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator p_operation, const GDScriptParser::DataType &p_a, const GDScriptParser::DataType &p_b, bool &r_valid, const GDScriptParser::Node *p_source) { - GDScriptParser::DataType result; - result.kind = GDScriptParser::DataType::VARIANT; - Variant::Type a_type = p_a.builtin_type; Variant::Type b_type = p_b.builtin_type; @@ -4257,28 +4260,18 @@ GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator } Variant::ValidatedOperatorEvaluator op_eval = Variant::get_validated_operator_evaluator(p_operation, a_type, b_type); - 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) { + GDScriptParser::DataType result; + if (validated) { r_valid = true; - result.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED; + result.type_source = hard_operation ? GDScriptParser::DataType::ANNOTATED_INFERRED : GDScriptParser::DataType::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; + } else { + r_valid = !hard_operation; 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); } return result; @@ -4454,6 +4447,46 @@ void GDScriptAnalyzer::mark_node_unsafe(const GDScriptParser::Node *p_node) { #endif } +void GDScriptAnalyzer::downgrade_node_type_source(GDScriptParser::Node *p_node) { + GDScriptParser::IdentifierNode *identifier = nullptr; + if (p_node->type == GDScriptParser::Node::IDENTIFIER) { + identifier = static_cast<GDScriptParser::IdentifierNode *>(p_node); + } else if (p_node->type == GDScriptParser::Node::SUBSCRIPT) { + GDScriptParser::SubscriptNode *subscript = static_cast<GDScriptParser::SubscriptNode *>(p_node); + if (subscript->is_attribute) { + identifier = subscript->attribute; + } + } + if (identifier == nullptr) { + return; + } + + GDScriptParser::Node *source = nullptr; + switch (identifier->source) { + case GDScriptParser::IdentifierNode::MEMBER_VARIABLE: { + source = identifier->variable_source; + } break; + case GDScriptParser::IdentifierNode::FUNCTION_PARAMETER: { + source = identifier->parameter_source; + } break; + case GDScriptParser::IdentifierNode::LOCAL_VARIABLE: { + source = identifier->variable_source; + } break; + case GDScriptParser::IdentifierNode::LOCAL_ITERATOR: { + source = identifier->bind_source; + } break; + default: + break; + } + if (source == nullptr) { + return; + } + + GDScriptParser::DataType datatype; + datatype.kind = GDScriptParser::DataType::VARIANT; + source->set_datatype(datatype); +} + void GDScriptAnalyzer::mark_lambda_use_self() { for (GDScriptParser::LambdaNode *lambda : lambda_stack) { lambda->use_self = true; diff --git a/modules/gdscript/gdscript_analyzer.h b/modules/gdscript/gdscript_analyzer.h index da7b7ddb75..b22d47982f 100644 --- a/modules/gdscript/gdscript_analyzer.h +++ b/modules/gdscript/gdscript_analyzer.h @@ -120,6 +120,7 @@ class GDScriptAnalyzer { bool is_type_compatible(const GDScriptParser::DataType &p_target, const GDScriptParser::DataType &p_source, bool p_allow_implicit_conversion = false, const GDScriptParser::Node *p_source_node = nullptr); void push_error(const String &p_message, const GDScriptParser::Node *p_origin = nullptr); void mark_node_unsafe(const GDScriptParser::Node *p_node); + void downgrade_node_type_source(GDScriptParser::Node *p_node); void mark_lambda_use_self(); bool class_exists(const StringName &p_class) const; Ref<GDScriptParserRef> get_parser_for(const String &p_path); diff --git a/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.gd b/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.gd new file mode 100644 index 0000000000..664e364493 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.gd @@ -0,0 +1,3 @@ +func test(): + var foo: bool = true + foo += 'bar' diff --git a/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.out b/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.out new file mode 100644 index 0000000000..358b096a64 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/errors/incompatible_assignment.out @@ -0,0 +1,2 @@ +GDTEST_ANALYZER_ERROR +Invalid operands "bool" and "String" for assignment operator. diff --git a/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.gd b/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.gd new file mode 100644 index 0000000000..2d2c2bef19 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.gd @@ -0,0 +1,19 @@ +func test(): + var one_0 = 0 + one_0 = 1 + var one_1 := one_0 + print(one_1) + + var two: Variant = 0 + two += 2 + print(two) + + var three_0: Variant = 1 + var three_1: int = 2 + three_0 += three_1 + print(three_0) + + var four_0: int = 3 + var four_1: Variant = 1 + four_0 += four_1 + print(four_0) diff --git a/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.out b/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.out new file mode 100644 index 0000000000..7536c38490 --- /dev/null +++ b/modules/gdscript/tests/scripts/analyzer/features/assignments_with_untyped.out @@ -0,0 +1,5 @@ +GDTEST_OK +1 +2 +3 +4 |