diff options
Diffstat (limited to 'modules/gdscript/gdscript_analyzer.cpp')
-rw-r--r-- | modules/gdscript/gdscript_analyzer.cpp | 255 |
1 files changed, 134 insertions, 121 deletions
diff --git a/modules/gdscript/gdscript_analyzer.cpp b/modules/gdscript/gdscript_analyzer.cpp index 943a49060f..aa2fa67ef2 100644 --- a/modules/gdscript/gdscript_analyzer.cpp +++ b/modules/gdscript/gdscript_analyzer.cpp @@ -30,12 +30,12 @@ #include "gdscript_analyzer.h" -#include "core/class_db.h" -#include "core/hash_map.h" +#include "core/config/project_settings.h" #include "core/io/resource_loader.h" +#include "core/object/class_db.h" +#include "core/object/script_language.h" #include "core/os/file_access.h" -#include "core/project_settings.h" -#include "core/script_language.h" +#include "core/templates/hash_map.h" #include "gdscript.h" // TODO: Move this to a central location (maybe core?). @@ -577,6 +577,12 @@ void GDScriptAnalyzer::resolve_class_interface(GDScriptParser::ClassNode *p_clas GDScriptParser::DataType datatype = member.constant->get_datatype(); if (member.constant->initializer) { + if (member.constant->initializer->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(member.constant->initializer)); + } else if (member.constant->initializer->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(member.constant->initializer)); + } + if (!member.constant->initializer->is_constant) { push_error(R"(Initializer for a constant must be a constant expression.)", member.constant->initializer); } @@ -972,17 +978,19 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { if (!call->arguments[i]->is_constant) { all_is_constant = false; - } else { + } else if (all_is_constant) { args.write[i] = call->arguments[i]->reduced_value; } GDScriptParser::DataType arg_type = call->arguments[i]->get_datatype(); - if (arg_type.kind != GDScriptParser::DataType::BUILTIN) { - all_is_constant = false; - push_error(vformat(R"*(Invalid argument for "range()" call. Argument %d should be int or float but "%s" was given.)*", i + 1, arg_type.to_string()), call->arguments[i]); - } else if (arg_type.builtin_type != Variant::INT && arg_type.builtin_type != Variant::FLOAT) { - all_is_constant = false; - push_error(vformat(R"*(Invalid argument for "range()" call. Argument %d should be int or float but "%s" was given.)*", i + 1, arg_type.to_string()), call->arguments[i]); + if (!arg_type.is_variant()) { + if (arg_type.kind != GDScriptParser::DataType::BUILTIN) { + all_is_constant = false; + push_error(vformat(R"*(Invalid argument for "range()" call. Argument %d should be int or float but "%s" was given.)*", i + 1, arg_type.to_string()), call->arguments[i]); + } else if (arg_type.builtin_type != Variant::INT && arg_type.builtin_type != Variant::FLOAT) { + all_is_constant = false; + push_error(vformat(R"*(Invalid argument for "range()" call. Argument %d should be int or float but "%s" was given.)*", i + 1, arg_type.to_string()), call->arguments[i]); + } } } @@ -1005,11 +1013,15 @@ void GDScriptAnalyzer::resolve_for(GDScriptParser::ForNode *p_for) { } } - GDScriptParser::DataType list_type; - list_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; - list_type.kind = GDScriptParser::DataType::BUILTIN; - list_type.builtin_type = Variant::ARRAY; - p_for->list->set_datatype(list_type); + if (p_for->list->is_constant) { + p_for->list->set_datatype(type_from_variant(p_for->list->reduced_value, p_for->list)); + } else { + GDScriptParser::DataType list_type; + list_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; + list_type.kind = GDScriptParser::DataType::BUILTIN; + list_type.builtin_type = Variant::ARRAY; + p_for->list->set_datatype(list_type); + } } } } @@ -1113,6 +1125,11 @@ void GDScriptAnalyzer::resolve_constant(GDScriptParser::ConstantNode *p_constant GDScriptParser::DataType type; reduce_expression(p_constant->initializer); + if (p_constant->initializer->type == GDScriptParser::Node::ARRAY) { + const_fold_array(static_cast<GDScriptParser::ArrayNode *>(p_constant->initializer)); + } else if (p_constant->initializer->type == GDScriptParser::Node::DICTIONARY) { + const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(p_constant->initializer)); + } if (!p_constant->initializer->is_constant) { push_error(vformat(R"(Assigned value for constant "%s" isn't a constant expression.)", p_constant->identifier->name), p_constant->initializer); @@ -1422,22 +1439,9 @@ void GDScriptAnalyzer::reduce_expression(GDScriptParser::ExpressionNode *p_expre } void GDScriptAnalyzer::reduce_array(GDScriptParser::ArrayNode *p_array) { - bool all_is_constant = true; - for (int i = 0; i < p_array->elements.size(); i++) { GDScriptParser::ExpressionNode *element = p_array->elements[i]; reduce_expression(element); - all_is_constant = all_is_constant && element->is_constant; - } - - if (all_is_constant) { - Array array; - array.resize(p_array->elements.size()); - for (int i = 0; i < p_array->elements.size(); i++) { - array[i] = p_array->elements[i]->reduced_value; - } - p_array->is_constant = true; - p_array->reduced_value = array; } // It's array in any case. @@ -1705,7 +1709,27 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa call_type.native_type = function_name; // "Object". } - if (all_is_constant) { + bool safe_to_fold = true; + switch (builtin_type) { + // Those are stored by reference so not suited for compile-time construction. + // Because in this case they would be the same reference in all constructed values. + case Variant::OBJECT: + case Variant::PACKED_BYTE_ARRAY: + case Variant::PACKED_INT32_ARRAY: + case Variant::PACKED_INT64_ARRAY: + case Variant::PACKED_FLOAT32_ARRAY: + case Variant::PACKED_FLOAT64_ARRAY: + case Variant::PACKED_STRING_ARRAY: + case Variant::PACKED_VECTOR2_ARRAY: + case Variant::PACKED_VECTOR3_ARRAY: + case Variant::PACKED_COLOR_ARRAY: + safe_to_fold = false; + break; + default: + break; + } + + if (all_is_constant && safe_to_fold) { // Construct here. Vector<const Variant *> args; for (int i = 0; i < p_call->arguments.size(); i++) { @@ -1713,7 +1737,8 @@ void GDScriptAnalyzer::reduce_call(GDScriptParser::CallNode *p_call, bool is_awa } Callable::CallError err; - Variant value = Variant::construct(builtin_type, (const Variant **)args.ptr(), args.size(), err); + Variant value; + Variant::construct(builtin_type, value, (const Variant **)args.ptr(), args.size(), err); switch (err.error) { case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: @@ -1984,8 +2009,6 @@ void GDScriptAnalyzer::reduce_cast(GDScriptParser::CastNode *p_cast) { } void GDScriptAnalyzer::reduce_dictionary(GDScriptParser::DictionaryNode *p_dictionary) { - bool all_is_constant = true; - HashMap<Variant, GDScriptParser::ExpressionNode *, VariantHasher, VariantComparator> elements; for (int i = 0; i < p_dictionary->elements.size(); i++) { @@ -1994,7 +2017,6 @@ void GDScriptAnalyzer::reduce_dictionary(GDScriptParser::DictionaryNode *p_dicti reduce_expression(element.key); } reduce_expression(element.value); - all_is_constant = all_is_constant && element.key->is_constant && element.value->is_constant; if (element.key->is_constant) { if (elements.has(element.key->reduced_value)) { @@ -2005,16 +2027,6 @@ void GDScriptAnalyzer::reduce_dictionary(GDScriptParser::DictionaryNode *p_dicti } } - if (all_is_constant) { - Dictionary dict; - for (int i = 0; i < p_dictionary->elements.size(); i++) { - const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i]; - dict[element.key->reduced_value] = element.value->reduced_value; - } - p_dictionary->is_constant = true; - p_dictionary->reduced_value = dict; - } - // It's dictionary in any case. GDScriptParser::DataType dict_type; dict_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT; @@ -2039,9 +2051,17 @@ void GDScriptAnalyzer::reduce_get_node(GDScriptParser::GetNodeNode *p_get_node) p_get_node->set_datatype(result); } -GDScriptParser::DataType GDScriptAnalyzer::make_global_class_meta_type(const StringName &p_class_name) { +GDScriptParser::DataType GDScriptAnalyzer::make_global_class_meta_type(const StringName &p_class_name, const GDScriptParser::Node *p_source) { Ref<GDScriptParserRef> ref = get_parser_for(ScriptServer::get_global_class_path(p_class_name)); - ref->raise_status(GDScriptParserRef::INTERFACE_SOLVED); + 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; @@ -2090,7 +2110,8 @@ void GDScriptAnalyzer::reduce_identifier_from_base(GDScriptParser::IdentifierNod } default: { Callable::CallError temp; - Variant dummy = Variant::construct(base.builtin_type, nullptr, 0, temp); + Variant dummy; + Variant::construct(base.builtin_type, dummy, nullptr, 0, temp); List<PropertyInfo> properties; dummy.get_property_list(&properties); for (const List<PropertyInfo>::Element *E = properties.front(); E != nullptr; E = E->next()) { @@ -2294,10 +2315,12 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident StringName name = p_identifier->name; p_identifier->source = GDScriptParser::IdentifierNode::UNDEFINED_SOURCE; - // Check globals. - if (GDScriptParser::get_builtin_type(name) < Variant::VARIANT_MAX) { + // 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() + Variant::Type builtin_type = GDScriptParser::get_builtin_type(name); + if (builtin_type != Variant::OBJECT && builtin_type < Variant::VARIANT_MAX) { if (can_be_builtin) { - p_identifier->set_datatype(make_builtin_meta_type(GDScriptParser::get_builtin_type(name))); + p_identifier->set_datatype(make_builtin_meta_type(builtin_type)); return; } else { push_error(R"(Builtin type cannot be used as a name on its own.)", p_identifier); @@ -2310,7 +2333,7 @@ void GDScriptAnalyzer::reduce_identifier(GDScriptParser::IdentifierNode *p_ident } if (ScriptServer::is_global_class(name)) { - p_identifier->set_datatype(make_global_class_meta_type(name)); + p_identifier->set_datatype(make_global_class_meta_type(name, p_identifier)); return; } @@ -2451,7 +2474,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri if (p_subscript->base->is_constant) { // Just try to get it. bool valid = false; - Variant value = p_subscript->base->reduced_value.get_named(p_subscript->attribute->name, &valid); + Variant value = p_subscript->base->reduced_value.get_named(p_subscript->attribute->name, valid); if (!valid) { push_error(vformat(R"(Cannot get member "%s" from "%s".)", p_subscript->attribute->name, p_subscript->base->reduced_value), p_subscript->index); } else { @@ -2552,7 +2575,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri error = index_type.builtin_type != Variant::INT && index_type.builtin_type != Variant::STRING; break; // Don't support indexing, but we will check it later. - case Variant::_RID: + case Variant::RID: case Variant::BOOL: case Variant::CALLABLE: case Variant::FLOAT: @@ -2585,7 +2608,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri switch (base_type.builtin_type) { // Can't index at all. - case Variant::_RID: + case Variant::RID: case Variant::BOOL: case Variant::CALLABLE: case Variant::FLOAT: @@ -2727,7 +2750,7 @@ void GDScriptAnalyzer::reduce_unary_op(GDScriptParser::UnaryOpNode *p_unary_op) mark_node_unsafe(p_unary_op); } else { bool valid = false; - result = get_operation_type(p_unary_op->variant_op, p_unary_op->operand->get_datatype(), p_unary_op->operand->get_datatype(), valid, p_unary_op); + result = get_operation_type(p_unary_op->variant_op, p_unary_op->operand->get_datatype(), valid, p_unary_op); if (!valid) { push_error(vformat(R"(Invalid operand of type "%s" for unary operator "%s".)", p_unary_op->operand->get_datatype().to_string(), Variant::get_operator_name(p_unary_op->variant_op)), p_unary_op->operand); @@ -2737,6 +2760,46 @@ void GDScriptAnalyzer::reduce_unary_op(GDScriptParser::UnaryOpNode *p_unary_op) p_unary_op->set_datatype(result); } +void GDScriptAnalyzer::const_fold_array(GDScriptParser::ArrayNode *p_array) { + bool all_is_constant = true; + + for (int i = 0; i < p_array->elements.size(); i++) { + GDScriptParser::ExpressionNode *element = p_array->elements[i]; + all_is_constant = all_is_constant && element->is_constant; + if (!all_is_constant) { + return; + } + } + + Array array; + array.resize(p_array->elements.size()); + for (int i = 0; i < p_array->elements.size(); i++) { + array[i] = p_array->elements[i]->reduced_value; + } + p_array->is_constant = true; + p_array->reduced_value = array; +} + +void GDScriptAnalyzer::const_fold_dictionary(GDScriptParser::DictionaryNode *p_dictionary) { + bool all_is_constant = true; + + for (int i = 0; i < p_dictionary->elements.size(); i++) { + const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i]; + all_is_constant = all_is_constant && element.key->is_constant && element.value->is_constant; + if (!all_is_constant) { + return; + } + } + + Dictionary dict; + for (int i = 0; i < p_dictionary->elements.size(); i++) { + const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i]; + dict[element.key->reduced_value] = element.value->reduced_value; + } + p_dictionary->is_constant = true; + p_dictionary->reduced_value = dict; +} + GDScriptParser::DataType GDScriptAnalyzer::type_from_variant(const Variant &p_value, const GDScriptParser::Node *p_source) { GDScriptParser::DataType result; result.is_constant = true; @@ -2842,7 +2905,8 @@ bool GDScriptAnalyzer::get_function_signature(GDScriptParser::Node *p_source, GD if (p_base_type.kind == GDScriptParser::DataType::BUILTIN) { // Construct a base type to get methods. Callable::CallError err; - Variant dummy = Variant::construct(p_base_type.builtin_type, nullptr, 0, err); + Variant dummy; + Variant::construct(p_base_type.builtin_type, dummy, nullptr, 0, err); if (err.error != Callable::CallError::CALL_OK) { ERR_FAIL_V_MSG(false, "Could not construct base Variant type."); } @@ -3052,81 +3116,31 @@ bool GDScriptAnalyzer::is_shadowing(GDScriptParser::IdentifierNode *p_local, con } #endif -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) { - // This function creates dummy variant values and apply the operation to those. Less error-prone than keeping a table of valid operations. +GDScriptParser::DataType GDScriptAnalyzer::get_operation_type(Variant::Operator p_operation, const GDScriptParser::DataType &p_a, bool &r_valid, const GDScriptParser::Node *p_source) { + // Unary version. + GDScriptParser::DataType nil_type; + nil_type.builtin_type = Variant::NIL; + return get_operation_type(p_operation, p_a, nil_type, r_valid, p_source); +} +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; - Variant a; - REF a_ref; - if (a_type == Variant::OBJECT) { - a_ref.instance(); - a = a_ref; - } else { - Callable::CallError err; - a = Variant::construct(a_type, nullptr, 0, err); - if (err.error != Callable::CallError::CALL_OK) { - r_valid = false; - ERR_FAIL_V_MSG(result, vformat("Could not construct value of type %s", Variant::get_type_name(a_type))); - } - } - Variant b; - REF b_ref; - if (b_type == Variant::OBJECT) { - b_ref.instance(); - b = b_ref; - } else { - Callable::CallError err; - b = Variant::construct(b_type, nullptr, 0, err); - if (err.error != Callable::CallError::CALL_OK) { - r_valid = false; - ERR_FAIL_V_MSG(result, vformat("Could not construct value of type %s", Variant::get_type_name(b_type))); - } - } - - // Avoid division by zero. - switch (b_type) { - case Variant::INT: - b = 1; - break; - case Variant::FLOAT: - b = 1.0; - break; - case Variant::VECTOR2: - b = Vector2(1.0, 1.0); - break; - case Variant::VECTOR2I: - b = Vector2i(1, 1); - break; - case Variant::VECTOR3: - b = Vector3(1.0, 1.0, 1.0); - break; - case Variant::VECTOR3I: - b = Vector3i(1, 1, 1); - break; - case Variant::COLOR: - b = Color(1.0, 1.0, 1.0, 1.0); - break; - default: - // No change needed. - break; - } + Variant::ValidatedOperatorEvaluator op_eval = Variant::get_validated_operator_evaluator(p_operation, a_type, b_type); - // Avoid error in formatting operator (%) where it doesn't find a placeholder. - if (a_type == Variant::STRING && b_type != Variant::ARRAY) { - a = String("%s"); + if (op_eval == nullptr) { + r_valid = false; + return result; } - Variant ret; - Variant::evaluate(p_operation, a, b, ret, r_valid); + r_valid = true; - if (r_valid) { - return type_from_variant(ret, p_source); - } + result.kind = GDScriptParser::DataType::BUILTIN; + result.builtin_type = Variant::get_operator_return_type(p_operation, a_type, b_type); return result; } @@ -3328,7 +3342,6 @@ Error GDScriptAnalyzer::resolve_program() { } depended_parsers[E->get()]->raise_status(GDScriptParserRef::FULLY_SOLVED); } - depended_parsers.clear(); return parser->errors.empty() ? OK : ERR_PARSE_ERROR; } |