diff options
Diffstat (limited to 'modules/gdscript/gdscript_parser.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_parser.cpp | 513 |
1 files changed, 406 insertions, 107 deletions
diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index a77fb14064..e103d86b15 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -31,9 +31,9 @@ #include "gdscript_parser.h" #include "core/config/project_settings.h" +#include "core/io/file_access.h" #include "core/io/resource_loader.h" #include "core/math/math_defs.h" -#include "core/os/file_access.h" #include "gdscript.h" #ifdef DEBUG_ENABLED @@ -61,9 +61,9 @@ Variant::Type GDScriptParser::get_builtin_type(const StringName &p_type) { builtin_types["Vector3i"] = Variant::VECTOR3I; builtin_types["AABB"] = Variant::AABB; builtin_types["Plane"] = Variant::PLANE; - builtin_types["Quat"] = Variant::QUAT; + builtin_types["Quaternion"] = Variant::QUATERNION; builtin_types["Basis"] = Variant::BASIS; - builtin_types["Transform"] = Variant::TRANSFORM; + builtin_types["Transform3D"] = Variant::TRANSFORM3D; builtin_types["Color"] = Variant::COLOR; builtin_types["RID"] = Variant::RID; builtin_types["Object"] = Variant::OBJECT; @@ -94,8 +94,43 @@ Variant::Type GDScriptParser::get_builtin_type(const StringName &p_type) { return Variant::VARIANT_MAX; } +// TODO: Move this to a central location (maybe core?). +static HashMap<StringName, StringName> underscore_map; +static const char *underscore_classes[] = { + "ClassDB", + "Directory", + "Engine", + "File", + "Geometry", + "GodotSharp", + "JSON", + "Marshalls", + "Mutex", + "OS", + "ResourceLoader", + "ResourceSaver", + "Semaphore", + "Thread", + "VisualScriptEditor", + nullptr, +}; +StringName GDScriptParser::get_real_class_name(const StringName &p_source) { + if (underscore_map.is_empty()) { + const char **class_name = underscore_classes; + while (*class_name != nullptr) { + underscore_map[*class_name] = String("_") + *class_name; + class_name++; + } + } + if (underscore_map.has(p_source)) { + return underscore_map[p_source]; + } + return p_source; +} + void GDScriptParser::cleanup() { builtin_types.clear(); + underscore_map.clear(); } void GDScriptParser::get_annotation_list(List<MethodInfo> *r_annotations) const { @@ -109,12 +144,11 @@ void GDScriptParser::get_annotation_list(List<MethodInfo> *r_annotations) const GDScriptParser::GDScriptParser() { // Register valid annotations. // TODO: Should this be static? - // TODO: Validate applicable types (e.g. a VARIABLE annotation that only applies to string variables). register_annotation(MethodInfo("@tool"), AnnotationInfo::SCRIPT, &GDScriptParser::tool_annotation); register_annotation(MethodInfo("@icon", { Variant::STRING, "icon_path" }), AnnotationInfo::SCRIPT, &GDScriptParser::icon_annotation); register_annotation(MethodInfo("@onready"), AnnotationInfo::VARIABLE, &GDScriptParser::onready_annotation); // Export annotations. - register_annotation(MethodInfo("@export"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_TYPE_STRING, Variant::NIL>); + register_annotation(MethodInfo("@export"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_NONE, Variant::NIL>); register_annotation(MethodInfo("@export_enum", { Variant::STRING, "names" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_ENUM, Variant::INT>, 0, true); register_annotation(MethodInfo("@export_file", { Variant::STRING, "filter" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_FILE, Variant::STRING>, 1, true); register_annotation(MethodInfo("@export_dir"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_DIR, Variant::STRING>); @@ -123,22 +157,18 @@ GDScriptParser::GDScriptParser() { register_annotation(MethodInfo("@export_multiline"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_MULTILINE_TEXT, Variant::STRING>); register_annotation(MethodInfo("@export_placeholder"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_PLACEHOLDER_TEXT, Variant::STRING>); register_annotation(MethodInfo("@export_range", { Variant::FLOAT, "min" }, { Variant::FLOAT, "max" }, { Variant::FLOAT, "step" }, { Variant::STRING, "slider1" }, { Variant::STRING, "slider2" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_RANGE, Variant::FLOAT>, 3); - register_annotation(MethodInfo("@export_exp_range", { Variant::FLOAT, "min" }, { Variant::FLOAT, "max" }, { Variant::FLOAT, "step" }, { Variant::STRING, "slider1" }, { Variant::STRING, "slider2" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_EXP_RANGE, Variant::FLOAT>, 3); register_annotation(MethodInfo("@export_exp_easing", { Variant::STRING, "hint1" }, { Variant::STRING, "hint2" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_EXP_EASING, Variant::FLOAT>, 2); register_annotation(MethodInfo("@export_color_no_alpha"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_COLOR_NO_ALPHA, Variant::COLOR>); register_annotation(MethodInfo("@export_node_path", { Variant::STRING, "type" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_NODE_PATH_VALID_TYPES, Variant::NODE_PATH>, 1, true); register_annotation(MethodInfo("@export_flags", { Variant::STRING, "names" }), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_FLAGS, Variant::INT>, 0, true); register_annotation(MethodInfo("@export_flags_2d_render"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_RENDER, Variant::INT>); register_annotation(MethodInfo("@export_flags_2d_physics"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_PHYSICS, Variant::INT>); + register_annotation(MethodInfo("@export_flags_2d_navigation"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_NAVIGATION, Variant::INT>); register_annotation(MethodInfo("@export_flags_3d_render"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_RENDER, Variant::INT>); register_annotation(MethodInfo("@export_flags_3d_physics"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_PHYSICS, Variant::INT>); + register_annotation(MethodInfo("@export_flags_3d_navigation"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_NAVIGATION, Variant::INT>); // Networking. - register_annotation(MethodInfo("@remote"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_REMOTE>); - register_annotation(MethodInfo("@master"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_MASTER>); - register_annotation(MethodInfo("@puppet"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_PUPPET>); - register_annotation(MethodInfo("@remotesync"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_REMOTESYNC>); - register_annotation(MethodInfo("@mastersync"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_MASTERSYNC>); - register_annotation(MethodInfo("@puppetsync"), AnnotationInfo::VARIABLE | AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_PUPPETSYNC>); + register_annotation(MethodInfo("@rpc", { Variant::STRING, "mode" }, { Variant::STRING, "sync" }, { Variant::STRING, "transfer_mode" }, { Variant::INT, "transfer_channel" }), AnnotationInfo::FUNCTION, &GDScriptParser::network_annotations<MultiplayerAPI::RPC_MODE_MASTER>, 4, true); // TODO: Warning annotations. } @@ -366,6 +396,8 @@ Error GDScriptParser::parse(const String &p_source_code, const String &p_script_ } GDScriptTokenizer::Token GDScriptParser::advance() { + lambda_ended = false; // Empty marker since we're past the end in any case. + if (current.type == GDScriptTokenizer::Token::TK_EOF) { ERR_FAIL_COND_V_MSG(current.type == GDScriptTokenizer::Token::TK_EOF, current, "GDScript parser bug: Trying to advance past the end of stream."); } @@ -392,7 +424,7 @@ bool GDScriptParser::match(GDScriptTokenizer::Token::Type p_token_type) { return true; } -bool GDScriptParser::check(GDScriptTokenizer::Token::Type p_token_type) { +bool GDScriptParser::check(GDScriptTokenizer::Token::Type p_token_type) const { if (p_token_type == GDScriptTokenizer::Token::IDENTIFIER) { return current.is_identifier(); } @@ -407,7 +439,7 @@ bool GDScriptParser::consume(GDScriptTokenizer::Token::Type p_token_type, const return false; } -bool GDScriptParser::is_at_end() { +bool GDScriptParser::is_at_end() const { return check(GDScriptTokenizer::Token::TK_EOF); } @@ -458,16 +490,34 @@ void GDScriptParser::pop_multiline() { tokenizer.set_multiline_mode(multiline_stack.size() > 0 ? multiline_stack.back()->get() : false); } -bool GDScriptParser::is_statement_end() { +bool GDScriptParser::is_statement_end_token() const { return check(GDScriptTokenizer::Token::NEWLINE) || check(GDScriptTokenizer::Token::SEMICOLON) || check(GDScriptTokenizer::Token::TK_EOF); } +bool GDScriptParser::is_statement_end() const { + return lambda_ended || in_lambda || is_statement_end_token(); +} + void GDScriptParser::end_statement(const String &p_context) { bool found = false; while (is_statement_end() && !is_at_end()) { // Remove sequential newlines/semicolons. + if (is_statement_end_token()) { + // Only consume if this is an actual token. + advance(); + } else if (lambda_ended) { + lambda_ended = false; // Consume this "token". + found = true; + break; + } else { + if (!found) { + lambda_ended = true; // Mark the lambda as done since we found something else to end the statement. + found = true; + } + break; + } + found = true; - advance(); } if (!found && !is_at_end()) { push_error(vformat(R"(Expected end of statement after %s, found "%s" instead.)", p_context, current.get_name())); @@ -678,7 +728,6 @@ void GDScriptParser::parse_class_member(T *(GDScriptParser::*p_parse_function)() while (!annotation_stack.is_empty()) { AnnotationNode *last_annotation = annotation_stack.back()->get(); if (last_annotation->applies_to(p_target)) { - last_annotation->apply(this, member); member->annotations.push_front(last_annotation); annotation_stack.pop_back(); } else { @@ -776,6 +825,7 @@ GDScriptParser::VariableNode *GDScriptParser::parse_variable(bool p_allow_proper VariableNode *variable = alloc_node<VariableNode>(); variable->identifier = parse_identifier(); + variable->export_info.name = variable->identifier->name; if (match(GDScriptTokenizer::Token::COLON)) { if (check(GDScriptTokenizer::Token::NEWLINE)) { @@ -809,6 +859,9 @@ GDScriptParser::VariableNode *GDScriptParser::parse_variable(bool p_allow_proper if (match(GDScriptTokenizer::Token::EQUAL)) { // Initializer. variable->initializer = parse_expression(false); + if (variable->initializer == nullptr) { + push_error(R"(Expected expression for variable initial value after "=".)"); + } variable->assignments++; } @@ -822,8 +875,6 @@ GDScriptParser::VariableNode *GDScriptParser::parse_variable(bool p_allow_proper end_statement("variable declaration"); - variable->export_info.name = variable->identifier->name; - return variable; } @@ -1116,7 +1167,7 @@ GDScriptParser::EnumNode *GDScriptParser::parse_enum() { consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected closing "}" for enum.)"); #ifdef TOOLS_ENABLED - // Enum values documentaion. + // Enum values documentation. for (int i = 0; i < enum_node->values.size(); i++) { if (i == enum_node->values.size() - 1) { // If close bracket is same line as last value. @@ -1145,36 +1196,7 @@ GDScriptParser::EnumNode *GDScriptParser::parse_enum() { return enum_node; } -GDScriptParser::FunctionNode *GDScriptParser::parse_function() { - bool _static = false; - if (previous.type == GDScriptTokenizer::Token::STATIC) { - // TODO: Improve message if user uses "static" with "var" or "const" - if (!consume(GDScriptTokenizer::Token::FUNC, R"(Expected "func" after "static".)")) { - return nullptr; - } - _static = true; - } - - FunctionNode *function = alloc_node<FunctionNode>(); - make_completion_context(COMPLETION_OVERRIDE_METHOD, function); - - if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected function name after "func".)")) { - return nullptr; - } - - FunctionNode *previous_function = current_function; - current_function = function; - - function->identifier = parse_identifier(); - function->is_static = _static; - - push_multiline(true); - consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after function name.)"); - - SuiteNode *body = alloc_node<SuiteNode>(); - SuiteNode *previous_suite = current_suite; - current_suite = body; - +void GDScriptParser::parse_function_signature(FunctionNode *p_function, SuiteNode *p_body, const String &p_type) { if (!check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE) && !is_at_end()) { bool default_used = false; do { @@ -1194,29 +1216,61 @@ GDScriptParser::FunctionNode *GDScriptParser::parse_function() { continue; } } - if (function->parameters_indices.has(parameter->identifier->name)) { - push_error(vformat(R"(Parameter with name "%s" was already declared for this function.)", parameter->identifier->name)); + if (p_function->parameters_indices.has(parameter->identifier->name)) { + push_error(vformat(R"(Parameter with name "%s" was already declared for this %s.)", parameter->identifier->name, p_type)); } else { - function->parameters_indices[parameter->identifier->name] = function->parameters.size(); - function->parameters.push_back(parameter); - body->add_local(parameter); + p_function->parameters_indices[parameter->identifier->name] = p_function->parameters.size(); + p_function->parameters.push_back(parameter); + p_body->add_local(parameter, current_function); } } while (match(GDScriptTokenizer::Token::COMMA)); } pop_multiline(); - consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected closing ")" after function parameters.)*"); + consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, vformat(R"*(Expected closing ")" after %s parameters.)*", p_type)); if (match(GDScriptTokenizer::Token::FORWARD_ARROW)) { - make_completion_context(COMPLETION_TYPE_NAME_OR_VOID, function); - function->return_type = parse_type(true); - if (function->return_type == nullptr) { + make_completion_context(COMPLETION_TYPE_NAME_OR_VOID, p_function); + p_function->return_type = parse_type(true); + if (p_function->return_type == nullptr) { push_error(R"(Expected return type or "void" after "->".)"); } } // TODO: Improve token consumption so it synchronizes to a statement boundary. This way we can get into the function body with unrecognized tokens. - consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after function declaration.)"); + consume(GDScriptTokenizer::Token::COLON, vformat(R"(Expected ":" after %s declaration.)", p_type)); +} + +GDScriptParser::FunctionNode *GDScriptParser::parse_function() { + bool _static = false; + if (previous.type == GDScriptTokenizer::Token::STATIC) { + // TODO: Improve message if user uses "static" with "var" or "const" + if (!consume(GDScriptTokenizer::Token::FUNC, R"(Expected "func" after "static".)")) { + return nullptr; + } + _static = true; + } + + FunctionNode *function = alloc_node<FunctionNode>(); + make_completion_context(COMPLETION_OVERRIDE_METHOD, function); + + if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected function name after "func".)")) { + return nullptr; + } + + FunctionNode *previous_function = current_function; + current_function = function; + + function->identifier = parse_identifier(); + function->is_static = _static; + + SuiteNode *body = alloc_node<SuiteNode>(); + SuiteNode *previous_suite = current_suite; + current_suite = body; + + push_multiline(true); + consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after function name.)"); + parse_function_signature(function, body, "function"); current_suite = previous_suite; function->body = parse_suite("function declaration", body); @@ -1302,29 +1356,34 @@ bool GDScriptParser::register_annotation(const MethodInfo &p_info, uint32_t p_ta return true; } -GDScriptParser::SuiteNode *GDScriptParser::parse_suite(const String &p_context, SuiteNode *p_suite) { +GDScriptParser::SuiteNode *GDScriptParser::parse_suite(const String &p_context, SuiteNode *p_suite, bool p_for_lambda) { SuiteNode *suite = p_suite != nullptr ? p_suite : alloc_node<SuiteNode>(); suite->parent_block = current_suite; + suite->parent_function = current_function; current_suite = suite; bool multiline = false; - if (check(GDScriptTokenizer::Token::NEWLINE)) { + if (match(GDScriptTokenizer::Token::NEWLINE)) { multiline = true; } if (multiline) { - consume(GDScriptTokenizer::Token::NEWLINE, vformat(R"(Expected newline after %s.)", p_context)); - if (!consume(GDScriptTokenizer::Token::INDENT, vformat(R"(Expected indented block after %s.)", p_context))) { current_suite = suite->parent_block; return suite; } } + int error_count = 0; + do { Node *statement = parse_statement(); if (statement == nullptr) { + if (error_count++ > 100) { + push_error("Too many statement errors.", suite); + break; + } continue; } suite->statements.push_back(statement); @@ -1337,7 +1396,7 @@ GDScriptParser::SuiteNode *GDScriptParser::parse_suite(const String &p_context, if (local.type != SuiteNode::Local::UNDEFINED) { push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", local.get_name(), variable->identifier->name)); } - current_suite->add_local(variable); + current_suite->add_local(variable, current_function); break; } case Node::CONSTANT: { @@ -1352,19 +1411,29 @@ GDScriptParser::SuiteNode *GDScriptParser::parse_suite(const String &p_context, } push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", name, constant->identifier->name)); } - current_suite->add_local(constant); + current_suite->add_local(constant, current_function); break; } default: break; } - } while (multiline && !check(GDScriptTokenizer::Token::DEDENT) && !is_at_end()); + } while (multiline && !check(GDScriptTokenizer::Token::DEDENT) && !lambda_ended && !is_at_end()); if (multiline) { - consume(GDScriptTokenizer::Token::DEDENT, vformat(R"(Missing unindent at the end of %s.)", p_context)); + if (!lambda_ended) { + consume(GDScriptTokenizer::Token::DEDENT, vformat(R"(Missing unindent at the end of %s.)", p_context)); + + } else { + match(GDScriptTokenizer::Token::DEDENT); + } + } else if (previous.type == GDScriptTokenizer::Token::SEMICOLON) { + consume(GDScriptTokenizer::Token::NEWLINE, vformat(R"(Expected newline after ";" at the end of %s.)", p_context)); } + if (p_for_lambda) { + lambda_ended = true; + } current_suite = suite->parent_block; return suite; } @@ -1421,6 +1490,10 @@ GDScriptParser::Node *GDScriptParser::parse_statement() { push_error(R"(Constructor cannot return a value.)"); } n_return->return_value = parse_expression(false); + } else if (in_lambda && !is_statement_end_token()) { + // Try to parse it anyway as this might not be the statement end in a lambda. + // If this fails the expression will be nullptr, but that's the same as no return, so it's fine. + n_return->return_value = parse_expression(false); } result = n_return; @@ -1449,10 +1522,18 @@ GDScriptParser::Node *GDScriptParser::parse_statement() { default: { // Expression statement. ExpressionNode *expression = parse_expression(true); // Allow assignment here. + bool has_ended_lambda = false; if (expression == nullptr) { - push_error(vformat(R"(Expected statement, found "%s" instead.)", previous.get_name())); + if (in_lambda) { + // If it's not a valid expression beginning, it might be the continuation of the outer expression where this lambda is. + lambda_ended = true; + has_ended_lambda = true; + } else { + push_error(vformat(R"(Expected statement, found "%s" instead.)", previous.get_name())); + } } end_statement("expression"); + lambda_ended = lambda_ended || has_ended_lambda; result = expression; #ifdef DEBUG_ENABLED @@ -1476,7 +1557,7 @@ GDScriptParser::Node *GDScriptParser::parse_statement() { if (unreachable && result != nullptr) { current_suite->has_unreachable_code = true; if (current_function) { - push_warning(result, GDScriptWarning::UNREACHABLE_CODE, current_function->identifier->name); + push_warning(result, GDScriptWarning::UNREACHABLE_CODE, current_function->identifier ? current_function->identifier->name : "<anonymous lambda>"); } else { // TODO: Properties setters and getters with unreachable code are not being warned } @@ -1561,7 +1642,7 @@ GDScriptParser::ForNode *GDScriptParser::parse_for() { SuiteNode *suite = alloc_node<SuiteNode>(); if (n_for->variable) { - suite->add_local(SuiteNode::Local(n_for->variable)); + suite->add_local(SuiteNode::Local(n_for->variable, current_function)); } suite->parent_for = n_for; @@ -1716,7 +1797,7 @@ GDScriptParser::MatchBranchNode *GDScriptParser::parse_match_branch() { branch->patterns[0]->binds.get_key_list(&binds); for (List<StringName>::Element *E = binds.front(); E != nullptr; E = E->next()) { - SuiteNode::Local local(branch->patterns[0]->binds[E->get()]); + SuiteNode::Local local(branch->patterns[0]->binds[E->get()], current_function); suite->add_local(local); } } @@ -1916,7 +1997,7 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_precedence(Precedence p_pr // Completion can appear whenever an expression is expected. make_completion_context(COMPLETION_IDENTIFIER, nullptr); - GDScriptTokenizer::Token token = advance(); + GDScriptTokenizer::Token token = current; ParseFunction prefix_rule = get_rule(token.type)->prefix; if (prefix_rule == nullptr) { @@ -1924,6 +2005,8 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_precedence(Precedence p_pr return nullptr; } + advance(); // Only consume the token if there's a valid rule. + ExpressionNode *previous_operand = (this->*prefix_rule)(nullptr, p_can_assign); while (p_precedence <= get_rule(current.type)->precedence) { @@ -1965,6 +2048,8 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_identifier(ExpressionNode if (current_suite != nullptr && current_suite->has_local(identifier->name)) { const SuiteNode::Local &declaration = current_suite->get_local(identifier->name); + + identifier->source_function = declaration.source_function; switch (declaration.type) { case SuiteNode::Local::CONSTANT: identifier->source = IdentifierNode::LOCAL_CONSTANT; @@ -2018,6 +2103,9 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_self(ExpressionNode *p_pre if (current_function && current_function->is_static) { push_error(R"(Cannot use "self" inside a static function.)"); } + if (in_lambda) { + push_error(R"(Cannot use "self" inside a lambda.)"); + } SelfNode *self = alloc_node<SelfNode>(); self->current_class = current_class; return self; @@ -2035,10 +2123,10 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_builtin_constant(Expressio constant->value = Math_TAU; break; case GDScriptTokenizer::Token::CONST_INF: - constant->value = Math_INF; + constant->value = INFINITY; break; case GDScriptTokenizer::Token::CONST_NAN: - constant->value = Math_NAN; + constant->value = NAN; break; default: return nullptr; // Unreachable. @@ -2080,6 +2168,17 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_unary_operator(ExpressionN return operation; } +GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_not_in_operator(ExpressionNode *p_previous_operand, bool p_can_assign) { + // check that NOT is followed by IN by consuming it before calling parse_binary_operator which will only receive a plain IN + consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "not" in content-test operator.)"); + ExpressionNode *in_operation = parse_binary_operator(p_previous_operand, p_can_assign); + UnaryOpNode *operation = alloc_node<UnaryOpNode>(); + operation->operation = UnaryOpNode::OP_LOGIC_NOT; + operation->variant_op = Variant::OP_NOT; + operation->operand = in_operation; + return operation; +} + GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) { GDScriptTokenizer::Token op = previous; BinaryOpNode *operation = alloc_node<BinaryOpNode>(); @@ -2392,6 +2491,8 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_dictionary(ExpressionNode push_error(R"(Expected "=" after dictionary key.)"); } } + key->is_constant = true; + key->reduced_value = static_cast<IdentifierNode *>(key)->name; break; case DictionaryNode::PYTHON_DICT: if (!match(GDScriptTokenizer::Token::COLON)) { @@ -2438,7 +2539,7 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_attribute(ExpressionNode * if (for_completion) { bool is_builtin = false; - if (p_previous_operand->type == Node::IDENTIFIER) { + if (p_previous_operand && p_previous_operand->type == Node::IDENTIFIER) { const IdentifierNode *id = static_cast<const IdentifierNode *>(p_previous_operand); Variant::Type builtin_type = get_builtin_type(id->name); if (builtin_type < Variant::VARIANT_MAX) { @@ -2625,6 +2726,65 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_preload(ExpressionNode *p_ return preload; } +GDScriptParser::ExpressionNode *GDScriptParser::parse_lambda(ExpressionNode *p_previous_operand, bool p_can_assign) { + LambdaNode *lambda = alloc_node<LambdaNode>(); + lambda->parent_function = current_function; + FunctionNode *function = alloc_node<FunctionNode>(); + function->source_lambda = lambda; + + function->is_static = current_function != nullptr ? current_function->is_static : false; + + if (match(GDScriptTokenizer::Token::IDENTIFIER)) { + function->identifier = parse_identifier(); + } + + bool multiline_context = multiline_stack.back()->get(); + + // Reset the multiline stack since we don't want the multiline mode one in the lambda body. + push_multiline(false); + if (multiline_context) { + tokenizer.push_expression_indented_block(); + } + + push_multiline(true); // For the parameters. + if (function->identifier) { + consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after lambda name.)"); + } else { + consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after "func".)"); + } + + FunctionNode *previous_function = current_function; + current_function = function; + + SuiteNode *body = alloc_node<SuiteNode>(); + SuiteNode *previous_suite = current_suite; + current_suite = body; + + parse_function_signature(function, body, "lambda"); + + current_suite = previous_suite; + + bool previous_in_lambda = in_lambda; + in_lambda = true; + + function->body = parse_suite("lambda declaration", body, true); + + pop_multiline(); + + if (multiline_context) { + // If we're in multiline mode, we want to skip the spurious DEDENT and NEWLINE tokens. + while (check(GDScriptTokenizer::Token::DEDENT) || check(GDScriptTokenizer::Token::INDENT) || check(GDScriptTokenizer::Token::NEWLINE)) { + current = tokenizer.scan(); // Not advance() since we don't want to change the previous token. + } + tokenizer.pop_expression_indented_block(); + } + + current_function = previous_function; + in_lambda = previous_in_lambda; + lambda->function = function; + return lambda; +} + GDScriptParser::ExpressionNode *GDScriptParser::parse_invalid_token(ExpressionNode *p_previous_operand, bool p_can_assign) { // Just for better error messages. GDScriptTokenizer::Token::Type invalid = previous.type; @@ -2661,6 +2821,19 @@ GDScriptParser::TypeNode *GDScriptParser::parse_type(bool p_allow_void) { type->type_chain.push_back(type_element); + if (match(GDScriptTokenizer::Token::BRACKET_OPEN)) { + // Typed collection (like Array[int]). + type->container_type = parse_type(false); // Don't allow void for array element type. + if (type->container_type == nullptr) { + push_error(R"(Expected type for collection after "[".)"); + type = nullptr; + } else if (type->container_type->container_type != nullptr) { + push_error("Nested typed collections are not supported."); + } + consume(GDScriptTokenizer::Token::BRACKET_CLOSE, R"(Expected closing "]" after collection type.)"); + return type; + } + int chain_index = 1; while (match(GDScriptTokenizer::Token::PERIOD)) { make_completion_context(COMPLETION_TYPE_ATTRIBUTE, type, chain_index++); @@ -2906,7 +3079,7 @@ GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Ty // Logical { nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_AND }, // AND, { nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_OR }, // OR, - { &GDScriptParser::parse_unary_operator, nullptr, PREC_NONE }, // NOT, + { &GDScriptParser::parse_unary_operator, &GDScriptParser::parse_binary_not_in_operator, PREC_CONTENT_TEST }, // NOT, { nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_AND }, // AMPERSAND_AMPERSAND, { nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_OR }, // PIPE_PIPE, { &GDScriptParser::parse_unary_operator, nullptr, PREC_NONE }, // BANG, @@ -2956,7 +3129,7 @@ GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Ty { nullptr, nullptr, PREC_NONE }, // CONST, { nullptr, nullptr, PREC_NONE }, // ENUM, { nullptr, nullptr, PREC_NONE }, // EXTENDS, - { nullptr, nullptr, PREC_NONE }, // FUNC, + { &GDScriptParser::parse_lambda, nullptr, PREC_NONE }, // FUNC, { nullptr, &GDScriptParser::parse_binary_operator, PREC_CONTENT_TEST }, // IN, { nullptr, &GDScriptParser::parse_binary_operator, PREC_TYPE_TEST }, // IS, { nullptr, nullptr, PREC_NONE }, // NAMESPACE, @@ -3005,7 +3178,7 @@ GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Ty // Avoid desync. static_assert(sizeof(rules) / sizeof(rules[0]) == GDScriptTokenizer::Token::TK_MAX, "Amount of parse rules don't match the amount of token types."); - // Let's assume this this never invalid, since nothing generates a TK_MAX. + // Let's assume this is never invalid, since nothing generates a TK_MAX. return &rules[p_token_type]; } @@ -3147,24 +3320,10 @@ bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node } variable->exported = true; - // TODO: Improving setting type, especially for range hints, which can be int or float. + variable->export_info.type = t_type; variable->export_info.hint = t_hint; - if (p_annotation->name == "@export") { - if (variable->datatype_specifier == nullptr) { - if (variable->initializer == nullptr) { - push_error(R"(Cannot use "@export" annotation with variable without type or initializer, since type can't be inferred.)", p_annotation); - return false; - } - if (variable->initializer->type != Node::LITERAL) { - push_error(R"(To use "@export" annotation with type-less variable, the default value must be a literal.)", p_annotation); - return false; - } - variable->export_info.type = static_cast<LiteralNode *>(variable->initializer)->value.get_type(); - } // else: Actual type will be set by the analyzer, which can infer the proper type. - } - String hint_string; for (int i = 0; i < p_annotation->resolved_arguments.size(); i++) { if (i > 0) { @@ -3175,6 +3334,86 @@ bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node variable->export_info.hint_string = hint_string; + // This is called after tne analyzer is done finding the type, so this should be set here. + DataType export_type = variable->get_datatype(); + + if (p_annotation->name == "@export") { + if (variable->datatype_specifier == nullptr && variable->initializer == nullptr) { + push_error(R"(Cannot use simple "@export" annotation with variable without type or initializer, since type can't be inferred.)", p_annotation); + return false; + } + + bool is_array = false; + + if (export_type.builtin_type == Variant::ARRAY && export_type.has_container_element_type()) { + export_type = export_type.get_container_element_type(); // Use inner type for. + is_array = true; + } + + if (export_type.is_variant() || export_type.has_no_type()) { + push_error(R"(Cannot use simple "@export" annotation because the type of the initialized value can't be inferred.)", p_annotation); + return false; + } + + switch (export_type.kind) { + case GDScriptParser::DataType::BUILTIN: + variable->export_info.type = export_type.builtin_type; + variable->export_info.hint = PROPERTY_HINT_NONE; + variable->export_info.hint_string = Variant::get_type_name(export_type.builtin_type); + break; + case GDScriptParser::DataType::NATIVE: + if (ClassDB::is_parent_class(get_real_class_name(export_type.native_type), "Resource")) { + variable->export_info.type = Variant::OBJECT; + variable->export_info.hint = PROPERTY_HINT_RESOURCE_TYPE; + variable->export_info.hint_string = get_real_class_name(export_type.native_type); + } else { + push_error(R"(Export type can only be built-in, a resource, or an enum.)", variable); + return false; + } + break; + case GDScriptParser::DataType::ENUM: { + variable->export_info.type = Variant::INT; + variable->export_info.hint = PROPERTY_HINT_ENUM; + + String enum_hint_string; + for (const Map<StringName, int>::Element *E = export_type.enum_values.front(); E; E = E->next()) { + enum_hint_string += E->key().operator String().camelcase_to_underscore(true).capitalize().xml_escape(); + enum_hint_string += ":"; + enum_hint_string += String::num_int64(E->get()).xml_escape(); + + if (E->next()) { + enum_hint_string += ","; + } + } + + variable->export_info.hint_string = enum_hint_string; + } break; + default: + // TODO: Allow custom user resources. + push_error(R"(Export type can only be built-in, a resource, or an enum.)", variable); + break; + } + + if (is_array) { + String hint_prefix = itos(variable->export_info.type); + if (variable->export_info.hint) { + hint_prefix += "/" + itos(variable->export_info.hint); + } + variable->export_info.hint = PROPERTY_HINT_TYPE_STRING; + variable->export_info.hint_string = hint_prefix + ":" + variable->export_info.hint_string; + variable->export_info.type = Variant::ARRAY; + } + } else { + // Validate variable type with export. + if (!export_type.is_variant() && (export_type.kind != DataType::BUILTIN || export_type.builtin_type != t_type)) { + // Allow float/int conversion. + if ((t_type != Variant::FLOAT || export_type.builtin_type != Variant::INT) && (t_type != Variant::INT || export_type.builtin_type != Variant::FLOAT)) { + push_error(vformat(R"("%s" annotation requires a variable of type "%s" but type "%s" was given instead.)", p_annotation->name.operator String(), Variant::get_type_name(t_type), export_type.to_string()), variable); + return false; + } + } + } + return true; } @@ -3186,27 +3425,60 @@ template <MultiplayerAPI::RPCMode t_mode> bool GDScriptParser::network_annotations(const AnnotationNode *p_annotation, Node *p_node) { ERR_FAIL_COND_V_MSG(p_node->type != Node::VARIABLE && p_node->type != Node::FUNCTION, false, vformat(R"("%s" annotation can only be applied to variables and functions.)", p_annotation->name)); - switch (p_node->type) { - case Node::VARIABLE: { - VariableNode *variable = static_cast<VariableNode *>(p_node); - if (variable->rpc_mode != MultiplayerAPI::RPC_MODE_DISABLED) { - push_error(R"(RPC annotations can only be used once per variable.)", p_annotation); + MultiplayerAPI::RPCConfig rpc_config; + rpc_config.rpc_mode = t_mode; + for (int i = 0; i < p_annotation->resolved_arguments.size(); i++) { + if (i == 0) { + String mode = p_annotation->resolved_arguments[i].operator String(); + if (mode == "any") { + rpc_config.rpc_mode = MultiplayerAPI::RPC_MODE_REMOTE; + } else if (mode == "master") { + rpc_config.rpc_mode = MultiplayerAPI::RPC_MODE_MASTER; + } else if (mode == "puppet") { + rpc_config.rpc_mode = MultiplayerAPI::RPC_MODE_PUPPET; + } else { + push_error(R"(Invalid RPC mode. Must be one of: 'any', 'master', or 'puppet')", p_annotation); + return false; } - variable->rpc_mode = t_mode; - break; + } else if (i == 1) { + String sync = p_annotation->resolved_arguments[i].operator String(); + if (sync == "sync") { + rpc_config.sync = true; + } else if (sync == "nosync") { + rpc_config.sync = false; + } else { + push_error(R"(Invalid RPC sync mode. Must be one of: 'sync' or 'nosync')", p_annotation); + return false; + } + } else if (i == 2) { + String mode = p_annotation->resolved_arguments[i].operator String(); + if (mode == "reliable") { + rpc_config.transfer_mode = MultiplayerPeer::TRANSFER_MODE_RELIABLE; + } else if (mode == "unreliable") { + rpc_config.transfer_mode = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE; + } else if (mode == "ordered") { + rpc_config.transfer_mode = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE_ORDERED; + } else { + push_error(R"(Invalid RPC transfer mode. Must be one of: 'reliable', 'unreliable', 'ordered')", p_annotation); + return false; + } + } else if (i == 3) { + rpc_config.channel = p_annotation->resolved_arguments[i].operator int(); } + } + switch (p_node->type) { case Node::FUNCTION: { FunctionNode *function = static_cast<FunctionNode *>(p_node); - if (function->rpc_mode != MultiplayerAPI::RPC_MODE_DISABLED) { + if (function->rpc_config.rpc_mode != MultiplayerAPI::RPC_MODE_DISABLED) { push_error(R"(RPC annotations can only be used once per function.)", p_annotation); + return false; } - function->rpc_mode = t_mode; + function->rpc_config = rpc_config; break; } default: return false; // Unreachable. } - return true; } @@ -3260,6 +3532,9 @@ String GDScriptParser::DataType::to_string() const { if (builtin_type == Variant::NIL) { return "null"; } + if (builtin_type == Variant::ARRAY && has_container_element_type()) { + return vformat("Array[%s]", container_element_type->to_string()); + } return Variant::get_type_name(builtin_type); case NATIVE: if (is_meta_type) { @@ -3623,6 +3898,10 @@ void GDScriptParser::TreePrinter::print_dictionary(DictionaryNode *p_dictionary) } void GDScriptParser::TreePrinter::print_expression(ExpressionNode *p_expression) { + if (p_expression == nullptr) { + push_text("<invalid expression>"); + return; + } switch (p_expression->type) { case Node::ARRAY: print_array(static_cast<ArrayNode *>(p_expression)); @@ -3651,6 +3930,9 @@ void GDScriptParser::TreePrinter::print_expression(ExpressionNode *p_expression) case Node::IDENTIFIER: print_identifier(static_cast<IdentifierNode *>(p_expression)); break; + case Node::LAMBDA: + print_lambda(static_cast<LambdaNode *>(p_expression)); + break; case Node::LITERAL: print_literal(static_cast<LiteralNode *>(p_expression)); break; @@ -3710,12 +3992,17 @@ void GDScriptParser::TreePrinter::print_for(ForNode *p_for) { decrease_indent(); } -void GDScriptParser::TreePrinter::print_function(FunctionNode *p_function) { +void GDScriptParser::TreePrinter::print_function(FunctionNode *p_function, const String &p_context) { for (const List<AnnotationNode *>::Element *E = p_function->annotations.front(); E != nullptr; E = E->next()) { print_annotation(E->get()); } - push_text("Function "); - print_identifier(p_function->identifier); + push_text(p_context); + push_text(" "); + if (p_function->identifier) { + print_identifier(p_function->identifier); + } else { + push_text("<anonymous>"); + } push_text("( "); for (int i = 0; i < p_function->parameters.size(); i++) { if (i > 0) { @@ -3769,6 +4056,18 @@ void GDScriptParser::TreePrinter::print_if(IfNode *p_if, bool p_is_elif) { } } +void GDScriptParser::TreePrinter::print_lambda(LambdaNode *p_lambda) { + print_function(p_lambda->function, "Lambda"); + push_text("| captures [ "); + for (int i = 0; i < p_lambda->captures.size(); i++) { + if (i > 0) { + push_text(" , "); + } + push_text(p_lambda->captures[i]->name.operator String()); + } + push_line(" ]"); +} + void GDScriptParser::TreePrinter::print_literal(LiteralNode *p_literal) { // Prefix for string types. switch (p_literal->value.get_type()) { |